Changsha Purple Horn E-Commerce Co., Ltd.
| Operating Temperature | -5℃~+40℃ |
| Description | Gas Sensor RoHS |
| Mfr. Part # | VQ2B |
| Model Number | VQ2B |
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Product Specification
| Operating Temperature | -5℃~+40℃ | Description | Gas Sensor RoHS |
| Mfr. Part # | VQ2B | Model Number | VQ2B |
The VQ2 Combustible Gas Detector Elements are designed for the detection of combustible gases, particularly methane in air mixtures, with concentrations starting from 0.1%. These matched elements offer low power consumption, making them ideal for battery-operated systems. They are unaffected by water vapour or carbon dioxide and provide a minimum sensitivity of 15 mV/% methane when used with the recommended bridge circuit. The VQ2 elements are suitable for operation under direct flow or diffusion conditions.
| Specification | Value | Notes |
|---|---|---|
| Operation | Continuous | 1 |
| Bridge Supply | 2.0 + 0.1 V | |
| Bridge Power Consumption (at 2.0 V) | 0.48 W max | |
| Minimum Sensitivity | 15 mV/% methane | 2 |
| Linearity | Linear up to 3% methane | |
| Response Time (to register 1 1/4% in a 2 1/2% concentration) | 2 seconds | 2, 3 |
| Maximum Methane Concentration | 5 % | 4 |
| Ambient Temperature Range | -75 to +40 C | 7 |
| Bridge Zero Change (within temp. range) | 1.5 mV max | 7 |
| Shock Test | 250 g, 5 blows in each plane | |
| Vibration Test | 20 g, 24 cycles from 100 to 3200 Hz | |
| Outline Dimension A | 11.05 + 0.25 mm | |
| Outline Dimension B | 6.10 + 0.25 mm | |
| Outline Dimension C | 3.56 + 0.13 mm | |
| Outline Dimension D | 63.5 min mm | |
| Outline Dimension E | 1.02 mm | |
| Outline Dimension F | 7.37 + 0.51 mm | |
| Outline Dimension G | 8.20 max mm | |
| Outline Dimension H | 9.53 mm | |
| Outline Dimension J | 1.52 mm | No bends may be made in this length. |
| Mounting Arrangement AA | 19.05 max mm | |
| Mounting Arrangement AB | 9.53 + 0.13 mm | |
| Mounting Arrangement AC | 8.33 + 0.13 mm | |
| Mounting Arrangement AD | 8.20 min mm | |
| Mounting Arrangement AE | 19.05 max mm | |
| Mounting Arrangement AF | 9.53 + 0.13 mm | |
| Mounting Arrangement AG | 8.20 min mm |
Notes:
1. Operation may be under either direct flow or diffusion conditions in appropriate mountings.
2. With open-circuit conditions at the bridge output.
3. The response time is a function of the type of mounting used.
4. If the VQ2 is exposed to greater than 5% methane concentration, the calibration of the instrument should be checked.
6. The elements must be protected from certain organic and silicone vapours by suitable filtering, and caution should be exercised when operating in close proximity to hot, oily machinery.
7. The bridge zero shall not change by more than 1.5 mV for this temperature range.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
300~500
Ecer Certification：
Verified Supplier
Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa... Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa...
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