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Specifications
Operating Temperature:
-
Mfr. Part #:
VQ25B
Key Attributes
Model Number:
VQ25B
Product Description
Product Overview
The VQ25 Combustible Gas Detector Elements are designed for the detection of combustible gases in air, offering robust performance even in high concentration environments (up to 100%). These matched elements are particularly suitable for applications where exposure to flammable gases is likely. The VQ25 is also effective for detecting combustible vapors containing halogens and is generally unaffected by water vapor or carbon dioxide unless their concentrations impact flammability. With a recommended bridge circuit, the VQ25 provides a minimum sensitivity of 25 mV/1% n-butane.Product Attributes
- Brand: SGX Sensortech(IS) Ltd.
- Product Type: Combustible Gas Detector Elements
- Model Series: VQ25
- Marking: Serial number in red on detector, black on compensator. Red circular label on detector base.
- Sleeve Color: Black (Compensator), Red (Detector)
Technical Specifications
| Specification | Value | Notes |
|---|---|---|
| Element Type | Matched Pair | Used for combustible gas detection in air. Not generally suitable for methane. |
| Bridge Supply Voltage | 2.0 + 0.1 V | Continuous operation. |
| Bridge Power Consumption | 0.75 W max | |
| Minimum Sensitivity | 25 mV/1% n-butane | With recommended bridge circuit. |
| Linearity | Linear up to 1.5% n-butane | |
| Response Time | 3 seconds | To register 0.5% in a 1% concentration. Dependent on mounting type. |
| Trimming Resistor (R) | 39 to 120 | Supplied with elements, connected across compensator. |
| Outline Dimensions (Millimetres) | A: 11.05 0.25, B: 6.10 0.25, C: 3.56 0.13, D: 63.50 min, E: 1.02, F: 7.37 0.51, G: 8.20 max, H: 9.53, J: 1.52 | Nominal dimensions without limits. No bends in length J. |
| Mounting Arrangement | See page 3 | Can be under direct flow or diffusion conditions. |
| Recommended Mounting Dimensions (Millimetres) | AA: 19.05 max, AB: 9.53 0.13, AC: 8.33 0.13, AD: 8.20 min, AE: 19.05 max, AF: 9.53 0.13, AG: 8.20 min | |
| Filter Paper & Gauze | 60 mesh stainless steel gauze | Used in mounting arrangements. |
2411261432_Amphenol-VQ25B_C3659376.pdf
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