Morrison Bros Adjustable Level Sensor with Alarm

This adjustable float activated simple switch device with alarm is used to monitor liquid level at a desired set point.

Application

• Level sensor in liquid storage tanks
• Activates audible alarm

Standard Features

Alarm Box

• Audible and visual indicators
• Self-powered by long-life replaceable lithium batteries
• Low battery visual indicator
• Audible alarm sounds 90 dB alarm at four feet away
• Corrosion-resistant and water-resistant housing for long life
• In compliance with UL 913 and CSA 157 intrinsic safety standards for Class I, Division 1 and 2, Group D hazardous location 

Sensor

•  Four sensor length ranges
• Fully adjustable within the sensor range length
• Installs into a 2” female threaded opening
• Normally open switch easily converted to normally closed operation

Construction Details

•  Alarm box - polycarbonate plastic
• Wires - Teflon® jacketed wires
• Floats - 316 stainless steel
• Tube - brass (924); 304 stainless steel (924S)
• Bushing - e-coated steel (924); 304 stainless steel (924S)

Electrical - Level Sensor

• 100 watt resistive load, 300VAC - 700mA max / 350VDC - 1.0A max, SPST

Approvals

• Florida DEP EQ-527 (918S), Florida DEP EQ-862 (924/924S)

Note: Alarm & Sensor are packaged separately.