Link to Elchrom GEPS Power Unit User Manual …. pdf
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1. USER S MANUAL ELECTROPHORESIS POWER SUPPLIES GEPS 200 2000 200 Volts 2Amps 200 Volts 2000 mA 250 Watts Elchrom Scientific GEPS 200 2000 Electrophoresis Power Supply ac AC C aC AC DANGER HIGH VOLTAGE Yn Pie WARNING THE POWER SUPPLIES ARE CAPABLE OF DELIVERING POTENTIALLY LETHAL VOLTAGE AND IS TO BE OPERATED ONLY BY QUALIFIED TECHNICALLY TRAINED PERSONNEL PLEASE READ THE ENTIRE OPERATOR S MANUAL THOROUGHLY BEFORE OPERATING THIS UNIT TAKE CARE AS THE MODE OF OPERATION OF THIS UNIT IS CONTINUOUS PLEASE RETAIN ALL PACKAGING MATERIALS UNTIL THE WARRANTY PERIOD HAS EXPIRED Description Microprocessor controlled switching Power Supplies These power supplies are CE marked and complies with the following requirements EMC directive 89 336 CEE It is also certified and manufactured according to the IEC 1010 1 standard and test regulation They are equipped with an automatic restart system in case of mains failure When the power returns an audible alarm sounds for 10 seconds and the power automatically restarts with the previous set values If during the power failure the electrophoresis unit is disconnected from the power supply the alarm still sounds when the mains supply returns Because no load is connected the power supply will immediately shut down and set the output to zero a Direct reading of programmed set values and actual values before and2. current or time settings As soon as one of these switches is activated the output Leds will display output set values rather than actual output values When they are released the output LED will display output set values for 3 seconds and then will display actual output All zeros since output has not yet be started Maximum output values are as follow GEPS 200 2000 for 200 Volts maximum current 1500 mA 300 Watts for 1998 mA maximum voltage 150 Volts 300 Watts FRONT PANEL DIAGRAM 11 10 N o2 A CA nN oo l gt 18 12 3 4 15 16 17 9 19 N DESCRIPTION FONCTION 1 Main Power switch Turns on unit 2 Voltage output Led Display actual or set output in Volts 3 Current output Led Display actual or set output in mA 4 Time in minutes Display elapsed or set time in minutes 5 STOP switch Terminates output 6 START switch Begins output 7 STOP led Indicates STOP mode 8 START led Indicates START mode 9 FAULT led Indicates ground leakage no load or automatic restart situation 10 Volt mode Led Indicates constant voltage mode 11 Milliamps mode Led Indicates constant current mode 12 Timer mode Led Indicates timer mode ON OFF 13 Voltage increase decrease Increases decreases voltage set point 14 Current increase decrease Increases decreases current set point 15 Time increase decrease Increases decreases time set mode 16 ON OFF timer switch Put timer ON OFF mode 17 CLEAR switch Cancel the
3. during the cycle m Volt mA and Timer adjustable during a cycle a Timer for automatic shutdown of output a Stabilisation and automatic crossover between the parameters according to the set limitation values and when output limits are reached 2 Red LED indicate the constant mode 2 Operating modes constant voltage constant current m Settings by tactile switches on moisture resistant membrane panel a Battery backed memory feature save last output set values in the event of a power failure or when the run is terminated and the unit is turned off a 3 Red LED Displays for set and output Volt Current and time values 3 recessed safety output jacks allow simultaneous operation of 3 electrophoresis units Fault detection and 500pA current leakage detection or no load automatically shuts down output and indicates the fault by yellow LED blinking Safety precautions THE POWER SUPPLIES ARE CAPABLE OF DELIVERING POTENTIALLY LETHAL VOLTAGE AND IS TO BE OPERATED ONLY BY QUALIFIED TECHNICALLY TRAINED PERSONNEL PLEASE READ THE ENTIRE OPERATOR S MANUAL THOROUGHLY BEFORE OPERATING THIS UNIT TAKE CARE AS THE MODE OF OPERATION OF THE UNIT IS CONTINUOUS If the power supply is used in a manner not specified by ELCHROM then the protection systems of the equipment may be impaired For additional information please call the ELCHROM or your distributor Technical Resources Department Never attempt to remove t
4. elapsed time of a previous running 18 Output Jacks Red positive Black negative 19 Reading switch Display output set values Initiating Output without timer mode 1 If the green LED located on the left of the TIMER is alighted depress the ON OFF switch of the TIMER on OFF position the green LED located on the left of the display must be off 2 Depress the START switch to initiate output The START LED green will illuminate and the output Leds will display the actual values simultaneously Depending on the output set values one of the two modes Leds VOLTS MILLIAMPS will illuminate indicating the parameter controlling output Slight increases or decreases in output readings for those parameters not limiting will occur as the experiment progresses These changes accurately represent changes in the resistive load electrophoresis unit due to changes in temperature buffer capacity etc This is to be expected 3 To view the output set values during the run depress the READING switch The Leds will display the output set values as long as READING switch is depressed Once the READING switch is released the Leds will display the output set values for three seconds and then switch back to displaying the actual output values 4 It is possible to change the values during the run without depressing the STOP Switch To change the output set values during the run depress the increase or decrease tactile switch until the app
