QM-JW1Gas sensor
Detailed Product Description
QM-JW1 Type Gas Sensor uses SnO2 material as impressible material. SnO2 material is most advanced in the world at present, and being usually in cosmicall production. When being in alkyl types gas, the ele-conductance is on the increase with increasing gas chroma.
| Features |
1. | High sensitivity for alkyl types gas (CH4,C4H10 ect.) |
2. | 2. Interferential ability for all gas besides hydrogen. |
3. | High sensitivity. |
4. | Fast to respond speed. |
5. | Long life-span, High stability and high reliability. |
Calefaction Voltage (VH) | AC or DC 5±0.2V |
Loop Voltage(VC) | Max. DC 24V |
Load Resistance(RL) | 2kΩ |
Resistance in clean air(Ra) | ≤2000KΩ |
Sensitivity(S=Ra/Rdg) | ≥4(methane 1000ppm) |
Resolving Rate(D=Rig/Rdg) | ≥3(methyl alcohol 1000ppm) |
Inductive Time | ≤10S |
Resumptive Time(tres) | ≤30S |
Power | ≤0.7W |
Test Range | 50-10000ppm |
Life-span | 5 Years |
| Operation method and cautions |
1. | When working with electric circuit and has not met gas tested, the ele-conductance is on the increase, then being stabilization after one minute, just it is used normally. In this change course, we can adopt overtime disposal . |
2. | It must be in voltage range when used, because the change of calefaction voltage can directly effect the capability . |
3. | The Voltage of load resistance can be per.80 of dispersion(Vdg-Va)(Inductive Time) when sensor meets the hydrogen of 500ppm in 10 seconds. The voltage of load resistance can be per.80 of dispersion(Vdg-Va) (Rdsumptive Time) when sensor leave the hydrogen of 500ppm in 30 seconds. |
4. | Symbol specification Resistance in tested gas Rdg Voltage in tested gas Vdg Resistance in tested gas Rig Voltage in tested gas Vig Relation of Rdg and Vdg Rdg=Rl(Vc/Vdg-1) Relation of Rig and Vig Rig=Rl(Vc/Vig-1) |
5. | Load resistance can be changed properly if require, the change will not effect the sensitivity. |
6. | Condition Temp.:-15~35?C Relative Humidity: 45~75%RH Amospheric Pessure:80~106Kpa |
7. | When used in precision instrument, sensor should carry on the warm humidity to compensate, because the change of warm humidity can effect the resistance.The best way for the following just adopt Thermal resistor. |
8. | Avoid to be put in caustic gas and oil, and jammed by dust for stainless steel network of the explosion-proof when used chronically. |
9. | Six foot positions of componet can be matched and used with senven corners of electron seat. |
QM-JW1Gas sensor
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Company Info
Ningbo Breeze Imp.& Exp. Corp., Ltd.
[China (Mainland)]
[Verified Member]
City: Ningbo
Province/State: Zhejiang
Country/Region : China (Mainland)
Business Type:Manufacturer, Agent, Distributor/Wholesaler
Online Postings: Products