Gemini 88 User’s Manual Publication 5605-001-REV-D
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KDS Gemini 88 Contents Specifications..........................................................................................................................2 Warranty and Repair Information ........................................................................................3 General Safety Summary......................................................................................................4 Features ..............................................................................................
KDS Gemini 88 Specifications Type Microprocessor dual drive, single syringe, infuse/withdraw Accuracy ±0.35% Reproducibility ±0.1% Syringe: Type Plastic, glass or stainless steel Size Minimum 0.5 µl Size Maximum 140 ml Flow Rate: Minimum 0.0004 µl/hr Maximum 106.6 ml/min Non Volatile Memory Storage of all settings RS-232 RJ11-4 conductor TTL 9-pin connector Average Linear Force 57 lbs Drive Motor 2 motors, each 0.
KDS Gemini 88 General Information - Warranty and Repairs Serial Number All inquires concerning our product should refer to the serial number of the unit. Serial numbers are located on the rear of the chassis. Calibration All syringe pumps are designed and manufactured to meet their performance specifications at all rated voltages and frequencies. A calibration certificate is available upon request. Contact customer service for details and pricing.
KDS Gemini 88 General Safety Summary Please read the following safety precautions to ensure proper use of your syringe pump. To avoid potential hazards and product damage, use this product only as instructed in this manual. TO PREVENT HAZARD OR INJURY: Use Proper Line Cord Use only the specified line cord for this product and make sure line cord is certified for country of use. Ground the Product This product is grounded through the grounding conductor of the power cord.
KDS Gemini 88 Features Pressure and Speed Pump 33 can deliver up to 106.60 ml/min with a 140 ml syringe, and is capable of pressures of up to 99.5 PSI with a 20 ml syringe. Independent Syringe Diameters and Rates In the Proportional Mode, separate syringe types and rates may be set. Variable Syringes Enter the inside diameter of the syringes being used. Modes of Operation Auto Stop Both syringes will operate at same rate and stop when either syringe reaches a limit stop.
KDS Gemini 88 Initial Setup 1) 2) Read the manual. Locate the voltage selector switch on the rear panel of the pump and set it to the voltage being used. If other than 115VAC, 60 Hz is being used, the plug must be cut off and an appropriate plug installed, observing the polarity of the international line cord used: Brown – high Blue – neutral Green – ground 3) Turn on main power switch located directly above the line cord on the rear panel.
KDS Gemini 88 Loading Syringes (1)1 (2) 2 3 4 Figure 1. Syringe Loading 1) 2) 3) 4) 5) 6) 7) The syringe holder and pusher block are fitted with movable retaining brackets which hold the syringe barrel and plunger when refilling. When loading the syringe into the pump, it is necessary to adjust these brackets. The pusher block is fitted with a mechanism to release the drive nut from the leadscrew. This allows the block to move freely so the syringe to be loaded.
KDS Gemini 88 User Interface: DESCRIPTION OF KEYS Auto Stop Proportional ml/min Syringe 1 µl/min Continuous Remote ml/hr Syringe 2 µl/hr Run mm Figure 2. User Interface The user interface consists of a display area and a keypad. The display consists of a 5 digit LED display and 14 LED indicators. The display will be showing either the default display or an informational message. The two syringes are referred to as Syringe 1 and Syringe 2.
KDS Gemini 88 User Interface: DESCRIPTION OF KEYS (CONTINUED) Proportional Only 8 Figure 3. Keypad Interface The keypad consists of 21 keys used for entering control information and data into the pump. These keys are grouped into 3 sections (see Figure 3 above): Set keys, toggle keys, and data entry keys. Set Keys Set Rate 1 Rate 2 Diameter 1 Diameter 2 “1” Allows modification of a data item in this group of keys. To modify a data item, press the relevant key after pressing the SET key.
KDS Gemini 88 Entering Data Set Keys The keys in this group are used to modify or review settings of the pumps control data. To review the current setting of a control data item, simply hold down the relevant key and the data setting will appear in the display. To modify a data setting, first press then release the green SET key. The display will then read “SET”. Press the key in the SET key group of the data item that is to be modified. The display will show the current setting.
