QUALITROL AKM345 GEN3 OTIWTI
TM
Instruction Manual
40-08847-00-Rev001
www.qualitrolcorp.com
Page 24 of 34
6.2
Adjustable Differential (option)
An option on the AKM345 GEN3 is to have adjustable switching differentials.
The procedure for adjusting the switching differential is as follows:
Step 1)
Adjust the alarm set point as described above.
Step 2)
Adjust the multi-turn adjusting screw located beneath the switch scale plate fully clockwise. At this
point the differential will be set at 5°C. (When turned fully counterclockwise the differential is set at
25°C).
Step 3)
Pull down the test lever (located on the right-hand side of the switch stack) slowly to verify correct
alarm and differential setting. For example, if the alarm is set at 50°C and the adjusting screw is set
fully anti-clockwise, the switch will energize at 50°C on rising temperature. It will de-energize on
lowering temperature at 25°C.
NOTE:
never force the test lever upwards
Step 4)
Fine-tune the differential setting by gradually turning the adjusting screw.
