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Instruction Manual

Fisher Scientific

Isotemp

Economy Incubators

500 Series

Model 525D (Small)

Cat. No. 11-690-525D & -526D

Model

537D

(Medium)

Cat. No. 11-690-537D & -538D

Model

550D

(Large)

Cat. No. 11-690-550D & -551D

Содержание Isotemp 500 Series

Страница 1: ...Instruction Manual Fisher Scientific Isotempâ Economy Incubators 500 Series Model 525D Small Cat No 11 690 525D 526D Model 537D Medium Cat No 11 690 537D 538D Model 550D Large Cat No 11 690 550D 551D ...

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Страница 3: ...ols 4 Safety Precautions 5 Operation 5 Limit Alarms 6 Calibration 7 Service 9 Replacing the Glass Door 10 Accessing the Electronics Compartment 11 Replacing the Heater 12 Replacing the Controller 13 Replacing the Control Thermocouple 14 Troubleshooting 15 Replacement Parts 16 Performance Characteristics 17 Specifications 18 Electrical Schematic 19 ...

Страница 4: ...xhaust air is vented through a port at the incubator top The Model 525D accommodates a maximum of five shelves The Model 537D holds eight shelves while the 550D holds up to eleven Isotemp incubators incorporate a variety of safety features A safety backup is built into the controller if the primary heater control fails the Backup will maintain control at 3 C above the set point An alarm LED Then i...

Страница 5: ...ors are shipped in a single carton After unpacking locate each item shown in the list below Report any missing items by name and part number to your Fisher branch In the event of shipping damage retain the shipping material and file a claim with the final carrier Item Incubator Assembly Model 525D small Cat 11 690 525D 120 V 50 60 Hz Cat 11 690 526D 240 V 50 60 Hz Model 537D medium Cat 11 690 537D...

Страница 6: ...re a front panel mounted power switch which is a combination power switch and circuit breaker eliminating the need for separate fusing The circuit breaker will interrupt power in the event of a heater malfunction Press the I upper half of the rocker type power switch to the in position to turn the incubator on Press the O lower half to the in position to turn off incubator power To reset the break...

Страница 7: ......

Страница 8: ...dial marked in five degree increments serves to set the incubator temperature Temperature Sets the incubator operating temperature in degrees Dial Celsius C Heat Indicator Lights when power is being supplied to the incubator heater Alarm Indicator Lights if the actual incubator temperature exceeds the alarm temperature The alarm temperature is factory adjusted to be 3 C above the set temperature P...

Страница 9: ... a set temperature until that set temperature is changed To achieve a set temperature perform the following 1 Rotate the temperature dial full counter clockwise 2 Place the power switch in the ON position The Power indicator will come on 3 Rotate the temperature dial to the desired set temperature The Heat indicator will then come on 4 When the actual temperature approaches the set temperature the...

Страница 10: ...m limit the alarm indicator LED will light The reference point for the alarm is the set temperature Any change in the set temperature will cause a corresponding shift in the alarm temperature Example If the set temperature is 40 C the alarm will trip at 43 CC If the set temperature is changed to 50 C the alarm will follow the set temperature and trip at 53 C Changing the set temperature to a value...

Страница 11: ...f the set temperature dial To recalibrate the controller perform the following procedures 1 Place a calibrated thermometer preferably traceable to NIST standards in oven chamber 2 Rotate temperature dial full counter clockwise CCW 3 The dial line should point to 20 C if not loosen the set screw holding the dial on its shaft Rotate shaft until dial line points to 20 C 4 Press incubator Power switch...

Страница 12: ...ns cycling on off allow an additional 30 minutes for incubator to reach a final stable temperature If thermometer reads 70 C 1 C calibration is complete Otherwise continue with the following steps 12 Carefully remove the temperature dial knob without rotating it 13 Use a thin blade screwdriver to calibrate High Adjust Check thermometer reading If reading is less than 69 C rotate High Adjust slight...

Страница 13: ...oltage These procedures should be undertaken only by qualified service personnel The next section Accessing the Electronics Compartment describes procedures required of subsequent service sections and is referenced by these later sections when required For Technical Assistance call 1 800 926 0505 For Field Service Division Assistance call 1 800 395 5442 Caution Service procedures involve exposure ...