5. emove the outer case of the unit and attempt any repairs Contact ELCHROM if the need for servicing the unit should arise WARRANTY ELCHROM warrants apparatus of its manufacture against defects in materials and workmanship under normal service for three years from the date of receipt by the purchaser This warranty excluded damages resulting from shipping misuse carelessness or neglect ELCHROM liability under the warranty is limited to the repair of such defects or the replacement of the product at its option and is subject to receipt of reasonable proof by the customer that the defect is is embraced within the terms of the warranty All claims mate under this warranty must be presented to ELCHROM within 3 years following the date of delivery of the product to the customer This warranty is in lieu of any other warranties or guarantees expressed or implied arising by law or otherwise ELCHROM makes no other warranty expressed or implied including warranties of merchantability of fitness for a particular purpose Under no circumstances shall ELCHROM be liable for damages either consequential compensatory incidental or special sounding in negligence strict liability breach of warranty or any other theory arising out of the use of the product listed herein ELCHROM reserves the right to make improvements in design construction and appearance without notice Declaration of conformity and CE mark The information o
6. h a cloth moistened with water or with tissues impregnated with 7096 Iso propyl alcohol No other cleaning solutions should be used MAINTENANCE There are no internal operator serviceable parts in this Power supply If the power should fail the unit must be returned to the authorised Service centre See troubleshooting guide SHIPMENT When shipment or transport of the power supply is required use the packaging supplied with the unit Store the unit in the packaging and in a dry area OPERATION The power supply automatically RESTART when the power is operating again after a power failure or repetitive micro failures during a cycle In this situation the elapsed time until the failure is saved and memorised When the mains is operating again after the failure an audible alarm rings and the STOP LED blinks for 10 seconds Then the power supply RESTART automatically with respect to the set values Unit power up 1 Connect the AC line cord to a grounded 3 prong wall outlet 2 Connect the power supply to an electrophoresis device using the power cords supplied 3 Press the main POWER switch to turn the power supply on The STOP LED red will illuminate and the output Leds will display zeros Adjusting Output Set Values When the main power switch is turned on default output values are displayed To change the output settings use the Volt mA or minutes dedicated tactile switches to increase or decrease the voltage
7. he outer casing or make any repairs to the unit Contact us immediately if the need for repair or servicing should arise The unit must be earthed Use only the line cord supplied with the unit for safe operation Check the mains plug of the line cord to make sure it is equipped with a protection fuse not exceeding 3 A The use of a line cord other than this or one supplied by ELCHROM may result in user hazard Connect the line cord directly into a properly rated 210 250 VAC 50 60 Hz or 105 125VAC 50 60Hz three pins wall outlet For connection between the power supply and the electrophoresis equipment use only the safety output power cords equipped with Black and Red recessed plugs as supplied with the unit Check the power cords and the black and red recessed safety jacks periodically to make sure that they are in good condition Do not use cords which are cracked nicked or in otherwise poor condition Always make all connections between the power supply and the electrophoresis equipment prior to start up of the output Never place any objects other than high voltage connectors rated to 1000V into the output jacks Site the unit such that the rear panel has at least 20 cm of clearance to provide for adequate unit ventilation The power supply must only be connected to electrophoresis equipment manufactured with built in safety protected male plugs It is also recommended to use electrophoresis equipment that can only be connec
8. l display the output set values during three seconds and then switch back to displaying the actual output values 7 To establish the limiting constant mode for the particular experiment set the controlling parameter to the output desired and increase the other output set value until the appropriate MODE LED VOLT MILLIAMPs illuminates If the non controlling output set values is reached during the course of the run the power supply will automatically crossover to the new mode and control output relative to that mode The appropriate MODE LED will illuminate If automatic crossover is desired during the run adjust the output set value of the second controlling parameter to the maximum setting desired When actual output relative to the second controlling parameter equals its output set value the output will cross over from the first controlling parameter to the second 8 When the set time is elapsed the output is automatically shutdown Volt and mA display zero and timer shows the set time Wait one minute before disconnecting the power cords from the gel unit Turn the main power switch off when the unit is not in use User s protection and safety A Yellow LED indicates a fault situation and cut off the power supply 1 Overload 2 Output to earth leakage 3 Output open circuit 4 Chamber lead s disconnected or defective 5 Output short circuit Press STOP to resume and look for the wrong situation Press START t
