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KJT GPRS type wireless pressure sensor/wireless pressure transmitter

Wireless sensor

KJT GPRS type wireless pressure sensor/wireless pressure transmitter

  • Measuring range:0MPa~0.1MPa...10MPa
  • Accuracy:±0.5%FS
  • pressure type:Gauge pressure/absolute pressure/sealed gauge pressure
  • show:6-digit 8-segment digital LCD
  • output signal:LCD on-site display, GPRS wireless signal transmission
  • button:3 buttons
  • Product Detail

KJT Intelligent Wireless Pressure Transmitter is a smart instrument with low power consumption and wireless communication function. It takes an advanced industrial-grade MCU as the core and high-quality sensors as the collection front-end. It is combined with an industrial-grade wireless GPRS data module to utilize China Mobile's mature GPRS network enables wireless transmission of field instrument data to the cloud.

The instrument reports data according to the set interval. Customers can realize remote instrument configuration and data query through the Web page. All uploaded and distributed data are stored in the database for later query. You can obtain instrument data by logging into the relevant website through an Internet PC or mobile terminal, and realize statistics and analysis of the collected data to form reports and data curves, which are intuitive, accurate and efficient.

Based on the extensive coverage of the GPRS public network, real-time monitoring of many monitoring points in a large area can be achieved, such as water pipe network pressure, high pool liquid level, environmental parameter detection, hydrological monitoring, etc.

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○ Product features

GPRS network is applicable to a wide range of areas;

LCD real-time display;

Power supply reverse connection protection;

Two relay outputs;

Upper and lower threshold alarm functions;

Automatically adjust the time when connected to the Internet, and automatically reconnect when disconnected;

Key operation, the instrument can be configured on site;

View and remotely configure instruments on the Web, and support mobile phone text message query data;

It has shockproof and moisture-proof functions and is suitable for outdoor environments.


Performance
Measuring range 0MPa~0.1MPa...10MPa
Accuracy ±0.5%FS
pressure type Gauge pressure/absolute pressure/sealed gauge pressure
show 6-digit 8-segment digital LCD
output signal LCD on-site display, GPRS wireless signal transmission
button 3 buttons
Electrical connections 6-core cable (power supply and relay)
weight About 1.6kg
Electromagnetic Compatibility GB/T 17626.2/4-2006
storage temperature -30℃~80℃
pressure sensitive diaphragm Stainless steel 316L
Operating temperature -20℃~70℃
Relative humidity 0%~95%
Relay load 5A/220V AC 5A/30V DC
Relay contact life >100,000 times
long term stability ±0.5%FS/year
vibration ≤3g/10Hz...150Hz(IEC 60068-2-6-2007)
Transmission distance Available anywhere covered by China Mobile GPRS network


  ○ Turn the device on and off

When the device is working normally, the collected data is displayed in real time. When the device is not used for a long time, you can use the supplied magnetic stick to click the POWER button on the display panel for 2-3 seconds. The display will turn off and the device will enter a deep sleep state. Click the POWER button of the device again for 2-3 seconds, the display will display data normally, and the device will enter normal working status. The position of the power on/off button is shown in Figure 6-1.

  ○ Device calibration

  When the device changes the use environment and displays an error in the zero-point pressure value under normal atmospheric pressure, you can use the supplied magnetic rod to press the CALIBRATE button for 2-3 seconds to perform zero-point calibration of the device. At this time, the first field of the display "C" is displayed, indicating that the zero point calibration of the device is successful.

  Adopt low power consumption processor

  Built-in precision clock, automatic time adjustment, synchronized with Internet time

  Embedded TCP/IP protocol.

  High-precision internal AD detects temperature changes

  Dedicated host computer software setting parameters

  Support data storage function

  Built-in watchdog, no crash

  Lithium-ion battery powered

  Support deep sleep, key wake-up function

  With data storage and data reissue functions

  With low battery power SMS alarm function

  Shell protection grade: IP65

  Standard industrial 5-core waterproof aviation plug.

  High precision, anti-interference, maintenance-free

  It has the functions of anti-reverse connection, anti-surge, anti-shock, anti-moisture, anti-rain, anti-harmful gas.

  ○ Selection tips

  1、When selecting, please note that the medium being measured must be compatible with the contact parts of the product.

  2、The minimum basic measuring range of absolute pressure products is 0.1MPa.

  3、The standard power and relay connection cable is 1 meter.

  4、In order to improve product reliability, it is recommended that users install lightning protection devices on site and ensure that the product is reliably grounded.

  5、For special requirements, please discuss with our company and indicate them in the order.


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