WIKA CF1M - Manual (Page 18)

Operating Instructions Temperature Indicating Controller CF1M
V1. 1
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Option: Heater burnout alarm output
(1) This alarm is not available for
detecting current under phase control.
(2) Use the current transformer (CT) supplied
and pass one lead wire of heater circuit
into the hole of the CT.
(3) When wiring, keep CT wire away
from AC source and load wire to
avoid external interference.
[Fig. 7-2]
8. Specifications
8.1 Standard specifications
Mounting method : Flush
Setting
: Input system by using membrane sheet key
Display : Red LED display 4 digits, size, 8(H) x 4(W)mm
Accuracy (Setting and indicating)
Thermocouple : Within ±0.3% of input range full scale ±1 digit,
or 2°C (4°F) whichever is greater
RTD : Within ±0.2% of input range full scale ±1 digit
or 1°C (2°F) whichever is greater
Scaling range
K : 0 to 1370°C (0 to 2500°F)
J : 0 to 1000°C (0 to 1800°F)
E : 0 to 800°C (0 to 1500°F)
PL- : 0 to 1390°C (0 to 2500°F)
N : 0 to 1300°C (0 to 2300°F)
Pt100 : -199.9 to 850.0°C (-199.9 to 999.9°F), -200 to 850°C (-300 to 1500°F)
JPt100 : -199.9 to 500.0°C (-199.9 to 900.0°F), -200 to 500°C (-300 to 900°F)
Input sampling period: 0.25 seconds
Input
Thermocouple : K, J, E, PL- , N
External resistance, 100 Ω or less
When input burnout, Upscale
RTD : Pt100, JPt100 3-wire system
Allowable input lead wire resistance, 10Ω or less per wire
When input burnout, Upscale
Control output
Relay contact : 1a
Control capacity,
250Vac 3A (resistive load)
250Vac 1A (inductive load cosø=0.4)
Non-contact : For SSR drive
voltage 12 +2 ,
0
Vdc Maximum 40mA (short circuit protected)
Current : 4 to 20mAdc
Load resistance, maximum 500 Ω
Supply voltage : 100 to 240Vac, 50/60Hz, 24Vac/dc, 50/60Hz
Allowable voltage : In the case of 100 to 240Vac, 85 to 264Vac
fluctuation
In the case of 24Vac/dc, 20 to 28Vac/dc
CT input
terminal
Power source
Heater
CT
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