Dwyer ISDP Series Intrinsically Safe Differential Pressure Transmitter
Intrinsically safe differential pressure transmitter, Class I Div.1 certified, 4-20mA output, switchable pressure/air velocity/air volume.
- Original Factory Genuine, Tenfold Compensation for Counterfeits
- Full Machine Warranty, Lifetime Maintenance
- In Stock, Shipped on the Same Day
The ISDP Series is an intrinsically safe differential pressure transmitter with Class I Div.1 Groups A~D intrinsic safety certification, suitable for safe use in hazardous areas. Range 0.25″~100″ w.c., accuracy ±0.5% FS, menu-switchable pressure, air velocity or air volume mode, 4-20mA output.
| Parameter Name | Technical Specifications |
|---|---|
| Main specifications | |
| Medium | Air and non-corrosive gases. Wetted materials: ranges 5 in w.c. and above: glass, PVC, silicon, alumina ceramic, epoxy, RTV, gold, aluminium, stainless steel and nickel; ranges 1 in w.c. and below: stainless steel, silicone, gold and ceramic |
| Housing material | Aluminium, glass |
| Accuracy | ±0.5% to 77°F (25°C) including hysteresis and repeatability (after 1 hour warm-up) |
| Stability | <±1% |
| Pressure limits | Ranges ≤ 2.5 in w.c. = 2 psi; 5 in w.c.: 5 psi; 10 in w.c.: 5 psi; 25 in w.c.: 5 psi; 50 in w.c.: 5 psi; 100 in w.c.: 9 psi. |
| Temperature Range | 32~140°F (0~60°C). Compensated |
| Temperature limit | 32~140°F (0~60°C). Thermal effect: 0.020% /°F (0.036°C) from 77°F (25°C) |
| Power Supply | 10 - 35 V DC |
| Output Signal | 4-20mA |
| Zero and span adjustment | Accessible via menu |
| Response time | 250ms (damping set to 1). LCD |
| Display | 4-digit 0.6˝ high LCD |
| Electrical connection | m -12 4-pin connector |
| Process connection | 1/8˝ NPT female. Enclosure rating: designed to meet NEMA 4X (IP66) |
| Mounting orientation | Mounting unit on vertical plane. Weight: 2 lb 10 oz (1.19 kg) |
| Certification | CE: CENELEC EN 61326/55024: 2003; IEC 61000-4-2/3/4/6:2001/2006/2004/2005; CENELEC EN 55011: 2006; 2004/108/EC EMC Directive. FM Intrinsically Safe CLI Div I GR: A, B, C, D; CLII Div I GR: E, F, G; CLIII Div I. |
| 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 "ISDP.i.pdf" in the documentation package. |
- Intrinsically safe: Class I Div.1 Groups A~D, Class II Div.1 E~G
- Accuracy ±0.5% FS, range 0.25"~100" w.c., bidirectional
- Menu-selectable pressure, air velocity or air volume, with built-in K factor and round/rectangular duct conversion
- 4-20mA two-wire, 10-35 VDC supply, M-12 four-pin connector
Ventilation differential pressure monitoring in hazardous areas
Monitor differential pressure on the ventilation system of an explosion-proof workshop or tank farm, with the signal sent to the control room.
Air volume monitoring for dust removal and exhaust systems
Convert air volume using the K factor to confirm the exhaust capacity meets process requirements.
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.
- Phone consultation +86-21-66020232
- Email inquiry web@qishan-sh.com
