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4
Main PCB Connection Detail.
2.5 Sensitivity Adjustment
The sensitivity of the rain sensor has been pre-set at the factory and does not normally require further
adjustment.
Notes.
SE Controls
Lancaster House,
Wellington Crescent,
Fradley Park,
Lichfield,
Staffs. WS13 8RZ
Tel 01543 443060
Signal
Detail
NO
Normally open contact
Volt free changeover relay
CM
Common contact
NC
Normally closed contact
VA
24VDC connection
Also suitable for 24VDC power if
desired
VB
0VDC connection
HT
Heater enable link
Link together to enable the
heater circuirty
HT
Heater enable link