The NAFFCO series liquid level indicator is a simple manually operated device to determine the clean agent liquid level in vertically mounted agent storage containers.

Operation:

A magnet equipped float moves with the liquid level along the unit stem. Level readout is obtained by simply removing the protective cap and pulling out a calibrated tape until magnetic interlock with float is felt. With the tape in this position, the reading is obtained at the point where the tape emerges from the unit housing.

When the liquid level is determined, the reading is then located on a chart and corresponding clean agent weight is read. Accurate readings can be obtained over +40°F to -90°F (+4.4°C to 32.2°C) temperature range.