The IDA2 Dual Alarm is an auxiliary powered instrument which accepts an analogue input of either mA or volts and generates 2 alarm set points with changeover contacts that can switch 240VAC at 5 amps resistive. There is a non-isolated retransmission of the input signal and a loop supply for the direct connection of 2 wire transmitters. The trip points, dead band and analogue output are adjustable from the front panel. Each output relay has LED status indication on the front panel and can be set to operate as failsafe high (relay de-energises when input exceeds set point) or failsafe low (relay de-energises when set point exceeds input).
24VDC @ 30mA loop supply
Power supplies of 120/240VAC, 24VAC or 9 to 36VDC are available
Output relays have form C contacts switching 240Vac @ 5A into resistive loads
Relay configuration and LED status indication set by dip switch
Set point and dead band easily adjustable by 15 turn front panel potentiometers
Set point adjustable 0-100% of span
Dead band adjustable 0-99% of span
50Ω input impedance on current signals
1mΩ input impedance on voltage signals
4 to 20mA or 0 to 10V analogue re-transmission output available as standard
Ranges of inputs and outputs are available on request from 0-50mA to 0-200VDC
Din rail or gear plate mounting
Size; W: 55mm, H: 75mm, D: 110mm
Operating temperature range, -20°C to +85°C
Low cost, high performance solution
WP: weatherproof enclosure
1SP: single alarm
Model number configured as: Model/input signal/display units/power supply/options
Sample number: IDA2/4-20mA/S1S3/240VAC/WP
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