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European Country, and this product should be disposed of or recycled through them. Further information on Thermo’s compliance with this directive, the recyclers in your country and information on Thermo Scientific products will be available at www.thermofisher.com. Always use the proper protective equipment (clothing, gloves, goggles, etc.) 4 Always dissipate extreme cold or heat and wear protective clothing.
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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...
Optional Back Up System Controls Temperature Recorder (Optional) Figure 1-1. Freezer Front View Components • Control panel - keypad, displays and indicators • BUS (Optional Back Up System) control panel • Optional temperature recorder or datalogger Thermo Scientific Revco ExF...
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Power switch (mains disconnect) Shelf Bracket Optional Miscellaneous Accessories Probe Optional - Recorder Probe/Datalogger Probe Sealant Control RTD/Redundant Type T (Caution: This is a critical seal. Thermocouple Probe Seal must be maintained.) Figure 1-3. Chamber Probe(s) Revco ExF Thermo Scientific...
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Battery mounting bracket Freezer battery and optional BUS battery Figure 1-5. Battery(s) location and switch • Battery mounting bracket(s) • Battery power switch (freezer and BUS) • Freezer battery • Optional BUS battery • Freezer filter location Thermo Scientific Revco ExF...
Silence - Silences the audible alarm. See Section 4 for alarm ringback times. • Alarm Panel - indicates the current alarm condition. • Up and Down Arrows - Increases or decreases values, toggles between choices. • Enter - Stores the value into memory Revco ExF Thermo Scientific...
Section 1 Installation and Start-Up Operation of the Revco ExF freezer has five basic modes which allow freezer setup and operation. Press the Mode key to scroll through the mode selections. Keypad Up Arrow: Increases or toggles the parameter value.
Parity .......none The data transfer sequence is transmitted in the following format. X refers to numerical temperature data. (NUL) (-) XXX (SP) C (SP) (Error Message) (SP) (LF) (CR) (EOT) (SP) Revco ExF Thermo Scientific...
They will monitoring, should on-board system fail. also trip on high stage, control probe or microboard failures. Figure 1-8 shows the remote contacts in alarm state. Figure 1-8. Remote Alarm Contacts Thermo Scientific Revco ExF...
The following set points can be entered in Settings mode: Control temperature, high temperature alarm set point, low temperature alarm set point, and (optional) BUS set point. Default settings are shown in the table following. Revco ExF Thermo Scientific...
5 minutes if water is not connected and flowing on unit start-up. Refer to Section 5. Set Operating Revco ExF freezers have an operating temperature range of -50°C to -86°C, depending on ambient temperature. The freezer is shipped from the Temperature factory with a temperature set point of -80°C.
In addition, the Run mode allows display of the high stage heat exchange temperature. This information scrolls by pressing the up or down arrow keys. The display returns to the operating temperature in 10 seconds if no keys are pressed. 1-10 Revco ExF Thermo Scientific...
During calibration, the temperature display will not be available. If no keys are pressed for approximately five minutes while in calibration mode, the system will reset to Run mode. Thermo Scientific Revco ExF...
Alarms Section 3 The Revco ExF alarms are displayed on the freezer control panel. When an alarm is active, the indicator next to the alarm description will light and an audible alarm will sound. Press the Silence key to disable the audible alarm for the ringback period.
15 minutes. Probe Failure Alarm The microprocessor in Revco ExF freezers continually scans all probes including the control probe, heat exchanger probe and condenser probe to ensure that they are operating properly. Should an error be detected, the "Probe Failure"...
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Description: This condition indicates that the heat exchange sensor has failed to produce a valid reading for >12 consecutive Er03 reads (~60 seconds). Response: The display will show “Er03” only when the button sequence to read the heat exchange sensor is depressed. Thermo Scientific Revco ExF...
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(Four dashes) Description: Communication between the micro board and the display board has been lost. Under this condition, the visual ---- in display alarm flashes along with dashes in the temperature display (----). Contact Technical Services. Revco ExF Thermo Scientific...
1. Open the front lower door by grasping the bottom left corner. 2. Using a vacuum cleaner, exercising care to not damage the condenser fins, clean the condenser. Depending upon environmental conditions, the condenser may need to be cleaned more frequently. Thermo Scientific Revco ExF...
8. Add and circulate a passivating liquid for corrosion inhibition of plate surfaces. 9. Drain this liquid. 10. Rinse with fresh water and drain. 11. Reconnect the water supply and fill the unit. 12. Return to service. Revco ExF Thermo Scientific...
The water-cooled condenser must be dry and sealed. If stored clean and dry, restoring to service only requires a new in-line strainer filter, proper installation and water flow balancing per Section 5, Water Cooled Condenser. Required: Cleaning solution, supply of dry air or N2 Thermo Scientific Revco ExF...
