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Ningxia Maiya Sensor Technology
MaiYa MST-N7M NDIR SF6 sensor

MaiYa MST-N7M NDIR SF6 sensor

Product catalog summary

Overview: The MST-N7M N2O SF6 gas sensor is designed for environmental detection and monitoring of gas leaks, utilizing an on-line monitoring system. It specifically detects SF6 gas using the Non-dispersive Infrared (NDIR) principle.

Specifications:

Measuring Range: 0-1000 ppm
Linear Error: ±2% Full Scale (F.S.)
Response Time (T90): ≤25 seconds with waterproof breathable film
Resolution: 1 ppm
Repeatability: ≤±1% F.S.
Operating Temperature: -20℃ to 60℃
Storage Temperature: -40℃ to 85℃
Humidity Range: 0 to 95% Relative Humidity (RH)
Warm-up Time: 1 minute

Signal and Power:

Digital Signal: Modbus RTU 38400 bps
Analog Signal: 0.4 to 2V
Power Supply: 3.3 to 6V DC
Current: 45mA average, 180mA max
Power Dissipation: 0.23W average

Pin Functions:

V+: VCC+ 3.3 - 6V
GND: VCC-
Tx: Serial port transmitter, TTL level 0 – 2.5V
Rx: Serial port receiver, compatible with 1.8-5V input
DA: Analog output, 0.2V indicates preheat, 0.4-2V corresponds to 0-100% F.S., 2.2V indicates overrange

Additional Features: The sensor is noted for its long life and regular 7-series size, which facilitates ease of use.

Catalog excerpts

Environmental detection Non-dispersive Infrared(NDIR) Long life On-line monitoring system Regular 7-series size for ease of use Measuring range Linear error Response time(T90) ≤25s (with waterproof breathable film) Operating temp Storage temp Digital signal Analog signal Power Supply power dissipation 45mA (average value) 180mA (max value) 0.23W (average value) Serial port transmitter Serial port receiver Compatible with 1. 8-5 V input Analog output 0.2V indicates that the sensor is preheated 0.4-2V corresponds to 0-100% F.S. 2.2V

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MaiYa MST-N7M NDIR SF6 sensor

MaiYa MST-N7M NDIR SF6 sensor

Catalog excerpts

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