Installation Note
Temperature & Environment Monitoring...
Made Easy!
Tank Level Sensors
AVTECH
AVTECH’s Fuel Tank Level Sensor
monitors the rise and fall of fuel or other harsh liquids
in a container, while
AVTECH’s Water Tank Level Sensor
monitors the rise and fall of
water in a container. The float switches and control weights are composed of chemically-
resistant polypropylene; the 16' cables are coated with rugged PVC. Because these sensors
have a dual-point switch and differential height between switch states, you can use just one
sensor to monitor two levels (high and low).
Control
Weight
Face
Fuel Tank Level
Sensor
Float
Switch
Control
Weight
Face
Float
Switch
Water Tank Level
Sensor
Tank Level Sensor Package Contents
•
One (1) Fuel Tank Level Sensor or Water Tank Level Sensor
•
One (1) 25' speaker cable
Tank Level Sensor Features
Switch States
AVTECH offers normally closed (NC) and normally open (NO) versions of the Water Tank
and Fuel Tank Level Sensors.
The “normal” state for these sensors is the float switch face in the downward position,
meaning low or no liquid in the tank. In the NO type, down = open. In the NC type, down
= closed.
Tank Level Sensor Type
CLOSED means...
OPEN means...
Normally Closed (NC)
RMA-FTL1-SEN (Fuel)
RMA-WTL1-SEN (Water)
the float switch face is DOWN
the float switch face is UP
Normally Open (NO)
RMA-FTL2-SEN (Fuel)
RMA-WTL2-SEN (Water)
the float switch face is UP
the float switch face is DOWN
