Fixed Gas Detector (Suction Type)
PD-12
Features
- Small and lightweight with concentration and alarm display
- Extractive type with hydrogen explosion proof (Ex d IIB + H2 T4X)
- Detecting decreased flow rate function except PD-12C (option)
- Environmental friendly product
- Water and dust-proof construction (Degree of protection: IP65)
Specifications
| Model | PD-12A | PD-12B | PD-12C |
| Detection Principle | Hot wire semiconductor | Catalytic combustion | Thermal conductivity |
| Gas Detected | As per specifications | ||
| Sampling Method | As per specifications | ||
| Suction Flow | Over 0.5L/min | ||
| Detection Range | As per specifications | ||
| Alarm Set Value | As per specifications | ||
| Alarm Accuracy | Combustible gas: ±25% of alarm set value under identical conditions Toxic gas: ±30% of alarm set value under identical conditions |
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| Alarm Delay | Combustible gas: Within 30 seconds with 1.6 times of alarm set conditions Toxic gas: Within 60 seconds with 1.6 times of alarm set concentration |
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| Alarms | Gas alarm: Red LED lamp flashes Trouble alarm: Yellow LED lamp flashes (sensor disconnection, sensor zero drop,power supply voltage error, etc.) |
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| Display | Four-digit digital LED display | ||
| Output | Gas concentration analog signal ・4-20mADC (common to the negative side of power supply) Gas alarm contact or failure contact*1 (one stage only) ・1a no-voltage contact output, Non-latching ・Rated load: 0.5A at 250VAC or 0.5A at 30VDC (resistance load) |
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| Operation | At 4 points of magnetic switches | ||
| Explosion-proof | II 2G Ex d IIB + H2 T4 Gb (ATEX)*2
Ex d IIB + H2 T4 X (TIIS) |
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| Degree of Protection | IP65 | ||
| Applicable Cable | Cable outer diameter: 10.5mm to 14.5mm 6-conductor shielded cable: CVV-S 1.25mm2 or 2.0mm2 |
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| Operating Temperature/Humidity*3 |
-10 to +50 °C 10 to 90 %RH (0 to 50 °C) |
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| Power Supply | 24 VDC (±20%) | ||
| Power Consumption | 7.5W max. | ||
| Dimensions | W133 x H260 x D132 mm (excluding protrusions) | ||
| Weight | Approx. 5.2kg | ||
*1 Gas alarm contact is a standard issue. Please specify if you wish a failure contact.
*2 Some are not ATEX approved. For further information, please ask.
*3 No radical temperature or humidity changes and no condensing.
Approvals
Connectable Alarm Units
UV-810 (Multi Point), V3 Series, NV-120 Series