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HPTM280 protective temperature-pressure integrated transmitter adopts diffused silicon piezoresistive pressure sensor with high stability and reliability and PT100 as signal measuring element, and through automatic test and laser resistance adjustment process for wide temperature range performance compensation, can get liquid level and temperature signals at the same time.The product has been strictly screened by the process of long-term aging and stability assessment, and its performance is stable and reliable.The product can be used in the situation where the working environment is bad and the pressure is required to be displayed on the spot. It is widely used in the pressure measurement of mechanical, metallurgical, petrochemical, electric power and other industrial processes.
Features
For aluminum alloy material, electronic shell IP65 protection grade
Field display, 4~20mADC and PT100 output
Reverse polarity protection and instantaneous overcurrent overvoltage protection measures
Zero and full range is adjustable
Strong anti-interference and high long-term stability
Technical Parameters
Measuring Medium:Compatible with 304, 316L stainless steel all kinds of liquid, gas or steam
Pressure Range:-100kPa…0～1kPa…100MPa
Temperature Range:-20~100℃
Overload:1.5 times of full range
Pressure Accuracy:±0.25%FS（Optional）；±0.5%FS（Max.）
Temperature Accuracy:±0.5%FS
Long-term Stability:±0.1%FS/year（Optional）；±0.2%FS/year（Max.）
Zero Temperature Coefficient:±0.03%FS/℃(Reference 25℃）
Full Temperature Coefficient:±0.03%FS/℃(Reference 25℃）
Working Temperature:-20~100℃
Storage Temperature:-40~120℃
Supply:24VDC(12～30V)
Output:Two-way 4~20mA、4~20mA + PT100 or RS485
Load Resistance:≤(U-12)/0.02Ω
Insulation Resistance:100MΩ，500VDC
Shell Protective:IP65
Display:LCD display,only pressure values
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