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Isotemp

Programmable Ovens

800 Series

Model 825F (Small)
Catalog # 13-247-825F & -825FC - Domestic
Catalog # 13-247-826F & -826FC - International

Model 838F (Medium)
Catalog # 13-247-838F & -838FC - Domestic
Catalog # 13-247-839F & -839FC - International

Model 851F (Large)
Catalog # 13-247-851F & -851FC - Domestic
Catalog # 13-247-852F & -852FC - International

104502 • 3/28/06

Serial Number________________________

Содержание Isotemp 800 Series

Страница 1: ...estic Catalog 13 247 826F 826FC International Model 838F Medium Catalog 13 247 838F 838FC Domestic Catalog 13 247 839F 839FC International Model 851F Large Catalog 13 247 851F 851FC Domestic Catalog 1...

Страница 2: ...or Resuming a Program 14 An Example Program 17 Menu Items 19 Units C F 20 Power Loss Options 21 Serial Communications 22 High Alarm 23 Open Sensor 23 Service 24 Replacing the Door Gasket 24 Accessing...

Страница 3: ...tile memory to preserve their contents Temperature readouts and control parameters are shown on 7 segment red light emitting diode LED displays Two additional LEDs indicate when heater power is being...

Страница 4: ...odel 825 1 5 minutes Model 838 1 5 minutes Model 851 3 5 minutes Average Rise Time to 325 C Model 825 60 minutes Model 838 40 minutes Model 851 40 minutes Air Exchanges Model 825 61 hr Model 838 41 hr...

Страница 5: ...king Fisher Isotemp Ovens 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 or representati...

Страница 6: ...feature a front panel mounted power switch which is a Switch combination power switch and circuit breaker eliminating the need for separate fusing The circuit breaker will interrupt power in the even...

Страница 7: ...oven heaters Each display field is discussed separately below Controls Heat Indicator Program Run Indicator Set Display Alarm Indicator Actual Display Figure 1 Display Fields Set Display In the Contr...

Страница 8: ...pressing the Up Arrow Key increases the oven set temperature as indicated on the Set Display During programming or setup used to step through menu options In Control mode pressing the Down Arrow Key d...

Страница 9: ...cover may become hot enough to melt burn the container at settings below the melting point of plastic Do not place items on the heater cover Wear insulated gloves Use tongs Never stand in front of an...

Страница 10: ...xecuted in the order entered step 1 step 2 step 3 etc A program may have a maximum of 24 steps or as few as two one must be an End Each program may consist of any of the four basic opera tions describ...

Страница 11: ...our basic operations Set Point Soak Jump Loop and End to produce a desired temperature cycle For each operation selected several options also must be specified To enter a ramp and soak program perform...

Страница 12: ...e of the two options for an End step To view the selections press either the Up or Down Arrow Key The End command signifies the final step in a program 9 If the final temperature is to be held indefin...

Страница 13: ...Min to indicate that the operator must select the number of additional minutes for which the current set tem perature will be held Use the Up or Down Arrow Key to set the Actual Display to the desired...

Страница 14: ...no further program steps are required press the Up or Down Arrow Key The yes return prompt will appear Press the Menu Key to return to Control mode operation 22 When program editing is complete the co...

Страница 15: ...achieved by the program To resume a stopped program perform the following steps 1 Press the Run Key The Run LED begins to flash and the display indicates 1 Prog 2 Press the Menu Key twice The resume...

Страница 16: ...completion of the ramp Rate Rate of change of temperature in C or F min for the ramp Jump Count If a Jump Loop is in progress indicates the number of times the loop has been repeated Step Current pro...

Страница 17: ...ays should show no Prog 3 Press the Up Arrow Key to indicate which pro gram to edit Press the Menu Key to edit pro gram 1 1 Prog 4 Press the Menu Key again to begin editing at step 1 1 Step 5 Use the...

Страница 18: ...Press the Menu Key to enter the ramp rate Programming Step 3 12 Press the Menu Key to continue programming Press the Menu Key again to initiate program ming the third step 3 StEP 13 Use Up or Down Arr...

Страница 19: ...suming a Program to verify prop er operation Menu Items The 800 Series Controller permits the operator to cus tomize some of the operating parameters available The following section describes those pa...

Страница 20: ...the ref erence temperature The displayed temperature is the result of algebraically adding the actual temperature to CAL value Thus if a CAL value of 3 degrees is being used a meas ured temperature o...

Страница 21: ...Key four times This will bypass the program edit mode temperature offset and units dis plays The Power Out menu should be dis played Cont Pout 2 Using the Up or Down Arrow keys the power out options...

Страница 22: ...Control Mode press the Menu Key repeatedly until the Set Display shows Log 2 Use the Up or Down Arrow Key to set the Actual display to Yes Press the Menu Key to enter the data log set up mode 3 The co...

Страница 23: ...alarm limit the alarm indicator will light and the Set Display will flash HI The reference point for the alarm is the set temperature Set Display Any change in the set temperature will cause a corresp...

Страница 24: ...Series ovens incorporate a durable fiberglass door gasket to minimize heat loss Should the gasket become defective or be damaged it may be replaced by following the procedures below 1 Set the power s...

Страница 25: ...Remove the screws securing the bezel from bot tom of oven 4 Grasp bezel and pull bottom outward Bezel will disengage from fascia Lay bezel aside on bench top Oven electronics are inside the bezel SER...

Страница 26: ...y reversing the steps above Replacing the Cooling Fan To replace a defective cooling fan proceed as follows 1 Complete the procedures discussed in Accessing the Electronics Compartment noting all caut...

Страница 27: ...the controller housing oven bottom by removing the eight screws which fasten it to the cabinet Two screws are located on each side of the oven and four on the bottom of the oven 6 Locate the two acce...

Страница 28: ...chematic diagram Observing polarity insert the thermocouple into the thermocouple connec tor 7 Generally reverse the steps above to reassem ble oven Replacing the Solid State Relay To replace a defect...

Страница 29: ...lay mounted on Bezel see Fig 3 3 Remove four lead wires from their push on ter minals 4 Remove two Phillips screws which mount the safety relay to the bezel 5 Lift out the safety relay 6 Generally rev...

Страница 30: ...place 8 Consult schematic at end of this manual Then generally reverse steps 1 through 3 to complete installation of new thermocouple and reassem ble oven Replacing the Door Hinges To replace a defec...

Страница 31: ...door cam may require adjustment To facilitate proper closing and sealing of door steps 1 through 6 may have to be performed concurrently NOTE See Warning above To adjust the door cam perform the follo...

Страница 32: ...than set temperature Defective thermocouple Replace thermocouple Defective heater Replace heater Defective solid state relay Refer to schematic and replace or safety relay relay Poor heater connection...

Страница 33: ...Fan Motor 120 V SPN 95788 MTR 240 V SPN 95789 Thermocouple Assembly SPN 95603 TC Door Handle SPN 104976 Shelf Fits All Models 13 247S Shelf Support Need Two per Shelf SPN 95635 Heater Assembly Model 8...

Страница 34: ...34 Schematic Diagram...

Страница 35: ...35...

Страница 36: ...ve reasonable assistance to the purchaser in obtaining from the respective manufacturer whatever adjustment is reasonable in the light of the manufacturer s own warranty b The Company shall be release...

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