APT-Pressure Transmitter with automatic compensation
The digital pressure transmitter uses a fully welded diffusion silicon piezoresistive sensor as the sensor and sensitive element,realize accurate measurement and transmission of pressure changes for liquids, gases, vapors, and other media.
The pressure sensor of the digital pressure transmitter is a fully welded stainless steel body with an internal solid-state pressure sensitive chip and a stainless steel isolation diaphragm.It uses a digital microprocessor internally, eliminating the traditional adjustment of movable components, making the digital pressure gauge have a longer service life.LCD digital display avoids errors caused by traditional analog display instruments during the reading process.The zeroing of displayed values can be achieved simply by using the buttons on the panel.The digital pressure transmitter adopts a low-power processing module, which is converted into voltage changes through signal processing circuits. Finally, it is converted into a standard 4-20mA signal or pulse signal output, RS485 protocol, or ZIGBEE wireless communication.
Characteristic:
1. Fully intelligent and digitization
2. All aluminum die cast shell, stainless steel connectors (contact medium), electrostatic spray protective layer (hard and durable)
3. Environmental temperature, zero and full range automatic compensation
4. Extremely stable, ensuring that the basic error absolute value does not exceed the maximum range within 12 months
5. Power, input, and output are highly isolated
6. Pulse output, 2-wire (4-20) mA, RS485 communication, ZIGBEE wireless communication
7. Complies with the relevant electromagnetic interference standards of the International Electrotechnical Commission IEC61000
Dimension:
Main technical specifications:
1. Accuracy:±0.025%x F*S、±0.05%x F*S、±0.1%x F*S、±0.5%x F*S、±1.0%x F*S、
2. Linearity:0.025%、0.05%、0.1%、0.5%(full-scale range)
3. Temperature drift：±0.015%x F*S/℃
4. Stability:15years±0.2%URL、10years±0.2%URL
5. Response time：≤100ms
6. Range ratio:≥100：1
7. Ambient temperature：(-50+85)℃
8. Ambient humidity：≤95%RH
9. Explosion proof level：Flameproof Exd IIBT4,Flameproof Exd IIBT6
10. Alarm:High pressure and low pressure alarm functions
11. Anti-electromagnetic interference:Complies with the requirements of IEC61000-4-4:1995 for Class III industrial site electromagnetic interference resistance
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