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Introduction
1.
R718C is Netvox ClassA type detection temperature equipment based on LoRaWAN open protocol.
R718C can be connected to type K (R718CK), J type thermocouple (R718CJ) and other types of
thermocouples according to requirements, compatible with LoRaWAN protocol.
R718CJ (nickel-chromium-copper-nickel thermocouple): the temperature measurement range is
-210~1200 C. J-type thermocouple has good linearity, large thermoelectric potential, high sensitivity,
good stability and uniformity, and can be used for vacuum. , oxidizing, reducing and inert
atmosphere.
R718CK (nickel-chromium-nickel silicon thermocouple): the temperature measurement range is
-50~1370 C, with good linearity, large thermoelectric potential, high sensitivity, stability, can not be
used directly at high temperature for sulfur, reduction, reduction, in an alternating atmosphere or in a
vacuum. It is also not recommended for weak oxidizing atmospheres.
R718CT (copper-copper-nickel thermocouple): the temperature measurement range is -260~400 C.
When it is used in the temperature range of -200~0 C, the stability is better.
R718CE (nickel-chromium-copper-nickel thermocouple): the temperature measurement range is
0~600 C, the thermoelectric potential of E-type thermocouple is large, and the sensitivity is the
highest among all thermocouples. It should be used in low humidity environment.
LoRa Wireless Technology:
LoRa is a wireless communication technology dedicated to long distance and low power
consumption. Compared with other communication methods, LoRa spread spectrum modulation
method greatly increases to expand the communication distance. Widely used in long-distance,
low-data wireless communications. For example, automatic meter reading, building automation
equipment, wireless security systems, industrial monitoring. Main features include small size, low
power consumption, transmission distance, anti-interference ability and so on.
LoRaWAN:
LoRaWAN uses LoRa technology to define end-to-end standard specifications to ensure
interoperability between devices and gateways from different manufacturers.
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