High Static Differential Pressure (DP) Transmitter

1. Overview

Differential pressure transmitters measure the difference between two pressures.

Differential Pressure Transmitter converts pressure measurements, into a proportional 4-20 mA or a 1 – 5 Vdc output signal, that functions as the input to a controller, recorder, indicator or similar device.

These transmitters find application in the gas, water, and process industries that need accurate measurements, over a wide range of environmental conditions.

The most common and useful industrial pressure measuring instrument is the differential pressure transmitter.

s are available, including measurements for differential pressure, flow, absolute pressure, vacuum degree, level, and specific gravity.

2. Features

• Capacitive sensors
• Adopt high-tech machinery processing microelectronics
• The sensors outputs capacitance signal, direct interface with digital systems
• High accuracy, better than ±0.1%(Analogue signal)       Linear output: ±0.075%(Digital intelligent signal)
• High turndown ratio: 10:1~100:1
• High stability & reliability
• Good unidirectional over voltage capability
• Improved self-diagnosis & remote setting communication function
• Multi-parameter and multi-methods LED display

3. Technical Parameters

• Accuracy: ±0.5%, ±0.075%
• Dead zone: None(≤0.1%)
• Stability: Less than the absolute value of basic error of maximum range with 6 months
• Vibration Effect: With 200Hz vibration frequency and error that of ±0.05%/g upper limit of measuring range in arbitrary axis.
• Power Supply: <0.005%/V output range
• Load Effect: No load effect under stable power supply

4. Other Parameters

• Isolation Diaphragm: 316L Stainless Steel, Hastalloy C, Monel or Tantalum
• Venting/Drain Valve: 316L Stainless Steel, Hastalloy C, Monel
• Flange & Joint: 316L Stainless Steel, Hastalloy C, Monel
• Contact Medium O-Ring: Chemigum, Fluorous Rubber
• Filliing Liquid: Silicon Oil or Inert Oil
• Bolt: 316 Stainless Steel
• Electronic Shell Material: Low Copper Aluminum Alloy
• Impulse Connection: Flange 1/4NPT, Center Distance 54mm, Joint 1/2NPT or M20*1.5 Male Thread Ball Cone Seal, Center Distance with Joint 50.8, 54, 57.2mm(NPT Spinal Canal Thread According to GB/T12716-91)
• Signal Wire Connection Hole: G1/2’’, M20*1.5
• Weight: 3.9KG(Standard)

5. Configuration

ML3000W Micro Differential Pressure Transmitter:

The max static pressure is 4MPa, the min measuring range is 0-0.125~1.5KPa.

They can shift to a negative pressure transmitter.

Medium:liquid, gas, steam.

6. Details