9. o cancel the previous elapsed values 3 Set the new value in minutes by depressing the increasing and decreasing Switches To change the output settings use the V mA dedicated tactile switches to increase or decrease the voltage or current settings 4 Depress the START switch to initiate output The START LED green will illuminate and the output Leds will display the actual values simultaneously Depending on the output set values one of the two modes Leds VOLTS MILLIAMPS will illuminate indicating the parameter controlling output Slight increases or decreases in output readings for those parameters not limiting will occur as the experiment progresses These changes accurately represent changes in the resistive load electrophoresis unit due to changes in temperature buffer capacity etc This is to be expected 5 To view the output set values during the run depress the READING switch The leds will display the output set values as long as READING switch is depressed Once the READING switch is released the Leds will display the output set values for three seconds and then switch back to displaying the actual output values 6 It is possible to change the set values during the run without depressing the STOP Switch To change the output set values during the run depress the increase or decrease tactile switch until the appropriate output set value is reached In START status when the set switch is moved the leds wil
10. o run again TROUBLESHOOTING GUIDE CONDITION Display fails to illuminate when the POWER switch is put on The desired MODE is not flashing Two different modes are blinking alternatively The time does not elapse The TIMER mode is ON but after a mains failure the set values are not saved and other set values are displayed TIMER mode is ON all other parameters are correctly set but the unit returns on FAULT STOP mode when pressing the START switch PROBABLE CAUSE Fuses have blown One of the other parameters is limiting output Settings for both parameters are too close to the actual output TIMER mode is OFF The new set values were not memorised 1 Settings are wrong 2 Fault situation 3 Timer is not cleared WARNING REMEDY See Warning below Increase the output set value of the parameter controlling output until the desired output mode is controlling Increase the set value for the mode you do not wish to be limiting Put the TIMER ON by depressing the ON OFF switch located under the timer display Set again the new values and depress the START switch to memorise the new values 1 Check the settings V mA 2 Check the connections on the electrophoresis chamber 3 Depress the CLEAR switch Never attempt to remove the outer casing or make any unit repairs Contact ELCHROM if the need for repair or servicing should arise Should the power supply fail DO NOT r
11. ropriate output set value is reached In START status when the reading switch is depressed the Leds will display the output set values during three seconds and then switch back to displaying the actual output values 5b To establish the limiting constant mode for the particular experiment set the controlling parameter to the output desired and increase the other output set value until the appropriate MODE LED VOLT MILLIAMPs illuminates If the non controlling output set values is reached during the course of the run the power supply will automatically crossover to the new mode and control output relative to that mode The appropriate MODE led will illuminate If automatic crossover is desired during the run adjust the output set value of the second controlling parameter to the maximum setting desired When actual output relative to the second controlling parameter equals its output set value the output will cross over from the first controlling parameter to the second 6 When the run has been completed depress the STOP switch to cease power output Wait one minute before disconnecting the power cords from the gel unit Turn the main power switch off when the unit is not in use Initiating Output with timer mode 1 If the green LED located on the left of the TIMER is not alighted depress the ON OFF switch to activate the TIMER then the green Led located on the left of the display illuminates 2 Depress the CLEAR switch t
12. ted when the protection lids are closed Specifications Mains supply voltage fluctuations not to exceed 10 of the normal voltage Mains supply 110V model Mains supply 220V model Fuse value in the mains plug UK Rated input power current GEPS 200 2000 V I range Power Timer range Mode of operation Switching frequency Output regulation stability Minimum output Value display accuracy Mains failure during the run Fault detection Fault status Earth leakage detection level Output to earth impedance Size Weight Environmental conditions 90 130V 50 60Hz T4A fuses 180 260V 50 60Hz T2A fuses 3A 400 VA 1 200 Volts 1Volt step 1 1998 mA 2mA step 0 6 300 watts 1 9999 minutes 1minute step Continuous 23 kHz 0 296 FS x digit 5 Volts 154A 0 6 Watts 0 2 FS v digit Buzzer then automatic restart with previous set values Output supply stop buzzer Yellow LED blinking Output to earth leakage Output open circuit Output short circuit No regulation Overheating power circuit fault 5004A 10M min bypassed by 1nF max 34 cm x 27 cmx 11 cm DXW xH 4 kg Indoor use Altitude up to 2000m Temperature 10 C 40 C Maximum relative RH 8096 for temperature up to 31 C decreasing linearly to 5096 RH at 40 C CLEANING The power supply may be cleaned as required when the main supply is isolated Cleaning should be carried out wit
13. utlined in this section applies only to customers located in the European Union EU This laboratory apparatus is identified with the CE mark This mark indicates that the product complies to the following EU Directives and Standards 72 23 EEC Low voltage directive 89 336 EEC Electromagnetic Compatibility EN 61010 1 1993 Product safety EN 50081 1 1992 Emissions EN 50082 1 1992 Immunity A copy of the declaration of conformity certificate is available upon request 13
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