WIKA CF2S - Manual (Page 38)

Operating Instructions Temperature Indicating Controller CF2S
V1.2 • 08/2004 - 38 -
11.2 Wiring connection examples
3-phase
Alarm unit (for
temperature alarm)
Heater
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 (for Electric furnace
temperature alarm) [Fig. 11.2-2]
• AC or DC is available to supply voltage 24V, however, do not confuse the polarity when DC is applied.
Thermocouple