The unit is designed with a “vacuum relief port” that allows the pressure to be equalized. Revco ExF Thermo Scientific...
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Warning Failure to maintain the vacuum relief port may result in excessive ice build up inside the tube, clogging the port, and inability to open the door. The vacuum relief port may need to be cleaned more often with frequent door openings and high humidity environments. Thermo Scientific Revco ExF...
2 years. Replacement batteries must be rechargeable and are available from Thermo. Refer to the parts list for stock number and description of the replacement batteries. Dispose of the used batteries in a safe manner and in accordance with good environmental practices. Revco ExF Thermo Scientific...
Locate the freezer away from drafts or heating/cooling vents • Keep the number of door openings to a minimum • Minimize the length of time door is open • Make sure door latches securely after opening Thermo Scientific Revco ExF...
5. Remove the two Phillips head screws securing the metal bracket on the vent stack assembly. 6. Install the vent stack through the opening and secure it to the top of the freezer, using screws. Thermo Scientific Revco ExF...
3. Tap #8-32 the two pre-punched holes located on the interior left wall of the freezer. Mount the bracket. Figure 5-4 shows the Back-Up probe mounted on the interior left side wall of the freezer. Figure 5-4. Mounted probe clip Thermo Scientific Revco ExF...
(no injection occurs). This light stays on until the unit is below BUS setpoint. b. The Low Battery indicator may also illuminate. 5. Turn the battery switch to Standby mode ( ) to charge both batteries. Revco ExF Thermo Scientific...
The solenoid engaged indicator should light. If the Low Battery indicator lights during the test, replace the BUS battery. Note Solenoid will not engage if door is open. Thermo Scientific Revco ExF...
(See Section 1 - “Setting the High Temperature Alarm). If the back-up system is installed with CO , then -65°C is the coldest BUS set point that can be used (if the cabinet set point is -75°C or colder). Revco ExF Thermo Scientific...
3. Slowly disconnect the fitting assembly from the supply (in the event that any gas remains in the line). Chart Recorder The following section describes the set up and operation of the optional chart recorder. Figure 5-7. Recorder Details Thermo Scientific Revco ExF...
Note The felt-tip pen on the recorder requires periodic replacement. The ink will appear to fade before replacement becomes necessary. Additional pen tips may be purchased from Thermo. Revco ExF Thermo Scientific...
Clearance: Before installing the water connections, position the freezer with an extra 2 inches (5cm) clearance in back for a hose. This is in addition to the 6 inches (15cm) clearance in back previously recommended in this manual. Thermo Scientific Revco ExF...
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Caution If Option B is used, the bypass valve MUST be closed prior to freezer operation to ensure all water passes through the freezer rather than the bypass. Failure to do this will result in damage to the freezer. Figure 5-8. Bypass Water Loop Options 5-10 Revco ExF Thermo Scientific...
Do not confuse the fan running with the compressor start-up. Caution Only authorized service personnel should turn the freezer on without water connected and flowing. Caution See Bypass Water Loop Assembly information, if required. Thermo Scientific Revco ExF 5-11...
Operating Range: 208VAC-230VAC Operating Range: 208VAC-240VAC 15 Amp, Dedicated Circuit, 15 Amp, Dedicated Circuit, Breaker Requirements 15 Amp Time Delay Breaker 15 Amp Time Delay Breaker Shipping Weight 763 lbs. (346 kg) 900 lbs. (408 kg) Thermo Scientific Revco ExF...
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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. Revco ExF Thermo Scientific...
When handling liquid in open containers, it is advisable to wear high-top shoes. Trousers (which should be cuffless if possible) should be worn outside the shoes. Thermo Scientific Revco ExF A -1...
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Use only the loose- fitting necktube core supplied or one of the approved accessories for closing the necktube. Check the unit periodically to be sure that venting is not restricted by accumulated ice or frost. A -2 Revco ExF Thermo Scientific...
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Disposal of liquid nitrogen should be done outdoors in a safe place. Pour the liquid slowly on gravel or bare earth where it can evaporate without causing damage. Do not pour the liquid on pavement. Thermo Scientific Revco ExF A -3...
Disposal of liquid CO should be done outdoors in a safe place. Pour the liquid slowly on gravel or bare earth where it can evaporate without causing damage. Do not pour the liquid on pavement. A -4 Revco ExF Thermo Scientific...
108° F. Under no circumstance should the water be over 112° F, nor should the frozen part be rubbed either before or after rewarming. The patient should neither smoke nor drink alcohol. Thermo Scientific Revco ExF A -5...
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Thermo Fisher Scientific 401 Millcreek Road Marietta, Ohio 45750 United States www.thermofisher.com...
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