WATSON-MARLOW BREDEL MANUALS m-620dun-du-gb-02 Watson-Marlow 620DuN / 620Du pumps Contents 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Declaration of conformity 3 Declaration of incorporation 3 Five-year warranty 3 When you unpack your pump 4 Information for returning pumps 5 Peristaltic pumps - an overview 5 Safety notes 6 Pump specifications 8 8.1 Pressure capability 12 8.2 Dimensions 13 Good pump installation practice 14 9.1 General recommendations 14 9.
3 24 25 26 27 28 29 22.13 Supply voltages 22.14 RS485 input Automatic control wiring without the 620N module 23.1 Speed: analogue input 1 23.2 Scaling: analogue input 2 23.3 Speed: analogue output 23.4 Tachometer frequency output 23.5 Run/stop input 23.6 Direction input 23.7 Auto / manual toggle input 23.8 MemoDose input 23.9 Leak detection input 23.10 Pump status outputs 23.10.1 Logic output 1 23.10.2 Logic output 2 23.10.3 Logic output 3 23.10.4 Logic output 4 23.
DuN, Du 1 Declaration of conformity This declaration was issued for Watson-Marlow 620DuN and 620Du pumps on September 19, 2005. When this pump unit is used as a stand-alone pump it complies with: Machinery Directive 98/37/EC, Low Voltage Directive 73/23/EC, EMC Directive 89/336/EC. This pump is ETL listed: ETL control number 3050250. Cert to CAN/CSA std C22.2 No 61010-1. Conforms to UL std 61010A-1. See 8 Pump specifications.
Conditions of and specific exceptions to the above warranty are: Conditions Products must be returned by pre-arrangement, carriage-paid, to WatsonMarlow, or a Watson-Marlow approved service centre. All repairs or modifications must have been made by Watson-Marlow Limited, or a Watson-Marlow approved service centre or with the express permission of Watson-Marlow.
up, voltage selection and fuse inspection and then re-affixed before the pump is operated. The designated mains power lead for your pump PC-readable CDROM containing these operating instructions Quick Start manual Note: Some versions of this product will include components different from those listed above. Check against your purchase order. Storage This product has an extended shelf life. However, care should be taken after storage to ensure that all parts function correctly.
finger and sliding it along: fluid is expelled from one end of the tube while more is drawn in at the other. Animal digestive tracts function in a similar way. Suitable applications Peristaltic pumping is ideal for most fluids, including viscous, shear-sensitive, corrosive and abrasive fluids, and those containing suspended solids. They are especially useful for pumping operations where hygiene is important. Peristaltic pumps operate on the positive displacement principle.
Fundamental work with regard to lifting, transportation, installation, starting-up, maintenance and repair should be performed by qualified personnel only. The unit must be isolated from mains power while work is being carried out. work. In the UK this person should also be familiar with the Health and Safety at Work Act 1974. There are moving parts inside the pumphead.
Pump specifications DuN DuN, Du Labels fixed to the rear of the pump contain manufacturer and contact details, product reference number, serial number and model details. The same information is carried on the drive’s backplate, accessible when the 620N module is removed. The picture below is how a 620Du looks from the box. The number of connectors varies according to the model. 620DuN, IP66 NEMA 4X model and 620Du, IP31 model This pump can be controlled from the keypad or remotely.
Outputs A 0-10V, 4-20mA or 0-1478Hz output signal provides feedback of the pump speed. There are four relay status outputs which can be configured in software for a variety of pump parameters. MemoDose Allows repeat dosing. Stores in memory a pulse count from the motor. This count is repeated each time START is pressed to provide a single-shot dose. Calibration Full calibration with default figures for a range of pumpheads and tubes. Calibration dose facility.
Pump specifications Control range (turndown ratio) Supply voltage/frequency Maximum voltage fluctuation Installation category (overvoltage category) Power consumption Full load current Eprom version Enclosure rating - 620DuN Enclosure rating - 620Du 0.1-265rpm (2650:1) Filtered 100-120V/200-240V 50/60Hz 1ph ±10% of nominal voltage. A well regulated electrical mains supply is required along with cable connections conforming to the best practice of noise immunity II 250VA <1.1A at 230V; <2.
Standards Safety of machinery—electrical equipment of machines: BS EN 60204-1 Safety requirements for electrical equipment for measurement, control and laboratory use: BS EN 61010-1 incorporating A2 Category 2, Pollution degree 2 Degrees of protection provided by enclosures (IP code): BS EN 60529 amendments 1 and 2 Conducted emissions: BS EN 55011 A1 and A2, Class A, called by BS EN 61000-6-4 Radiated emissions: BS EN 55011 A1 and A2, Class A, called by BS EN 61000-6-4 Electrostatic discharge: BS EN 61000-4
8.1 Pressure capability 0-4 bar higher pressure pumping This pump’s default running speed is 165rpm. It can be run at any speed up to 265rpm. Please note, however: The 620RE and 620RE4 rotor warranty is limited to 2 bar from 165rpm to 265rpm. A warning is displayed when the user sets the speed above 165rpm. Note: Applies to 620RE MarkII and 620RE4 MarkII pumpheads only. (The 620LG is not limited). The pump’s software records the duration of operation above 165rpm.
8.2 Dimensions Unit weights + 620RE4 + 620L, 620LG 16.5kg, 36lb 6oz 19.6kg, 43lb 3oz Drive only 20.1kg, 44lb 5oz 24.3kg, 53lb 9oz IP66 NEMA 4X 17.4kg, 38lb 6oz 20.5kg, 45lb 3oz 21.0kg, 46lb 5oz 25.
