Q1: Does EM500-PT100 have explosion-proof certification? What is the material of PT100 cable? Can it be flame retardant? What is the working temperature?
Answer: There is currently no explosion proof certification. The material of PT100 cable is Teflon wire, the working temperature is -200~290℃ and the flame retardant grade of the cable is VW-1.
Q2: Can EM500-UDL work in the fog or rain day?
Answer: Yes, the ingress protection is IP67, which can effectively eliminate interference.
Q3: Does the temperature will effect the measured value of EM310-UDL?
Answer: Yes, since the ultrasonic as a kind of sound wave, the propagation speed is also affected by temperature. When there is a rapid change in temperature, the measured value will have a misalignment, so it's recommended to install the sensor in the shade place and avoid rapid temperature changes.
Q4: Will the Milesight LoRaWAN nodes join to new Network Server automatically after we switch the Network Server?
Answer: Yes, with rejoin mode is enabled, the sensor will send a specific number of LinkCheckReq MAC packets to the network server regularly to validate connectivity; If there is no response, the device will re-join the network.
Q5: What is the minimum supply voltage for AM102/AM107? And above which minimum supply voltage does your sensor work?
Answer: The minimum supply voltage is 3VDC, the range of voltage is 3-5VDC.
Q6: Questions about EM500-PP
1、Is there any restrictions on the gas that can be measured?
2、Whether the pressure measurement is temperature-compensated?
3、The datasheet states a sensor accuracy, and which temperature this accuracy rating is valid for?
4、Which exact LoRaWAN version is supported?
5、How the accuracy changes after long-term use?
Answer:
1、Yes, EM500-PP can be used to measure non-corrosive gas pressures.
2、Yes, it supports temperature compensated.
3、The PP sensor temperature is -10°C to +70°C.
4、LoRaWAN version 1.0.3 is supported.
5、 Generally, the probe will have a certain accuracy deviation after long-term use, but EM500-PP also supports Numerical calibration, we can calibrate it via NFC.