User Manual

Operating Instructions Temperature Indicating Controller CF1H
V 1.2
•
01/2007 - 61 -
3-phase
*
Electro-
magnetic
switch
Alarm unit
Heater
Thermocouple
Electric furnace
[Fig. 11.2-1]
• To prevent the unit from harmful effects of unexpected level noise, it is recommended that
a surge absorber be installed between the electromagnetic switch coils.
Single-phase
Alarm unit
24V
SSR
CT
Heater
Thermocouple
Electric furnace
[Fig. 11.2-2]
AC or DC is available to supply voltage 24 V, however, do not confuse the polarity
when DC is applied.