Gas Leakage detector for A1, A2L, A3
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This refrigerant gas detector is a unique solution using the latest MPS (Molecular Property Spectrometry) technology to indicate the presence of low GWP A1, A2L and A3 refrigerant gas providing both a continuos signal proportional to the gas concentration and the activation via relay for alarming once a prefixed (and settable) level is reached.
It combines all the advantages of MPS technology as in terms of long lifetime, no field calibration, built-in environmental compensation, no poisoning, wide temperature operating range and durability with a dedicated electronic board for easy interfacing the common control units thanks to the multiple outputs: Modbus, 2x Relays and 2x Analogue Output (ALL IN ONE).
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SENSOR PERFORMANCES | |||
Technology | Molecular Property Spectrometry by NevadaNano | ||
Gas detected | A1 R404A, R407C |
A2L R32, R454B, R454C |
A3 R290, R170, R600, R600a |
Response Time (T90) | <20 sec. | <15 sec. | <20 sec. |
Resolution | 1ppm | 0,1% LEL | 0,1% LEL |
Lifetime | 15+ years |
RANGE and ACCURACY | |||||
MLD Gas PN | Gas Type | Measuring Range | Accuracy (0-50 %LEL) guaranteed across full environmental range (ISO 10156) |
Accuracy @25%LEL guaranteed across full environmental range (ISO817/ASHRAE 34) |
Accuracy ≤25 %LEL @ 20 °C - 50 %RH (UL 60335-2-40) |
1 | -- | ||||
2 | R290 | 0-100% LEL | ± 6% LEL | ||
3 | R32 | 0-100% LEL | ± 3% LEL | ± 2.5% LEL | |
4 | R454B | 0-100% LEL | ± 5% LEL | ± 2.5% LEL | |
5 | R454C | 0-100% LEL | ± 5% LEL | ± 2.5% LEL | |
6 | R600 R600a |
0-100% LEL | ± 5% LEL |
OPERATING FEATURES | |
Signals Output |
Gas concentration, Temperature, Humidity, Pressure, Status, Prealarm, Alarm, Fault, Lifetime |
Measurament Output |
Digital: Modbus (RS-485) |
Visual Information |
Visual: 3x LEDs (Status / Alarm1 / Alarm2 / Fault) |
Supply Voltage |
12-24VDC |
Power Consumption |
35mA average - 50mA peak |
Operating Temperature |
-40° to +75°C |
Operating Humidity |
0 - 100% RH |
Operating Pressure |
80 to 120 kPa |
Protection grade |
IP65 |
Dimensions MLD-S4 |
128 x 89 x 37 mm |
Dimensions MLD-MN |
128 x 89 x 22 mm |
Certifications & Approvals |
CE, EMC, Rohs, IECEx, IEC60335-2-40, ATEX |
Via Magenta, 77/16A
20017 Rho (MI) - Italy
Phone +39 02 3340 0846
VAT: IT04126380155
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Via Magenta, 77/16A
Rho 20017, Italy
+39 02 3340 0846