DuN, Du 9 Good pump installation practice 9.1 General recommendations Position A correctly engineered installation will promote long tube life. Site the pump on a flat, horizontal, rigid surface, free from excessive vibration, to ensure correct lubrication of the gearbox. Allow a flow of air around the pump to ensure that heat can be dissipated. Ensure that the temperature around the pump does not exceed 40C. Do not stack other 620 pumps on top of this pump.
9.2 Do’s and do not’s Do not build a pump into a tight location without adequate airflow around the pump. Do ensure that when the 620N watertight module is fitted the seals are intact and properly located. Ensure that the holes for cable glands are properly sealed to maintain the IP66 / NEMA 4X rating. Do not strap the control and mains power cables together. Do keep delivery and suction tubes as short and direct as possible - though ideally not shorter than 1m - and follow the straightest route.
DuN, Du 10 Connecting this product to a power supply A well regulated electrical mains supply is required along with cable connections conforming to the best practice of noise immunity. It is not recommended to site these drives alongside “dirty” electrical mains supplies such as 3-phase contactors and inductive heaters without special attention being paid to unacceptable mains-borne noise.
Input line fusing: type T5A H 250V 20mm time-delayed cartridge fuse, located in a fuseholder in the centre of the switchplate at the rear of the pump. Power interruption: This pump has an auto-restart feature which, when active, will restore the pump to the operating state it was in when power was lost. See 18.12 Auto-restart. Stop / start power cycles: Do not power up/power down for more than 100 starts per hour, whether manually or by means of the auto-restart facility.
When the language is chosen this menu will not appear again and all menus will appear in the language you chose. (Language can be reset as described later. See 18.19 Language.) The pump displays the Watson-Marlow start-up screen for four seconds, followed by the pump model identity screen for four seconds, and then the manual mode main screen. The rotation symbol on the display indicates clockwise rotation. The default speed setting is 165rpm, but 265rpm is available (see 18.
DuN, Du 13 Switching the pump on in subsequent power cycles (if not in auto-restart mode) Switch on the power supply at the rear of the pump. The pump runs a poweron test to confirm proper functioning of the memory and hardware. If a fault is found, an error message is displayed. See 26.1 Error codes. The pump displays the Watson-Marlow start-up screen for four seconds followed by the pump model identity screen for four seconds, and then the manual mode main screen.
DuN, Du 14 Manual operation 14.1 Keypad functions All settings and functions of the pump in manual mode are set and controlled by means of key-presses. Immediately after the start-up display sequence detailed above, the manual mode main screen will be displayed. The currently selected rotation direction is indicated on the display by a clockwise or counter-clockwise segmented arrow. If an exclamation mark ( ! ) shows, it indicates that Auto-restart is on.
AUTO (SHIFT, 9): has no effect if the pump is running in auto mode. Stops the pump if it is running in Manual mode and displays a screen offering three choices: manual control, analogue control or network control. Use the UP and DOWN keys to make a choice. Press the ENTER key to confirm your decision. When started under analogue or network control, the pump runs at the speed set by any analogue or serial communications signal applied to the pump, and in the direction shown in the display.
Keypress combinations cause the pump to function as follows: Note: A number of the controls listed below are shortcuts to commands which are also available through the Main menu. See 15 Main menu. UP and 1 (DIRECTION) on power-up: toggles the keypad beep on and off. START on power-up: switches on the Auto-restart facility. See 18.12 Autorestart. STOP on power-up: switches off the Auto-restart facility. See 18.12 Autorestart. STOP and UP while the pump is stopped: turns the display backlight on.
14.4 Keypad lock The keypad can be locked to prevent changes to pump speed or other settings, and make it possible only to start or stop the pump. The padlock symbol shows on the display. While the pump is running, hold down the START key for two seconds. The padlock symbol shows and only the START and STOP keys function. The keypad may also be locked while the pump is stopped. Hold down the STOP key for two seconds. The padlock symbol shows and only the START and STOP keys function.
14.7 Backlight To turn the display backlight on: Depress the STOP and UP keys together. To turn the display backlight off: Depress the STOP and DOWN keys together. See 18.17 Backlight. 14.8 Auto-restart This pump offers an auto-restart feature. When active on power loss, it will restore the pump when power returns to the operating state it was in when power was lost.
DuN, Du 15 Main menu 15.1 Keypad functions in menu screens In addition to their functions in other operations, the following keys have specific actions in menu screens: STOP: In general, STOP functions as a “go back” key, taking the user up one menu level without making a change. UP: The UP key is used in menu item selection: it moves a highlight up the menu. When a numerical entry screen is displayed, pressing UP increases the number displayed.
Pin out details Du Selecting Pin out details causes the pump to display an information screen and then its preset pin and voltage details under 19 headings: Analogue input 1, Analogue input 2, Analogue output, Tacho output, Direction enable, Direction input, Run/Stop input, Leak input, Auto/Man toggle, Dose input, Output 1, Output 2, Output 3, Output 4, Supply, 0 volts, Earth, Others and Exit. DuN Pin out information is not relevant to the 620DuN IP66/NEMA 4X pumps.
DuN, Du E SS C PROC TION P - S E CUR E IN 16 PIN-secure process protection E PROT The 620DuN and 620Du feature PIN-secure process protection. This allows the pump to be configured to suit the application, and for the setup to be protected by two levels of PIN code.
DuN, Du 17 Head and tubing calibration The pump can display flowrate in a choice of units as well as speed in revolutions per minute. It must first be calibrated. Pump calibration can be limited to users who correctly enter a three-digit security code. If a security code has been set, selecting Change from the calibration details screen and confirming with the ENTER key causes the pump to display the Security code entry sequence. See 18.22 Security code.
