The QLA-100 Liquid Nitrogen Low Level Alarm consists of a level sensor, monitor /alarm unit and a low output voltage power supply unit.
The monitor /alarm unit continuously monitors the signal from the level sensor and houses the audible and visual alarms. It can be fitted to the body, lid, neck or carrying handle of a liquid nitrogen container or can be mounted on a nearby wall or surface. The unit is supplied fitted with ‘Velcro’ pads but can be secured equally well to a solid surface with screws.
The compact power supply unit is fully enclosed in a robust, moulded case. It provides a low voltage output (15V d.c.) through an interconnecting cable to the monitor /alarm unit.