Supplier Vegadif 85 Differential Pressure Transmitter
DISTRIBUTORALATINDUSTRI.COM | Supplier Vegadif 85 Differential Pressure Transmitter | VEGADIF 85 from VEGA is a high-performance differential pressure transmitter with a metallic measuring diaphragm, designed for accurate measurement of differential pressure in liquids, gases, and vapours. It is a versatile instrument that can be used for level, flow, density, interface, and filter monitoring applications.
Supplier Vegadif 85 Differential Pressure Transmitter

Main Applications
VEGADIF 85 is commonly used for:
- Differential pressure measurement
- Level measurement in pressurized vessels
- Flow measurement when combined with primary flow elements such as orifice plates, Venturi tubes, or flow nozzles
- Filter monitoring by measuring pressure drop across filters
- Density measurement
- Interface measurement between two liquids
- Measurement of liquids, gases, vapours, and suspensions
Key Specifications
| Parameter | VEGADIF 85 |
|---|---|
| Instrument Type | Differential Pressure Transmitter |
| Measuring Principle | Differential pressure with metallic measuring diaphragm |
| Measuring Range | +0.01 to +40 bar |
| Smallest Adjustable Span | 1 mbar / 100 Pa |
| Accuracy / Deviation | ≤ ±0.065% |
| Process Pressure | Up to 400 bar |
| Basic Process Connection | ¼-18 NPT |
| Process Connection with Chemical Seal | Flange from DN32 / 2″ and hygienic fittings |
| Process Temperature | Up to +400°C with chemical seals |
| Output Options | 4–20 mA/HART, 4–20 mA, PROFIBUS PA, FOUNDATION Fieldbus |
| Communication / Adjustment | HART, Bluetooth, PACTware/DTM, PLICSCOM |
| Wetted Materials | 316L, Alloy C276, Gold, Superduplex |
| Protection | Up to IP66/IP68 |
| Safety | SIL2 available |
| Explosion Protection | ATEX, FM, IEC, CSA, UKEX, etc. |
Measuring Principle
The VEGADIF 85 has two pressure inputs, commonly referred to as High Pressure (H) and Low Pressure (L). The difference between these two pressures is measured by the internal measuring cell.
Differential Pressure = High Pressure – Low Pressure
The resulting differential pressure is converted into an electronic output signal such as 4–20 mA/HART for connection to a PLC, DCS, control system, or flow computer.
One important advantage is its integrated overload diaphragm, which improves reliability when the transmitter experiences excessive pressure on one side. The sensor can also provide an integrated absolute-pressure measurement, making it a multivariable instrument for certain applications.
Materials
For demanding process conditions, the wetted components can be configured with materials including 316L stainless steel, Alloy C276, gold, and Superduplex. Chemical seals are also available for applications requiring separation between the measuring cell and process medium
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