Head and tube If Head and tube is selected, the pump displays a list of standard pumpheads that can be fitted to the pump. Use the UP and DOWN keys to make a selection. Press ENTER to confirm. An example is shown here. The pump displays tube sizes, as below. Tube If Tube is selected or a pumphead choice has just been made, the pump displays a list of standard tube sizes that can be used in the pumphead previously identified. Use the UP and DOWN keys to make a selection. Press ENTER to confirm.
Calibration dose The pump offers to run a calibration dose. Use the UP and DOWN keys to choose Yes or No. Press ENTER to confirm. Examples are shown here. If No is selected after a tube selection has been made (see Tube above), the pump briefly displays a confirmation screen showing current head, tube and flow settings, and redisplays the main menu.
Measure the quantity of fluid dispensed. The pump displays its calculated dose, based on previous calibration data. Use the numeric keys to adjust this reading to match the measured volume. Press ENTER. The pump briefly displays the new head, tube and flow settings, and displays the main running screen. Example figures are shown here. Note: If the pump has been set to display flow rate in units of mass (see 18.
18.
DuN, Du When the pump is under remote control, it tracks an analogue signal from the user’s remote control system to the i/p terminal of the Analogue 1 and Analogue 2 connectors at the rear of the pump within the ranges 4-20mA, 0-10V or 1-5V. The Trim setup sequence allows the user to customise the process-signal-to-pump-speed calibration. The sequence may be entered directly from the Setup menu or from the Analogue setup menu.
Input 1 - speed allows the user to tell the pump which signal type he will apply to Analogue 1, or to choose the program option. If he selects Program from the subsequent menu, the user can choose his input type and tell the pump the speeds at which to operate on receiving a low or high process control signal. See 18.2.1 Input 1 - speed.
Program Select Program using the UP or DOWN keys and press ENTER to confirm. The pump offers two choices: mA and V (0-10V). Use the UP or DOWN keys to make a selection and press ENTER to confirm your decision. The pump displays a screen allowing you to set the speed for low signal input (4mA or 0V). Use the UP and DOWN keys to scroll the display to your chosen speed and press ENTER to confirm the figure. The pump displays a screen allowing you to set the speed for high signal input (20mA or 10V).
the UP or DOWN keys to make a selection and press ENTER to confirm your decision. The pump displays a screen inviting the user to enter the required speed proportion for low signal input (4mA or 0V) as a value from 0% to 100% Enter your value using the UP or DOWN keys and confirm by pressing ENTER. A similar screen allows the user to enter the required speed proportion for high signal input (20mA or 10V) as a value from 0% to 100%. Enter the value in the same way.
keys. Press ENTER to confirm your choice. The pump displays a screen allowing you to choose the format of the manual mode main screen. Use the UP and DOWN keys to choose and press ENTER to confirm your decision. If you choose Flowrate and you have not calibrated the pump since switching it on, a warning screen is displayed for 4 seconds. The warning does not appear if the display screen formats are cycled again, unless the pump has been switched off in the mean time.
18.5 Baud The pump can be set to communicate with control devices at a choice of baud rates. In the first screen of the Setup menu select Baud using the UP and DOWN keys. Press ENTER to confirm your choice. The pump displays a screen allowing you to change the pump’s baud rate. Use the UP and DOWN keys to select 1200, 2400, 4800 or 9600 (or, 620DuN only, 19k2) and press ENTER to confirm your decision. The pump displays the first screen of the Setup menu. 18.
18.8 Flow units The pump can display its flow rate in metric (SI) or US (imperial) units of volume or mass. In the second screen of the Setup menu select Flow units using the UP and DOWN keys. Press ENTER to confirm your choice. The pump displays a screen offering Metric or US. Use the UP and DOWN keys to choose and press ENTER to confirm your decision. If you chose Metric, the pump offers a choice of units: ml/min, l/min, l/hr, g/min or kg/hr.
18.9 Run time The pump cumulatively records hours of motor operation. The figure can be displayed or reset to zero. In the third screen of the Setup menu select Run time using the UP and DOWN keys. Press ENTER to confirm your choice. The pump briefly displays the total hours its motor has operated since the last time the counter was reset to zero hours, followed by an opportunity to reset the counter to zero hours. An example is shown here.
Leak detected When used with a leak detector, this output provides an alarm when the pump has been automatically switched off following tube failure. Head Provides an alarm when the pumphead guard is open. If it is running, the pump will stop. DuN Outputs 1-4 are available as single-pole change-over relay contacts: Relay 1, 2, 3 and 4. Connect to the normally open or normally closed contacts of the relay as required and configure the pump’s software accordingly. See below in this section.
In the third screen of the Setup menu select Outputs using the UP and DOWN keys. Press ENTER to confirm your choice. The pump displays a screen allowing you to configure each of the four outputs, or to exit this menu. Use the UP and DOWN keys to choose and press ENTER to confirm your decision. If Output 1 is chosen, the pump displays the six options.
ENTER to confirm. The pump briefly displays a confirmation screen and returns the user to the third screen of the Setup menu. If Yes is chosen, the pump briefly displays a confirmation screen and returns the user to the third screen of the Setup menu. Example screens are shown here. Note: The confirmation screen indicates whether Remote stop is enabled or disabled, and displays the command sense of the remote control switch even if Remote stop has been disabled.
