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Instrumentation & Automation
Differential Pressure Transmitters
Differential pressure transmitters for flow, filter, vessel and level measurement. The cited FD3051S DP family spans 50 Pa to 3 MPa differential; static-pressure options are separate.
Model-family reference data
Reference fields for quotation comparison. Final values must be confirmed in the signed manufacturer datasheet.
| Parameter | Reference value | Notes |
|---|---|---|
| Differential range | 50 Pa to 3 MPa | FD3051S DP family endpoints; select a sensor range code |
| Accuracy options | 0.075%, 0.1% or 0.25% full scale | Select according to measurement duty and turndown |
| Static-pressure options | 16, 25 or 40 MPa | Separate from the calibrated differential span |
| Analog and digital signal | HART or Modbus RTU4-20 mA or RS485 | State host-system and diagnostic requirements |
| Enclosure reference | IP65 | Verify the complete installed assembly and cable entries |
Model-specific technical reference
Do not confuse differential span with static pressure
The FD3051S DP manufacturer datasheet gives a differential-pressure family from 50 Pa to 3 MPa and separate optional static-pressure ratings of 16, 25 or 40 MPa. The 40 MPa figure is not the differential measuring span. Accuracy options are 0.075%, 0.1% and 0.25% of full scale, depending on selected configuration. Ask for the selected range code and permissible overpressure as separate fields. This reference is not an offer of a specific unit or evidence of our authorization, stock or supply rights.
Published manufacturer data is a selection reference, not a quotation or evidence of supply availability.
Product overview
Differential-pressure duties
A differential pressure transmitter measures the pressure difference between high and low sides. Common oil and gas duties include orifice flow measurement, filter monitoring and pressurized-vessel level. The cited FD3051S DP datasheet gives a 50 Pa to 3 MPa family differential range and separate 16, 25 and 40 MPa static-pressure options. A selected capsule does not cover every family endpoint.
Accuracy and output choices
The manufacturer lists 0.075%, 0.1% and 0.25% full-scale accuracy options, a -20 to 80 degrees C working-temperature range, and optional 4-20 mA, 1-5 VDC or RS485 outputs with HART or Modbus RTU. Not every option is simultaneous. Buyers must distinguish calibrated differential span, working static pressure and allowable overpressure.
Manifold and installation data
Define both process connections, manifold arrangement, equalizing and vent requirements, impulse-line material and mounting orientation. For wet-leg, dry-leg or remote-seal level service, supply vessel pressure, fluid density, tap elevations and capillary conditions. Flow applications also need the primary element and expected flow range.
RFQ checklist
Upload the instrument index, process datasheet and piping detail. Request the full model code, selected span, static-pressure option, wetted materials, output, enclosure and calibration records. Check any hazardous-area marking against the exact ordered configuration and certificate scope.
Technical reference trail
These public references support the equipment family and selection context. They do not imply dealership, authorization or a guaranteed order specification.
Frequently Asked Questions
Is differential range the same as static pressure rating?
No. The calibrated differential span and the maximum common static pressure are separate limits and both must be stated and checked.
What vessel data is needed for DP level measurement?
Provide vessel pressure, fluid density, tap elevations, wet-leg or dry-leg arrangement, seal details and minimum and maximum level.
Should the manifold be quoted with the transmitter?
Usually yes when a complete installed assembly is required. Specify valve pattern, material, pressure class, vent and drain connections and mounting style.
Submit RFQ for Differential Pressure Transmitters
Send product, quantity, specification and destination details so the requirements can be reviewed with potential suppliers.
Technical and RFQ References
Check common units, standards and purchasing terminology, then build a structured request for this equipment.
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Related Technical Articles
How to Specify Differential Pressure Transmitters for an Oilfield RFQ
Define low- and high-side pressure, differential span, static pressure, manifold arrangement, output and impulse-line conditions before quotation.
Differential Pressure Transmitter Range and Signal Options
Distinguish FD3051S DP differential span from static-pressure rating before specifying a flow, filter or level measurement point.
How to Specify Pressure Transmitters for an Oilfield RFQ
Compare calibrated range, accuracy, output, process connection, wetted materials and installation conditions before requesting a pressure-transmitter quotation.