Related Manuals for Thermo Scientific 3920
Summary of Contents for Thermo Scientific 3920
- Page 1 Forma Environmental Chamber Model 3920 Operating and Maintenance Manual 7063920 Rev. 12 Visit us online to register your warranty www.thermoscientific.com/labwarranty...
- Page 2 Added wall anchor information to pg 1-2 40018 2/10/15 Added drain figure to pg 1-3 28882/IN-4244 9/24/14 Updated drains in assembly drawing 3920-00 31358/IN-4569 7/24/14 Door light option part number is now 1900604 30415 10/14/13 Added instructions for left hand door access to control panel and recorder install...
- Page 3 Thermo Fisher Scientific makes no representations or warranties with respect to this manual. In no event shall Thermo be held liable for any damages, direct or incidental, arising out of or related to the use of this manual. ©2011 Thermo Fisher Scientific. All rights reserved. Environmental Chamber Thermo Scientific...
- Page 4 EU Member State. For further information, send an email to [email protected]. Always use the proper protective equipment (clothing, gloves, goggles, etc.) Always dissipate extreme cold or heat and wear protective clothing. Always follow good hygiene practices. Each individual is responsible for his or her own safety. Thermo Scientific Environmental Chamber...
- Page 5 We can also provide you with a quotation on our Extended Warranty for your Thermo Scientific products. Whatever Thermo Scientific products you need or use, we will be happy to discuss your applications. If you are experiencing technical problems, working together, we will help you locate the problem and, chances are, correct it yourself...over the telephone without a service...
- Page 6 • Repairs to parts or systems resulting from unauthorized unit modifications. • Any labor costs other than that specified during the parts and labor warranty period, which may include additional warranty on CO sensors, blower motors, water jackets, etc. Thermo Scientific Environmental Chamber...
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Page 7: Table Of Contents
Routine Maintenance .........3-1 Thermo Scientific... - Page 8 Warranty Information .........9-1 Environmental Chamber Thermo Scientific...
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Page 9: Installation And Set-Up
(3) inch clearance on each side. This space is necessary to allow adequate air flow around the refrigeration system. At least eight (8) inches of clearance is required at the top of the incubator for service access. Thermo Scientific Environmental Chamber... -
Page 10: Preliminary Cleaning And Disinfecting
5/16 INT. TOOTH LOCKWASHER 3176856 5/16-18 x 1” HH FULL THREAD SS CAP SCREW Warning To prevent tipping, install the wall anchors and secure the unit before using. s Figure 1-4. Shelf Channels Figure 1-3. Wall Anchor Installation Environmental Chamber Thermo Scientific... -
Page 11: Attaching The Drain Connections
The environmental chamber is equipped with 4-20mA output for the remote transmission of temperature or CO data. A terminal strip is located on the back of the incubator for convenience. See Figure 1-6 for terminal pin identification. Figure 1-6. Terminal Strip Connections Thermo Scientific Environmental Chamber... -
Page 12: Remote Alarm Contacts
When an overtemp condition occurs, the cause must be determined and corrected before normal operation under the main temperature controller can be resumed. Environmental Chamber Thermo Scientific... -
Page 13: Set Undertemp Safety Thermostat
To prepare the recorder for operation, open the glass door and snap the time line groove connector onto the 9-volt battery (Figure 1-8). Figure 1-8. Recorder Components Thermo Scientific Environmental Chamber... -
Page 14: Change Chart Paper
The recorder is capable of recording both temperature and humidity and printing alphanumeric chart data on blank heat-sensitive chart. Refer to the Honeywell Configuration Record at the end of Section 4 and the supplemental Honeywell Recorder manual. Environmental Chamber Thermo Scientific... -
Page 15: Access Control Panel W/Left Hand Door Swing
The user should determine the most economical pressure level, between 10 and 20 psig appropriate for the desired CO percentage in the chamber. Use only sufficient pressure to maintain recovery time after door openings. Thermo Scientific Environmental Chamber... -
Page 16: Set Co 2 Content
Alarm indicator on the control panel lights and the audible alarm sounds. The CO alarm high and low setpoints are established through the Watlow PM6 CO controller (A.LO, and A.HI). Refer to the Configuration Record included at the end of Section 4. Environmental Chamber Thermo Scientific... -
Page 17: Accessory Outlet (Optional)
Note All lamps are controlled by the timer when the Auto/Off/manual switch is in the Auto position. By default, lamps 3 and 6 are controlled by the Auto/Off/ Manual switch. The other three light switches enable/disable the additional lamps to operate with the Auto/Off/Manual switch. Thermo Scientific Environmental Chamber... - Page 18 Section 1 Installation and Set-Up Door Light (Optional) continued Figure 1-12. Door Light Configuration 1-10 Environmental Chamber Thermo Scientific...