Alternatively ... Stop the pump. Turn off the mains power switch at the rear of the pump. Hold down the START key and turn on the mains power switch. The ! symbol shows on the display. Start the pump. If the mains supply is interrupted the pump will automatically restart when the mains power returns. To remove auto-restart switch off the mains power at the rear of the pump. Hold down the STOP key and turn the mains power switch on. The ! symbol does not appear.
and DOWN keys. Press ENTER to confirm your choice. The pump displays a screen allowing the user to set the minimum speed of the pump equal to or higher than the minimum available. Use the numeric keys to set the minimum allowed speed and press ENTER to confirm the figure. The pump returns the user to the fourth screen of the Setup menu. 18.
vious setting. If the setting displayed is correct, press ENTER. The pump redisplays the fifth screen of the Setup menu. If you wish to change the setting, use the UP and DOWN keys to enter the current date (two digits), month (three letters), year (four digits), hour, minute and second (all two digits), pressing ENTER to confirm each one. When ENTER is pressed to confirm the seconds, the pump redisplays the fifth screen of the Setup menu. 18.
18.19 Language The pump can be set to operate in several languages. In the sixth screen of the Setup menu select Language using the UP and DOWN keys. Press ENTER to confirm your choice. In the next screen, choose a language using the UP and DOWN keys. Press ENTER to confirm your choice. The pump redisplays the sixth Setup screen in your chosen language. All screens will subsequently appear in your chosen language. 18.20 Defaults All the pump’s user-set data can be reset to factory defaults.
18.21 Beep The pump keypad can operate silently or indicate a positive key-press with a beep sound. In the sixth screen of the Setup menu select Beep using the UP and DOWN keys. Press ENTER to confirm your choice. In the next screen, use the UP and DOWN keys to choose On or Off. Press ENTER to confirm your decision. The pump redisplays the sixth Setup screen. Alternatively ... To toggle the sound on and off, stop the pump. Turn off the mains power switch at the rear of the pump.
18.22 Security code Access to the pump’s Setup and Calibration menus, direction control and keypad lock can be restricted to those who correctly enter a three-digit security code: the main code. A secondary user code can be set, which permits PIN access to calibration, direction and keypad lock, but blocks access to Setup. See 18 Setup, 17 Calibrate, 14.3 Direction and 14.4 Keypad lock. The codes must first be set. In the sixth screen of the Setup menu select Security code using the UP and DOWN keys.
main code, the pump briefly displays a confirmation message and redisplays the sixth Setup screen. Access to the Setup and Configuration menus, direction control and keypad lock is now protected by the new security code. If STOP is pressed during code entry, the pump returns the user to the sixth Setup screen. If STOP is pressed during code confirmation, the pump returns the user to the first digit-entry screen. Note: A user code cannot be set unless a main code has previously been set.
The Pin out details menu The Pin out details menu occupies five screens. The first two are shown here. To move from one screen to subsequent screens, repeatedly press DOWN. Each item is highlighted in turn until the last item on the screen is highlighted. A further press on the DOWN key displays the next screen of the menu, with the first item highlighted. Follow the reverse procedure using the UP key to move to an item on a previous screen of the menu.
DuN, Du 20 MemoDose Each time the pump is started by pressing START, it records the number of pumphead revolutions which occur until STOP is pressed. The number of revolutions is proportional to the volume of fluid which has been dispensed: the dose. The MemoDose facility allows the user to repeat-dose a precise volume of fluid. To do so, a quantity of fluid must be dispensed as the master dose which the MemoDose facility can repeat exactly or proportionately.
To repeat the dose The pump has recorded the number of pumphead revolutions required to dispense the master dose. If the volume of fluid in the measuring vessel is the volume required, press START to repeat the dose. If the volume of fluid in the measuring vessel differs from the volume required, the percentage may be adjusted within the limits 1% to 999% of the master dose. Use the UP or DOWN keys to alter the percentage. Press START to dispense the new dose.
20.2 Footswitch operation and other remote inputs and outputs with MemoDose A footswitch can be used to trigger MemoDose dispensing as a hands-free alternative to pressing START. To operate MemoDose with a footswitch, briefly press the footswitch while the MemoDose percentage screen is displayed. The remote run/stop input is operational. If a dose is interrupted by a remote stop signal, the dose will continue from where it stopped when the state is changed to run. Remote direction control is disabled.
DuN 22 Automatic control wiring using the 620N module Interfacing the pump with other devices is by means of screw-terminal connectors within the 620N watertight module at the rear of the pump. Suitable cable must be passed into the module through one or more watertight cable glands and connected appropriately. The module must be removed to allow this. It is important to check that the pump’s voltage setting matches the supply. The voltage selection switch is on the rear panel of the drive.
To replace the 620N watertight module: Check that the fuse in the fuseholder (ringed) does not need to be replaced. Check that the voltage selector switch is correctly set. Check that the sealing strip is fully in its channel on the face of the module. Attach the module’s earth link wire. Replace and tighten its screw to 2Nm. Push home the female (upper) and male 25-way D-connectors. Hold the module in place.
For EMC protection, shielded control cable should be used. The shielding should be terminated to one of the pcb mounting screws or to the adjacent spade connection (where fitted). For improved EMC protection in extremely noisy environments, shielded cable may be used in conjunction with watertight EMC metal cable glands. These must be earthed to the module by adding an M16x1.5 nut with serrated edges to ensure proper contact with the inside of the module.
the cable’s conductors through the gland. However, to ensure a seal, cable with an undamaged sheath must be present within the gland when it is tightened. Twist a suitable length of the cable screen. Loosen one of the pcb retaining screws and wind the shielding round it. Secure the screen by refastening the screw. Alternatively, secure the cable screen to the adjacent spade connection (where fitted). Push the bared conductor into the square hole in the connector.
RS485 settings Baud Set in Setup, Baud. Factory default is 9600 Parity None Stop bits 2 Handshake None Data bits 8 Auto echo On Never apply mains voltage to the D-connectors. Apply the correct signals to the pins shown. Limit signals to the maximum values shown. Do not apply voltage across other pins. Permanent damage, not covered by warranty, may result. 22.
