Differential pressure transmitter P 29

Product Details:

Grade Industrial Grade
Thread 1/2 BSP/NPT
Seal Material Neoprene Rubber
Outer Size 110 mm OD body
Display Analog Dial
Bourdon Tube Stainless Steel
Sensor Type Capacitive Sensor
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Differential pressure transmitter P 29 Product Specifications

Bourdon Tube Stainless Steel
Processing Type Laser Calibrated
Diameter 100 mm Dial
Sensor Type Capacitive Sensor
Measure Pressure Of Liquid, Gas, or Steam
Finishing Glossy Polished Finish
Display Analog Dial
Material Stainless Steel (SS-304/SS-316)
Outer Size 110 mm OD body
Mount Type Panel/Wall Mount
Accuracy 1.6% F.S.
Pointer Material Black painted aluminum
Dial Material Aluminum with powder coating
Seal Material Neoprene Rubber
Thread 1/2 BSP/NPT
Scale Range 0 to 2500 mmWC (Water Column)
Accessories Mounting brackets, Instruction manual
Glass Size 100 mm toughened glass
Grade Industrial Grade

Product Description

Special features

High level of accuracy and long-term stability through automatic zero-point calibration
Easy configuration of the measuring range, analog output, time constants and units via PC or keyboard (optional)
Measurement of differential pressure or volumetric flow / flow rate possible
Multilingual menu (English/German/Italian/French)
Multi-coloured Display with keyboard for configuration of the pressure transmitter (optional)
Suitable for top-hat rail mounting and wall surface installation
Silicon-free materials for parts in contact with medium
Selectable output signal 0 .. 10 V, 0/4 .. 20 mA or 5 V
Selectable attenuation of the output signal from 0 .. 60 s
Can be calibrated
High level of overpressure protection even in the smallest measuring ranges protects the instrument against pressure peaks or incorrect operation
Quick and easy start-up due to automatic zero-point calibration
Pressure Ports: Laboratory nozzle optional with cutting ring connectorsTV-certified differential pressure transmitter for measurement for natural gas applications without Ex-zone requirements.

Measurement ranges
250 / 500 Pa
1 / 2.5 / 5 / 10 / 20 / 50 / 100 kPa
freely scalable from 10 .. 100 % within a measurement range
(others available on request)

Margin of error
0.2 % of max. value or 0.5 % of max. value (standard)
(0.3 Pa margin of error for the reference)

Output
0 .. 10 V (R_L 2 k),
0 .. 20 mA (R_L 500 )
4 .. 20 mA (R_L 500 )
5 V (R_L 2 k)
(output signals can be configured freely)

Power supply
24 VDC, 10 %

Display (optional)
multicoloured LCD and keyboard

Tubing connections
Standard for tubing NW 5 .. 8 mm or
Cutting ring coupling 8 mm

Rugged Build for Demanding Applications

Constructed with high-quality stainless steel and a glossy polished finish, the P 29 differential pressure transmitter ensures excellent durability and corrosion resistance. The neoprene rubber seals and toughened glass dial contribute to longevity, even in harsh industrial environments. Its enclosure is certified IP65 for reliable protection against dust and water ingress.

Precise Measurement and Fast Response

Equipped with a laser-calibrated bourdon tube and capacitive sensor technology, this transmitter delivers accuracy of 1.6% F.S. within a scale range of 0 to 2500 mmWC. The device features a rapid response time (less than 1 second), making it suitable for dynamic process control applications where timely pressure monitoring is critical.

Flexible Mounting and Versatile Connectivity

The P 29 supports both panel and wall mounting, with provided brackets and a comprehensive instruction manual for easy installation. Electrical connections can be made via cable gland or terminal block, accommodating varied industrial requirements. With both BSP and NPT thread options (1/2 inch), integration with existing systems is straightforward.

FAQ's of Differential pressure transmitter P 29:

Q: How do I install the Differential Pressure Transmitter P 29?

A: The P 29 can be easily installed using the supplied mounting brackets for either panel or wall mount orientations. Ensure it is mounted vertically as specified for optimal performance. Secure the process connections (1/2 BSP/NPT) and complete the electrical wiring via the cable gland or terminal block as per the included instruction manual.

Q: What types of media can this transmitter measure pressure for?

A: This differential pressure transmitter is designed to accurately measure the pressure of liquids, gases, and steam within the specified scale range. Its stainless steel construction and neoprene rubber seals ensure compatibility with a wide variety of industrial media.

Q: When should zero adjustment be performed on this device?

A: Zero adjustment may be necessary during initial installation or after significant process changes. Front-accessible adjustment screws make it convenient to fine-tune the zero point without dismantling the enclosure, ensuring precise readings over time.

Q: Where can the P 29 transmitter be used considering environmental limits?

A: With an IP65 enclosure, operating temperature range of -20C to +70C, and suitability for up to 95% relative humidity (non-condensing), the P 29 is ideal for a wide range of industrial environments, both indoors and sheltered outdoor locations.

Q: What are the benefits of the analog dial display and laser calibration?

A: The analog dial with a 100 mm toughened glass window provides clear, immediate visual readings. Laser calibration ensures each instrument delivers reliable and consistent accuracy throughout its service life.

Q: How is the output signal transmitted, and what is the power requirement?

A: The P 29 provides a standard 4-20 mA output signal, commonly accepted by control and monitoring systems. The device operates on a 12-36 V DC power supply, making integration straightforward in most industrial setups.

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