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OPERATION  

6.1 

Power  Supply:

  The  power  supply  must  be  properly  grounded  (earthed)  and 

correctly sized to match the unit data plate rating.  The supply voltage must match 
the data plate voltage within 10%.  If supplied with a detachable cord set, plug the 
female end into the inlet on the unit and the male plug into the supply.  Assure that 
units requiring a fuse have a fuse installed.   

6.2

 

Push  the  power  switch  to  the  ON  position  and  turn  the  Over  Temperature 
Thermostat  to  its  maximum  position,  clockwise  so  it  will  not  interrupt  the  setting  of 
the Main Temperature control. 

6.3

 

Place the reference thermometer through the exhaust port on top of the unit; a clip is 
provided with your accessory package.  See 

Figure 3 

on the following page. 

6.4 

Setting  Main  Temperature:

  The  operating  range  for  this  oven  is  ambient  room 

tempe 5

C to 200

C.  To set the Main Temperature Controller turn the knob 

to  the  desired  oven  temperature,  using  the  graduated  dial  as  a  reference  guide.  
Allow  one  hour  for the temperature to stabilize.  Using the reference thermometer, 
verify the oven temperature; if it is not at the desired value, turn the control knob up 
or  down  as  needed.    Allow  the  temperature  to  re-stabilize,  continuing  the  process 
until the exact desired temperature is achieved. 

Note: Slight vapor or smoke may occur in the initial heat-up.  This is a normal 
occurrence  when  the  oven  is  first  brought  up  to  temperature  and  protective 
coatings on the element become hot.

 

6.5 

Setting Over Temperature:

 As stated in earlier, the Thermostat should be set to its 

maximum  position.  Now  turn  the  control  knob  counterclockwise  just  until  the 
OVERTEMPERATURE  ACTIVATED  light  comes  on.    Next,  slowly  turn  the  control 
knob clockwise just until the light goes off.  Then turn the control knob clockwise two 
(2)  minor  scale  divisions  past  the  point  where  the  light  went  out.    The  Over 
Temperature Thermostat should now be set at approximately 10

C above the Main 

Temperature set point. Note that it is not recommended that the unit be allowed to 
operate  using  the  Over  Temperature  Thermostat  as  the  temperature  controller  for 
an  extended  period  of  time.    See  the  Troubleshooting  section  if  the  Thermostat  is 
activated. 

Section 

Содержание 1321F

Страница 1: ...1324G 1325F 1326 1327F INSTALLATION AND OPERATION MANUAL 03 13 4861659 Sheldon Manufacturing Inc P O Box 627 Cornelius Oregon 97113 EMAIL tech Shellab com INTERNET http www Shellab com Shellab 1 800...

Страница 2: ...8 0 TROUBLESHOOTING SECTION 9 0 PARTS LIST UNIT SPECIFICATIONS WIRE DIAGRAM This unit is a special purpose oven for professional industrial or educational use where the preparation or testing of mate...

Страница 3: ...freight bill any damage found and enter your claim on the form supplied by the carrier 1 2 Inspect for concealed loss or damage on the unit itself both interior and exterior If any the carrier will a...

Страница 4: ...that you should consult your manual for further description or discussion of a control or user item 2 2 Indicates AC Power 2 3 Indicates Adjustable Temperature 2 4 Indicates Manual Control 2 4 Indicat...

Страница 5: ...truct free airflow 3 3 Lifting Handling These units are heavy and care should be taken to use appropriate lifting devices that are sufficiently rated for these loads Units should only be lifted from t...

Страница 6: ...6 3 6 Shelves Place shelves in the chamber at desired position See Figure 1 Figure 1...

Страница 7: ...ycle on and off as the elements maintain the temperature selected 4 4 Over Temperature Thermostat Marked SET OVERTEMPERATURE this control is completely independent of the Main Temperature control and...

Страница 8: ...o not place explosive combustible or flammable materials into the chamber 5 4 Some of the out gassed byproducts may be hazardous or unpleasant to operating personnel If this is the case the exhausts s...

Страница 9: ...emperature to stabilize Using the reference thermometer verify the oven temperature if it is not at the desired value turn the control knob up or down as needed Allow the temperature to re stabilize c...

