YJJ G4-C2H2 Infrared Acetylene Gas Sensor NDIR Concentration Measurement

Product Description:

G4-C2H2 Infrared Acetylene Gas Sensor NDIR Concentration Measurement

Features:

G4 infrared gas sensor is an intelligent miniature gas sensor designed based on the NDIR principle. It measures the concentration of gases by utilizing their absorption characteristics of specific infrared spectra. It has no dependence on oxygen and does not suffer from the poisoning phenomenon of catalytic sensors. It has a long lifespan, high accuracy, and stable performance. This sensor has two signal output interfaces: analog and digital. It can directly output the gas concentration value signals after linearization processing and temperature compensation, making it more convenient to use. Purpose

The G4 infrared gas sensor can measure gases such as methane, carbon dioxide and hydrocarbon combustibles, with a range up to 100% VOL.

This sensor complies with the requirements of "GB 15322 Flammable Gas Detector", "AQ 6211-2008 Non-dispersive Infrared Methane Sensor for Coal Mines" and "AQ 1052-2008 General Technical Conditions for Mine Carbon Dioxide Sensors", and can be used in hazardous environments such as industrial plants, traffic tunnels, energy, power, petroleum and petrochemical industries, coal mine tunnels, gas extraction, and more industrial environments for health and safety monitoring.

Working conditions of the G4 infrared gas sensor:

Operating temperature ------ (-40 to +70)℃;

Operating humidity ------ Up to 98% RH, no condensation;

Atmospheric pressure ------ 80 to 120 kPa; Characteristics

• High resolution, with a resolution of 0.01% for the 0-10% Vol range, and 0.1% for the 10%-100% Vol range.

• The measurement range can reach 0-100% VOL.

• Linear and temperature compensation data output.

• Digital and analog signal output modes.

• Working temperature range of -40℃ to 70℃.

• Long-term stability, easy calibration.

• No "poisoning" phenomenon of catalytic sensors.

• No oxygen dependence.

• Intrinsically safe explosion-proof.

Electrical parameters

Input voltage: 3.0 - 5.5 VDC

Working current

Average < 70 mA @ 3 VDC

Peak < 140 mA @ 3 VDC

Preheating time

3 minutes*

* It is recommended to preheat for more than 60 minutes before starting calibration.

Analog voltage output: 0.4 - 2.0 VDC (negative concentration output: 0.24 - 0.4 V, over-range output: 2.0 V - 2.4 V)

Digital signal output: TTL level

Warranty period

18 months*

* The following situations are not covered by the warranty: condensation, water ingress, dust ingress, drop, impact, welding, disassembly, corrosion, over-temperature use, removing the label, etc.

Application environment

Working temperature

-40℃ to 70℃ (methane and hydrocarbon gases)

0℃ to 50℃ (CO2)*

* The wide temperature application environment for CO2 (-40℃ to 70℃), special instructions should be provided during ordering

Working humidity

0% RH to 98% RH (no condensation water)*

* The accuracy of the sensor may be affected. It is recommended to perform pre-treatment for dust removal and water removal

Explosion-proof marking: Ex ia I Ma and Ex ia II C T4 Ga dual certification

Protection level: IP65 (with waterproof breathable film, *the waterproof breathable film may affect T90), waterproof breathable film can be selected during ordering

Specifications: