0.5% High Accuracy Differential Pressure Transmitter 4 To 20mA Capacitive Sensor

1. Overview

The ML3000 series miniaturization capacitive intelligent transmitter is assembled and tested strictly, including high and low temperature intelligent compensation, which makes it to be a easy-installation and easy-use instrument. Various types 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. Function Parameters

• Applicable Object: Liquid, gas, steam
• Measuring Range: 0~0.1KPa--0~40MPa
• Output Signal: 4-20mA
• Power Supply: 12~45VDC, 24VDC is general
• Load Characteristic: Relative with power supply. The load capability in certain power supply and voltage refers to Pic2. Load impedance RL and supply voltage VS relation: RL≤50(Vs-12)
• Indicating Meter: Multiple parameters and multiple methods LCD indicating header
• EX-proof: a. Exd Type ExdIICT6 b. Intrinsic Safety Type ExidIICT4
• Range & Zero: Outer continually adjustable
• Positive & Negative Shift: When zero passes positive and negative shift, upper limit and lower limit of measuring range cannot exceed 100% of measurement upper limit. The maximum positive shift is 500% that of minimum adjustment range; the maximum negative shift range is 600% that o minimum adjustment range.
• Temperature Range:

Working temperature range of amplifier: -29~+93℃(LT Type: -25~+70℃)

Filling silicon oil measuring element: -40~+104℃

Filling high temperature oil with flange transmitter: +15~+315℃

Common silicon oil: -40~+149℃

• Static Pressure: 4, 10, 25, 32MPa
• Humidity: Relative humidity 0~100%
• Volume Absorb Quantity: <0.16cm³
• Damping(Step Response): Continually adjustable between 0.2s to 1.67s when filling oil

4. 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

5. 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)

6. 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.