IRD 92 E

CO2 GAS LEAK DETECTOR

CO2 / R744

The IRD 92 E is a portable infrared leak detector for CO2 / R744, designed for leak testing by sniffing at atmospheric pressure.

In the same range:

For HFC, HFO and HC refrigerant gases and H2/N2 tracer gas (Nidron), the DXR 240 offers 3 sensitivity positions and a choice of 2 detection cells. For selective detection of H2/N2 tracer gas (Nidron), the DXH 240 offers 4 sensitivity positions and 2 detection modes, Detection and Track.

Accessories:

Verification at a specific CO2 leak rate can be carried out with the FCH 99M-PVA-R150 adjustable calibrated leak with built-in reservoir.

Selective sensor with high detection performance for CO2/R744 gas.
4-digit digital display giving an estimate of the change in CO2 concentration in the area.
Flexible shape-memory (gooseneck) probe.

2 detection modes:

Manual ZERO mode: readout of the CO2 concentration change from 10 to 9,999 “delta ppm”.
Automatic ZERO mode: detection of CO2 leaks with a minimum sensitivity of approx. 5 g/yr.

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Functions	Manual ZERO mode: readout of the CO2 concentration change. Automatic ZERO mode: CO2 leak detection.
Display	4-digit digital display with progressive audible signal.
Cell	NDIR infrared cell, with an infrared spectrum centred on CO2.
Detected gases	CO2 / R744.
Sensitivity	Manual ZERO mode: 10 to 9,999 “delta ppm”. Automatic ZERO mode: 5 g/yr.
Battery life	6–8 h
Power supply	Built-in rechargeable batteries. Charging time around 12 hours.
Delivered with	Supplied complete in a carrying case with mains charger and user manual. Protective rubber boot included.
Option	None

Usage tips

Setting the manual zero: the manual zero is set in an uncontaminated area, close to the potential leak area, and must be reset regularly if the zero drifts.

Effect of breathing: exhaled air contains about a hundred times more CO2 than ambient air, which is enough to cause a sharp rise in the detection signal. The probe must therefore be kept away from the operator’s breath.

CO2 accumulation: being heavier than air, CO2 accumulates in pits, trenches and at the bottom of cold rooms. A safety check of the area should therefore be carried out before any leak test.

Condensation: the NDIR sensor is sensitive to moisture, and cold pipework is often covered with condensation or frost. Contact between the probe tip and wet parts must therefore be avoided.