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P402 Industrial Pressure Transmitter
P402 Industrial Pressure Transmitter
Product details
1、 Overview
The P400 series industrial pressure transmitter adopts single crystal silicon or diffused silicon pressure sensor sensitive elements, computer laser resistance adjustment for temperature compensation, and integrated junction box design. Equipped with dedicated wiring terminals and digital displays, it is easy to install, verify, and maintain. This series of products is suitable for various enterprises and institutions such as petroleum, water conservancy, chemical, metallurgical, electric power, light industry, scientific research, environmental protection, etc. It realizes the measurement of fluid pressure and is suitable for all-weather environments and various corrosive fluids in various occasions.
2、 Main features
Multiple range options; Digital and LCD pressure display; Zero point and range debugging are convenient; Reverse polarity protection and current limiting protection; Resistance to lightning strikes and impacts; Intrinsically safe explosion-proof; Small size, beautiful appearance, high cost-effectiveness; High precision, high stability, and high reliability.
3、 Technical performance
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measurement range |
-0.1~0~100MPa |
accuracy class |
0.1%, 0.25% |
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overload capacity |
200% |
output signal |
4~20mA/RS485 |
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stability |
≤ 0.1%/year |
power supply voltage |
18~36VDC |
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display mode |
4-digit LED |
display range |
-1999~9999 |
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ambient temperature |
-20℃~70℃ |
relative humidity |
≤80% |
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install thread |
M20 * 1.5, etc |
Interface material |
stainless steel |
4、 External dimensions
5、 Electrical wiring
The signal terminals are located in a separate compartment of the electrical box. When wiring, the meter cover on the wiring side can be unscrewed. The power supply is connected to the transmitter through a signal line and does not require additional wiring.
The signal line can be twisted pair. In situations with severe electromagnetic interference, it is recommended to use shielded wires and ground them properly. Do not thread the signal line through a metal tube or place it in the same cable tray as other power lines, and do not pass near strong electrical equipment.
The wiring holes on the electrical housing of the transmitter should be sealed or plugged (with sealant) to prevent moisture accumulation inside the electrical housing. If the wiring hole is not sealed, the transmitter should be installed with the wiring hole facing downwards to facilitate the drainage of liquids.
The signal line can also be floating or grounded at any point in the signal circuit, and the transmitter housing can also be grounded or ungrounded.
Because the transmitter is grounded through capacitive coupling, a megohmmeter higher than 100V cannot be used to check insulation resistance, and a voltage not exceeding 45V should be used for circuit inspection.
6、 Precautions
1. Please connect the wires correctly according to the diagram. If the connection is reversed, due to the protective measures adopted inside the transmitter, there will be no signal output. The transmitter can work when powered on, and the output signal of this product is stable and reliable.
2. This transmitter is used in media that are non corrosive to silicon and stainless steel (except for special anti-corrosion types).
3. The maximum pressure that can occur in the measured system cannot exceed the rated overload value. The back pressure end of the transmitter cannot be directly connected to conductive or corrosive liquids or gases. The air guide hole of the liquid level sealed air guide cable cannot be blocked.
4. It is strictly prohibited to insert sharp and hard objects into the pressure output hole, and the diaphragm of the flush membrane transmitter cannot be touched by hand or anything else.
5. This product is a precision primary measuring instrument. It is strictly prohibited to throw, forcefully clamp, disassemble, or poke the pressure hole with sharp metal tools.
6. Instruments should be installed in ventilated, dry, non corrosive, and shaded areas as much as possible. If the on-site environment is harsh, appropriate measures should be taken to protect the instruments.
7. If the output is abnormal, stop the machine for inspection. If it is a product quality problem, return it to our factory for repair and exchange along with the warranty repair card and user manual.
8. Non professionals are not allowed to open the instrument circuit board or modify other devices.
7、 Selection Guide
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P400 Pressure Transmitter Selection Guide |
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P40 |
1 |
Conventional pressure transmitter |
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2 |
Non standard pressure transmitter |
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monitor |
/ |
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No display |
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S |
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With display |
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range |
-1M |
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1MPa |
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-（.） |
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Fill in as needed |
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output signal |
-mA |
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4~20mA |
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-4R |
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RS485 |
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precision |
-B |
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0.25%FS |
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-C |
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0.50%FS |
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threaded interface |
-M20 |
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M20*1.5 |
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-（.） |
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Fill in as needed |
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-（.） |
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Special requirements |
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Example: P401S-1M-MA-B-M20-24V complete model
technical support:
Fax:
http://www.xssensor.com
Address: No. 4 Xiangyang Street, Shayao Community, Shijie Town, Dongguan City, Guangdong Province
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