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Table 4: Flame detection systems
Max. lead wire
Standard stable flame
Detector
Flame detector model no.
type
lengths
current on jack plug
UV detector
C7027A, C7035A, C7044A
< 100m
4µA (min)
C7061A, C7061C
14µA (max)
Flame rod
Flame rod or rectifying optical sensors,
< 15m
14µA (min)*
C7012A,G (UV) or IRD1020.1 (IR)
4µA (max)*
* When using a flame rod, the current on the flame jack plug is inverted. See also Fig 4-2.
Flame detector leads are colour coded. The blue lead wire must be connected to the F terminal (T23) and the
white lead wire to the G terminal (T24). The UV sensing tube is polarity sensitive. Reversing the lead wires
even momentarily will destroy the UV sensing tube.
3
HWLKS-E-M-2106-R1
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