Lincoln Series 1200 Manuel D’Utilisation

Impinger I -–1000 Series Service Manual - International

Temp. display

inaccurate, erratic, or

inoperative

Time/Temp. Display

Perform the power supply check, the thermistor

probe check, and then perform the time/temp.

simulator test. Refer to page 72 for instructions.

Remember, when using the time/temp. simulator,

remove all leads from the back of the time/temp.

display except the 3 power leads. After completion

of the test, and if re-installing time/temp. display

back in the oven, the dip switches must be reset for

oven operation, and the time/temp. display must be

recalibrated. If readings are not achieved, replace

display.

Perform all checks as in the above evaluation. If

the time check is okay, refer to the next section.

Conveyor Drive

(Stepper) Motor

Check to see if the conveyor drive (stepper) motor

is running. If motor is not running refer to

"Conveyor will not run" on page 50.

Magnet

Check to insure that the magnet (cemented to shaft

of conveyor drive (stepper) motor) has not been

damaged, or come loose from motor shaft. Replace

as needed.

Hall Effect Sensor

Check for any physical damage to Hall Effect

Sensor(mounted on conveyor drive(stepper)motor.)

Check all wiring and connections for damage.

Time Display

inaccurate, erratic or

inoperative

Conveyor Drive

(Stepper) Control

Check all connections for tightness or proper

location and check all wiring for visible damage.

Replace as needed. If there is still no time display,

wire in (temporarily) a new conveyor drive control.

If there is still no time display, reconnect original

conveyor drive control. Replace Hall Effect Sensor.