Changsha Purple Horn E-Commerce Co., Ltd.
| Operating Temperature | - |
| Description | Gas Sensor RoHS |
| Mfr. Part # | VQ1B |
| Model Number | VQ1B |
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Product Specification
| Operating Temperature | - | Description | Gas Sensor RoHS |
| Mfr. Part # | VQ1B | Model Number | VQ1B |
The VQ1 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 reliable performance with no interference from water vapour or carbon dioxide. When used with the recommended bridge circuit and mounting arrangement, they provide a minimum sensitivity of 20 mV/% methane. The elements are suitable for continuous operation under direct flow or diffusion conditions and are robust, having passed shock tests of 250 g and vibration tests of 20 g. They are supplied as a matched pair with a trimming resistor for optimal performance.
| Specification | Value | Notes |
|---|---|---|
| Operation | Continuous | May be under direct flow or diffusion conditions |
| Bridge Supply | 2.0 + 0.1 V | |
| Bridge Power Consumption | 0.75 W max | |
| Minimum Sensitivity | 20 mV/% methane | With open-circuit conditions at bridge output |
| Linearity | Linear up to 3% methane | |
| Response Time | 2 seconds | To register 1 1/4% in a 2 1/2% concentration; function of mounting type |
| Maximum Methane Concentration | 10 % | Calibration check recommended if exposed to >5% methane |
| Trimming Resistor (R) | 39 - 120 | Supplied with matched pair; connected across compensator element |
| Shock Test | 250 g, 5 blows in each plane | |
| Vibration Test | 20 g, 24 cycles from 100 to 3200 Hz | |
| Mounting | See page 2 | |
| Outline | See page 2 | |
| Filter Arrangement | 60 Mesh Stainless Steel Gauze, Filter Paper | Flow Rate: 500 cm/min |
Outline Dimensions (Nominal):
| Ref | Inches | Millimetres |
|---|---|---|
| A | 0.435 + 0.010 | 11.05 + 0.25 |
| B | 0.240 + 0.010 | 6.10 + 0.25 |
| C | 0.140 + 0.005 | 3.56 + 0.13 |
| D | 2.500 min | 63.5 min |
| E | 0.040 | 1.02 |
| F | 0.230 + 0.020 | 5.84 + 0.51 |
| G | 0.323 max | 8.20 max |
| H | 0.375 | 9.53 |
| J | 0.060 | 1.52 |
| AA | 0.750 max | 19.05 max |
| AB | 0.375 + 0.005 | 9.53 + 0.13 |
| AC | 0.328 + 0.005 | 8.33 + 0.13 |
| AD | 0.323 min | 8.20 min |
| AE | 0.750 max | 19.05 max |
| AF | 0.375 + 0.005 | 9.53 + 0.13 |
| AG | 0.323 min | 8.20 min |
Note: No bends may be made in lead length J. Millimetre dimensions derived from inches.
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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