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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

Fast response time
High accuracy
Wide temperature range
Maintenance-free
Compliant with IEC / UL 60335-2-40
Factory calibrated
Long term stability
Long lifetime
Immune to poisoning
Based on LED light source

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
Operating principle	Non-dispersive infrared (NDIR)
Measured gas	R32, R454 A/B/C
Measurement range	0-50% LFL
Accuracy	±2.5% LFL
Operation range °C	-40 - 70 °C
Response time	<30s
Power supply	5 VDC/12 VDC/24 VAC/DC
Communication	Modbus over RS-485
Outputs	Digital signal (High/Low or PWM) or Analogue voltage or Analogue current
Compliance	IEC 60335-2-40 Ed.7, UL 60335-2-40 Ed.4
Maintenance	Maintenance-free
Life expectancy	>15 years
Dimensions	113 x 65 x 40 mm (L x W x H)
Storage conditions	-40 - 85 °C

Disclaimer : Please refer to product specification for the complete technical details.

Article number	Product	Description
009-3-0007	RDS R32 & R454 A/B/C	The Senseair Refrigerant Detection System 24V configured for R32 & R454 A/B/C.
009-3-0008	RDS R32 & R454 A/B/C	The Senseair Refrigerant Detection System 12V configured for R32 & R454 A/B/C.
009-3-0009	RDS R32 & R454 A/B/C	The Senseair Refrigerant Detection System 5V configured for R32 & R454 A/B/C.
009-3-0010	RDS R290	The Senseair Refrigerant Detection System 24V configured for R290.
009-3-0011	RDS R290	The Senseair Refrigerant Detection System 12V configured for R290.
009-3-0012	RDS R290	The Senseair Refrigerant Detection System 5V configured for R290.