SR560

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Dual Channel Alarm Unit for mA/V Signals

SR560 is designed for monitoring mA or V signals in the process industry.
The two channels are fully independent.
The SR560 is specially designed for reliable safety triggering without false alarms.

High configuration flexibility allows for adaptation to required alarm functions.

  • Two fully independent isolated channels
  • Current and voltage input
  • Reliable and interference free safety alarm without false alarms
  • High configuration flexibility with solder jumpers
  • Adjustable time delay, hysteresis and relay functions
  • Available for AC or DC power supply
  • DIN-rail mounting
  • Plug-in screw terminals

Technical Specification

No. of channels Two, independent selection of input signal
Input Voltage 0(0,2)-1 V, 0(1)-5 V, 0(2)-10 V
Input impedance 10 MΩ
Input Current 0(4)-20 mA (standard)
Input impedance 51 Ω
Maximum input level 200 % of input span
Output Relay 1 & 2 One per channel 1-pole switch over contact
Selectable High or Low alarm Jumpers on PCB (standard: High)
Adjustable alarm set-point Front 15-turn potentiometers / test connectors
Selectable alarm delay 0.4 s (standard) or 2 s, changeable on PCB
Adjustable hysteresis 0.35 % (standard) to 80 % with front 15-turn
Selectable normally active or passive function Jumpers on PCB (standard: normally active)
Operation temperature -20 to +60 °C / -4 to +140 °F
Galvanic isolation
AC versions
Input to relay outputs 3 700 VAC, 1 min
Input to power supply 3 700 VAC, 1 min
Relay outputs to power supply 3 700 VAC, 1 min
Between channels 1 500 VAC, 1 min
DC version
Input to relay outputs 1 500 VAC, 1 min
Input to power supply 1 500 VAC, 1 min
Relay outputs to power supply 1 500 VAC, 1 min
Between channels 1 500 VAC, 1 min
Power supply
AC versions 230 VAC, -15..+10 %, 45..75 Hz
115 VAC, -15..+10 %, 45..75 Hz
DC version 19 to 60 VDC
Typical accuracy Trip point ± 0.1 % of span
Connections Plug-in terminals Stranded, ≤ 2.5 mm2, AWG 14
Mounting Rail acc. to DIN EN 50022, 35 mm

Documentation