GPRS wireless pressure sensor/wireless pressure transmitter
Overview
The intelligent wireless pressure transmitter is a low-power intelligent instrument with wireless communication function. It uses advanced industrial grade MCU as the core, high-quality sensors as the acquisition front-end, combined with industrial grade wireless GPRS data module, and utilizes China Mobile's mature GPRS network to achieve wireless transmission of on-site instrument data to the cloud. The instrument reports data at set intervals, and customers can remotely configure and view the instrument data through a web page. The uploaded and distributed data are stored in the database for easy later retrieval. The instrument data can be obtained by logging in the relevant website through the Internet PC or mobile terminal, and the collected data can be counted and analyzed to form reports and data curves, which are intuitive, accurate and efficient. Based on the extensive coverage of GPRS public network, real-time monitoring of numerous monitoring points in a large area can be achieved, such as water pipeline pressure, high pool liquid level, environmental parameter detection, hydrological monitoring, and so on.
Product Features
GPRS network is widely applicable in various regions;
LCD real-time display;
• Power reverse protection;
Two relay outputs;
• Threshold upper and lower limit alarm function;
• Network automatic timing, automatic reconnection when disconnected;
• Key operation, can configure instruments on site;
Web based viewing and remote configuration of instruments, supporting SMS data query on mobile phones;
• It has earthquake and moisture resistance functions, and is suitable for outdoor environments.
performance metrics
Range: 0MPa~0.1MPa... 10MPa
Power supply: solar power supply/15V~30V DC (subject to the instrument nameplate identification)
Accuracy: ± 0.5% FS
Pressure type: gauge pressure/absolute pressure/sealed gauge pressure
Display: 6-digit 8-segment digital LCD
Output signal: LCD on-site display, GPRS wireless signal transmission
Button: 3 buttons
Electrical connection: 6-core cable (power supply and relay)
Weight: Approximately 1.6kg
Electromagnetic compatibility: GB/T 17626.2/4-2006
Storage temperature: -30 ℃~80 ℃
Pressure sensing film: stainless steel 316L
Working temperature: -20 ℃~70 ℃
Relative humidity: 0% to 95%
Relay load: 5A/220V AC 5A/30V DC
Relay contact life:>100000 times
Long term stability: ± 0.5% FS/year
Vibration: ≤ 3g/10Hz... 150Hz (IEC 60068-2-6:2007)
Transmission distance: Suitable for places with China Mobile GPRS network coverage
Device charging
Remove the configuration cable and power connector, connect the power connector to the aviation plug cable, and connect the aviation plug connector to the device. After connecting, plug the power connector into a 220V power outlet. At this time, the power indicator on the device display screen will dynamically display, indicating that the device is charging.
Device switch on/off
When the device is working normally, it displays the collected data in real time. When the device is not in use for a long time, you can use the randomly equipped magnetic stick to click the POWER button on the display panel for 2-3 seconds, the display screen will turn off, and the device will enter a deep sleep state. Click the POWER button on the device again for 2-3 seconds, and the display screen will show the data normally, and the device will enter normal working mode. The position of the power on/off button is shown in Figure 6-1.
Device Calibration
When the device is used in a different environment and there is an error in the zero pressure value displayed under normal atmospheric pressure, the randomly equipped magnetic rod can be used to press the CALIBRATE button for 2-3 seconds to perform zero calibration on the device. At this time, the first field of the display screen will show "C", indicating that the zero calibration of the device is successful.
◎ Adopting low-power processors
Embedded precision clock, automatic timing, synchronized with Internet time
◎ Embedded TCP/IP protocol ◎ High precision internal AD detection of temperature changes
◎ Specialized upper computer software for setting parameters ◎ Supports data storage function
◎ Embedded watchdog, no crash ◎ Powered by lithium-ion battery
◎ Supports deep sleep and button wake-up function ◎ Has data storage and data resend functions
◎ Equipped with low battery level SMS alarm function ◎ Shell protection level: IP65
◎ Standard industrial 5-core waterproof aviation plug ◎ High precision, anti-interference, maintenance free
◎ It has functions of anti reverse connection, anti surge, anti shock, moisture-proof, rainproof, and anti harmful gas.
Selection Tips
1. When selecting, please pay attention to the compatibility between the tested medium and the part in contact with the product.
2. The minimum basic range for absolute pressure products is 0.1 MPa.
3. The standard cable for connecting the power supply and relay is 1 meter.
4. To improve product reliability, it is recommended that users install lightning protection devices on site and ensure reliable grounding of the product.
5. Special requirements, please discuss with our company and indicate them in the order.