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Page 19: Start-Up And Operation
Caution The defrost switch must be set to Auto when the temperature setpoint is 10°C, or below. Cool Indicator The Cool Indicator is illuminated when the refrigeration system is acti- vated. Heat Indicator The Heat Indicator is illuminated when the heater is activated. Thermo Scientific Environmental Chamber... -
Page 20: Set The Operating Temperature
The lower display shows Temperature the operatign temperature setpoint. Changing the Setpoint To raise or lower the setpoint, press the Up or Down Arrow. Temperatures are set in 0.1°C increments. Environmental Chamber Thermo Scientific... -
Page 21: Air Exchange Ventilator Caps
The ventilator caps may be opened by turning counterclockwise, and closed by turning clockwise. Caution For optimum performance of the unit, the vent caps should be closed at all times. Thermo Scientific Environmental Chamber... -
Page 22: Routine Maintenance
Caution Do not use volatile or aromatic solvents for cleaning inside the cabinet as their residue can contaminate the cabinet environment. The Thermopane glass door may be cleaned with commercial glass cleaner or with a solution of ammonia and water. Thermo Scientific Environmental Chamber... -
Page 25: Service
10. Disconnect the two wires from the back of the thermostat assembly. 11. Pull the entire assembly from the panel, and remove the unit. 12. Replace the thermostat and probe. Note Reseal probe access hole with Permagum and tie-wrap overtemp cable to existing wires after replacing probe. Thermo Scientific Environmental Chamber... -
Page 26: Replace Temperature Sensor
The Watlow temperature controller has been set at the factory to operate the incubator within the specifications listed in the Specifications section of this manual. Reference copies of the Watlow configuration records are included at the end of this section. Environmental Chamber Thermo Scientific... -
Page 27: Remove Software Lockout
See ‘Remove Software Lockout’ above. Lower display Upper display Keystrokes LoC.o Change to 3 = unlocked LoC.P No changes required PAS.E No changes required rLoC Change to 5 = unlocked SLoC Change to 5 = unlocked Thermo Scientific Environmental Chamber... -
Page 28: Restore Software Lockout
1. Open the incubator door, and locate the probe mounting plate attached to the center of the right interior wall. Remove the mounting plate. 2. The recorder probe is attached to the lower end of the back of the Environmental Chamber Thermo Scientific... -
Page 29: Replace Optional Recorder And Probe(S)
If an adjustment is necessary, press either the #1 or #2 button to move the pen left or right. The button must be held about five seconds before the pen begins to move. Release the button when the pen matches the Figure 4-2. Button thermometer. Thermo Scientific Environmental Chamber... -
Page 30: Set The Door Heater Control
4-3 through 4-4. Calibration Start from the standard operating display (setpoint in bottom display, actual CO reading in the upper display). WATLOW EZ-ZONE Infinity Key Silence Key Advance Key Figure 4-4. Key Locations Environmental Chamber Thermo Scientific... - Page 31 Section 4 Service TEMPERATURE CONFIGURATION RECORD (WATLOW PM8) MODELS: 3911, 3913, 3920, 3940, & 3949 JOB NUMBER: UNT SERIAL NUMBER: CONTROL TYPE: Temperature PREPARED BY: DATE 24-Sep-2011 Operations Page: (Press "UP" & "DN" keys for 3 sec.) Ai 1 Ai 2 §(Ain)
- Page 32 $ LOC should be set at 5 until factory testing and calibration is complete. @ This is a calibration factor and will vary from unit to unit. ¹ Indicates parameters added in version 11.00 control firmware. Not present in ver. 10.00 Environmental Chamber Thermo Scientific...
- Page 33 Section 4 Service CO2 CONFIGURATION RECORD (WATLOW PM6) MODELS: 3920, 3940, 3948 & 3949 (KITS 1900226 & 1900227) JOB NUMBER: UNT SERIAL NUMBER: CONTROL TYPE: PREPARED BY: DATE 24-Sep-2012 Program Page See Programming Sheets if required.* Operations Page: (Press "UP" & "DN" keys for 3 sec.) i.Er...
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Page 34: Specifications
Finish ..... . .Powder coated Salt spray tests exceed 1000 hrs. per ASTM Standard B117-85. * Better than ±0.5°C uniformity at all other temperature parameters. Thermo Scientific Environmental Chamber... -
Page 35: Section 5 Specifications
... .(96.52cm x 222.25cm x 81.28cm) Interior ...31.0”W x 60.0”H x 27.0”F-B ... . .(78.74cm x 152.4cm x 68.58cm) Environmental Chamber Thermo Scientific... - Page 36 Pollution degree describes the amount of conductive pollution present in the operating environment. Pollution degree 2 assumes that normally only non-conductive pollution such as dust occurs with the exception of occasional conductivity caused by condensation. Thermo Scientific Environmental Chamber...
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Page 37: Spare Parts
Watlow PM6 Controller (CO option) 230148 20A Fuse 403940 Over Temp Thermostat 403941 Under Temp Thermostat 410048 Defrost Timer 630090 Heater (wirewound) 205153 Condensing Unit, 1/4 HP 115V R-134A 285599 Thermal Fuse 830044 Blower Motor, 1/4 HP, 115V Thermo Scientific Environmental Chamber... - Page 38 Environmental Chamber Thermo Scientific...
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