User Manual Single load cell platform scales Manual number PTI-15-10/02/09/A Table platform scales of WPT/F series Platform scales of WTC series Waterproof platform scales Vetek Weighing AB, Box 79, S-76040 Väddö, Sweden Phone +46 176 20 89 20 fax. +46 176 20 89 29 info@vetek.com www.vetek.
FEBRUARY 2008 -2-
TABLE OF CONTENTS 1. INTENDED USE .................................................................................................................... 5 2. PRECAUTIONS..................................................................................................................... 6 2.1. Maintenance................................................................................................................... 6 2.2. Power supply..........................................................................
15. WORK MODES ................................................................................................................. 40 15.1. Setting accessibility of operation modes ................................................................... 40 15.2. Selecting quantity of operation modes ...................................................................... 41 15.3. Counting pieces of the same mass ........................................................................... 42 15.4.
1. INTENDED USE Scales are designed for fast and precise measurements of weighed loads masses and direct commercial settlements. Tarring in full weighing range enables to determine net mass of weighed loads.
2. PRECAUTIONS 2.1. Maintenance A. Please, read carefully this user manual before and use the device according to its intended use. B. Dead batteries (accumulators) should be utilized according to the law; C. Devices that are to be withdrawn from usage should be sent back to the producer or in case of own utilization do it according to the law. In case of an elongated storage period in low temperatures, it is not allowed the full discharge of the accompanied batteries. 2.2.
3. WARRANTY CONDITIONS A. RADWAG is obliged to repair or change those elements that appears to be faulty because of production and construction reason, B. Defining defects of unclear origin and outlining methods of elimination can be settled only in participation of a user and the manufacturer representatives, C. RADWAG does not take any responsibility connected with destructions or losses derives from non-authorized or inappropriate (not adequate to manuals) production or service procedures, D.
WPT/F…/C/K series – main dimensions WPT/F…/C/R series – main dimensions 4.2.
WPT…H1series (pillar 7cm) –main dimensions WPT…H2 - WPT…H6 series – main dimensions -9-
4.3.
WTC…C1 series – main dimensions WTC…C2/K series – main dimensions WTC…C2/R series – main dimensions - 11 -
WTC…C2 series – main dimensions WTC…C3 series – main dimensions - 12 -
5. UNPACKING AND ASSEMBLY 5.1. Scales of WPT/F series Unpack and put the scale on a flat even stable surface far away from sources of heat. x maximally screw out the transport protection according to the drawing below: x Install the pillar, be careful about the cable linking the indicator with the load cell: 5.2.
For versions with an indicator on the pillar, install the pillar first: x Screw down the pillar handler to the platform: WTC…C1 series WTC…C2 and WTC…C3 series x Stretch delicately the cable so it did not touch the ground after mounting: WTC…C1 series WTC…C2 and WTC…C3 series - 14 -
x The surplus cable wind and place inside the pillar as show below: x Put the indicator with the hendler on the pillar and tighten up the handwheels: WTC…C1 series WTC…C2 and WTC…C3 series 5.3.
x Turn the pillar and mount it to the platform. The surplus cable place inside the pillar. x Pick up the pan and remove the transport protection. 6. GETTING STARTED x After unpacking and mounting the scale level it out. Use levelling legs and the level condition indicator installed in the basis of the scale. x Turn the device on using the for about 0.
7. KEYPAD 8. KEYS’ FUNCTIONS Switching on/off Function key (operation mode selection) Sending a weighing result to RS232 Zeroing Tarring Notice: + keys’ functions changes. The way of operation After pressing in this mode is described in details further in this manual.
9. INSCRIPTIONS ON THE DISPLAY No Text string Description 1. FIL Filter level 2. bAud Transmission baud rate 3. PCS Piece counting 4. HiLo +/- control according to a standard mass 5. rEPL Automatic printout 6. StAb The condition of printing data 7. Auto Autozero correction 8. t1 Power save – time to switch off while no operation 9. toP Latch of the max measurement 10. Add Totalizing 11. AnLS Weighing animals 12. tArE Memory of 9 tare values 13.
