Set with parameters such as alarm enable, limit values, delay, dead zone, maximum range, minimum range, number of decimal places, upload frequency, acquisition frequency, and change alarm.
LED indication：Reset indication, configuration mode indication, network access indication, data acquisition indication.
Four-and-a-half-digit LCD display：temperature data, battery capacity chart, limit alarms, etc.
Adjustable installation direction：adjusted by connecting to the on-site pipeline valve through a union or adapter.
Set with parameters such as alarm enable, limit values, delay, dead zone, maximum range, minimum range, number of decimal places, upload frequency, acquisition frequency, and change alarm.
LED indication：Reset indication, configuration mode indication, network access indication, data acquisition indication.
Four-and-a-half-digit LCD display：pressure data, battery capacity chart, limit alarms, etc.
Adjustable installation direction：adjusted by connecting to the on-site pipeline valve through a union or adapter.
Performance index
Working environment temperature: -40 to 70℃.
Environmental humidity: 0-95%RH, no condensation.
Protection grade：IP68.
Explosion-proof mark: Ex ib II C T4 Gb, Qualification Certificate：CE18.2230X.
Power supply: ER34615 lithium thionyl chloride battery(enforce standards: SJ52278/1)，two primary cells are connected in parallel. Capacity: 3.6V 38Ah. Battery connector SM-2P（receptacle: Pin 1 positive, pin 2 negative) is connected to the instrument. Power supply voltage range: 3.0V～3.6VDC.
Battery continuous working time：≥1 year（temperature collection frequency: 1times/min. Communication frequency: 1 times/h）.
Battery replacement method：open the back cover and quickly replace it through the standard SM-2P interface.
Long-term stability：drift，±0.1%FS/ year.
Measurement performance：range: 0～150℃、0～300℃、-50～500℃, accuracy: 0.5％F.S, (It can be customized according to actual needs), comply with the relevant technical standards of GB/T 28473.2 and JJF1183.
Temperature sensor: PT100 platinum resistance packaging, temperature overload capacity 150%FS.
Process connection interface：Probe type process connection thread M20X1.5，surface mount sensors are installed using clamps(The size of the clamp can be customized)，Clamp material is made of 304 stainless steel，The length is more than 1 meter and connected with a metal hose.
Communication method：NB-IOT or 4G（Compatible with 3G/2G）.
Communication protocol: follow the “Communication Protocol of Cellular Network Wireless Temperature Transmitter” to achieve the access of the DMZ server in the oilfield.
Online debugging and setting functions：Under the condition of online installation without uninstallation, the sensor instrument panel can be debugged and set through the miniUSB interface of the computer. Set the data content included：
Remote communication working parameters：Server IP address and port number.
Measure working parameters：alarm enable, limit values, delay, dead zone, maximum range, minimum range, number of decimal places, upload frequency, acquisition frequency, and change alarm.
After the instrument is powered off, set data retention.
Online upgrade：It is capable of being installed without uninstallation, and can be operated by a computer through the configured serial port.
LCD display：LCD display area: L × W =45×35mm，base color: green. The displayed content includes real-time measurement values, temperature units, instrument ranges, battery power, voltage, and signal strength.The decimal point of the real-time measurement value can be set，2 decimal places are reserved by default.
Instrument housing：aluminum alloy material，the sealing ring (gasket) of the case is made of silicone rubber，apply Vaseline to the front and back cover threads, the dial diameter is 60mm and the appearance color code is RAL5007.
Outline size：L × W × H =150×130×235mm（MAX）（The probe length is not included）
Sampling interval： 1～60min.
Sending interval：5～1440min.
Dimensions（In mm. 1mm=0.03937 inches）
SM39TWB Front panel and rear panel function diagrams
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