Transcript
OBSOLETE
GENERAL PURPOSE INCUBATORS 1525, 1535, 1545,1555,1565
MODELS:
INSTALLATION AND OPERATIONINSTRUCTIONS
VWR Scientific A &' VWR COMPANY
GENERAL PURPOSE INCUBATORS MODELS: 1525, 1535, 1545,1555,1565
INSTALLATION AND OPERATION INSTRUCTIONS
Sheldon Manufacturing, Inc. 300 N. 26th Avenue. PO Box 627 Cornelius, Oregon 97113 (503) 640-3000 . FAX: (503) 640-1366 . TELEX: 9102404228 INTERSHELUQ
1.0 RECEIVING AND INSPECTION 1.1 Your satisfaction and safety require a complete understanding of this unit. Read the instructions thoroughly and be sure all operators are given adequate training before attempting to put the unit in use. Note that this equipment must be used only for its intended application; any alterations or modifications will void your warranty.
1.2 The carrier, when accepting shipment, also accepts responsibility for safe delivery and is liable for loss or damage. On delivery, inspect for visible exterior damage, note and describe on the freight bill any damage found, and enter your claim on the
form supplied by the carrier.
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1.3 Inspect for concealed loss or damage on the unit itself, both interior and exterior. If any, the carrier will arrange for official inspection to substantiate your claim.
1.4 Savethe shipping crate until you are sure all is well. If for any reason you must return the unit, contact your service representative for authorization and supply the data plate information. 2.0 INSTALLATION 2.1 In selecting a location, consider all conditions which might affect performance, such as heat from radiatiors, ovens, autoclaves, etc. Avoid direct sun, fast-moving air currents, heating/cooling ducts and high-traffic areas. Allow a minimum of 2" between the unit and walls or partitions which might obstruct free air flow. 2.2 Check the dat plate for voltage, cycle, phase and ampere requirements. If matched to your power source, plug the power cord into a grounded outlet. Voltage should not vary more than 10%from the data plate rating. A separate circuit is recommended to preclude loss of product due to overloading or circuit failure.
NOTE:Electrical supply to the unit must conform to all national and local electrical codes.
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3.0 CONTROLS OVERVIEW 3.1 Power Switch: The main poer ON/OFF switch controls all power to the unit. It must be on before any systems are operational, including control circuitry. The pilot lamp marked indicates ON.
3.2 Main TemperatureControl: This control consists of the thumbwheeland digital display. 3.3 High UmitThermostat: "The Safety is marked SET HIGH LIMIT." Completely independent of the Main Controller, the High Limit guards against any failure of the Main Controller which would allow temperature to rise past set-point. If temperature rises to the safety set-point, the High Limit takes over control of the heating element and allows continued use of the incubator until service can be arranged. 3.4 Heating: This light is ON when the unit is heating up to set point and is blinking when controlling temperature at set point.
3.5 High Umit Ught: The light comes ON when the High Limit Thermostatis activated. . 3.6 Circuit Breaker: The breaker is manually resettable and offers protection agianst power source variations. Protection is in addition to the automatic high-temperature limit designed into the heating element itself.
4.0
OPERATION
4.1 Check power supply against unit serial plate. They must match. 4.2 Plug service cord into the electrical outlet. 4.3 Push power switch ON. 4.4 Set Main Temperature Control-Enter desired set-point temperature by depressing the + /- buttons on the thumbwheel switch located on the front panel. Note that the High Limit Thermostat should be turned to its maximum position, (clockwise) until the unit has stabilized at desired set-point temperature. Allow the incubator at least 24 hours stabilize.
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To re-calibrate the digital display to your reference thermometer, follow the calibration instructions given in Appendix 1. This incubator was calibrated at the factory at 3t>C. A manual reset adjustment may be required if you operate the unit at temperatures other that 3T'C. This adjustment procedure is also detailed in
Appendix 1. 4.5 Set High Limit Thermostat - As mentioned in step 4.4. the High Limit Thermostat should be initially set to its maximum position, (clockwise), to allow the unit to stabilize. Once the incubator is stabilized at the desired set-point, turn the High Limit Thermostat counter-clockwise until the High Limit light turns on. Next, turn the High Limit Thermostat clockwise until the High Limit light just stays off. This will set the High Limit Thermostat at approximately 1°C above main temperature set-point. 5.0 SERVICEAND TROUBLE-SHOOTING 5.1 In the event the incubator does not operate properly, check the following before calling for service: a. Is electrical power reaching the unit? (Check for blown fuse.)
b. Is servicecord connectedto outlet? c. Is door closed tightly? d. Is safetyknob set lowerthan controlknob? (Safetyknob must be set at a temperatureabovethat of controlknob.) 6.0
PARTSUST
PART#
DESCRIPTION
100014
Power Cord
101758
Circuit Breaker
X1000124
On/Off Switch
100001
Thermostat
100019
Door Element
890081
Element 2000W 250V Models: 1525(1), 1535(1), 1545(1), 1565(2) 3
6.0
PARTS LIST CONTINUED
PART#
DESCRIPTION
200114
Element 2500W 250V Model: 1555(1)
X1000729
Temperature Sensor
210002
Fan Motor
104040
Control; ECD
104042
Probe; ECD
104043
Thumbwheel; ECD
200020
Pilot Light
100020
Outlet
01 SPLA'( SET
:r
~rTI~
CAUBRATION DRAWING
4
SET
APPENDIX I CALIBRATION PROCEDURES Digital Incubator
Prior to starting calibration,the unit should have the thumbwheelset at desiredoperatingtemperature,a thermometer situatedat the center of the chamberand should be allowedto stabilizefor 24 hours. (Thethermometershould not be touching any shelves). The adjustment pots are located to the right of the digital display and are accessed through the two holes. The top pot adjusts only the display, clockwise to increase, counterclockwise to decrease the digital readout. The bottom pot adjusts the proportional band, clockwise to raise, counterclockwise to lower temperature. Step 1. MATCHING DISPLAYTO ACTUAL TEMPERATURE (A small long shaft screwdriver will be required) A. B. C. D.
Check thermometer inside chamber. Adjust display pot to make display match actual temperature. Allow unit to stabilize 2 hours and check temperature. MATCH: Repeat 1a, 1b, 1c until matched & stable.
Step 2. CALIBRATINGCONTROL TO SET TEMPERATURE A. Step 2 should not be started until Step 1 is complete. B. If the digital display and the thumbwheel do not correspond, calibrate the thumbwheel using proportional band pot following procedures listed below: (Seeattached calibration drawing on opposite page.) 1). If the actual temperature on the digital display is higher than the desired temperature on the thumbwheel, turn down the porportional band pot (counterclockwise) very slightly. If the actual is lower than the desired temperature, turn up the proportional band pot (clockwise) very slightly. 2). After making any adjustments, wait at least 60 minutes for the unit to re-stabilize. 3). After the unit has re-stabilized, the actual temperature does not match the thumbwheel, then repeat steps 81 and 82 until they do match.
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