10. USER MENU 10.1. Submenus User’s menu is divided into 6 basic submenus. Each group has its own characteristic name preceded by the letter P and a number. P1 rEAd P 1.1 Fil P 1.2 Auto P 1.3 tArA P 1.4 Fnnd P2 Prnt P2.1 Pr_n P2.2 S_Lo P2.3 bAud P2.4 S_rS P3 Unit P3.1 StUn P4 Func P4.1 FFun P4.2 Funi P4.3 PcS P4.4 HiLo P4.5 PrcA P4.6 Prcb P4.7 AtAr P4.8 toP P4.9 Add P4.A AnLS P4.b tArE P5 othr P5.1 bL P5.2 bLbt P5.3 bEEP P5.4 t1 P5.5 CHr6 P6 CAL P6.1 St_u P6.
10.2. Browsing user menu Use scale’s keys to move inside the menu. 10.2.1. Keypad Entering main menu + + Inscribing tare value Increasing a digit value by „1” moving down in the menu Battery / accumulator state monitoring + Toggling between gross / net values + Selecting the parameter or changing the value of a selected parameter Entering the selected submenu or activating a parameter for changes Confirmation (enter) Leaving without changes or reaching a higher level of the menu 10.2.2.
11. WEIGHING Put a load you want to weigh on the weighing pan. When the pictogram appears it means that the result is stable and ready to read. In order to assure long-term operation and appropriate measurements of weighted loads following precautions should be taken into consideration: x Loads should be placed on the pan delicately and carefully in order to avoid mechanical shocks: x Loads should be placed centrally on the pan (errors caused by eccentric weighing are outlined by standard PN-EN 45501 ch.
11.1. Tarring In order to determine the net mass put the packaging on the pan. (Net pictogram will be displayed in the left After stabilising press upper corner and zero will be indicated). After placing a load on the weight pan net mass will be shown. Tarring is possible within the whole range of the scale. After unloading the pan the display shows the tarred value with minus sign. Notice: Tarring cannot be performer when a negative or zero value is being displayed.
x Using x x , Press Program returns to weighings mode. The inscribed tare value can be seen on the display with „–” sign, Tare can be inscribed anytime in weighings mode. x and set the tare value, Notice: 1. You cannot inscribe a new tare value when the tare value in memory is greater than zero. In the case of trying this the message will be displayed and short audible signal will be emitted. 2. Users can also enter up to 9 tare values to the scale memory (see 15.10 of his manual). 11.3.
11.5. Selection of basic weight unit This function is used to set weight unit the scale will start with. Procedure: x Enter the submenu and then: x press , until the expected unit appears on the display: Options: A. When the basic unit is [kg], users can toggle between: [kg, lb, N], for verified scales [lb] is not accessible, B.
x After you select the unit press , the scale returns to: x Return to weighing according to chapter - 10.2.2. Notice: After turning on the scale always sets the basic unit. 11.6. Temporarily selected unit This function is used to set weight unit the scale will use temporarily until the next power off or next selection. Procedure: x Press and then: x After you select the unit you want come back to weighing procedure.
Options: A. When [kg] is a basic unit, users can select following units: [kg, lb, N], [lb] is not accessible for verified scales. B. When [g] is a basic unit, users can select following units: [g, ct, lb], [lb] is not accessible for verified scales. 12. MAIN PARAMETERS Users can adjust the scale to external ambient conditions (filtering level) or particular needs (autozero operation, tare memory). This parameters are placed in submenu. 12.1.
Notice: Filtering level influences the time of stabilization. The higher the filtering level is the longer stabilization time is needed. Return to weighing: See - 10.2.2. 12.2. Median filter This filter eliminates short changes (impulses) of measure signal (e.g. shocks). Procedure: x Enter the submenu and then: Fnnd Fnnd no - filter disabled YES - filter enabled Return to weighing: See - 10.2.2.
12.3. Autozero function The autozero function has been implemented in order to assure precise indications. This function controls and corrects „0” indication. While the function is active it compares the results continuously with constant frequency. If two sequentional results differ less than the declared value of autozero range, so the scale will be automatically zeroed and will be displayed. and the pictograms When AUTOZERO is disabled zero is not corrected automatically.
12.4. Tare function This parameters enables users to configure a tare function. Procedure: x Enter the submenu and then: tArA AtAr - automatic tare function on and is stored in balance memory after unplugging it from mains (Description of function operating point 15.
13. RS 232 PARAMETERS External devices connected to RS 232C have to be supplied from the same mains and common electric shock protection. It prevents from appearing a potential difference between zero leads of the two devices. This notice does not apply to the devices that do not use zero leads. Transmission parameters: x x x x Baud rate - 2400 – 38400 bit / s Data bits - 7,8 Stop bits - 1,2 Parity control - no, even, odd.
