Products Description
The PM450 wireless pressure transmitter is suitable for pressure monitoring in the production, storage and transportation processes of oil wells and water injection wells in the petroleum industry. It adopts a low-power wireless communication method, eliminating the need for wiring, thus enabling faster, safer and more convenient installation. For wireless communication, it uses the 2.4G ZigBee protocol, which features strong anti-interference capability, with 16 physical channels optional and up to 65,535 network IDs configurable, ensuring excellent networking performance. Additionally, there is a matching wireless switching device that can convert multiple wireless pressure signals into standard MODBUS signals and transmit them via Ethernet or serial ports. It has wide-ranging applications when connected to measurement and control systems.
Product Features
● Two capacitance methods (Solar rechargeable batteries, 38000mAh disposable battery)
● 5-digit display: Display mode is 5-bit LCD
● Multiple transmission modes: Including Lora, 4G, NB-IOT, GPRS
● Remote calibration: The upper and lower limits, sampling interval, reporting time interval, etc. can be set casually and remotely
Product Specification
| Range | -0.1 MPa... 0 kPa ~ 10 kPa... 100 MPa |
| Overload Capacity | ≤ 2x FS for pressure below 10 MPa; ≤ 1.5x FS for 10 MPa and above |
| Accuracy | 0.1% FS (customized), 0.25% FS (typical), 0.5% FS (maximum) |
| Long-Term Stability | ± 0.1% FS/year (typical), ± 0.2% FS/year (maximum) |
| Operating Environment | Temperature: -40 ℃ ~ 75 ℃; Humidity: ≤ 97% RH |
| Display | 4-digit LCD display with 0 ~ 3 decimal places configurable |
| Power Supply | 3.6V lithium battery |
| Transmission Power | ≤ 40 mW |
| Reporting Period | Configurable from 1 minute to 12 hours |
| Communication Distance | ≥ 200m; 2-5km (LoRa) |
| Output Signal | Zigbee/LoRa/4G/RTU |
| Process Interface | Customizable according to customer requirements |
| Protection Rating | IP66 |
| Explosion-Proof Rating | Ex d IIC T5 Gb |
| Product Weight | 2000g (net weight) |
Product Dimensions
Product Features
● Two capacitance methods (Solar rechargeable batteries, 38000mAh disposable battery)
● 5-digit display: Display mode is 5-bit LCD
● Multiple transmission modes: Including Lora, 4G, NB-IOT, GPRS
● Remote calibration: The upper and lower limits, sampling interval, reporting time interval, etc. can be set casually and remotely
Product Dimensions
Product Specification
| Range | -0.1 MPa... 0 kPa ~ 10 kPa... 100 MPa |
| Overload Capacity | ≤ 2x FS for pressure below 10 MPa; ≤ 1.5x FS for 10 MPa and above |
| Accuracy | 0.1% FS (customized), 0.25% FS (typical), 0.5% FS (maximum) |
| Long-Term Stability | ± 0.1% FS/year (typical), ± 0.2% FS/year (maximum) |
| Operating Environment | Temperature: -40 ℃ ~ 75 ℃; Humidity: ≤ 97% RH |
| Display | 4-digit LCD display with 0 ~ 3 decimal places configurable |
| Power Supply | 3.6V lithium battery |
| Transmission Power | ≤ 40 mW |
| Reporting Period | Configurable from 1 minute to 12 hours |
| Communication Distance | ≥ 200m; 2-5km (LoRa) |
| Output Signal | Zigbee/LoRa/4G/RTU |
| Process Interface | Customizable according to customer requirements |
| Protection Rating | IP66 |
| Explosion-Proof Rating | Ex d IIC T5 Gb |
| Product Weight | 2000g (net weight) |
