The LPT-A-VLT Ammonia Vent Line Transmitter is designed for continuous monitoring of ammonia levels in the vent line of refrigeration systems. More specifically, it is designed for the detection of equipment failure in ammonia plant vent stack applications. Using the 3/4” cast steel coupler, it can be mounted indoors on the ammonia vent relief stack above the pressure relief valve or mounted outside on the relief header above the roofline. It can be configured to alarm at user specified concentration levels and send an analog signal to the controller or PLC to activate the emergency ventilation system or shut down the equipment depending on the level of alarm.
LCD display (with user selectable function)
1 dry contact relay, 30 volt 2 amp maximum
Internal audible alarm
Linear 4 - 20 mA or 0 - 10 volt output signal
3-wire VDC or 4-wire VAC power
24 volt DC or AC power (nominal)
Standard water / dust tight, corrosion resistant enclosure (drip proof) with splash guard; pending IP54 rating.
Optional display heater for cold environment applications
Thermal resetting fuses
RoHS compliant circuit board
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