Pr_n noStAb - Pr_n Pr_n Pr_n Pr_n StAb rEPL CntA Cntb - immediate printout (not accessible in verified scales) sending stable results automatic operation continuous transmission in basic unit continuous transmission in present unit Return to weighing: see 10.2.2. 13.2. Minimal mass threshold This function is necessary while working with automatic tare or automatic operation or weighing animals.
Return to weighing: see 10.2.2. 13.3. Baud rate Procedure: x Enter the submenu
Return to weighing: see 10.2.2. 13.4. Serial transmission parameters Procedure: x Enter the submenu
14. OTHER PARAMETERS The user can set parameters which influence the scale operation. They are gathered in the submenu e.g. backlight and beep signal. Enter this submenu according to chapter 11.2. 14.1. Backlight function Program recognises the way the scale is supplied (mains, battery) and automatically selects the way of operating on the backlight: bl blbt – for mains, – for batteries or rechargeable battery pack. 14.1.1.
Return to weighing: See 10.2.2. Notice: When bl=Auto, and the indication has not changed for 10s, the backlight is automatically switched off. The backlight is switched on again automatically after the result changes. 14.1.2. Backlight for supplying from batteries The user can change the intensity of backlight from 0% to 100%. The lower the intensity is the longer the scale operates without recharging or exchanging batteries. When the intensity is set this function works as AUTO (described above).
14.2. “Beep” signal – after pressing a key Procedure: x Enter the submenu and then: bEEP bEEP no - switched off YES - switched on Return to weighing: See 10.2.2. 14.3. Automatic switch-off This function is essential to save the battery power. The scale is switched off automatically when (function t1 = YES) no weighing appears in 5 minutes. (no changes on the display). In case when this function disrupts the operation (e.g.
* automatic enabling/disabling according to the source of power. Procedure: x Enter the submenu and then: Returnto weighing: See 10.2.2. 14.4. Battery voltage level check While supplying from batteries too low level of voltage is measured by software the pictogram is displayed. It means that charging or exchanging batteries is required. 14.4.1. Checking the batteries This function is to check the level of battery supply.
Procedure: After displaying the level of batteries (in per cents) the program returns to weighing. 14.4.2. Battery discharge pictogram The symbol (bat low) switches on when the voltage level drops to 18% of the accepted level of voltage. It means that charging or exchanging batteries is required.
x x Message appears on the display (for indicators in plastic casings) or (for indicators in metal housings). In case of damaging accumulators or lack of it the pictogram blinks quickly (period about 0.5 sec). Notice: Indicators in plastic casings are equipped with the set of rechargeable batteries NiMH R6 (AA) and power adapter. Procedure: x Enter the submenu and then: CHr6 YES CHr6 no - enabled - disabled Return to weighing: See 10.2.2. 14.4.4.
Procedure: 1. 2. 3. 4. 5. Supply the indicator from mains. Charge batteries for 12 hours (time of charging 2200mAh batteries). After 12 hours unplug from mains. Use the device up to the moment of self powering down. Repeat the process of charging starting from point 1. Notice: They reach their optima capacity after three cycles of full charging and discharging. 15. WORK MODES 15.1.
no YES – mode is disabled – mode is enabled Return to weighing: See 10.2.2. 15.2. Selecting quantity of operation modes This function enables user to set if ,after pressing key, all operating modes will be accessible (ALL) or only one from the list chosen and used by operator. Procedure: x Enter the submenu and then: After choosing setting press key. The program will return to displaying name of submenu . Return to weighing: See 10.2.2.
15.3. Counting pieces of the same mass Standard solution is equipped with option of counting small pieces of the same mass. Counting pieces does not operate with other scale functions. It is possible to execute a tare function in this operating mode in order to tare a container value. Procedure: x Enter to function: x You will see a blinking value of sample quantity.
x Using where: and enter the required sample quantity, - selection of digit position, - setting the digit, , x Confirm the value by pressing x You will see on the display and then: x If weighing is performed in a container put the container on the pan first and then tare it. Then put the declared quantity of pieces on the pan and confirm it when stable (signalled by ): x The program will automatically calculate the mass of a single piece and go on to the Piece Counting mode (pcs).
