Specifications

Changing Temperature

Indication

Push “SCROLL” button once, “°C” will appear. This indi-

cates temperature measurement. (Contact Thermolyne if

control needs to be changed to °F.)

Setting the High Alarm

Temperature Over Temperature

Protection (OTP)

Push “SCROLL” button until “AL.SP” (Alarm Set point) ap-

pears. The lower display should indicate 1100°C.

Depress either the “UP” or “DOWN” button to select the

OTP value you desire. Thermolyne recommends that you

set the value either at the maximum operating tempera-

ture of the furnace or a value of 20 degrees above your

working temperature if you desire to provide protection for

your workload.

AUTOMATIC MODELS

Note

HIAL-HIGH ALARM (over temperature

protection - OTP). The controller is fit-

ted with a mechanical relay which is

de-energized in the alarm mode. This

relay, when de-energized, removes

power from the heating elements. If

the primary control circuit fails, the

OTP will control the furnace tempera-

ture at the preset value you have

entered. It does not shut off the fur-

nace but will maintain the chamber

temperature at that value.