The Model 150A is a lightweight, hand-held meter for use with helium storage dewars on loading docks or in storage rooms, or in remote helium level operations where line power is unavailable. The Model 150A includes a 3.5 digit LCD display with readout accuracy of 0.5%, and a push-to-read switch that allows level measurements to made within seconds. The Model 150A is designed for use with AMI liquid helium level sensors up to 60" in active length.

Battery powered convenience

The unit is powered by a rechargeable, sealed lead-acid battery pack. The battery pack provides capacity for hundreds of readings between recharges. Also, a Model 150A with fully-charged batteries can be stored for up to a year at room temperature before battery recharging is required. The Model 150A is shipped with a battery charger.

View the Model 150A Manual (Technical Support page)

 
Specifications
Input power: Rechargeable lead-acid battery pack (included)
Sensor current: 75 mA
Linearity: ±0.5% of full scale
Absolute calibration: ±0.5% of full scale
Display: 3.5 in. digital LCD
Recorder output: 0-10 V standard (0-100 mV optional)
Dimensions: 6.25" high x 3.125" wide x 2.25" deep
Weight: 2.0 lbs. (with battery charger)
     
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