详情描述


JEF200D Series Level Membrane Pressure Transmitters are available in two main structural types: strain gauge level membrane type, featuring a robust level membrane with special treatment on the measuring end, which is not damaged by hard particles in the measured medium. They are compact, corrosion-resistant, vibration-resistant, particle-resistant, and offer wide-range temperature compensation. They are particularly suitable for measuring pressure of high-viscosity fluids or those containing particles. The other type, the diffusion silicon front-end type, is made with imported diffusion silicon cores, utilizing calibration and digital compensation technology for reliable product performance and stable output, making it highly favored by customers. They are widely used in polyurethane equipment, papermaking, paint, and food processing industries, such as chocolate and milk processing equipment, for pressure measurement.


The JEF200D series pressure transmitters are industrial pressure measurement instruments featuring strain gauge sensing elements, wide applicability, and excellent cost-performance.


The JEF200D measuring end features a robust, flat diaphragm with special treatment, made from imported materials and utilizing diaphragm isolation technology. The test head has no pressure relief holes, and the core isolation diaphragm directly senses the medium pressure, creating a cleanable, non-depositing medium contact. It is very easy to clean and disinfect the medium contact area, preventing issues such as scaling, clogging, and unsanitary conditions in the measured medium. Hard particles in the measured medium will not damage the isolation flat diaphragm. Particularly suitable for high-viscosity or particulate fluid pressure measurement, such as in the pressure measurement of processing equipment for items like chocolate and milk.


All electronic components are imported from renowned brands, featuring precise temperature compensation, exquisite all-stainless steel sealed welding, and comprehensive assembly techniques. These products boast high precision, strong resistance to interference, overload, and impact, excellent moisture resistance, and long-term stability.


Product Features


Reverse polarity protection and instantaneous overcurrent/overvoltage protection, compliant with EMI protection requirements


Output signals are available in various standard specifications, such as 4~20mA, RS485 digital signals, and 4~20mA according to the HART protocol, compatible with indicator heads.


Extensive measurement range; fully welded stainless steel construction


Our explosion-proof products comply with the GB3836.4 standard requirements and have obtained the explosion-proof certificate. The explosion-proof marking is ExiaⅡCT6.


Performance Parameters

Measurement Range0~0.5 MPa…0~100 MPa Overpressure Capacity: 6~3x Full Scale
Pressure TypePositive Pressure (including Gauge Pressure and Sealed Gauge Pressure)
Grade±0.5%FS ±0.25%FS (Test Conditions: Temperature 20±2°C; Pressure 86~106 KPa; Humidity 45%RH~75%RH)
Operating Temperature-40~80℃
Temperature Drift≤0.03%FS/℃
Annual stabilityTypical: <0.2% FS/year; <0.5% FS/year

Electrical Parameters

Supply Voltage12~30VDC
Current Load(U-10)/0.02Ω 【U: Power Voltage】
Output SignalTwo-wire 4~20mA, three-wire 0.5~4.5VDC, 1~5VDC, 0~5VDC, four-wire RS485 digital output
Insulation strength500V Non-Short Circuit Voltage
Insulating Resistance＞500MΩ
Frequency ResponseSensor < 1ms; Transmitter ≤ 15ms
Service Life＞1 million pressure cycles
Explosion-Proof MarkingExia II CT6 Intrinsically Safe (only applicable to explosion-proof models)
Electrical interface and cable wire diameter requirementsHSM connector (wire diameter Ø4.5~Ø7mm) or 1-meter cable

Physical Parameters

Applicable MediumNon-reactive liquids and gases with structural materials (probe materials, sealing materials) Probe base material: Stainless steel and others Probe sealing material: Full-welded structure without sealing materials
Protection LevelIP65 IP67 IP68
WeightApprox. 150g~10kg (varies depending on the application variant)

Environmental Parameters

Atmospheric pressure60~110KPa
Ambient Humidity≤95%RH
Storage Temperature-40~120℃
VibrationUnder 10g RMS, 20~2000Hz conditions, variation is less than <0.5%FS.
Impact100g, 10 ms impact change < 0.5%FS (valid only for general type; general type allows 120g impact)
Electromagnetic/RF InterferenceUnder 10~300MHz frequency and 15v/m field strength interference, error is less than 0.5%FS.

Dimensional drawing:

Selection Tips:


Please ensure compatibility between the product part in contact with the medium being tested and the selection.


2. When ordering transmitters with an LCD or LED meter head, the supply voltage of the transmitter should not be less than 20VDC.


3. To ensure reliable operation of the product, it is recommended that users install lightning protection devices on-site and ensure that the product and power supply are properly grounded.


4. Please specify any special requirements such as strong vibration, sudden impact force, or radio frequency interference to our company, and note them in the order.


5. 5VD power supply offers an output of 0.5 to 4.5VDC only.