This series of gas detection transmitter use imported electrochemical sensors (combustible gas using catalytic type), this new gas detection transmitters have been developed with years of experience in the development and production of gas detections, and can be widely used in metallurgy, petroleum, chemical, coking, municipal, gas, sewage treatment and special industries, and apply for continuous monitoring of a variety of gas concentration in working environments. Transmitters use explosion-proof design, 4mA ~ 20mA standard signal or directly into the DCS system, this transmitter is high sensitivity, fast response, long life, short polarization time and so on. Our products have achieved the domestic similar product advanced level.
Technical Data:
| Detecting Gas | Combustible gas, CO, H2S, O2 |
| Sensor type | Catalytic or electrochemical gas sensor |
| Sampling | Natural diffusion |
| Working voltage | DC24V± 25% |
| Consumption | 2W/channel |
| Working type | Continuously working |
| Error | ≤ ± 5%F. S. |
| Response time (T90) | ≤ 30s (LEL) / ≤ 60s (toxic gas) |
| Temperature | -40~70 ceilsius degree (LEL) / -20~50 celsius degree (toxic gas) |
| Humidity | ≤ 95%RH (no condensation) |
| Explosion-proof grade | ExdIICT6 |
| Protection grade | IP55 |
| Working pressure | 86kPa~106kPa |
| Signal output | 4-20mA 2 wires or 3 wires |
| Connection screw size | G1/2" |
| Cable required | 3-line cable, ≥ 3 mm2 |
| Transforming distance | ≤ 1000m |
| Gas | Range | Resolution | Alarm point |
| CH4 | 0-100%LEL | 1%LEL | 25%LEL |
| C3H8 | 0-100%LEL | 1%LEL | 25%LEL |
| C2H2 | 0-100%LEL | 1%LEL | 25%LEL |
| CO | 0-1000ppm | 1ppm | 50ppm |
| H2S | 0-100ppm | 1ppm | 10ppm |
| H2 | 0-1000ppm | 1ppm | 35ppm |
| SO2 | 0-20ppm | 1ppm | 5ppm |
| NH3 | 0-100ppm | 1ppm | 35ppm |
| NH3 | 0-500ppm | 1ppm | 25ppm |
| NO | 0-250ppm | 1ppm | 35ppm |
| NO2 | 0-20ppm | 1ppm | 10ppm |
| CL2 | 0-20ppm | 1ppm | 2ppm |
| O3 | 0-20ppm | 1ppm | 2ppm |
| ETO | 0-20ppm | 1ppm | 10ppm |
| CO2 | 0-5000ppm | 1ppm | 1000ppm |
| HCN | 0-50ppm | 1ppm | 10ppm |
| O2 | 0-30%vol | 0.1%vol | low 18%vol high 23%vol |
1. Why do you choose our company?
We are trading company, we can help our clients to find any kinds of products in China. We are always looking for good manufacturer with good quality and good price for our clients.
2. How can you guanranty your quality?
EVery time we will inspect our factories first. This inspect will include the persons, the present products, their scale etc. If everything is ok, we will start to cooperate. During cooperation, we will go to the factories to test the products to guanranty the products has good quality. If it doesn't meet our requirement, the goods will be refused.
3. Do you have price advantage?
For us, the quality is our first consideration. And the second consideration is the price. We couldn't say we have the lower price, because of quality issue. We need to say we have the best price.
4. How long do you do the export business?
For our company, it starts in 2012. And for our sales persons, they have 8-10years experience to do the international business. They understand each step for the export and do good service for each of our clients.
