Capacitive remote differential pressure/pressure transmitter model; HAD-CECY-150G22

After being equipped with capillary remote transmission flanges (RTW, PFW, EFW, RFW), the CECC/CECY capacitive differential pressure/pressure transmitter becomes the CECC/CECY capacitive remote transmission differential pressure/pressure transmitter. Therefore, the CECC/CECY capacitive remote differential pressure/pressure transmitter still has various characteristics of the CECC/CECY differential pressure/pressure transmitter.

Applicable situation

CECC/CECY remote differential pressure/pressure transmitter can avoid direct contact between the measured medium and the isolation diaphragm of the transmitter. It is suitable for the following situations:

(1) When the tested medium has a corrosive effect on the transmitter connector and sensitive components;

(2) When it is necessary to isolate the high-temperature measured medium from the transmitter;

(3) When there are solid suspended solids or high viscosity fluids in the measured medium that can easily block the transmitter connector and pressure chamber;

(4) When the tested medium is easily solidified or crystallized when led out with a pressure tube;

(5) When replacing the tested medium and flushing is required to prevent mixing;

(6) Hygiene conditions must be maintained to prevent contamination.

Product Features

High precision and good stability

Two wire system (special four wire system)

Solid components, plug-in printed circuit boards

Small, lightweight, sturdy and vibration resistant

Range and zero point are continuously adjustable externally

Adjustable damping

Good one-way overload protection characteristics

No mechanical movable parts, low maintenance workload

Unified structure across the entire series, with strong interchangeability of components

The membrane material in contact with the medium can be selected from corrosion-resistant materials such as 316L, TAN, Hastelloy C-276, MONEL, etc

Explosion proof structure, all-weather use

• Parameters and specifications:

• Working principle

  The process pressure is transmitted to the central measuring diaphragm of the delta chamber through the isolation diaphragm on both sides or one side, and the filling liquid. The central diaphragm is a tensioned elastic element that produces corresponding deformation displacement for the pressure difference acting on it on both sides. Its displacement is proportional to the differential pressure, with a maximum displacement of about 0.1mm. This displacement is converted into a differential capacitor formed on the capacitor plate, which is then converted into a 4-20mA DC output signal in a two-wire system by an electronic circuit.

  Function Parameter

  Target audience: liquids, gases, and vapors

  Measurement range: 0-0.16kpa to 0-40Mpa

  Output signal: 4~20mA DC (special for four wire 220V AC power supply, 0~10mA DC output)

  Power supply: 12-45V DC, usually 24V DC

  Load characteristics: related to the power supply, load impedance R_LCompared to the power supply voltage V_SRelationship is R_L≤50(V_S-12)

  Indicator: pointer type linear indication 0~100% linear scale and square root indication 0~100% flow scale, and 3¹/₂LCD display (0~100% linear)

  Explosion proof: a. Explosion proof EX d II BT5 explosion-proof certificate number GYB 02532

  b. Intrinsically safe EX ia CT6 explosion-proof certificate number GYB 02533

  Range and zero point: externally continuously adjustable

  Positive and negative transfer: After the zero point undergoes positive and negative transfer, the absolute values of the upper and lower limits of the range and measurement range cannot exceed 100% of the upper limit of the measurement range. The maximum positive migration is 500% of the minimum calibration range; The maximum negative transfer is 600% of the minimum calibration range.

  The maximum positive and negative transfer of the flow transmitter is 10% of the calibrated flow range.

  Temperature range: Amplifier operating temperature range: -29~+93 ℃ CECL type: -25~70 ℃ Explosion proof type:- 20+60℃

  Equipped with LCD display:+ 20~+70℃

  Measuring element filled with silicone oil:+ 40~！+ 104℃

  When filling high-temperature silicone oil into a flange type transmitter:+15~+315 ℃, for ordinary silicone oil reservoirs:- 40~+150℃

  Static pressure and overload pressure: 4, 10, 25, 32Mpa

  Humidity: Relative humidity is 0-100%

  Volume suction capacity: ＜ 0.16cm³

  Damping (step response) is generally continuously adjustable between 0.2s and 1.67s when filled with silicone oil

  Start time: 2s, no preheating required

  technical data

  (Without migration, under standard working conditions, filled with silicone oil, 316L stainless steel isolation membrane)

  Accuracy level: ± 0.2%, ± 0.25%, ± 0.5%

  Dead zone: None (≤ 0.1%)

  Stability: Within twelve months, the accuracy of the transmitter shall not exceed