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Model 3911/3913 ______________________________________________________________________________Spare Parts

7 - 1

Fittings

Fill Port

1/8” FPT

Drain Port

3/8” OD Copper

Unit Heat Load

115V

5500 BTUH (1600W)

220V

6000 BTUH (1750W)

Refrigeration

Compressor

1/4 Horsepower, air-cooled

Refrigerants

Non-CFC

Electrical

3911

208-220V, 1 PH, 60Hz, 3P, 4W,
14.0 FLA

3913

220-240V, 1 PH, 50/60Hz, 2P, 3W,
14.0 FLA

Line Cord

Model 3911

NEMA 14-20 Plug

Model 3913

None (lockable disconnect provided)

Dimensions

Exterior

38.0”W x 51.5”H x 32.0”F-B
(96.52 cm x 332.3 cm x 81.3 cm)

Interior

31.0”W x 24.0”H x 27.0”F-B
(78.7 cm x 154.8 cm x 68.6 cm)

Continuing research and improvements may result in speci-
fication changes at any time. Performance plus or minus
the least significant digit unless otherwise specified.

Section 7 - Spare Parts

Part No.

Description

Qty

290163

RTD Temperature Sensor

230066* Fuse, Ceramic 10A 350V

290162

RH/Temp Control Signal Conditioner

400051

Power Supply

231186

Controller, Watlow 982 Auto Tune

320277

Triac, 25A

285615* Fuse, Fusetron 25A

620430* Humidifier Heater

270010

Thermostat, B-10 0-220F

131300 Blower

Wheel

410048 Defrost

Timer

630090 Heater

205062

Condensing Unit, 1/4 HP 115V R-134A 1

991334

Solenoid, 120V .101” Port

285599

Thermal Fuse, 250V 17A

830044

Blower Motor, 1/4 HP, 115V

*Immediate Stock

Содержание 3911

Страница 1: ...Models 3911 and 3913 Environmental Chamber 11 cu ft capacity Operating and Maintenance Manual Manual No 7013911 Rev 15 ...

Страница 2: ... incidental aris ing out of or related to the use of this manual MANUAL NUMBER 7013911 15 20474 IN 3013 3 7 02 Added heatless dryer option 1900139 aks 14 20342 PIP 012 10 3 01 Revised electrical schematics aks 13 19942 6 11 01 Replaced timer 275030 with 410038 aks 12 19935 5 8 01 Updated 3940 71 drawing aks 11 IN 2858 03 12 01 Revised control panel access and revised electrical schematics aks 10 1...

Страница 3: ...ocedimientos asociadas con este simbulo Equipment being maintained or serviced must be turned off and locked off to prevent possible injury Risques potentiels liés à l énergie L équipement en entretien ou en maintenance doit être éteint et mis sous clé pour éviter des blessures possibles Geräte an denen Wartungs oder Servicearbeiten durchgeführt werden müssen abgeschaltet und abgeschlossen wer den...

Страница 4: ...Model 3911 3913 ________________________________________________________________________________Service iii ...

Страница 5: ...on 3 Start Up and Operation 3 1 3 1 The Control Panel 3 1 3 2 Setting the Incubator s Operating Temperature 3 2 3 3 Setting the Incubator s Operating Humidity 3 2 3 4 Programming the controllers 3 2 a Removing the mechanical lockout 3 3 b Removing the Software Lockout 3 3 3 5 Air Exchange Ventilator Caps 3 3 3 6 Heatless dryer optional 3 3 Section 4 Routine Maintenance 4 1 4 1 Cleaning the Incubat...

Страница 6: ... water has a resistance of above 1M Ohm to 18M Ohm Even high purity water can contain bacteria and organic con taminants Water should always be sterilized or treated with a decontaminant safe for use with stainless steel as well as safe for the product prior to being introduced into the humidity reservoir Distilled or de ionized water used in the humidity reservoir must be within a water quality r...