Return to weighing: x Press the key twice. 15.4.
x The inscribed value confirm by pressing automatically go to the main window. , the program will x During setting threshold values following cases take place: Notice: If a user erroneously enters a value of the lower threshold higher than the upper one, the scale will indicate an error message and will return to weighing. Return to weighing: x Press the key twice. 15.5.
15.5.1. Standard mass determined by its weighing Procedure: x Enter to function: x You will see on the display and then: x place an load on the pan which mass will be accepted as standard to confirm this operating mode x press x after few seconds the indication 100,00% will be displayed x From this moment display will not indicate mass of weighed load but deviation of load mass placed on the pan referring to the mass of standard (in %). Return to weighing: x Press the key twice.
15.5.2. Mass of standard inscribed to scale memory Procedure: x Enter to function: x Program wagowy przejdzie do wy!wietlania okna: x Using where: and set standard mass, - digit selection, - digit setting. , x Confirm the entered value by pressing x You will see the indication equal to 0,000%, x From this moment display will not indicate the mass of weighed load but deviation of the load mass placed on the pan referring mass of standard (in %). Return to weighing: x Press the key twice.
15.6. Automatic tare This function is useful for fast net mass determination of weighed load in case when tare value of is different for each load.
15.7. Measurement max force on the pan – latch Procedure: x Enter to function: x Confirmation of choice of function is indication of the Max pictogram: x Apply a force to the weighing pan. x The display of scale will latch the maximum value of the force x Remove loads from the pan x Before the next measurement press the key. Return to weighing: x Press the key twice. 15.8. Totalizing Scale software is equipped in a totalizing function of single weighings.
15.8.1. Enabling the work mode Procedure: x Enter to function: x A letter „P” in the left side of the display is a confirmation that function have been selected: 15.8.2. Totalizing procedure x Enter function according to ch. 16.8.1, x Put the first load on the pan. If the weighing procedure is performed in a container put the container on the pan first and tare it.
x Take off the load from the pan, indication returns to ZERO and the letter „P” in the left part of the display appears, x Put the next load on the pan, , the sum of first and second weighing x After stabilizing press will appear on the display, the „"” pictogram in the upper right corner will be displayed and the second weighing result will be printed on the printer connected to the indicator: to complete the procedure (with the loaded or unloaded x Press pan), a sum of all weighings will be printed: (1)
- In order to continue the procedure press , the indication returns to ZERO and the letter „P” appears in the left part of the display. The scale is ready for weighing; - In order to terminate the previous totalizing procedure press , or . You will see the letter „P” in the left part of key, the display. The scale is ready for weighing. 15.8.4.
15.9.
x Load an animal to the platform, x After exceeding the -LO- value (see 13.2), program starts the weighings process.
x The program goes to displaying the first value from the selection of tare values (press to chose different values): x After selecting the right position press field: and you will see an editing x Enter the selected tare value to the scale memory x The program returns to the following window: - 55 - ,
Return to weighing: x Press . 15.10.2. Selecting a tare value from the memory x Enter function according to the ch. 16.10.1 of the manual, x The program goes to displaying the first value from the selection of tare values (press to chose different values): x To use an entered tare value press , you will see the tare value on the display preceded by the „-„ sign and the Net pictogram: Caution: A tare value from the memory is not remembered after powering off and on the scale.
16. USER CALIBRATION Only for non-verified scales Confirmation of high accuracy of weighing requires periodical correcting of calibration factors in the scale memory – this is adjustment of the scale. Calibration should be performed when we start weighing or dynamic change of temperature occurs. Before starting calibration remove loads from the pan. 16.1. Calibration Procedure: x Enter the submenu
x Put a weight of the displayed mass value on the pan and press . The calibration process will start which is signalled by the message: x After completion of the process of calibration the following screen will appear x Take off the weight , then the following sequence of screens will appear x Calibration process can be terminated anytime by pressing which is signalled by the following message on the display: x Return to weighing with saving changes that have been made.
16.2. Start mass adjustment If the scale does not require the full calibration process sit is possible to adjust only a new start mass. Procedure: x Enter the submenu
x Return to weighing performing the procedure of saving parameters. Caution: If the start mass adjustment lasts longer than 15 the message will be displayed and short audible signal will be emitted. Press to perform calibration again with more stable ambient conditions! 17. COOPERATION WITH PRINTER key is pressed a current mass value together with Each time the mass units is sent to RS 232 interface. Depending on setting of STAB parameter it can be printed out with temporary or stable value.
