
Pressure transmitter / Wireless digital pressure transmitter (large housing) SM39PWB
Product Categories Pressure transmitter
Pipeline pressure testing has been widely used in major oil and gas fields and other industrial pressure testing fields across the country; Explosion-proof design: explosion-proof aluminum shell, circuit board system is intrinsically safe; Protection level: IP67, fully sealed and waterproof design; Zigbee communication, it can be configured and tested by a coordinator or router in the network; 4.5-digit LCD display: pressure data, battery voltage; LED indication: reset indication, configuration mode indication, network access indication, data acquisition indication; Adjustable installation direction: connected to the on-site pipeline valve through a live joint or adapter, the direction can be adjusted.
1. Features
- Pipeline pressure testing has been widely used in major oil and gas fields and other industrial pressure testing fields across the country;
- Explosion-proof design: explosion-proof aluminum shell, circuit board system is intrinsically safe;
- Protection level: IP67, fully sealed waterproof design;
- Zigbee communication, which can be configured and tested by a coordinator or router in the network;
- 4.5-digit LCD display: pressure data, battery voltage;
- LED indication: reset indication, configuration mode indication, network access indication, data collection indication;
- Adjustable installation direction: It can be connected to the on-site pipeline valve through a union or adapter, and the direction can be adjusted.
2. Performance indicators
21. Technical indicators
- Working environment: temperature, -40℃≤Tamb≤+65℃; atmospheric pressure: 80KPa~110kPa; humidity, 5%RH~95%RH
- Power supply: 3.6V battery
- Accuracy level: 0.5, 0.25, 0.1, 0.075
- Measuring principle: Piezoresistive
- Output signal: ZIGBEE
- Protection level: IP67
- Case material: cast aluminum
- Contact medium material: 316LSS, 304
- Process connection: 1/2″NPT(M), M20*1.5, R1/2
- Range: 0~ 110 Mpa (range optional)
- Weight: 1kg
- Pressure transmitter dimensions: height 210 × width 116 × depth 137
- Shengli Sihua protocol factory default well name: 123456 Network ID: 58418 Default physical channel: 13
- The factory default network ID of PetroChina A11 protocol is: 21, the default communication channel is: 19, and the default encryption is enabled is: 0.
Explosion-proof certification parameters
- Explosion-proof certificate number: CE18.2230X
- Explosion-proof mark: Ex ib ⅡC T4 Gb
- Rated voltage: 3.6V±1% Rated current: 50mA Rated power: 0.18W
3. Appearance and structure

5. Instructions for use
5.1. All transmitters are digitally calibrated, and different transmitters are completely consistent and interchangeable;
5.2. During transportation, all transmitter batteries are disconnected. When installing the pressure transmitter on site, you need to unscrew the back cover of the meter head and connect the battery. Pay attention to tighten the sheath to prevent water leakage;
5.3. To install the pressure transmitter on the pipeline, first close the valve (needle valve or gate valve) on the pipeline where the pressure transmitter is to be installed. Then there are two installation methods: (1) screw the transmitter directly into the upper port of the valve; (2) screw the union or adapter into the upper port of the valve, and then screw the transmitter into the upper port of the union or adapter. This installation method uses the addition of a union or adapter to adjust the direction. After the installation is completed, open the needle valve to confirm that there is no leakage, which means the installation is qualified;
5.4. If the temperature transmitter is not used for a long time, please open the back cover and disconnect the battery;
5.5. For detailed installation and debugging, please refer to the product operation manual.
6. Notes
6.1. The battery model used in this product has been certified for explosion-proof testing, and the battery model is ER34615H. When replacing the battery, it is prohibited to use other battery models.
6.2. The antenna housing of the product is made of plastic, which may cause potential danger of electrostatic charge! Avoid friction during use! Please wipe with a damp cloth when cleaning!