Dwyer AT-3000MR/3000MRS ATEX/IECEx Certified Photohelic® Differential Pressure Gauge
ATEX/IECEx flameproof Photohelic differential pressure switch/gauge, Ex db IIC T5/T6, with high/low limit control.
- Original Factory Genuine, Tenfold Compensation for Counterfeits
- Full Machine Warranty, Lifetime Maintenance
- In Stock, Shipped on the Same Day
The AT-3000MR/3000MRS is an ATEX/IECEx flameproof Photohelic differential pressure switch/gauge, certified to Ex db IIC T5/T6 Gb and Ex tb IIIC T75°C Db. Pointer indication with high/low limit switch control, readings remain available on power loss; MR uses electromechanical relays, MRS uses solid-state relays.
| Parameter Name | Technical Specifications |
|---|---|
| Main specifications | |
| Weight | 13.2 lb (6 kg) |
| ATEX certificate | EPT19ATEX3192X |
| Agency approval | 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 | Aluminium flameproof enclosure with glass window |
| Relay | MR type electromechanical relay / MRS type SPST solid-state relay, high/low limit control |
| Pressure Resistance | 25 psig (1.72 bar), optional 35 psig or 80 psig |
| Process connection | 1/8" NPT female |
| Installation requirements | Cable entry via 1/2" NPT gland or ATEX conduit; open cover only after power-off |
| Model selection | |
| Selection table | Published on the official website as a screenshot of the selection table; for complete model numbers and ranges, see the official manual "AT-3000MR_MRS_i.pdf" in the documentation package. |
- Flameproof certification: Ex db IIC T5/T6 Gb, Ex tb IIIC T75°C Db
- Pointer indication + high/low limit switch control; reading remains available after power-off
- MR is an electromechanical relay, MRS is an SPST solid-state relay
- Glass window allows viewing of setpoint pointers and process pressure
- Weight 13.2 lb (6 kg), aluminium flameproof enclosure
Differential pressure interlock in explosion-proof workshops
Interlocks fans or alarms when differential pressure is insufficient, ensuring ventilation in hazardous areas.
Filter differential pressure alarm in chemical plants
Outputs alarm signals to DCS according to high/low limits.
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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