Is the DG1300-BZ-B-2-10-CJ-AE pressure transmitter display abnormal? Don’t worry! This article will introduce 4 professional troubleshooting methods in detail to help you quickly identify the causes of faults in diffused silicon liquid and gas pressure sensors and resolve the problems, ensuring stable equipment operation.

I. Definition and Overview: Working Principle of the Diffused Silicon Pressure Transmitter

The DG1300-BZ-B-2-10-CJ-AE pressure transmitter adopts diffused silicon piezoresistive sensing technology, converting liquid or gas pressure into electrical signals through the piezoresistive effect of the silicon crystal. Its core components include the sensing element, signal conditioning circuit, and protective housing structure. When the pressure of the measured medium acts on the sensor, the Wheatstone bridge outputs a millivolt-level signal proportional to the pressure, which is amplified and temperature-compensated before outputting a standard 4-20mA or 0-10V signal. This model features high accuracy of 0.5%FS and a wide operating temperature range of -20℃~85℃, making it especially suitable for process control in industries such as petroleum and chemicals.

II. Detailed Explanation of 4 Professional Troubleshooting Methods

1. Power Supply and Signal Loop Inspection

Use a multimeter to measure whether the supply terminal voltage is stable within the 24VDC±10% range (for two-wire models), and check whether the loop current is within the normal 4-20mA range. If zero drift is found in the HTJ-HTJ100 pressure transmitter, focus on checking power grounding interference. It is recommended to use shielded twisted-pair cable and ensure single-point grounding. For three-wire models such as SK-DBS316E1ERC2L-2m, it is also necessary to verify whether the impedance between the signal wire and the power ground is normal.

2. Sensor Body Diagnosis

After disconnecting the process connection, apply a known pressure to the PT124B-210-1MPa-G1/2 pressure transmitter using a pressure pump, and compare the difference between the displayed value and the standard pressure gauge. If the error exceeds the accuracy class (such as 0.5%FS), perform zero/span calibration according to the NS-I pressure transmitter manual. Pay special attention to diaphragm blockage caused by medium crystallization, and the sensing element can be cleaned with alcohol.

3. Process Connection Troubleshooting

Check whether there are air bubbles or condensate accumulation in the impulse line of the KYB-800 pressure transmitter. For gas measurement, the impulse line should be kept inclined upward, while for liquid measurement it should be inclined downward. Confirm that the sealing gasket of the G1/2 threaded connection has not aged or deformed. Referring to the installation specifications of the LD-108-3PBA793 pressure transmitter, the torque should be controlled between 15-20N·m.

4. Environmental Factor Analysis

Record the temperature and humidity data of the environment where the SMP131-TLD-L105GS-D1-F-53-4G15 pressure transmitter is located. High temperature may cause drift of electronic components, and humidity exceeding 85%RH will cause circuit corrosion. In places with heavy vibration, shock-absorbing brackets should be installed, and in areas with strong electromagnetic interference, check whether the grounding resistance of the metal housing is ≤4Ω.

III. Comparative Analysis of Technical Performance

IV. Standard Certification and Maintenance Specifications

All diffused silicon liquid and gas pressure sensors have passed the GB/T 17614-2018 standard certification for transmitters used in industrial process control systems, and explosion-proof models have additionally obtained Ex ia IIC T6 Ga certification. It is recommended to carry out verification every 6 months in accordance with JJG 882-2019 regulations, and use the FLUKE 754 process calibrator to perform three-point calibration (0%,50%,100% range).

V. Why Choose Xi’an Shenghongchuang

As a national high-tech enterprise, we have more than 10 years of accumulated pressure sensing technology experience, and all products undergo 72-hour aging tests before leaving the factory. We provide technical consultation, rapid repair, and calibration services for the full series of products such as DG1300-BZ-B-2-0.8-CJ-AE, with on-site issue response within 24 hours. Visit our official website to obtain the latest version of the diffused silicon liquid and gas pressure sensor manual, or call 400-xxx-xxxx to obtain a customized solution.