Страница 7: ...of the incubator Water inlet pressure must not exceed 40 PSI a manual shut off valve should be installed between the main water supply and the incubator To prevent mineral buildup on heater coils and humidity generator walls it may be necessary to clean the humidity generator and immersion heaters with a non metallic abrasive pad and flush thoroughly every two to three months Refer to Section 5 7 ...

Страница 8: ...e controls as follows Overtemp Safety Thermostat Fully Clockwise Undertemp Safety Thermostat Fully Counterclockwise Main Power Switch ON Humidity Controller Desired Setpoint Temperature Controller Desired Setpoint Door Heater 40 factory set For best overall performance of the incubator the refrigera tion switch should be turned on for most applications When running Low or No humidity at high tempe...

Страница 9: ...he 9 volt battery as shown in Figure 2 3 If the unit is operating the green LED lights steady If the unit is not turned on the LED blinks If the battery is weak or not connected the green LED will flash If power is lost to the cabinet the LED will also flash When replacing the 9 volt battery use only an alkaline style battery Dispose of the old battery following established envi ronmental practice...

Страница 10: ...pears 3 Press the Display key once 4 Turn off the main power switch 5 Wear a grounding wrist strap to avoid damaging any of the electrical components 6 Remove the 982 controller module s by pressing in the four retaining tabs two on the right side two on the left side Pull the controller module out by gently rocking it from side to side 7 Looking at the top and right side of the controller mod ule...

Страница 11: ...t2 NA dB 0 0 rE1 0 50 Ct1 5 rA2 0 25 It1 NA Pb2 1 0 dE2 NA rA1 0 19 rE2 0 25 Ct2 30 PROG See Programming Sheets if required Setup Menus InPt In1 RT D CAL1 rL2 NA CAL2 NA dEC1 NA rtd1 DIN rH2 NA Hunt NA rL1 20 0 Ftr1 2 LrnL NA rHi 80 0 In2 NA LrnH NA OtPt Ot1 Ht AL2 NA LAt3 nLA SIL4 NA PrC1 NA LAt2 NA SIL3 OFF Aout NA HyS1 0 1 SIL2 NA Ot4 NA PrC3 NA Ot2 CL Ot3 AL3 AL4 NA ArL NA PrC2 NA AL3 Pr1 HyS4...

Страница 12: ...larm points PID Pb1 8 dE1 NA It2 NA dB 0 rE1 0 05 Ct1 5 0 rA2 0 35 It1 NA Pb2 7 dE2 NA rA1 0 35 rE2 0 03 Ct2 30 PROG See Programming Sheets if required Setup Menus InPt In1 0 5 CAL1 rL2 NA CAL2 NA dEC1 0 rtd1 NA rH2 NA Hunt NA rL1 0 Ftr1 2 LrnL NA rHi 100 In2 NA LrnH NA OtPt Ot1 Ht AL2 NA LAt3 nLA SIL4 NA PrC1 NA LAt2 NA SIL3 OFF Aout NA HyS1 1 SIL2 NA Ot4 NA PrC3 NA Ot2 CL Ot3 AL3 AL4 NA ArL NA P...

Страница 13: ...y control the undertemp con trol is not directly calibrated The numbers 0 to 10 on the dial are for reference only and do not correspond to any specific temperature If an undertemp condition occurs the alarm can only be silenced by lowering the undertemp safety thermostat setting However the cause of the problem must be determined and cor rected before normal operation under the main temperature c...

Страница 14: ...urrently off When controlling humidity the dehumidification switch should be in the ON position for most applications The dehumidification light will cycle on and off as the humidity controller toggles between humidify and dehumidify The dehumidify light will be de energized when the system is in Defrost mode Humidity is removed from the cabinet by the refrigeration evaporator coil Moisture accumu...

Страница 15: ...for the dryer to operate The dryer is controlled with the humidity controller a Removing the mechanical lockout Make sure the unit is turned off Wearing a grounding wrist strap or maintaining constant con tact with the metal cabinet press in the four locking tabs on the frame of the Temperature con troller There are two tabs on either side as shown in the front and side views in Figure 3 7 When al...

