Related Manuals for Thermo Scientific 3721
Summary of Contents for Thermo Scientific 3721
- Page 1 Model 815 (3721 and 3722) Microprocessor Controlled Low Temperature Incubator Operating and Maintenance Manual 3177879 Rev. H...
- Page 2 Preface Covered Volume (cu. ft.) Voltage Models 3721 3722 Manual Number 3177879 24342/IN-3866 Added specs and additional info for CSA 11/08 24342 10/08 1900381 rear comp cvr (from 316126, 1900390 int back wall plate (from 316135) 24609 5/08 3185173 to 130630, 3164634 to 3164636...
- Page 3 Material in this manual is for information purposes only. The contents and the product it describes are subject to change without notice. Thermo 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.
- Page 4 This product is required to comply with the European Union’s Waste Electrical & Electronic Equipment (WEEE) Directive 2002/96/EC. It is marked with the WEEE symbol. Thermo Scientific has contracted with one or more recycling/disposal companies in each EU Member State European Country, and this product should be disposed of or recycled through them.
- 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 Thermo Scientific Low Temp Incubator...
-
Page 8: Table Of Contents
Accessories ..........8-2 Thermo Scientific... -
Page 10: Introduction
Note Do not - for any reason - return this unit without first obtaining authorization. In any correspondence to Thermo, please supply the nameplate data, including catalog number and serial number. ▲ Thermo Scientific Low Temp Incubator... -
Page 11: Performance Data
Regardless of what temperature is being maintained, the compressor operates continuously. This constant operation alleviates component failures associated with cycle type operation. The circulating fan provides even air distribution throughout the chamber and ensures temperature uniformity. Low Temp Incubator Thermo Scientific... -
Page 12: Explanation Of Front Panel Controls
Enter Key - This key is used after any setpoint selection is made to enter the value into memory. Up/Down Arrow keys - These keys are used to increase or decrease the desired setpoint value. Thermo Scientific Low Temp Incubator... -
Page 13: Explanation Of Auxiliary Panel
The user can also change the setpoint temperature from their personal computer and periodically monitor the actual temperature, setpoint temperature, and alarm status. Low Temp Incubator Thermo Scientific... -
Page 14: Instrumentation Port
An extra plug is supplied for the user's convenience. Be sure to seal any gaps around the wire(s) going through the plug. Thermo Scientific Low Temp Incubator... -
Page 16: Installation
Radiators, air-conditioning outlets, other ventilating system outlets, and drafts can affect the operation of the incubator by a sudden inrush of air that is at a temperature different than operating conditions. Warning For personal safety, this apparatus must be properly grounded. ▲ Thermo Scientific Low Temp Incubator... -
Page 17: Safety Precautions
3. Avoid spillage of liquids within the chamber. 4. Do not evaporate noxious fumes. Caution Do not store containers filled with acidic or caustic solutions, as vapors from these materials will attack the evaporator and void the warranty. ▲ Low Temp Incubator Thermo Scientific... -
Page 18: Operation And Calibration
The CALIBRATE key should be used ONLY to match a stable incubator's actual temperature to the calibrated thermometer. Thermo Scientific Low Temp Incubator... - Page 19 Note Software version 2.00 and later has a 30 minute delay for the low and high alarm to avoid nuisance alarms caused by door openings. ▲ Low Temp Incubator Thermo Scientific...
- Page 20 Perform a complete decontamination procedure. Wipe down interior, shelves Between experiments and side panels with disinfectant. Rinse everything well with sterile distilled More frequent decontamination water. may be required, depending on use and environmental conditions Thermo Scientific Low Temp Incubator...
-
Page 22: Service
Freeze-up or gradual drop in chamber temperature: Causes No air circulation in chamber; inoperative fan (see Solution 1) Heater (see Solution 2) Power Supply PCB Assembly (see Solution 3) RTD Temperature Probe (see Solution 3, Step D and/or Solution 4). Thermo Scientific Low Temp Incubator... -
Page 23: Symptoms And Possible Causes
No air circulation in chamber; inoperative fan (see Solution 1) Low line voltage, less than 110V (see Solution 9) Power Supply PCB assembly (see Solution 3) Overcharged Compressor (see Solution 11) Display indicates Malfunctioning RTD Temperature Probe (Solution 4) Low Temp Incubator Thermo Scientific... -
Page 24: Possible Solutions
3. Malfunctioning Power Supply PCB assembly: The Power Supply PCB Assembly has the triac (solid state AC voltage switch) on it which supplies the power to heater. This triac is "told" to operate, when need be, by the microprocessor. Thermo Scientific Low Temp Incubator... - Page 25 4. If the last two steps are not as stated, then most likely the CPU board is bad and should be replaced. 5. Switch the voltmeter to an "AC Volts" scale capable of reading 120 volts. Low Temp Incubator Thermo Scientific...
- Page 26 8. Measure the voltage between TB1-4 (Orange wire) and TB1-6 (Red wire). It should be line voltage. 110 VAC to 120 VAC. 9. If it is not, then most likely the triac is bad. The power supply board should be replaced. Thermo Scientific Low Temp Incubator...