4-20mA circuit impedance: 250Ω. For voltage modes, a stable, reliable voltage source can be used with a DC voltmeter. Circuit impedance: 22kΩ. Inverting the response is set up in software. Do not invert the polarity of the terminals. A remote potentiometer with a nominal value of between 1k and 2k with a minimum of 0.25W should be wired between the terminals of the Rem-pot connector (J7) and the i/p terminal of the Analogue 1 connector (J5).
age in the Setup menu. Otherwise the reference voltage supply from the Rem-pot connector will be overloaded and will not provide a full 5V or 10V. The speed of the pump as set by Analogue 1 is scaled in proportion to the signal from Analogue 2 according to the formula y=as, where a is the speed set by Analogue 1, s is the scaling set by Analogue 2 (0V or 4mA = 0, increasing linearly to 10V or 20mA = 1), and y is the scaled rotation speed.
Important: general instructions for remote control inputs All remote control inputs can be wired in two ways: Logic A logic voltage between 5V TTL and 24V industrial logic may be wired to the input. The pump is configured to operate without modification anywhere in this range. Any of the 0V terminals - though preferably the 0V terminal associated with the desired input - is connected to the control device’s 0V to make the circuit. Low is equivalent to 0V. High is equivalent to 5V→24V.
22.9 Auto / manual toggle input Connect a remote switch between the +5V terminal and the i/p terminal of the Auto-man i/p connector (J1). Closed switch for automatic control; open switch for manual control. Alternatively a logic input may be applied to the i/p terminal of the Auto-man i/p connector, ground to the 0V terminal. High input for automatic control; low input for manual control. 22.
Important: pump status outputs Outputs 1-4 are available as single-pole change-over relay contacts: Relay 1, 2, 3 and 4. Connect to the normally open or normally closed contacts of the relay as required and configure the pump’s software accordingly. See 18.10 Outputs. Note: The maximum rating on the relay contacts of this pump is 30V DC; maximum load 30W. Note: Also suitable for low power: ie, 1mA at 5VDC minimum. 22.12 Outputs 1, 2, 3, 4 Note: Relay 1 (J14) is represented here.
DC Voltage Max load Typical use 10mA Voltage supply for inputs using remote switch. Possible voltage supply for outputs if only 5V is required. +12V 10mA Possible voltage supply for inputs using remote switch. Possible voltage supply for outputs. Voltage supply for WatsonMarlow Tube Monitor leak detector. Part voltage supply (-12V also needed) for the Watson-Marlow proximity switch. -12V 10mA Part voltage supply (+12V also needed) for the Watson-Marlow proximity switch.
Du 23 Automatic control wiring without the 620N module Interfacing the pump with other devices is by means of three D-connectors at the rear of the pump. There are two 25-way D-connectors. The top one is male, the bottom one is female. Mating female and male connectors, screened for EMC compatibility, must be conventionally soldered to screened control cables. Recommended control cable: 7 strands 0.2mm, 24AWG, screened, circular, up to 25-core.
RS232 control RS232 network control is available via a 9-pin D-connector wired as below. RS232 is the mode which allows the pump to be controlled by computers and process controllers. It can control every function of the pump, and pass data back to the controller for closed loop operation. Up to 16 pumps can be individually controlled. Recommended control cable: 7 strands 0.2mm, 24AWG, screened, circular, up to 4core. The cable screen should be earthed through the metalwork of the shell.
RS232 settings Baud Set in Setup, Baud. Factory default is 9600 Parity None Stop bits 2 Handshake None Data bits 8 Auto echo On Pin Function Pin Function 1 - 6 - 2 RX (receive data) 7 - 3 TX (transmit data) 8 CTS (clear to send. Active = low) 4 - 9 - 5 0V Shell Note: The CTS connection to pin 8 is optional, for use when error conditions are required. Never apply mains voltage to the D-connectors. Apply the correct signals to the pins shown.
4-20mA circuit impedance: 250Ω. For voltage modes, a stable, reliable voltage source can be used with a DC voltmeter. Circuit impedance: 22kΩ. Inverting the response is set up in software. Do not invert the polarity of the pins. A remote potentiometer with a nominal value of between 1k and 2k with a minimum of 0.25W should be wired as shown. When using a remote potentiometer, do not apply a voltage or current control input signal at the same time.
23.3 Speed: analogue output An analogue output signal is available as a 0V-10V signal on pin 2 of the lower Dconnector. Ground to pin 15. The voltage is fixed and directly proportional to the pumphead rotation speed. 0V = zero speed; 10V = maximum speed. An analogue output signal is available as a 4-20mA signal on pin 12 of the lower Dconnector, requiring a 250Ω resister in series. Ground to pin 20. The current is fixed and directly proportional to the pumphead rotation speed.
Important: general instructions for remote control inputs All remote control inputs can be wired in two ways: Logic A logic voltage between 5V TTL and 24V industrial logic may be wired to the input pin. The pump is configured to operate without modification anywhere in this range. Any of the 0V pins is connected to the control device’s 0V to make the circuit. One 0V pin is identified in the wiring diagram, but any may be used. Low is equivalent to 0V. High is equivalent to 5V→24V.
between pins 5 and 19 of the lower D-connector. Open switch for clockwise rotation, closed switch for counter-clockwise rotation. Alternatively a logic signal may be applied to pin 5 of the lower D-connector, ground to pin 17. Low input for clockwise rotation, high input for counter-clockwise rotation. With no connection the pump defaults to clockwise rotation. 23.7 Auto / manual toggle input Connect a remote switch between pins 3 and 18 of the upper D-connector.
