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  • R718IJK-Wireless Multi-Sensor Interface for 0-24V ADC, Dry Contact and 4-20mA Sensors

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R718IJK-Wireless Multi-Sensor Interface for 0-24V ADC, Dry Contact and 4-20mA Sensors

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This device is used for detecting 4mA-20mA signal, 0-24V DC ADC samples and dry contact features which employs SX1276 wireless communication module . R718IJK can detect 4mA-20mA signal, 0-24V DC ADC sampling signal and dry contact input signal, and send the detection signal data to the gateway, and display the collected data in the monitoring platform.

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This device is used for detecting 4mA-20mA signal, 0-24V DC ADC samples and dry contact features which employs SX1276 wireless communication module . R718IJK can detect 4mA-20mA signal, 0-24V DC ADC sampling signal and dry contact input signal, and send the detection signal data to the gateway, and display the collected data in the monitoring platform.

  • Using SX1276 wireless communication module       
  • 2 ER14505 batteries AA SIZE (3.6V / section) power supply in parallel       
  • Protection grade IP65       
  • The base is equipped with a magnet, which can be attracted to iron objects       
  • 4mA-20mA signal detection       
  • Dry contact       
0-24V ADC detection (the red wire is connected to the positive 24V, the black wire is connected to the negative GND , be careful not to be reversed.)
Electric:

Power supply

2 ER14505 lithium batteries
(3.6 V, 2400mAh / section) in parallel

Battery life

Battery life of 5 years (condition: ambient temperature 25 ℃, report once every 15min, txpower = 20dBm, LoRa spreading factor SF = 10)

Sleep current

22.7 uA

Wake-up current

6.3mA @ 3.3V

RF receiving current

11 mA @ 3.3V

RF emission current

120mA @ 3 .3 V

Battery measurement  accuracy

± 0.1V

* Specific electrical characteristics will vary depending on the power supply voltage


Frequency:

Frequency range

863MHz-928MHz   470MHz-510MHz

Power output

US915   20dbm;
AS923   16dbm;
AU915   20dbm;
CN470   19.15dbm;
EU868   16dbm;
KR920   14dbm;
IN865    20dbm;

Receive sensitivity

-136dBm
(LoRa, Spreading Factor = 12, Bit Rate = 293bps);
-121 dBm
( FSK, Frequency deviation = 5kHz, Bit Rate = 1.2kbps)

Antenna type

Built-in antenna

Communication distance

Up to 10 km
(visible straight - line barrier-free transmission distance, the actual transmission distance depends on the environment )

Data transfer rate

0.3kbps ~ 50k bps

Modulation system mode

LoRa / FSK (Note: choose one of them)

Supported LoRaWAN band

EU863- 870,US 902-928,AU915-928,KR920-923,
AS923,CN470-510 (Note: the frequency band is optional,
it needs to be configured before delivery)


Physical:

Size

L: 112 mm * W: 88.19 mm * H: 32 mm

Body weight

Approximately 141 g

Ambient temperature range

-20℃ ~ 55℃

Ambient humidity range

<90% RH (non-condensing)