3151AP Absolute pressure transmitter

3151AP Absolute pressure transmitter

Product features of 3151AP Absolute pressure transmitter

1. Complete measurement range: 0-0.15kpa ~ 42MPa, multiple choices, flexible applications, and can meet the needs of most users.

2. The structure is small, firm and vibration resistant. Integrated junction box, local zero and range adjustment and LCD display configuration buttons simplify installation, calibration and operation.

3. The non-contact local zero point, range adjustment and LCD display parameter configuration buttons are designed on the transmitter shell to facilitate the field adjustment of zero point and range and the setting of required field display parameters.

4. Solid, plug-in printed circuit board and modular structure are adopted, which is helpful for troubleshooting and reducing spare parts inventory.

5. Adjustable damping improves the user's selectability.

6. Intelligent circuit, convenient for user operation.

7. It has independent anti-interference circuit and software anti-interference design, which improves the reliability of the product.

8. There is a temperature parameter sensor inside, which improves the compensation performance of the transmitter's environmental temperature. Since the sensor is in direct contact with the measured medium, the temperature information of the medium in contact with the sensor can be obtained at the same time.

9. The field digital display meter configured by the transmitter can directly display the measured pressure value, the output analog current value, the percentage value of the measured pressure corresponding to the set range, and the temperature value of the sensor body and the medium it contacts. This technology has been applied for patent.

10. The transmitter improves the fault recovery capability and greatly reduces the maintenance workload of the transmitter.

11. LCD liquid crystal display meter adopts multi parameter cycle display mode.

12. It has the HART protocol remote communication function. While the pressure measurement is realized, the temperature detection function of the sensor body and the contacted medium is added, which provides more on-site working condition information for the user and is conducive to improving the effect of process control.

13. Differential capacitance pressure sensor with all metal seal δ The innovative design of the chamber structure makes the differential pressure (pressure) and temperature measurement achieve significant improvement and good stability.

Product introduction of 3151AP Absolute pressure transmitter

3151 series intelligent pressure transmitter is a high-precision intelligent field differential pressure parameter detection instrument, which is used to measure the differential pressure, pressure and liquid level parameters of various media in the state of liquid, gas and steam, and convert the measured differential pressure parameters into 4-20mA standard electrical signals for output. At the same time, it adopts HART protocol and has the function of communicating with the manual operator or the upper computer. The transmitter has the function of output parameter configuration, It can meet the needs of different users. It can accurately measure differential pressure, liquid level, vacuum and specific gravity.

The intelligent pressure transmitter has a dust-proof structure, which is easy to install, use and adjust. The terminal block and the electronic circuit board are placed in the sealed electrical chamber on the upper part of the transmitter and separated from each other. Therefore, during field wiring, the amplifier still works in a sealed state. The transmitter has anti polarity protection measures to prevent damage to the transmitter due to power connection. The volume change during operation is less than 0.16 ml, which can prevent the measured medium liquid column from changing too much, so it is unnecessary to add a condenser or liquid level cylinder to compensate for the volume change. 316L stainless steel shall be used for the parts of the transmitter in contact with the measured medium. The surface mounted electronic components and the pluggable printed circuit board are adopted to make the fault less, the maintenance convenient, the versatility strong, the spare parts reduced, and the maintenance cost reduced.

Basic performance and main functions of 3151AP Absolute pressure transmitter

1. Measurement parameter type:

Any one of differential pressure, gauge pressure and absolute pressure

2. Measurement range:

Differential pressure: 0-0.05kpa ~ 7MPa (select sensors according to different ranges)

Gauge pressure: 0-0.15kpa ~ 42MPa (select sensors according to different ranges)

Absolute pressure: 0-40kpa ~ 7MPa (select sensors according to different ranges)

3. Medium temperature range in contact with the sensor:

-40~85℃

4. Display parameters

Measured pressure value

Output analog current value

Percentage value of the measured pressure corresponding to the set range

Temperature value of sensor body and its contact medium

5. Output signal

1) 4 ~ 20mA DC pressure parameter analog signal and pressure and temperature digital signal, using HART Protocol

2) Pressure, temperature, percentage range full digital signal, using EPA, FF, or PROFIBUS PA fieldbus protocol

6. Main configuration functions:

Zero shift, range, workload unit, damping time, out of limit alarm, output 4 ~ 20mA current calibration, write data protection, output function and factory data recovery.

Structure and principle of 3151ap absolute pressure transmitter

3151 transmitter is composed of two parts: sensor and electronic circuit board. The sensor part includes: sensitive element, direct digital capacitance circuit, temperature sensor and characteristic EEPROM; The electronic circuit board is composed of microprocessor, digital / analog signal converter, digital communication and memory EEPROM to complete the conversion of pressure signal to 4-20madc.