3151DP series differential pressure transmitter Shanghai Automation Instrument Factory

1、 Product Features

1. Complete measurement range: 0-0.15kPa~42MPa, with multiple options and flexible applications, can meet the needs of the vast majority of users.

2. Compact, sturdy, and vibration resistant structure. The integrated junction box, local zero and range adjustment, and LCD display configuration buttons simplify installation, calibration, and operation.

3. Non contact local zero and range adjustment and LCD display parameter configuration buttons are designed on the transmitter housing, which facilitate on-site adjustment of zero and range and setting of required on-site display parameters.

4. Adopting solid, plug-in printed circuit boards and modular structures can help with troubleshooting and reduce spare parts inventory.

5. Adjustable damping improves user selectivity.

6. Intelligent circuit, convenient for user operation.

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

8. It has an internal sensor for measuring temperature parameters, which improves the compensation performance of the transmitter for environmental temperature effects. As the sensor is in direct contact with the measured medium, it can also obtain temperature information of the medium in contact with the sensor.

The on-site digital display table of the transmitter configuration can directly display the measured pressure value, output analog current value, percentage value of the set range corresponding to the measured pressure, and temperature value of the sensor body and its contact medium. This technology has been applied for.

10. The transmitter has improved its fault recovery capability, greatly reducing the maintenance workload of the transmitter.

11. The LCD display meter operates in a multi parameter cyclic display mode.

12. It has the remote communication function of HART protocol, which not only realizes pressure measurement, but also increases the temperature detection function of the sensor body and the contacted medium, providing users with more on-site working condition information, which is beneficial for users to improve the effectiveness of process control.

13. The innovative design of the delta chamber structure of the differential capacitance pressure sensor with full metal sealing has achieved significant improvements and good stability in differential pressure (pressure) and temperature measurement.

3151DP series differential pressure transmitter Shanghai Automation Instrument Factory

2、 Product Introduction

The 3151DP series differential pressure transmitter has a dust-proof structure, making installation, use, and calibration easy and simple. The wiring terminals and electronic circuit board are placed in a sealed electrical chamber above the transmitter, and are separated from each other. So when wiring on site, the amplifier is still working in a sealed state. The transmitter has reverse polarity protection measures to prevent damage to the transmitter due to power connection. The volume change during operation is less than 0.16 milliliters, which can prevent excessive changes in the liquid column of the measured medium. Therefore, there is no need to add a condenser or liquid level cylinder to compensate for the volume change. The components of the transmitter in contact with the measured medium are made of 316L stainless steel material. The use of surface mount electronic components and plug-in design manufacturing of printed circuit boards results in fewer faults, easier maintenance, strong universality, reduced spare parts, and lower maintenance costs.

3151DP series differential pressure transmitter

Structure and Principle

The 3151DP series differential pressure transmitter consists of a sensor and an electronic circuit board. The sensor part includes sensitive components, direct digital capacitive circuits, temperature sensors, and characteristic EEPROM; The electronic circuit board consists of several parts such as microprocessor, digital/analog signal converter, digital communication, and EEPROM memory, which complete the conversion of pressure signals to 4-20mADC.

Functional block diagram of transmitter

2-inch pipe installation bracket 2-inch pipe installation flat bracket

The transmitter is mounted on a bracket on a 2-inch pipeline. The transmitter is vertically mounted on a bracket on a 2-inch pipeline

Carbon steel structure, equipped with carbon steel U-bolts Carbon steel structure, equipped with carbon steel U-bolts

Polyurethane Cool Spray Paint

Panel installation bracket

A bracket used for installing transmitters on panels or walls

Carbon steel structure, equipped with carbon steel bolts

Polyurethane Cool Spray Paint

3151DP series differential pressure transmitter

3、 Selection code table (if conditions permit, replace with selection reference)