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Product image RDS R32 & R454 A/B/C

RDS R32 & R454 A/B/C

The Senseair Refrigerant Detection System R32 & R454 A/B/C is a leak detection sensor module for HVAC applications using the mildly flammable, low GWP, A2L refrigerant R32 as well as R454 A/B/C.

A protective housing, with a high-quality gas diffusion vent, protects the sensor element from dust and condense water droplets. Thanks to the built-in heating element, the Senseair RDS can operate in cold environments.

Defining attributes

  • Complies with:
  • UL 60335-2-40 ed.4
  • IEC 60335-2-40 ed.7
  • Immunity to poisoning​
  • High accuracy
  • High resolution
  • Fast response time
  • -40 – 70 °C operating temperature
  • > 15 years expected lifetime
  • Maintenance free
  • Optional voltage variations (24V, 12V, 5V)

Using Modbus protocol, the measured data can digitally be transmitted to the control system.

A digital output signal is activated whenever the measured gas concentration reaches a configurable threshold. The output can alternatively be configured as a digital PWM signal or an analogue linear output reflecting the measured gas concentration.

Article number 009-3-0007 24V
Operating principle Non-dispersive infrared (NDIR)
Measured gas R32, R454A, R454B, R454C
Measurement range 0–50 LFL
Accuracy ±5% LFL
Operating range RH <95 % RH
Operation range °C -40 - 70 °C
Warm-up time TBA
Response time <30 sec
Power supply DC
Peak current
Average current TBA
Communication I2C, UART
Outputs TBA
Certified IP 67
Compliance IEC 60335-2-40 Ed.7, UL 60335-2-40 Ed.4
Maintenance Maintenance free
Life expectancy >15 years
Dimensions 112.6 x 65.3 x 40.2 mm (L x W x H)
Weight TBA
Storage conditions -40–85°C
Article number Product Description
009-3-0010 24V RDS R290 Robust and flexible refrigerant detection for R32 & R454 A/B/C
009-3-0011 12V RDS R290 The Senseair Refrigerant Detection System configured for R290.
009-3-0012 5V RDS R290 The Senseair Refrigerant Detection System configured for R290.
009-3-0007 24V RDS R32 & R454 A/B/C The Senseair Refrigerant Detection System configured for R32 & R454 A/B/C.
009-3-0008 12V RDS R32 & R454 A/B/C The Senseair Refrigerant Detection System configured for R32 & R454 A/B/C.
009-3-0009 5V RDS R32 & R454 A/B/C The Senseair Refrigerant Detection System configured for R32 & R454 A/B/C.

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