Sensocon USA Wet/Wet Differential Pressure Transmitter Series 251-04

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Sensocon USA Wet/Wet Differential Pressure Transmitter Series 251-04 Specification

Display
None (Transmitter output only)

Outer Size
Enclosure: 115mm x 85mm x 50mm (approx.)

Sensor Type
Wet/Wet Differential Pressure Transmitter

Thread
1/4 NPT (Female)

Seal Material
Viton (standard), others optional

Grade
Industrial

Material
Enclosure: Aluminum, Wetted Parts: Stainless Steel/Brass

Processing Type
Electronic Pressure Sensing

Diameter
Not Applicable (rectangular enclosure)

Mount Type
Surface/Panel Mounted

Scale Range
0-4 Bar (differential)

Accuracy
1.0% FS (Full Scale)

Measure Pressure Of
Liquids and Gases

Accessories
Mounting hardware included, instruction manual

Ingress Protection
IP65

Weight
Approx. 450 grams

Output Signal
4-20 mA (2-wire loop powered)

Electrical Connection
M12 connector, terminal block

Zero and Span Adjustment
Push-button or potentiometer

Supply Voltage
12-36 VDC

Maximum Pressure
10 Bar

Response Time
<50 ms

Operating Temperature Range
-10C to +60C

Sensocon USA Wet/Wet Differential Pressure Transmitter Series 251-04 Trade Information

Payment Terms
Cash on Delivery (COD), Cash Against Delivery (CAD), Cash Advance (CA), Cash in Advance (CID)

Main Export Market(s)
Asia

Main Domestic Market
All India

About Sensocon USA Wet/Wet Differential Pressure Transmitter Series 251-04

Sensocon USA Wet/Wet Differential Pressure Transmitter Series 251-04

The Series 251 wet/wet differential pressure transmitter utilizes a double diaphragm sensor technology that outperforms standard double sensor products in accuracy, reliability and static operating pressure. This differential pressure sensing technology offers 0.25% accuracy with static operating pressures up to 1000 PSI. The Series 251 features 316 stainless steel construction designed to meet NEMA 4X (IP 65) standards. The transmitter also offers exceptional field flexibility with a 5:1 turn down and comes standard with a certificate of calibration.

Media compatibility: Gas and Liquids compatible with 316SS
Accuracy: +/- 0.25% F.S.
Over Pressure: positive - 2x f.S.; negative-1x F.S.
Working Pressure: 1000 PSI (7MPa)
Temperature Limits: Operating: -40° to 185°F (-40° to 85°C)Compensated: -4° to 158°F (-20° to 70°C)
Thermal Effect: +/- 0.028% FS/°F (0.050%FS/°C)
Stability: +/- 0.5% FS/year
Power Supply: 12-30 VDC
Output Signal: 4-20 mA, 2-wire
Electrical Connetction: mini DIN 43650
Response Time: 100 ms
Turn Down: 5:1
Enclosure Rating: NEMA 4X (IP 65)
Process Connection: 1/4" NPT female, optional 1/4" G
Mounting Position Effect:0.1% F.S., can be corrected by zero adjust
Model Number : 251-04
Range: 0 - 30 PSI ( 206.8 kPa )

High Performance Differential Pressure Measurement

Engineered for industrial precision, the Series 251-04 efficiently measures the differential pressure of liquids and gases. The transmitters stainless steel and brass wetted parts offer durability, while the Viton seal ensures chemical resistance. Fast response and reliable accuracy help maintain process integrity, making it suitable for critical control systems in HVAC, filtration, and process automation applications.

Versatile Installation and Robust Construction

The enclosure, crafted from aluminum and coated with epoxy powder, ensures resilience in demanding environments. With both surface and panel mounting options, along with included mounting hardware, installation is straightforward. The IP65 rating defends against dust and water ingress, ideal for indoor and outdoor industrial locations.

User-Friendly Adjustments and Connections

Zero and span calibration can be done easily via push-button or potentiometer, providing flexibility during commissioning and maintenance. The M12 and terminal block connections are designed for quick, secure wiring, while the transmitters 2-wire loop configuration simplifies integration into existing control systems.

FAQs of Sensocon USA Wet/Wet Differential Pressure Transmitter Series 251-04:

Q: How is the Sensocon 251-04 transmitter typically installed?

A: The transmitter can be surface- or panel-mounted using the provided mounting hardware. Its rectangular enclosure, pre-drilled mounting points, and robust design simplify installation in both indoor and outdoor industrial environments.

Q: What types of fluids and gases can this differential pressure transmitter measure?

A: The 251-04 is engineered to measure the differential pressure of both liquids and gases. The wetted parts are made of stainless steel and brass, compatible with numerous process fluids, and the Viton seal offers enhanced chemical resistance.

Q: When is it necessary to perform zero and span adjustments?

A: Zero and span calibration is recommended upon initial installation and whenever process requirements change. Adjustments can be made easily using either the front push-button or the accessible potentiometer.

Q: Where can the Series 251-04 be used, considering its protection rating?

A: Thanks to its IP65 ingress protection, the unit is suitable for cleanrooms, HVAC systems, industrial plants, and other environments where exposure to dust and low-pressure water jets is possible.

Q: What is the benefit of the 4-20 mA output signal in this device?

A: The 4-20 mA (2-wire loop powered) output allows for long cable runs without significant signal loss and provides noise immunity, making it ideal for industrial control and monitoring applications.

Q: How quickly does the transmitter respond to pressure changes?

A: The 251-04 features a response time of less than 50 milliseconds, ensuring that any fluctuations in process pressure are detected and communicated rapidly to control systems.