Cable diagrams: Scale – Kafka printer cable diagram for plastic casing Scale – Kafka printer cable diagram for steel housing 18. COOPERATION WITH COMPUTER Sending weighing results to the computer can be done: - manually - in continuous way - - automatically - on the request from the computer - key, after pressing after function activating or sending an appropriate command, After stabilizing the indication - After sending a control command These scales can cooperate with „EDYTOR WAG” program.
Cable diagrams: Scale – computer cable diagram for plastic casing Scale – computer cable diagram for metal housing 19. COMMUNICATION PROTOCOL 19.1. General information A. A character protocol scale-terminal has been designed for communication between RADWAG scales and external devices via RS-232 interface. B. It consists of commands sent from an external device to the scale and a responses from a scale. C. Responses are sent every time after receiving a command (reaction for any command). D.
19.2.
XX _ - command name - substitutes spaces 19.4. Command’s description 19.4.1. Zeroing Syntax Z CR LF Possible answers: Z_A CR LF Z_D CR LF - command accepted and in progress - command completed Z_A CR LF Z_^ CR LF - command accepted and in progress - command comprehended but zero range overflow appeared Z_A CR LF Z_E CR LF - command accepted and in progress - time limit for stable result exceeded Z_I CR LF - command comprehended but cannot be executed 19.4.2.
S_A CR LF S_E CR LF - command accepted and in progress - time limit for stable result exceeded S_I CR LF - command comprehended but cannot be executed S_A CR LF MASS FRAME - command accepted and in progress - mass value in basic unit is returned Frame format: 1 2-3 4 5 6 7-15 16 S space stability space sign mass space 17 18 19 unit 20 21 CR LF Example: S CR LF – computer command S _ A CR LF - command accepted and in progress S _ _ _ _ - _ _ _ _ _ _ 8 .
19.4.5.
Example: S U I CR LF – computer command S U I ? _ - _ _ _ 5 8 . 2 3 7 _ k g _ CR LF - command executed and mass returned 19.4.7. Switch on continuous transmission in basic unit Syntax: C1 CR LF Possible answers: C1_I CR LF - command comprehended but cannot be executed C1_A CR LF MASS FRAME - command comprehended and in progress - mass value in basic unit is returned Frame format: 1 2 3 4 5 6 7-15 16 S I space stability space sign mass space 17 18 unit 19.4.8.
Frame format: 1 2 3 4 5 6 7-15 16 S U I stability space sign mass space 17 18 19 unit 20 21 CR LF 19.4.10. Switch off continuous transmission in current unit Syntax: CU0 CR LF Possible answers: CU0_I CR LF - command comprehended but cannot be executed CU0_A CR LF - command comprehended and executed 19.4.11.
Format frame: 1 2 3 4 -12 13 stability space sign mass space Stability character sign mass unit command 14 15 16 unit 17 18 CR LF [space] if stable [?] if not stable [^] if an indication over the range [v] if fan indication below the range [space] for positive values or [-] for negative values 9 characters justified to the right 3 characters justified to the left 3 characters justified to the left Example 1: _ _ _ _ _ _ 1 8 3 2 .
1 2 3 4 5 6 7-15 16 S I space stability space sign mass space Stability character sign mass unit command 17 18 19 Unit 20 21 CR LF [space] if stable [?] if not stable [^] if an indication over the range [v] if fan indication below the range [space] for positive values or [-] for negative values 9 characters justified to the right 3 characters justified to the left 3 characters justified to the left The frame format sent by the indicator in case of setting
20.
21. TECHNICAL PARAMETERS 21.1.
21.2.
21.3.
WPT 60H5 WPT 150H5 WPT 300H5 WPT 150H6 WPT 300H6 WPT 60H5/K WPT 150H5/K WPT 300H5/K WPT 150H6/K WPT 300H6/K Max capacity 60kg 150kg 300kg 150kg 300kg Min capacity 20g 50g 100g 50g 100g -60kg -150kg -300kg -150kg -300kg Scale type: Tare range Platform size 600 × 600mm Work temperature -10°C to +40°C Ingress protection rating IP 67 - platform, IP 66/67 - indicator 230V AC, 50Hz / 11V AC and internal gell cell SLA 6V accumulator Power supply Supplied from batteries 800 × 800m
23.
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