Description
IMV31 is a true 4-in-1 multivariable transmitter that simultaneously measures Differential Pressure, Static Pressure, Temperature, and calculates Mass / Compensated Flow in one device. Designed for steam, compressed air, natural gas, and energy metering lines, it eliminates the need for separate transmitters, density calculators, temperature probes, and flow computers. Ideal for utility steam networks, gas skids, turbine metering, and high-efficiency energy audits in plants.
IMV31 — Key Technical Data & Selection Parameters
| Parameter | Specification / Details |
| Measurement Types | DP + Static Pressure + Temperature + Mass / Energy / Compensated Flow |
| Accuracy (DP) | ±0.04% of span |
| Accuracy (Static Pressure) | ±0.04% |
| Accuracy (Temperature) | ±0.18 °C |
| Turndown / Rangeability | 100:1 |
| Output | 4–20 mA + HART / Modbus |
| Mass Flow Calculation | Built-in API/AGA steam & gas algorithms |
| DP Range | 0–0.06 mbar to 0–210 bar DP |
| Static Pressure Limit | Up to 420 bar |
| Response Time | < 100 ms |
| Compensation | Real-time P + T compensation for flow accuracy |
| Process Temp Rating | –40 °C … +120 °C (with seals) |
| Safety / Certifications | SIL2 / ATEX / IECEx / FM |
| Display | LCD with live mass, density, compensated flow |
| Wetted Materials | SS316L, Hastelloy C, Tantalum |
| Primary Element Compatibility | Orifice, Venturi, Wedge, Annubar, Pitot, V-Cone |
| Diagnostics | Plugged impulse detection, DP drift alert |
| Enclosure Rating | IP66 / IP67 |
| Communication | HART / Modbus / Foundation Fieldbus (optional) |
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