23.9 Leak detection input Connect a remote leak-detection device between pins 2 and 18 of the upper D-connector. Closed circuit indicates a leak. Alternatively a logic input may be applied to pin 2 of the upper D-connector, ground to pin 15. High input indicates a leak. Connect a Watson-Marlow leak detector in the same way, drawing 12V to power it from pin 21 of the upper D-connector.
23.10 Pump status outputs Important: pump status outputs All four outputs can be configured in software to output a range of parameters: see 18.10 Outputs under Setup. Outputs 1 and 2 are available simultaneously from the upper and lower D-connectors. The outputs from the lower D-connector operate at 5V TTL only. All four outputs available from the upper D-connector are open-collector.
23.10.2 Logic output 2 Output 2 is taken from pin 11 of the upper D-connector, depending on the logic state of the function assigned to Output 2. Alternatively, a load such as a relay coil may be connected to pin 11, ground to pin 17. Current will flow through the circuit depending on the logic state of the function assigned to Output 2. Do not connect to any device requiring more than 50mA. Additionally, output 2 is available as a 5V TTL logic signal on pin 11 of the lower Dconnector.
23.10.3 Logic output 3 Output 3 is taken from pin 13 of the upper D-connector, depending on the logic state of the function assigned to Output 3. Alternatively, a load such as a relay coil may be connected to pin 13, ground to pin 17. Current will flow through the circuit depending on the logic state of the function assigned to Output 3. Do not connect to any device requiring more than 50mA. By default, output 3 is configured to indicate Auto/Man status. See 12 Switching the pump on for the first time.
23.11 Supply voltages In the table below, “Max load” is the maximum total load on each supply irrespective of the number of connections. DC Voltage +5V Max load 10mA Lower D 9, 19, 23 Upper D Typical use 18, 19 Voltage supply for inputs using remote switch. Possible voltage supply for outputs if only 5V is required. Pin 9 is specifically used for footswitch / handswitch operation +12V 10mA 25 21 Possible voltage supply for inputs using remote switch. Possible voltage supply for outputs.
DuN, Du 24 Automatic control and operation Check that the pump is ready to run before selecting automatic operation. Remote control signals may start the pump without warning. How to get into auto operation While the manual mode main screen is displayed, press AUTO (SHIFT, 9), or apply a high signal (5-24V) to the remote auto / manual input. If auto entry was triggered remotely, the pump responds to the analogue signal as soon as this is done and shows the “AUTO” icon.
the pump rotates after receiving a low signal on Analogue 1 (4mA, 1V or 0V); the speed at which the pump rotates after receiving a high signal on Analogue 1 (20mA, 5V or 10V); the set speed (that is: the speed at which the pump is currently rotating according to the analogue speed signal and the analogue scaling signal if scaling is set); and the flowrate in the units selected (see 18.8 Flow units). The scaling percentage is also displayed if it is set.
DuN, Du 25 Network control and operation Check that the pump is ready to run before selecting network operation. Remote control signals may start the pump without warning. How to get into network operation While the manual mode main screen is displayed, press the AUTO (SHIFT, 9) key. The pump offers three choices: Analogue, Manual and Network. Use the UP and DOWN keys to choose and press ENTER to confirm. Selecting Manual returns the user to the manual mode main screen. See 14 Manual operation.
How to get out of network operation Pressing the MAN (SHIFT, 6) key sets the pump to manual operation and retains the set speed and run status from its previous operation in network mode. See 14 Manual operation. Emergency stop In an emergency press the STOP key. The pump stops and displays an interruption screen, from which select Continue to return to network control, Manual to set the pump to manual control (see 14 Manual operation), or Menu to display the main menu (see 15 Main menu).
25.1 RS232 and RS485 command strings Command Parameters Meaning nCA - Clear LCD display nCH - Home the cursor nDO xxxxxxxxxx<,yyyyy> Set and run one dose of xxxxxxxxxx tacho pulses, with optional drip of yyyyy (maximum 11,000) tacho pulses. See note 1 nTC - Clear the cumulative tachometer count nSP xxx.x Set speed to xxx.
DuN, Du 26 Troubleshooting If the pump display remains blank when the pump is on, make the following checks: Check the position of the voltage selector switch at the rear of the pump. Check the mains power switch at the rear of the pump. Check that mains power is available to the pump. Check the fuse in the fuseholder in the centre of the switchplate at the rear of the pump. Check the fuse in the mains power plug if one is present.
26.1 Error codes If an internal error occurs, a flashing error screen is displayed. Note: Signal out of range, Over signal, No signal and Leak detected error screens report the nature of an external signal. They do not flash. Error condition Suggested action RAM write error Attempt to reset by switching power OFF / ON. Or seek support RAM corruption Attempt to reset by switching power OFF / ON. Or seek support OTP ROM error / corruption OTP ROM read error Attempt to reset by switching power OFF / ON.
DuN, Du 27 Drive maintenance There are no user serviceable parts inside the pump. The unit should be returned to Watson-Marlow or its appointed agents or distributors for service.
DuN, Du Pumphead use is independent of drive ingress protection. No reference to ingress protection rating or drive model (620DuN or 620Du) is made throughout the pumphead sections of this manual. 29 620RE MarkII, 620RE4 MarkII and 620R MarkII pumpheads Note: MarkII pumpheads differ from MarkI pumpheads as follows: they have a new guard-switching arrangement which is not compatible with 623/624 drives. Similarly, older guards are incompatible with 620 drives.
29.3 620RE, 620RE4 and 620R pumping conditions Pressure and viscosity All pressure values in this operating instruction, from which performance and life figures have been calculated, relate to peak pipeline pressures. Although rated to 4 bar peak pressure, this pump will generate in excess of 4 bar peak pressure if pipeline restrictions are in place. In instances where it is critical that a peak pressure of 4 bar is not exceeded, pressure relief valves should be installed in the pipeline.
