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Dual-Channel Platinum Thermal Resistance Collector

2 AD acquisition channels, can be connected to PT100 and PT1000 thermal resistance
AD sampling rate is fast, high precision
Compact size, convenient and flexible installation
Use the standard MODBUS protocol output, which is convenient for engineering networking and industrial applications.
Power supply anti-reverse protection design, wiring more assured.
Multiple indicator lights, the running status is clear at a glance.
Using industrial grade chips, the operation is stable and reliable.

产品描述
Product Description
Roduct Parameters
Specifications
Instructions For Use

2 AD acquisition channels, can be connected to PT100 and PT1000 thermal resistance
AD sampling rate is fast, high precision
Compact size, convenient and flexible installation
Use the standard MODBUS protocol output, which is convenient for engineering networking and industrial applications.
Power supply anti-reverse protection design, wiring more assured.
Multiple indicator lights, the running status is clear at a glance.
Using industrial grade chips, the operation is stable and reliable.
HYH1025 is a high-performance, high-sensitivity temperature data acquisition terminal with 2-channel AD acquisition ports, which can be connected to PT100/PT1000 thermal resistance sensor signal input, converted into temperature data and output by standard MODBUS protocol widely used in the industry , which is convenient for engineering networking and industrial applications, and supports secondary development. Support communication with the host computer by RS485 communication, and quickly set up a temperature measurement system.
Product Size Description

Dimensions: mm

Product Interface Description

1、DC12V
- 12V ：Positive power supply.
- GND ：The negative pole of the power supply.
2、RS485
- A+：RS485 positive.
- B- ：RS485 negative.
3、Indicator light
- PWR: Power indicator, always on when power on.
- SYS: Status indicator, flashes when there is 485 communication.
4、CH1
- A ：Connect to a line of different colors of the resistance sensor.
- B ：Connect to one of the two wires of the same color of the resistance sensor.
- C ： Connect to the other of the two wires of the same color of the resistive sensor.
5、PT100/PT1000 Wiring Diagram

Specifications	Parameters
Interface	1 RS485 port, 1 power port, 2 differential ADC input channels
Operating Voltage	DC12V
Working temperature	-10~60℃
Working humidity	<85%RH (no condensation)
Input signal	PT100/PT1000
Accuracy class	0.1% FS (excluding lead error)
Sampling frequency	32HZ
Resolution	0.1℃
Protection level	Power interface polarity protection, RS485/input channel electrostatic protection
RS485	Standard MODBUS protocol, baud rate 9600, 8 data bits, 1 stop bit, no parity
Installation method	Screw mounting

Instructions For Use

1、After the device is installed, it can work normally when powered on

Protocol Description

RS485协议

1、Holding Register Address Definitions

Address	Register information	Operation	Notes
0x1000	MODBUS address	read/write	1~247, default 01, 0 and FF are broadcast addresses
0x0001	CH12 temperature	read only	℃, round to one decimal place
0x0002	CH34 temperature	read only	℃, round to one decimal place

2、Example

Take the temperature value whose device address is 0x01.

Query Frame:

Address code	Function code	Start address	Data length	Check code low digit	Check code high bit
0x01	0x03	0x00 0x01	0x00 0x01	0xD5	0xCA

Reply Frame:

Address code	Function code	returns the number of valid bytes	Temperature	Check code low digit	Check code high bit
0x01	0x03	0x02	0x00 0x12	0xB8	0x09

CH12 temperature: 012CH (hexadecimal)=300=>CH12 temperature=30.0℃

Disclaimer OF Warranties

The company reserves the right to change this specification and update the product. The specification and product may be updated without prior notice without affecting the product quality and user usage. We are not responsible for any direct, indirect, intentional or unintentional damage and hidden dangers caused by improper use and out-of-specification use.

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Dual-Channel Platinum Thermal Resistance Collector

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