- Page 27 The setpoint temperature setting should be a minimum of 2° below the high temperature alarm setting. If the problem persists, then see Solution 3. Low Temp Incubator Thermo Scientific...
- Page 28 This may be the result of excessive (90°F) ambient temperature adjacent to the compressor, excess dirt on the compressor, or a relay malfunction. Provide additional wall clearance and/or circulation around the unit, clean compressor, or contact Technical Services. Thermo Scientific Low Temp Incubator...
-
Page 30: Maintenance
2) The compressor terminal protective cover must be properly in place before applying electric power to the compressor. 3) Caution should be exercised by service personnel when servicing refrigeration system. 4) Service should be performed by a certified refrigeration technician only. Thermo Scientific Low Temp Incubator... -
Page 32: Options
DB-25 (25-pin) male connector. The cable is a one-to-one wiring format. The pin assignments for the serial port are: SIGNAL DESCRIPTION Serial Transmitted Data Serial Received Data Signal Ground (O V) Thermo Scientific Low Temp Incubator... -
Page 33: Setting Up The Incubator For Communication
If the five (5) seconds is exceeded, the unit will return to the normal operation mode. If the time- out occurs before the value was entered, start over. ▲ Low Temp Incubator Thermo Scientific... - Page 34 60.0 Minutes ....Between reports Press the UP or DOWN key until the setpoint display shows your selection. Press ENTER. The value is entered. Thermo Scientific Low Temp Incubator...
- Page 35 0 = Normal With Status Display Type = 1 or 2: Actual Temperature: Setpoint Temperature: -5.0 Alarm Status: Normal HIGH 4. Allow the setup to time out. The incubator is now ready to communicate with your computer. Low Temp Incubator Thermo Scientific...
-
Page 36: Using The Communication
Wait for the Status Update Time duration you selected to complete, and the communications will correct itself. Besides having the incubator transmit information in one of the three formats, the user can monitor other values or even change some of these from their computer. Thermo Scientific Low Temp Incubator... - Page 37 Example 1: To change Setpoint Temperature to 25.0°C type: T25.0 <CR> Example 2: To change Setpoint Temperature to -.8°C type: T-.8<CR> (A) Actual Temperature: The actual temperature within the incubator. (T) Setpoint Temperature: The temperature at which the user has selected the incubator to operate. Low Temp Incubator Thermo Scientific...
- Page 38 0 = Used for a raw, one-line status output suitable for importing into a spreadsheet 1 = Used for a multi-line format with English headings 2 = Used for the format as “1” but preceded by a clear screen command used by terminals or computers running terminal software. Thermo Scientific Low Temp Incubator...
- Page 39 Section 6 Factory Options Using the Communication Display the Alarm Status: The alarm has three (3) possible values: (continued) 0 = Normal, no alarms 1 = Low alarm 2 = High alarm Low Temp Incubator Thermo Scientific...
-
Page 40: Specifications
Weight .....315 lbs. (142.9 kg) Volume ....48.5 cu. ft. (1.37 cu. m.) Thermo Scientific Low Temp Incubator... - Page 41 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. Low Temp Incubator Thermo Scientific...
-
Page 42: Spare Parts
3180365 INS. TEMP SENSOR BRACKET 316129 BACK HARNESS 3177654 REAR COMPRESSOR COVER 3164636 REAR COMPRESSOR COVER (MODEL FFU2064DW1) 1900381 COMPRESSOR (MODEL FFU20F3AWO) 3180530 COMPRESSOR RUN CAPACITOR (MODEL FFU20F3AWO) 3180531 MOTOR, INTERNAL FAN (MODEL FFU20F3AWO) 3180532 Thermo Scientific Low Temp Incubator... -
Page 43: Accessories
Section 8 Spare Parts Accessories Name Part Number Glass Thermometers 3173710 RS232 Interface Kit 3166245 Oakite Sanitizer 3166250 Digital Chart Recorder 3166207 Chart Paper (100 sheets) 3174255 Access Port Stopper 3167215 Low Temp Incubator Thermo Scientific... - Page 44 Electrical Schematics WIRING DIAGRAM, 815 INCUBATOR 115V * NOTE: DUAL FANS ARE USED ON ONLY ON BODYS WITH MODEL MFU20F36W9 SINGLE FAN USED IN MODEL FFU2064DW1 & TFFU2065FW4 3176814 3176707 3176815 3176813 3176720 3176804 3177654 3175264 Thermo Scientific Low Temp Incubator...
- Page 45 Electrical Schematics WIRING DIAGRAM, 815 INCUBATOR 230V * NOTE: DUAL FANS ARE USED ON ONLY ON BODYS WITH MODEL MFU20F36W9 SINGLE FAN USED IN MODEL FFU2064DW1 & TFFU2065FW4 3176814 3176707 3176815 3176813 3176720 3176804 3177654 3175264 Low Temp Incubator Thermo Scientific...
- Page 46 Section 10 Warranty Information Thermo Scientific Low Temp Incubator 10-1...
- Page 47 Section 10 Warranty Information 10-2 Low Temp Incubator Thermo Scientific...
- Page 48 Thermo Scientific Controlled Environment Equipment 401 Millcreek Road Marietta, Ohio 45750 United States www.thermofisher.com...