1、 Introduction to BYC07-RHT Digital Pipeline Temperature and Humidity Transmitter

The digital pipeline type temperature and humidity transmitter BYC07-RHT is professionally used for pipeline temperature and humidity measurement. Adopting imported temperature and humidity measurement units, with small drift and high accuracy. The pipeline installation method is convenient for on-site installation and adopts anti-interference circuit design, which can withstand various strong electromagnetic interferences such as on-site frequency converters; The equipment adopts a waterproof shell design, and the probe filter screen is made of 25um high-strength stainless steel material, which can ensure the entry of gas molecules and prevent dust particles and water droplets from entering. It can be applied in humid and high dust environments and is durable.

2、 Characteristics of BYC07-RHT digital pipeline temperature and humidity transmitter

1. 485 communication interface, standard ModBus RTU protocol, communication address and baud rate can be set, and the communication line can reach up to 2000 meters in length;

2. Temperature accuracy ± 0.3 ℃, humidity accuracy ± 3% RH, high accuracy, low drift;

3. The wiring terminal adopts military grade spring type screw free terminal, which can be connected with one press and one plug. Even without a screwdriver on site, the wire can be quickly connected and can adapt to wire diameters of 0.3-2.0mm;

4. Using dedicated EMC anti-interference devices, it can withstand strong electromagnetic interference on site, industrial grade processing chips, and has a wide range of applications;

5. Power supply with a wide voltage range of 10-30V, and can still work normally with long-distance centralized power supply;

3、 Technical parameters of BYC07-RHT digital pipeline temperature and humidity transmitter

4、 BYC07-RHT System Framework Diagram for Digital Pipeline Temperature and Humidity Transmitter

5、 Installation Instructions for BYC07-RHT Digital Pipeline Temperature and Humidity Transmitter Equipment

6、 Power supply and 485 signal

Wide voltage power supply can input 10-30V. When wiring the 485 signal line, be careful not to connect wires AB in reverse, and ensure that the addresses of multiple devices on the bus do not conflict.

Wiring Instructions

7、 Install and use configuration software

8、 Common problems and solutions

The device cannot connect to the PLC or computer

Possible reasons:

1) The computer has multiple COM ports, and the selected port is incorrect.

2) The device address is incorrect, or there are devices with duplicate addresses (all are set to 1 by factory default).

3) Baud rate, verification method, data bits, stop bit errors.

4) The polling interval and waiting time of the host are too short, and both need to be set at 200ms or more.

5) The 485 bus is disconnected or the A and B lines are reversed.

6) If there are too many devices or the wiring is too long, power should be supplied nearby, a 485 amplifier should be added, and a 120 Ω terminal resistor should be added.

7) The USB to 485 driver is not installed or damaged.

8) Equipment damage.