Active Member
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[China]
Contact name:Summer Nan
Xi'an Shelok Instruments Technology Co., Ltd. |
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Description of high quality 4 20ma remote seal hydraulic differential explosion-isolated pressure transmitter china:
The monocrystalline silicon pressure/differential pressure
transmitter is used to measure the liquid level, density, and
pressure of liquids, gases, or vapors, and then convert them into
4-20mAHART current signal outputs. It can also communicate with
HART375 or BST Modem through them. Parameter setting, process
control. The difference from conventional pressure transmitters is
that they use nanocrystalline silicon as the sensor material.
SLK-D series single crystal silicon intelligent transmitter is a
new type of high performance intelligent differential pressure and
pressure change which is developed by the company with the
introduction of foreign advanced technology and imported foreign
monocrystalline silicon sensor. Sender. It adopts the
internationally advanced micro-mechanical single crystal silicon
sensor technology, and utilizes the excellent stability and
repeatability of single crystal silicon material. Through
micro-machining process and laser welding and packaging process,
the reliability and stability are extremely high. The effect of
overloading on static pressure is minimal. HART digital
communication technology adds intelligent and digital communication
functions to further meet the requirements of high reliability,
high stability and intelligence of industrial field measurement
team.
The sensor module uses all-welding technology and has an integrated
overload diaphragm, a pressure sensor and a temperature sensor. The
temperature sensor serves as a reference for temperature
compensation. The positive pressure side of the pressure sensor is
connected to the high pressure chamber of the sensor capsule, the
negative pressure side of the sensor is connected to the low
pressure chamber of the sensor capsule, and the pressure is
transmitted to the silicon chip in the sensor through the isolation
diaphragm and the filling liquid, so that the pressure sensor is
The resistance of the chip changes, resulting in a change in the
output voltage of the detection system. The output voltage is
proportional to the pressure change and is then converted by the
adaptation unit and amplifier into a standardized signal output.
Working principle of high quality 4 20ma remote seal hydraulic differential explosion-isolated pressure transmitter china:
Piezoresistive pressure sensor SLK-D series is constructed using
the piezoresistive effect of single crystal silicon. The
monocrystalline silicon wafer is used as an elastic component, and
an integrated circuit process is used on the single crystal silicon
diaphragm to spread a set of equivalent resistance in a specific
direction of the single crystal silicon, and the resistor is
connected into a bridge, and the monocrystalline silicon wafer is
placed. Inside the sensor cavity.
When the pressure changes in the single crystal silicon pressure
transmitter, the single crystal silicon is strained, so that the
strain resistance directly diffused on it generates a change
proportional to the measured pressure, and the corresponding
voltage output signal is obtained by the bridge circuit.
Specification of high quality 4 20ma remote seal hydraulic differential explosion-isolated pressure transmitter china:
| Measuring range | 0-1kPa-10MPa | Certification | CE, explosion-proof |
| Measuring medium | liquid, gas, steam | Signal output | 4-20mA, 4-20mA+HART |
| Stability | ±0.2% URL/year | Accuracy | ±0.2% URL |
| Medium temperature | -40~120°C | Diaphragm | SS316L, Hastelloy C |
| Process connection | M20*1.5(M), G1/2(M), G1/4(M), 1/2-14NPT(M), customized | Ingress protection | IP67 |
Detailed Images of high quality 4 20ma remote seal hydraulic differential explosion-isolated pressure transmitter china:
Applications of high quality 4 20ma remote seal hydraulic differential explosion-isolated pressure transmitter china:
Widely used in pharmaceutical, medical equipment, petroleum, gas, chemical, urban construction power, metallurgy, textile, aerospace, scientific research, leak detection, automation equipment and other fields.
