Owner manual

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5.4.3 Alarm Relay
The Alarm Relay is an output that is configured by the operator. Refer to Section 7 – General
Operation for specific instructions on how to activate the Alarm Relay. The Alarm Relay Load must
not exceed 1 Amp at rated voltage. Connect the Alarm load to the J2 terminal block labeled 'ALARM
RELAY OUT.' Use 22 AWG wire size. Make three connections: Neutral, Earth (ground) and Hot as
labeled.
5.5 Low Voltage Input Connections
There are two types of Low Voltage inputs: Current (e.g., 4-20mA) and Dry Contact. The Low Voltage
Input connection block is labeled J4 'INPUT' (refer to Figure 5). It contains three pairs of inputs:
Current 1, Alarm and Level.
Figure 5 – Low Voltage Input
THE DRY CONTACT INPUTS ARE SELF-POWERED. SUPPLY ONLY A MECHANICAL SWITCH
CLOSURE TO ACTIVATE. DO NOT ATTACH EXTERNALLY POWERED CIRCUITRY.
THE WIRE USED TO CONNECT LOW VOLTAGE INPUTS, AND SERIAL COMMUNICATIONS SHOULD
BE RUN IN A CONDUIT SEPARATE FROM THE HIGH VOLTAGE POWER. DO NOT COMBINE HIGH
VOLTAGE (I.E., GREATER THAN 100VAC) LINES AND LOW VOLTAGE (I.E., LESS THAN 32VDC)
LINES IN A COMMON CONDUIT! FAILURE TO COMPLY WILL RESULT IN ELECTRICAL
INTERFERENCE THAT MAY RESULT IN IMPROPER (AND POSSIBLY UNSAFE) OPERATION.