Introduction

When selecting the DG1300-PJ-1-2-40-CJ-GK-GZ pressure transmitter, are you confused by the complex parameters and model numbers? This article will reveal the 5 key factors in selecting a diffused silicon liquid and gas pressure sensor, helping operators avoid procurement pitfalls and ensuring that equipment performance is perfectly matched to operating conditions.

1. Compatibility Between the Measured Medium and Sensor Materials

In flow control equipment, the core of a diffused silicon liquid and gas pressure sensor lies in the compatibility between its sensing element and the measured medium. The DG1300 series uses a 316L stainless steel isolation diaphragm, which can withstand most corrosive liquids and gases, but for strong acids, strong alkalis, or high-viscosity media, special attention should be paid to the following parameters:

• Chemical properties of the medium: The Hastelloy diaphragm equipped in the PH-PH101 pressure transmitter can handle special media such as hydrofluoric acid
• Temperature impact: The silicone oil filling technology of the XMLK-C21 model can maintain stability at -40℃~125℃
• Viscosity adaptation: The flush diaphragm structure design of PT124B-210-1/4NPT can prevent blockage caused by crystallizing media

According to the GB/T 1226-2017 standard, it is recommended to conduct a 72-hour medium compatibility test before model selection. The laboratory of Xi'an Shenghongchuang Instrumentation Co., Ltd. can provide free sample testing services.

2. Accuracy Grade and Operating Condition Matching

The 0.1%FS high accuracy demonstrated by the SMP131-TLD-L356GS-D1-F-53-4M01 pressure transmitter is not necessary for every scenario. Operators need to balance cost and requirements:

Pay attention to the long-term stability indicator. The annual drift of DG1300-BZ-B-2-0.2-CJ-AA being ≤0.2% can significantly reduce calibration frequency.

3. Pressure Range and Overload Protection

The burst pressure of the PMI009-732-350GB pressure transmitter reaches 3 times the range, but the following principles should be followed during model selection:

1. For conventional operating conditions, choose 1.5 times the upper limit of the range
2. For pulsating pressure conditions, a 2 times margin is required
3. The GT-V explosion-proof model is ATEX certified and suitable for the oil and gas sector

Xi'an Shenghongchuang's intelligent algorithm can automatically identify pressure spikes, and the overload protection response time of the XMLK-C21 model is <1ms.

4. Output Signal and System Integration

The signal output method of a diffused silicon liquid and gas pressure sensor directly affects control system compatibility:

• 4-20mA analog signal: PH-PH101 is suitable for legacy PLC systems
• RS485 digital output: The SMP131 series supports the Modbus protocol
• Wireless transmission: The DG1300-CJ-W model is equipped with a LoRa module

The pressure transmitter of PT124B-210-1/4NPT provides HART protocol bidirectional communication mode to meet smart factory requirements.

5. Environmental Adaptability and Installation Methods

The IP68 protection rating of the AT-131 pressure transmitter solves the following installation challenges:

1. Humid environments: silicone sealing ring + laser welding process
2. Vibration conditions: M20×1.5 thread + anti-vibration gasket combination
3. Confined spaces: GT-V miniaturized design with only Φ18mm

According to the ISO 9001:2015 production system, all models have passed 2000 mechanical shock tests.

Summary and Action Guide

When selecting diffused silicon pressure transmitters such as DG1300-PJ-1-2-40-CJ-GK-GZ, it is necessary to comprehensively consider five major factors: medium characteristics, accuracy requirements, pressure range, signal type, and environmental conditions. As a national high-tech enterprise, Xi'an Shenghongchuang Instrumentation provides:

• 72-hour rapid sample testing service
• Professional technical team support for model selection
• 3-year extended warranty commitment

Contact our engineers now to obtain a customized solution, or visit our official website to download the full version of the Pressure Transmitter Selection White Paper.