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Monitoring of 2nd stage pressure regulators for medical gases

  • 5 digital alarm inputs ON/ OFF (pressure switches) with the following configuration:
    • Low/ High alarm pressure: O2, Med. Air and Low Vacuum or Evac. Air, CO2 and
    • Low Vacuum
  • Alarm notification by 5 red LEDs
  • Acknowledge button for acoustic sound with alarm recovery function setting by a dip-switch (max. 15 min)
  • Test button for acoustic and visual periodic check
  • Programming jumper for inputs operation N.O. or N.C.
  • Local network interface with protocol SDAMNet Plus or ModBus (option)
  • Network address programming by a dip-switch
  • Auxiliary output switch for external cumulative alarm indicators
  • Auxiliary output switch for external hooters
  • 5 independent outputs reproducing the inputs status
  • Visual and acoustic indications about alarm status in accordance with European standard ISO 7396-1 and EN 60601-1-8

Technical Specs


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Power supply
230 Vac 50/60 Hz., Pmax. 5 VA, fuse 0.5 A
Visual indications
Power ON: LED Ø 5 mm, green
Alarm status: LED Ø 5 mm, red high efficiency
Alarm sound
Piezoelectric buzzer 85 dB @ 1 m
5 isolated inputs until 2.500 V
Power supply: internal 12 Vdc/ external 9-24 Vdc
Configuration: N.O./ N.C. selectable
Compatibility: traditional switches and solid-state contacts

Repeater outputs
5 isolated outputs until 2.500 V type transistor source
V. max.:28 Vdc, I max.: 30 mA
Logic: N.C. (open=input in alarm)
Configuration: positive common

Output signals
Cumulative alarm – open by one or more alarms (N.C. operation)
External hooter – follows the unit acoustic signal
(See Repeater outputs for electrical characteristics)

Plastic 6 modules DIN rail (EN 60715) in accordance with DIN 43380, PVC, dim. 106x90x(h)58 mm, IP34
Local network interface (option)
Isolated bidirectional RS485 protocol SDAMNet Plus or ModBus
380 g
Operating temperature
-10…50 °C
Reference standards and directives
93/42/EEC, 2014/30/EU EMC, 2014/35/EU LVD, EN60601-1,
ISO 7396-1, EN 60601-1-8, EN61000-6-1, EN61000-6-3, RoHs 2011/65/EU

Typical Applications

Alarm signaling unit for
gas distribution pipeline

CE 0425
Compliant with 93/42/EEC
Medical Devices Directive - Class IIb


Power supply 230VacAcoustic alarm Visual alarm   



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Documents download

Download PDF Data sheet