29.5 620RE, 620RE4 and 620R general operation Always isolate the pump from the mains power supply before opening the guard or performing any positioning, removal or maintenance. Opening the pumphead guard Unlock the guard with the 5mm Allen key provided (or a screwdriver). Open the guard to its full extent. This creates the maximum clearance between the tube ports and guard to remove the tubing.
29.6 620RE and 620RE4 tube element loading Always isolate the pump from the mains power supply before opening the guard or performing any positioning, removal or maintenance. 620RE element pumpheads are factory set to accept Watson-Marlow LoadSure tube elements. Pumping performance will be adversely affected if LoadSure elements are not used. Open the guard using a suitable screwdriver or a 5mm Allen key. Disengage the rollers. Locate one of the “D”-shaped flanges into the lower port.
LoadSure industrial elements - which have black connectors - are connected to a tubing system using cam-lock (cam and groove) fittings. Push the female fitting over the element connector. Pull both cam levers closed until they engage. 29.7 620R continuous tube loading Always isolate the pump from the mains power supply before opening the guard or performing any positioning, removal or maintenance.
Close the guard and push it against the track until the latch engages. Ensure that continuous tubing is not loosely clamped at the pumphead ports. Ensure that when the pump is re-started all of the rollers have re-engaged. A roller which has not re-engaged will “click” continuously. No damage will occur if this happens but the roller should be re-engaged manually using the 5mm Allen key. See 26 Troubleshooting. 29.
Ensure the roller pin is correctly seated into the roller arm thrust washer. Replace the circlip. Rotor removal Remove the rotor cover by hand and the central locating bolt using a 5mm Allen key. Pull the rotor off the keyed shaft. Do not use tools to lever the rear face of the rotor away from the inner face of the track: it should come off by hand. Track removal Remove the rotor as described above. Disconnect the waste pipework (if attached).
Track re-location Ensure that the track is clean. Align the track so that the location holes are aligned with the threaded holes in the cased drive. Tighten the two track retaining screws using a suitable screwdriver. Re-connect the waste pipework (if required). Note: The track can be fitted in two positions: with ports to the right or with ports down.
29.10 620RE, 620RE4 and 620R CIP and SIP General Unlock the guard and disengage the rollers. Close the guard and squeeze against the track until the latch clicks. Observe a 1m safety area. CIP LoadSure tube elements and continuous tubing can be cleaned using CIP processes. Ensure that the tubing material is chemically compatible with the cleaning agent that is to be used. If cleaning agents are spilled over the pumphead, wash down immediately.
Ensure that the pumphead door is closed and locked before SIP cleaning commences. 29.
Number Spare Description 063.4211.000 620R MarkII pumphead 063.4231.000 620RE MarkII pumphead 063.4431.000 620RE4 MarkII pumphead 1 069.4101.
30 620RE, 620RE4 and 620R performance data Pumping conditions All performance figures in this operating instruction have been recorded against peak pipeline pressures. This pump is rated to 4 bar (58psi) peak pressure when fitted with a 620RE, 620RE4 or 620LG pumphead using high-pressure tubing. However, it will generate in excess of 4 bar (58psi) peak pressure if the pipeline is restricted. Where it is important that 4 bar (58psi) is not exceeded, pressure relief valves should be installed in the pipeline.
30.1 620RE, 620RE4 and 620R flow rates Metric (SI) 620 Sta-Pure, Chem-Sure, Neoprene, l/min 620R 620RE 620RE4 Speed rpm 6.4 mm 9.6 mm 12.7 mm 15.9 mm 12.0 mm 17.0 mm 12.0 mm 17.0 mm 0.1 0.001 0.003 0.004 0.01 0.004 0.01 0.003 0.01 265 3.2 6.6 11 16 11 18 9.0 13 620 Marprene TL, Bioprene TL, l/min 620RE (standard) 620R (standard) 620RE4 (standard) Speed rpm 6.4 mm 9.6 mm 12.7 mm 15.9 mm 12.0 mm 17.0 mm 12.0 mm 17.0 mm 0.1 0.001 0.003 0.004 0.01 0.004 0.01 0.
US (imperial) 620 Sta-Pure, Chem-Sure, Neoprene, USGPM 620R 620RE 620RE4 Speed rpm 6.4 mm 9.6 mm 12.7 mm 15.9 mm 12.0 mm 17.0 mm 12.0 mm 17.0 mm 0.1 0.0003 0.001 0.001 0.002 0.001 0.002 0.001 0.001 265 0.8 1.8 2.8 4.3 2.8 5.1 2.4 3.5 620 Marprene TL, Bioprene TL, USGPM 620RE (standard) 620R (standard) 620RE4 (standard) Speed rpm 6.4 mm 9.6 mm 12.7 mm 15.9 mm 12.0 mm 17.0 mm 12.0 mm 17.0 mm 0.1 0.0003 0.001 0.001 0.002 0.001 0.002 0.001 0.001 265 0.9 1.
31 Continuous tubing product codes (620R) mm inch # Marprene Bioprene Pumpsil silicone 6.4 1/4 26 902.0064.032 903.0064.032 913.0064.032 9.6 3/8 73 902.0096.032 903.0096.032 913.0096.032 12.7 1/2 82 902.0127.032 903.0127.032 913.0127.032 15.9 5/8 184 902.0159.032 903.0159.032 913.0159.032 mm inch # Sta-Pure Neoprene PVC 6.4 1/4 26 960.0064.032 920.0064.032 950.0064.032 9.6 3/8 73 960.0096.032 920.0096.032 950.0096.032 12.7 1/2 82 960.0127.032 920.0127.
