** ALARM ** The EA101 three gauge adjustable alarm is designed to give an alarm output when the reading on any one of three gauges passes a predetermined fault level. The unit will switch on falling pressure or rising temperature for standard resistance gauges – eg: VDO. As long as the sensing unit is a variable resistance to ground, and the signal being measured is a variable DC voltage, this unit may be used to give an alarm output from any brand of gauge-sender combination. The alarm is given on Three twenty five turn potentiometers are fitted, allowing fine adjustment across the full scale for most known gauges.
Ratio Switch Settings
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Instruction Manual: Download PDF