China Temperature Humidity Sensor Module Arduino Temperature Sensor

H01 Temperature and Humidity Sensor Module for Arduino♦ Wall mounting, 86 type shell, magnetically mounted,
LCD display
♦ Special circuit, high accuracy
♦ RS485 signal output, Modbus-RTU protocol
♦Linearity responds, integrated temperature and humidityTECHNICAL INFORMATIONTemperatureHumidityMeasuring range-20ºC ~ 60ºC0%~ 100%Accuracy≤±0.3ºC (at 25ºC)≤±0.1%RH (25ºC, 30%RH~80%RH)Stabilization<0.1ºC/year<1%RH/yearResponse time≤15s (1m/s)≤4s (1m/s)OutputRS485Power supply5V~ 24V DCSensorHT001Power consumption<240mWWorking-20ºC~60ºCAnti-surge voltage±2000VStorage temperature-40ºC~80ºC (without condensationConnectionRJ45 connectorHousing materialEngineering Plasticswiring
Order of RJ45 connector: 1:V+ 2:V- 3: 485A 4:485B
Communication Protocol
BAUD: 9600 8 data bits, no parity
Board instructions
1. Temperature data show
2. Humidity data show
3. Other parameter show
4. Function buttonMounting and fix the product
General problem and solution
The device cannot be connected to the PLC or computer
Possible reason:
1) The Heating, Refrigeration & Temperature Control computer has many COM ports, the choice of the port is not correct
2) The device address is wrong, or the device with duplicate address exists (the factory default is all 1)
3) BHeater & Heat Exchanger aud rate, check mode, data bit, stop bit error
4) The host polling interval and wait time for reply are too short and need to be set above 200ms
5) RS485 wiring be disconnected, or A,B wire be connected oppsitely.
6) Equipment wiring is too long, or too much should be nearby power supply, plus 485 enhancer, at the same time an increase of 120Ω terminal resistance.
7) USB transfer 485 driver not installed or damaged
8) Equipment damageProduct dimension
NOTICE
The mounting direction of soleplate should be attented. Avoid the following: close proximity of the transmitter to a heating element, a cold or hot wall, direct exposure to sun rays, etc.
Be sure to cut off the power supply before mountinDental Apparatus g and changing transmitter.
If the moSecurity Guard unting surface with a large temperature difference between the measured environmental, recommend the use of stents installed moCrushing & Culling Machine re than 20cm away from the mounting surface.
It will be necessary to calibrate the transmitter when it is using above 12 month.