Страница 14: ...rews on outside of upper and lower hinges of the glass door 2 Remove old glass door and set aside 3 Generally reverse steps above to install replacement glass door Adjust hinge position until gap between door and frame is roughly equal on all sides Allow incubator to cool to ambient temperature before attempting repair Caution While loosening hinge set screws continue to grasp the glass door When ...

Страница 15: ...ir Caution Service procedures requiring access to the electronics compartment involve exposure to line voltage and should be done by qualifled service personnel Disconnect incubator from power before attempting repairs 2 Remove two screws from top of incubator securing bezel to cover 3 Grasp bezel and pull top outward The bezel bottom will disengage from the fascia 4 Rotate bezel upward an lay fac...

Страница 16: ...erature before attempting repair 2 Remove the two screws that secure the heater cover Remove the cover by lifting and sliding it forward It may be necessary to use a flat blade screwdriver to assist in lifting the cover upward Set heater cover aside 3 Remove the two nuts and lock washers securing the heater leads then pull the lead terminals off the heater studs 4 Remove the two screws securing he...

Страница 17: ... 3 Locate three push on terminals at right hand side of controller board heater wire two power wires Disconnect the three lead wires by pulling up an doff terminals Note connections for later re assembly 4 Remove four screws w3hich mount the controller board to the bezel Lift out board 5 Loosen set screws in two position terminal at front of controller board and disconnect thermocouple wires 6 Ins...

Страница 18: ...is negative and yellow positive 3 On lower back wall of incubator locate two clips which hold the thermocouple in place Remove thermocouple from clip 4 Pull defective thermocouple forward into incubator chamber exposing roughly a 6 inch section of the thermocouple wire 5 Cut the thermocouple wire to remove the thermocouple sheath 6 Securely loop together the cut end of the defective thermocouple w...

Страница 19: ...rmocouple erratically high Failure to heat Set temperature less than Refer to Operation Section actual temperature Defective control thermocouple Replace control thermocouple Poor heater connections Tighten connections at terminal strip Defective heater element Check heater resistance on schematic at back of manual Replace heater unless approximately same as schematic Defective controller Replace ...

Страница 20: ... V Models 525D 537D 550D SPN 95704 240 V International Temperature Controller 120 V SPN 95913 CTRL 240 V SPN 95914 Thermocouple Assembly SPN 95603 TC Shelf Fits All Models 13 247S Shelf Support Need Two per Shelf SPN 95635 Heater Assembly Models 525D 537D 120 V SPN 95693 HTR Models 525D 537D 240 V SPN 95734 Model 550D 120 V SPN 95694 Model 550D 240 V SPN 95735 Circuit Breaker Single Pole 120 V SPN...

Страница 21: ...g Range 30 to 70 C Average Uniformity 37 C 1 C Resolution 0 5 C Recovery Time 37 C door open 30 seconds Model 525D 1 minute Model 537D 1 minute Model 550D 3 5 minutes BTU hr Output 37 C 75 C Model 525D 55 290 Model 537D 75 360 Model 550D 95 430 Performed as per ASTME 1292 ...

Страница 22: ... 11 690 537D 120 V 50 60 Hz Cat No 11 690 538D 240 V 50 60 Hz Model 550D Cat No 11 690 550D 120 V 50 60 Hz Cat No 11 690 551D 240 V 50 60 Hz Power Requirements Chamber Volumes Model 525D 260 W 2 5 cu ft Model 537D 260 W 3 8 cu ft Model 550D 320 W 5 0 cu ft Chamber Dimensions W x D x H Model 525D 18 x 18 x 13 5 in Model 537D 18 x l8 x 20 in Model 550D 18 x 18 x 26 5 in ...

Страница 23: ...Page 19 Isotemp Economy Incubators Electrical Schematic ...

Страница 24: ...Fisher Technical Support 1 800 926 0505 Fisher Service Dept 1 800 395 5442 Fisher Sales Parts 1 800 766 7000 Part No 95586 Rev G 500 Series Economy Incubators Published 11 2003 ...

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