Страница 10: ...10 Figure 3...

Страница 11: ...that will harm coatings WARNING Never clean the unit with alcohol or flammable cleaners with the unit connected to the electrical supply Always disconnect the unit from the electrical service when cle...

Страница 12: ...with the controller 2 check amperage amperage should be virtually at maximum rated data plate amperage 3 is the Thermostat set high enough for diagnostics should be fully clockwise with the pilot ligh...

Страница 13: ...0863 Motor 1321F 4880527 4880528 On Off I O Switch 7850570 7850570 Over Temperature Thermostat 1750615 1750648 Pilot Light green 4650554 4650554 Pilot Light red 4650553 4650553 Shelf Clips 1250511 150...

Страница 14: ...f Clips 1250511 1250511 Shelf 5500629 5500629 Thermometer Clip 5080865 5080865 Thermometer 8200509 8200509 Fan Motor 1325F 4880527 4880528 Fan Blade 3 1325F 2600545 2600545 Fan Blade 4 75 1325F 260050...

Страница 15: ...f Clips 1250511 1250511 Shelf 5130714 5130714 Thermometer Clip 5080865 5080865 Thermometer 8200509 8200509 Fan Motor 1325F 4880527 4880528 Fan Blade 3 1325F 2600545 2600545 Fan Blade 4 75 1325F 260050...

Страница 16: ...HITE HT TAN ULTRA HT TAN ULTRA HT BLACK HT BLACK HT BLACK HT WHITE HT WHITE HT BLACK BLACK BLACK BLACK POWER INLET 4200505 GREEN LIGHTED POWER SWITCH 7850570 TEMPERATURE CONTROL 1750863 OTL 1750615 HE...

Страница 17: ...ULTRA HT BLACK HT BLACK HT BLACK HT WHITE HT WHITE HT BLACK BLACK BLACK BLACK POWER INLET 4200505 GREEN LIGHTED POWER SWITCH 7850570 TEMPERATURE CONTROL 1750863 HEATING INDICATOR 4450554 OTL INDICATOR...

Страница 18: ...N ULTRA HT TAN ULTRA HT BLACK HT BLACK HT BLACK HT WHITE HT WHITE HT BLACK BLACK BLACK BLACK POWER INLET 4200505 GREEN LIGHTED POWER SWITCH 7850570 TEMPERATURE CONTROL 1750863 OTL 1750615 HEATING INDI...

Страница 19: ...ULTRA HT BLACK HT BLACK HT BLACK HT WHITE HT WHITE HT BLACK BLACK BLACK BLACK POWER INLET 4200505 GREEN LIGHTED POWER SWITCH 7850570 TEMPERATURE CONTROL 1750863 HEATING INDICATOR 4450554 OTL INDICATOR...

Страница 20: ...HITE HT TAN ULTRA HT TAN ULTRA HT BLACK HT BLACK HT BLACK HT WHITE HT WHITE HT BLACK BLACK BLACK BLACK POWER INLET 4200505 GREEN LIGHTED POWER SWITCH 7850570 TEMPERATURE CONTROL 1750863 OTL 1750615 HE...

Страница 21: ...RA HT TAN ULTRA HT BLACK HT BLACK HT BLACK HT WHITE HT WHITE HT BLACK BLACK BLACK BLACK POWER INLET 4200505 GREEN LIGHTED POWER SWITCH 7850570 TEMPERATURE CONTROL 1750863 HEATING INDICATOR 4450554 OTL...

Страница 22: ...N ULTRA HT TAN ULTRA HT BLACK HT BLACK HT BLACK HT WHITE HT WHITE HT BLACK BLACK BLACK BLACK POWER INLET 4200505 GREEN LIGHTED POWER SWITCH 7850570 TEMPERATURE CONTROL 1750863 OTL 1750615 HEATING INDI...

Страница 23: ...TRA HT BLACK HT BLACK HT BLACK HT WHITE HT WHITE HT BLACK BLACK BLACK BLACK POWER INLET 4200505 GREEN LIGHTED POWER SWITCH 7850570 TEMPERATURE CONTROL 1750863 HEATING INDICATOR 4450554 OTL INDICATOR 4...

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