KDS Gemini 88 Operation DIAMETERS The pump must be stopped when entering a diameter. Diameter 1 is the diameter of both syringes, except in Proportional mode. In Proportional mode, enter the diameter of each syringe separately; Diameter 1 for syringe 1 and Diameter 2 for syringe 2. When entering a diameter, the 2 direction LEDs corresponding to the syringe and the “mm” LED will blink. Enter the inside diameter of the syringe in millimeters. After a new diameter is entered the corresponding rate is set to 0.
KDS Gemini 88 Operation (continued) RUNNING THE PUMP Pressing RUN/STOP key starts pump and illuminates Run LED on display. Pressing RUN/STOP key again stops pump. While running, a new rate can be set. The new rate, for relevant syringe(s), takes effect when ENTER key is pressed. Pump will operate according to selected run mode. Pump can also be started and stopped via external controls.
KDS Gemini 88 Valve Control Box Setting up Valve Set up consists of: 1) Pump to Valve Electrical Connections: The cable fitted with a male 9 pin D-sub connector must be connected to the female D-sub connector on the rear of the Model 33 Syringe Pump. The Valve Power can now be swiched on with the illuminated power On/Off switch on the front valve housing. 2) Valve tubing to syringe hook up: The valve(s) are de-energized when the front mechanism (#1) is running in the INFUSE direction.
KDS Gemini 88 Pinch Valve Connectors Figure 4. Pinch Valve Connections Figure 5. Continuous Delivery. Pump in Reciprocal Mode. Figure 6. Dual Delivery followed by Refill. Pump in Parallel Mode.
KDS Gemini 88 Stainless Steel Valve Connectors Figure 7. Continuous Delivery. Pump in Reciprocal Mode. Figure 8. Dual Delivery followed by Refill. Pump in Parallel Mode. Swage lock fittings should be finger tight plus 1-1/4 turns. Tubing is 304, stainless 1/4" OD, wall thickness 0.
KDS Gemini 88 External Control and Interfaces Figure 9. External Interface External devices that can be attached to the Pump 33 include external valves, pump chain, and TTL devices. See the appropriate appendixes for specification details on attaching devices. ATTACHING A PUMP CHAIN On the back of the pump are two telephone jack type connectors. These are the RS-232 ports. Looking at the back of the pump, the connector on the right is port 1 and the left is port 2.
KDS Gemini 88 External Control and Interfaces (continued) TTL DEVICES The pump does not need to be configured to attach a TTL device. To attach a TTL device, simply plug the appropriate TTL connector into the 9 pin connector on the rear of the pump. See Appendix E for wiring specifications. Foot Switch Input Used to start and stop the pump. Pressing the foot switch performs the same function as pressing the RUN/STOP key on the keypad.
KDS Gemini 88 Pump Chain Commands PUMP CHAIN COMMANDS AND RESPONSES The Pump Chain RS-232 interface is used to enhance the control applications of the Pump 33. This interface allows all control information to be entered into the pump from an external source such as a computer. In addition, this interface allows up to 100 Pump 33’s or, in certain cases, other RS-232 devices to be controlled from a single RS-232 communication port on a computer.
KDS Gemini 88 PUMP CHAIN COMMANDS AND RESPONSES (continued) A prompt is a string of ASCII characters sent by a pump, indicating the pump’s address and its present state: , 1 or 2 digit address, prompt character Prompt Characters Meaning : Pump stopped > Syringe 1 infusing < Syringe 1 refilling * Pump stalled PUMP COMMANDS AND RESPONSES RUN Starts pumping according to the present setting of the pump. If pump already pumping, a “Not Applicable” error is returned. STP Stops pump if it was running.
KDS Gemini 88 PUMP CHAIN COMMANDS AND RESPONSES (continued) DIA [{A|B}] [] Request to set or query syringe diameter settings. Set syringe 1 diameter: DIA diameter DIA A diameter Set syringe 2 diameter (only valid in proportional mode): DIA B diameter Corresponding syringe’s rate will be zeroed. Diameter is of the format: Units are millimeters. ffffff Diameter 2 is only accepted when mode is proportional. If diameter is accepted and valid, diameter will become the new diameter.
KDS Gemini 88 PUMP CHAIN COMMANDS AND RESPONSES (continued) DIR [{INF|REF|REV}] Request to set or query pumping direction of syringe 1. SET: Command Meaning DIR INF Sets syringe 1 pumping direction to infusion DIR REF Sets syringe 1 pumping direction to refill DIR REV Reverses pumping direction of syringe 1 Direction of syringe 2 is set appropriately. Query pumping direction of syringe 1: DIR Response will be one of: INFUSE REFILL PAR [{ON|OFF}] Request to set or query Parallel or Reciprocal setting.
