Dwyer AT-605 Series ATEX/IECEx Certified Differential Pressure Transmitter
ATEX/IECEx flameproof differential pressure indicating transmitter, local pointer display + 4-20mA two-wire output.
- Original Factory Genuine, Tenfold Compensation for Counterfeits
- Full Machine Warranty, Lifetime Maintenance
- In Stock, Shipped on the Same Day
The AT-605 Series is an ATEX/IECEx flameproof differential pressure indicating transmitter that displays micro differential pressure locally in hazardous areas while outputting a 4-20mA two-wire signal. The aluminium flameproof enclosure with glass window, with a maximum loop impedance of 1250 Ω, is suitable for differential pressure monitoring of filters and ventilation systems in explosion-proof workshops.
| Parameter Name | Technical Specifications |
|---|---|
| Main specifications | |
| Medium | Air and non-combustible, compatible gases |
| Wetted materials | Consult factory |
| Accuracy | See 605 differential pressure gauge |
| Pressure limits | See 605 differential pressure gauge |
| Temperature limit | 20~120°F (-6.67~48.9°C) |
| Compensated temperature range | 32~120°F (0~48.9°C). |
| Thermal effect | ±0.025% FS/°F (0.045% FS/°C). |
| Stability | ±1% FS/year |
| Power Supply | 10-35 VDC (2-wire). |
| Output Signal | 4-20 mA. |
| Zero and span adjustment | 605 front-protected potentiometer. These can be accessed by opening the case, which is only permitted in a safe area. |
| Loop resistance | DC: 0 to 1250 Ω max. |
| Current consumption | DC: 38 mA max. |
| Electrical connection | Screw terminals |
| Mounting orientation | Vertical |
| Enclosure | IP66 (IP65 for versions VS1/VS2/VL1). |
| Pressure connection | 1/8" NPT brass female (SS optional). SS is necessary in the presence of acetylene. |
| Weight | 13.2 lb (6.0 kg). |
| Certification | ATEX Compliant: CE 0477 EX II 2G Ex db IIC T5, T6 Gb -60°C ≤Ta ≤+50°C (T6) -60°C ≤Ta ≤+60°C (T5) II 2D Ex tb IIIC T75 °C Db IECEx Compliant: Ex db IIC T5, T6 Gb -60°C ≤Ta ≤+50°C (T6) -60°C ≤Ta ≤+60°C (T5) Ex tb IIIC T75°C Db. |
| Housing | Flameproof aluminium enclosure with glass window (optional) |
| Size | 4" (101.6 mm) dial |
| Housing material | Aluminium |
| Process connection | 1/8" NPT brass female (stainless steel optional; stainless steel is mandatory for acetylene measurement) |
| Model selection | |
| Selection table | The official website publishes a screenshot of the selection table; for complete model numbers and ranges, see the official manual "AT-605_i.pdf" in the documentation package. |
- ATEX/IECEx flameproof enclosure, suitable for hazardous areas
- Magnehelic gauge for local indication, with simultaneous 4-20mA output
- 10-35 VDC two-wire, maximum loop impedance 1250 Ω
- With glass viewing window for process pressure and dial readings
Hazardous area filter differential pressure monitoring
Monitors filter pressure drop in explosive atmospheres, with signal sent to the control room.
Tank farm ventilation differential pressure monitoring
Monitors differential pressure of hazardous area ventilation systems to ensure proper air exchange.
Need selection advice or bulk quotation?
Send us the working condition parameters (signal type, medium, range, pressure, temperature, connection method), and our engineers will provide a selection scheme and quotation within 1 working day.
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