Страница 16: ... or soap and water Disinfect the interior panels with a general use laboratory disinfectant diluted according to the manufacturer s instruc tions rinse the surface thoroughly after each cleaning and wipe the surfaces dry always rub in the direction of the finish polish lines Do not use chlorinated solvents on stainless steel as they can cause rusting and pitting Do not use volatile or aromatic sol...

Страница 17: ...hnicians using NIST traceable instruments available in many areas For more information on Preventive Maintenance or Extended Warranties please contact us at the number below Cleaning and calibration adjustment intervals are dependent upon use environmental conditions and accuracy required Tips for all incubators Do NOT use bleach or any disinfectant that has high chloros Use sterile distilled or d...

Страница 18: ...nt decontamination may be required depending on use and environmental conditions 2 9 Verify and document all calibrations at the minimum 5 7 Inspect and clean the humidity generator at the minimum Clean drip pan and drain lines Clean refrigeration system condenser Verify defrost cycle for below 10 C operation Change filters under normal conditions Qualified service technicians only Regular monitor...

Страница 19: ...he overtemp cable to the existing wires after replacing the probe 5 3 Replacing the Humidity Temperature Sensor 1 Locate the probe mounting plate in the center of the right side of the incubator interior 2 Open the mounting plate by removing the screws that hold it in place 3 Locate the humidity sensor mounted on the inside of the panel in a black housing Note the angle of the probe 4 Grasp and un...

Страница 20: ...oil water Make certain sufficient time is given to allow the unit to completely cool before removing the top Model 3911 3913 _________________________________________________________________________________Service 5 Lift the top off of the steam generator and lay it to the side taking care to not crimp the copper capillary tube 6 Siphon all of the water out of the steam generator and clean it with...

Страница 21: ..._______Specifications a Checking the Steam Generator Safety Thermostat Calibration 1 Turn the slotted rheostat shaft of the temperature control on the back of the steam generator fully clockwise 2 Remove all tools and cleaning materials from the top of the incubator Reconnect power to the unit and turn it on 3 Set the RH level to 100 and open the incubator door This will cause the heaters in the s...

Страница 22: ... W x 24 0 H x 27 0 F B 78 7 cm x 154 8 cm x 68 6 cm Continuing research and improvements may result in speci fication changes at any time Performance plus or minus the least significant digit unless otherwise specified Section 7 Spare Parts Part No Description Qty 290163 RTD Temperature Sensor 1 230066 Fuse Ceramic 10A 350V 1 290162 RH Temp Control Signal Conditioner 1 400051 Power Supply 1 231186...

Страница 23: ...Model 3911 3913 ______________________________________________________________________________Spare Parts 7 2 ...

Страница 24: ...Model 3911 3913 ____________________________________________________________________Refrigeration Schematics 8 1 ...

Страница 25: ...Model 3911 3913 _______________________________________________________________________Electrical Schematics 9 1 ...

Страница 26: ...Model 3911 3913 _______________________________________________________________________Electrical Schematics 9 2 ...

Страница 27: ...Model 3911 3913 _______________________________________________________________________Electrical Schematics 9 3 ...

Страница 28: ...Model 3911 3913 _______________________________________________________________________Electrical Schematics 9 4 ...

Страница 29: ...Model 3911 3913 _______________________________________________________________________Electrical Schematics 9 5 ...

Страница 30: ...Model 3911 3913 _______________________________________________________________________Electrical Schematics 9 6 ...

Страница 31: ...9 7 Model 3911 3913 _______________________________________________________________________________________________________Electrical Schematics ...

Страница 32: ...9 8 Model 3911 3913 _______________________________________________________________________________________________________Electrical Schematics ...

Страница 33: ...9 9 Model 3911 3913 _______________________________________________________________________________________________________Electrical Schematics ...

Страница 34: ...Thermo Forma Millcreek Road P O Box 649 Marietta Ohio 45750 U S A Telephone 740 373 4763 Telefax 740 373 4189 ...

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