KDS Gemini 88 PUMP CHAIN COMMANDS AND RESPONSES (continued) OUT = {ON|OFF} Request to set the TTL logic level at the specified pin “d” on the external 9 pin D-SUB connector. ON – Set pin to a logic high OFF – Set pin to a logic low Valid pin numbers for output are: 4 and 5 If the pin specified is invalid, a “Not Applicable” error is returned. SAV Request to save pump settings in the pumps non-volatile memory (NOVRAM).
KDS Gemini 88 Appendix A: Syringe Diameters in mm (1) KDS Stainless Steel Size 8 cc 20 50 100 200 Diameter 9.525 mm 19.130 28.600 34.900 44.755 (2) Becton Dickinson Plastic ‘Plasti-pak’ Size 1 cc 3 5 10 20 30 50/60 Diameter 4.78 mm 8.66 12.06 14.50 19.13 21.70 26.70 (5) Terumo Size 3 cc 5 10 20 30 60 Diameter 8.95 mm 13.00 15.80 20.15 23.10 29.10 (6) Sherwood–Monoject Plastic Size 1 cc 3 6 12 20 35 60 140 Diameter 4.65 mm 8.94 12.70 15.90 20.40 23.80 26.60 38.40 (3) Air–Tite ‘All Plastic’ Size 2.
KDS Gemini 88 Appendix B: Nominal Min/Max Flow Rates Minimum flow rates are taken from the smallest inside diameters and maximum flow rates are taken from the largest inside diameters of the syringes supplied by the eleven most widely used syringe manufacturers. Nominal Minimum/Maximum Flow Rates for Various Syringes (Actual Limits will vary depending on manufacturer) Syringe µl/hr Size Min. 0.5 µl 1 µl 2 µl 5 µl 10 µl 25 µl 50 µl 100 µl 250 µl 500 µl 1000 µl 1 ml 2 ml 2.
KDS Gemini 88 Appendix C: Command Information PUMP CHAIN COMMAND SUMMARY All spaces in command are ignored. Maximum 5 digits per integer, or float data.
KDS Gemini 88 Appendix D: RS-232 Specifications PUMP CHAIN Pump Port 1: Computer control side Pump Port 2: Connection for remainder of pump chain Baud Rate: 300, 1200, 2400 or 9600 Word Size: 8 Parity: none Stop Bits: 2 Figure 9. RS-232 Specifications Appendix E: TTL Connector Specs TTL Connections are via a 9 pin D-sub type connector. All inputs are internally pulled up to a logic high. All user definable pins are controlled via the IN and OUT pump chain commands. See Pump Chain Commands.
KDS Gemini 88 Appendix F: Pump to PC Connection 4/ “Pump” 22/2000 4400 Front View 6 RJ12 - 6 x 6 RJ11/RJ12 5 3 27
KDS Gemini 88 Appendix G: Maintenance Pump 33 requires no special maintenance other than keeping it clean by avoiding accidental spills of pumped material. The two guide rods and the lead screw should be sparingly lubricated periodically with the Magnalube-G R grease provided with the pump. This PTFE R based grease is available either from KD Scientific or Carleton-Stuart Corp. 13-02 44th Ave., Long Island City, NY 11101. Solvents of any type should never be used to clean the pump.
KDS Gemini 88 Appendix H: Troubleshooting RS-232 DIFFICULTIES Verify that the baud rates and data framing parameters on all devices are the same. With a pump chain, a “Communication timeout” error on a computer is usually caused by the computer errantly handshaking on the RTS, CS and/or DSR lines. Verify pins 4, 5 and 6, on the 25 pin connector, are jumpered on the computer side of the cable. DISPLAY MESSAGES: All digits flashing Pump has not received any commands since being powered on.
KDS Gemini 88 Appendix J: Custom Applications The KD Scientific 33 Syringe Pump lends itself to a multitude of OEM industrial applications, for all types of custom pumping or pilot plant applications. Please contact the KD Scientific Technical Support Department if we can be of help.
Declaration of Conformity Manufacturer: KD Scientific, Inc. 84 October Hill Rd. Holliston, MA 01746-1388 U.S.A.
