Bilge Switch Plug and Play Tank Calibration Customer Feedback
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TANK MONITORING:
TC-8000
TM-4000
TANK AND BATTERY MONITORING
TD-4000
FIRE ALARM SYSTEMS:
FR-8000
BILGE CONTROL:
BC-8000
BSW-1000
ALARM MONITORING:
AL-8000
NAV LIGHT MONITORING:
NV-8000
NV-2000
TOILET CONTROL:
SMF-001
STS-220
HOLDING TANK CONTROLLER:
ST-660
TIMERS:
SPT- 001
SDP- 003
INTERFACES:
NMEA-0813
IF-100
SM-420
SM-180
SENSORS:
SEN-100
FS-2A

Adapter SM-420
Boat gauges

The SM-420 adaptor has been designed to interface from any 4 to 20 milliamp tank sender unit to the Smart Switch Technologies HT-100 or HT-100/P Tank Control System.

Wiring Diagram:
Marine instrument
Calibration:
The tank calibration is preformed inside the HT-100 or HT-100/P therefore before starting ADJUST the tank sensor probe for the FULL 4 to 20 milliamp current swing. Calibration can now be done as per the manual for the TC-8000 or TM-4000 unit.
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Boat Monitoring | Marine Instruments
SM420
Adaptor