32 LoadSure tube element product codes (620RE and 620RE4) 12mm Tri-clamp 3/4in 17mm Tri-clamp 3/4in 12mm Cam and Groove 3/4in 17mm Cam and Groove 3/4in Sta-Pure 960.0120.PFT 960.0170.PFT Chem-Sure 965.0120.SST 965.0170.SST Bioprene TM 903.P120.PFT 903.P170.PFT Bioprene TL 903.0120.PFT 903.0170.PFT Pumpsil silicone 913.0120.PFT 913.0170.PFT Marprene TM 902.P120.PPC 902.P170.PPC Marprene TL 902.0120.PPC 902.0170.PPC Neoprene 920.0120.PPC 920.0170.
33 620L and 620LG pumpheads The twin offset track design of the 620L utilises 4.0mm wall double-Y tube elements to overcome pulsation for accurate dosing and dispensing. The 620L accepts Silicone and Marprene tubing up to 16.0mm bore. Alternatively the 620L will run with two separate 4mm-wall tubes although some channel-to-channel variance and minimal pulsation may be experienced. For separate tube fitting or twin tube inlet to single tube outlet fitting tube clamping blocks must be used. See 33.
33.3 620L and 620LG pumping conditions Pressure and viscosity Always isolate the pump from the mains power supply before opening the guard or performing any positioning, removal or maintenance. All pressure values in this operating instruction, from which performance and life figures have been calculated, relate to peak pipeline pressures. Although rated to 4 bar peak pressure, the 620LG may generate in excess of 4 bar working pressure if pipeline restrictions are in place.
To remove the 620L pumphead To remove the pumphead you must first remove the track. The track is secured to the pumphead by cams positioned at its left and right. Where the cam shafts are visible at the front of the pumphead, they are milled square to accept a spanner. Use the 10mm or 3/8in AF spanner provided to rotate the right-hand cam shaft through 180 degrees counter-clockwise, and the left-hand camshaft through 180 degrees clockwise.
33.5 620L and 620LG Tube loading Double-Y elements for low-pulsation flow and dispensing applications See illustrations at 33.4 620L removal and installation. The track is secured to the pumphead by cams positioned at its left and right. Where the cam shafts are visible at the front of the pumphead, they are milled square to accept a spanner. Use a 10mm or 3/8in AF spanner to rotate the right-hand cam shaft through 180 degrees counter-clockwise, and the left-hand camshaft through 180 degrees clockwise.
ment over the 625L clamping peg. Stretch the tubes and screw the clamping block into place. Replace the track as described at 33.4 620L removal and installation. Two independent tubes for twin-channel pumping See illustrations at 33.4 620L removal and installation. The track is secured to the pumphead by cams positioned at its left and right. Where the cam shafts are visible at the front of the pumphead, they are milled square to accept a spanner.
33.8 620L and 620LG Pumphead spares Number Spare Description MRA3021A 620L pumphead MRA3022A 620LG pumphead 1 069.4001.
34 620L and 620LG performance data Sta-Pure and Marprene TM tubing are hard to compress when new. When using tubing made of these materials, the first five pumphead revolutions should be at a speed of 10rpm or greater. If the pump is run slower, the safety system built into pump drive’s software may cause it to stop and display an over-current error message. 34.1 620L and 620LG flow rates Note: Rates apply to Y elements and two channels of continuous tubing combined.
34.2 620L tubing codes Marprene Dispensing information 902.E080.K40 902.E120.K40 Y element Bore Litres/rev 8.0mm 0.01689 12.0mm 0.03029 902.E160.040 16.0mm 0.04251 902.0080.040 8.0mm 0.01689 12.0mm 0.03029 16.0mm 0.04251 902.0120.040 Continuous 902.0160.040 Bioprene Dispensing information Bore Litres/rev 8.0mm 0.01689 12.0mm 0.03029 903.E160.040 16.0mm 0.04251 903.0080.040 8.0mm 0.01689 12.0mm 0.03029 16.0mm 0.04251 903.E080.040 903.E120.040 903.0120.
34.3 620LG element codes Sta-Pure Dispensing information 960.E080.K40 960.E120.K40 Y element 960.E160.040 Bore Litres/rev 8.0mm 0.01979 12.0mm 0.03349 16.0mm 0.04689 Chem-Sure Dispensing information 965.E080.K40 965.E120.K40 Y element 965.E160.040 DuN, Du Accessory Bore Litres/rev 8.0mm 0.01979 12.0mm 0.03349 16.0mm 0.04689 35 620 series pumping accessories Description Part code Pump compatibility 520AF Footswitch with 25-pin D-connector 059.3002.
DuN, Du 36 Trademarks Watson-Marlow, Bioprene, Pumpsil and Marprene are trademarks of Watson-Marlow Limited. Tygon is a trademark of the Saint Gobain Performance Plastics Company. Fluorel is a trademark of 3M. Sta-Pure and Chem-Sure are trademarks of W.L.Gore and Associates. DuN, Du 37 Warning not to use pumps in patient-connected applications Warning: These products are not designed for use in, and should not be used for patient-connected applications. DuN, Du 38 Publication history m-620dun-du-gb-02.
DuN, Du 39 Decontamination certificate In compliance with the UK Health and Safety at Work Act and the Control of Substances Hazardous to Health Regulations, you are required to declare the substances which have been in contact with product(s) you return to Watson-Marlow or its subsidiaries or distributors. Failure to do so will cause delays. Please ensure that you fax us this form and receive an RGA (Returned Goods Authorisation) before you despatch the product(s).
