Winsen ZRT510 Refrigerant Sensor Module User Manual

 Zhengzhou Winsen Electronics Technology Co., Ltd

www.winsen-sensor.com

Infrared Refrigerant Sensor Module

(Model: ZRT510)

User’s Manual Version 1.2

Issue Date. 2023.06.21

Zhengzhou Winsen Electronics Technology Co., Ltd
ISO9001 Certificated Company

Statement

This manual’s copyright belongs to Zhengzhou Winsen Electronics Technology Co., LTD. Without the written permission, any part of this manual shall not be copied, translated, stored in database or retrieval system, also can’t spread through electronic, copying, record ways.

Thanks for purchasing our product. In order to let customers use it better and reduce the faults caused by misuse, please read the manual carefully and operate it correctly in accordance with the instructions. If users disobey the terms or remove, disassemble, change the components inside of the sensor, we shall not be responsible for the loss.

The specific such as color, appearance, sizes &etc., please in kind prevail.

We are devoting ourselves to products development and technical innovation, so we reserve the right to improve the products without notice. Please confirm it is the valid version before using this manual. At the same time, users’ comments on optimized using way are welcome.

Please keep the manual properly, in order to get help if you have questions during the usage in the future.

Zhengzhou Winsen Electronics Technology CO., LTD.

ZRT510 Refrigerant Sensor Module

Profile

ZRT510 refrigerant sensor module is a smart infrared type sensor module, using non-dispersive infrared (NDIR) principle to detect the existence of refrigerant, with good selectivity and non-oxygen dependent. It is a compact high performance sensor module made by combining mature infrared gas detection technology with micro machining and sophisticated circuit design. It is easy to use with excellent performance.

Main Features

High sensitivity, high resolution, fast response
RS485 communication
Temperate compensation, excellent linear output, good stability, long lifespan
Self-heating function, anti-water vapor interference, anti-poisoning, direct replacement for catalytic sensors

Main applications

HVAC
Industrial process and safety monitoring

Main parameters

Table1.

Model No.

| ZRT510
---|---
Detection Gas|

R454B(R32 or R290 can be customized)

Working voltage

| 5±0. 1 V DC, ripple<50mV
Average current|

< 60mA (without opening the heating function)

Peak current

| < 300mA
Interface mode|

XHQ-4

Communication mode

| RS485(UART or PWM can be customized)
Data update|

1s

Preheat time

| < 30s
Response Time|

Under 25% LFL environment, the time reaching alarm point (7% LFL) is less than 10 seconds

Working T&H

| -40~80 ℃, 0~100% RH
Storage T&H|

-40~60 ℃, 0~100% RH

Sizes

| 75.45721.5 mm (without connecting cable)
Weight|

32.5g (without connecting cable)

Lifespan

| > 15 years
Certification|

UL 60335-2-40 : 2022 & IEC 60335-2-40 : 2022

Resolution

Table2.

Detection Gas

| Detection Range| Resolution| Accuracy
---|---|---|---
R32| 0~50% LFL|

1% LFL

| 1.±2.5%LFL (-20-60℃, 0-95%RH)
2.±5.0%LFL (Others)

Dimensions

1. 1 5V
2. 2 GND
3. 3 485B
4. 4 485A
5. 5 Reserved
6. Interposing terminal: SUMITOMO6189-10 46

Fig1.sensor module size

Pin Definition:

Table3.

Pin

| Pin Definition|

Fig2. Sensor Module Pins

---|---|---
Pin 1|

VCC

Pin 2

| GND
Pin 3|

RS485-B

Pin 4

| RS485-A
Pin 5|

Reserved

Communication protocol:

ZRT510 module is RS485 communication, communication protocol and data format are as follows:

1. Communication settings:

Table4. Communication settings

Data bit: 8 bits
Stop bit: 2 bits
No parity
Baud rate| 2400bps
Modbus address| 0x01 (default)
Supported Function Codes| 0x03 (Read multiple holding registers)
0x06 (write single register)
Supported Exception Codes| 0x01 (Illegal function)
0x02 (illegal address)
0x03 (Illegal data value)
0x04 (server-side device fault)

2. Register definition:

Table5. Register Definition Table

Access Type

| Name| Register Address| No. of Registers| Data Type| Description
---|---|---|---|---|---
Read| Register Specification Version| 0x0100| 1|

[uint8, uint8]

| Protocol specification version, the high byte is the major version number and the low byte is the minor version number.

Write

| Device Reset| 0x0101| 1|

bool

| The sensor will be reset by writing 1 to the register.

Data Search

Read| Operation mode| 0x0110| 1|

enum

| Operation mode of the device, no measurement values are available during startup.
0: start-up; 1: measurement in progress.

Read

| Leak signal| 0x0111| 1|

bool

| Flag that turns on when the concentration exceeds the alarm threshold. By default, the leak signal remains on for 5 minutes after the concentration falls below the leak signal threshold again.
0: No leak detected;
1: Leak is actively detected or for the duration after the leak detection.

Read

| Error Code| 0x0112| 1|

uint16

| Refer to <6> Fault Definition Table

Read

| Gas concentration LFL| 0x0113| 1|

int16

| The last measured gas concentration in %LFL multiplied by 10 (e.g. 250 means 25%LFL).
Resolution: 1% LFL;
Range: 0-100% LFL.

Read

| Sensor Module Temperature| 0x0114| 1|

int16

| Last measured temperature in °C multiplied by 10 (e.g. 210 means 21.0 °C).
Resolution: 0.1 °C;
Range: -40 to 85°C.

Read

| Sensor Module Humidity| 0x0115| 1|

int16

| Last measured humidity in %RH multiplied by 10 (e.g. 305 means 30.5%RH).
Resolution: 0.1%RH;
Range: 0-100%RH.

Setting

Read / Write| Device Address| 0x0120| 1|

uint8

| Slave address of the Modbus interface Range: 1 – 247;
Default value: 1
A soft reset or power reapplication is required to apply a change to this value.

Read

| Leak signal trigger threshold| 0x0124| 1|

uint16

| The gas concentration level that triggers the leak signal.
Resolution: 0.1% LFL (e.g. 251 means 25.1% LFL)

Read

| Lifetime warning signal trigger threshold| 0x0126| 1|

uint16

| The life count value of the trigger life warning signal in days.
Resolution: 1 day;
Range: 0-65535 days.

Read

| Life Alarm Signal Trigger Threshold| 0x0127| 1|

uint16

| The life count value of the trigger life alarm signal in days.
Resolution: 1 day;
Range: 0-65535 days.

Device Information

Read| Device Marking| 0x0140| 1|

string[20]

| Reads the device tag. To be set, no default value. Indicates that the string is filled with 0 and terminated without 0.

Read

| Firmware Version| 0x014A| 1|

uint8[2]

| Firmware version.
Format:
High byte: major version;
Low byte: minor version.

Read

| Gas Type| 0x014C| 1|

enum

| The type of gas for which the sensor module is configured.

Read

| Life counter (days)| 0x014E| 1|

uint16

| The service life of the device in days.
Resolution: 1 day;
Range: 0-65535 days.
Device stores timing values every 12 hours.

Read

| Life counter (hours)| 0x014F| 1|

uint16

| The value of the service life of the device is supplemented by the number of hours, which together with the integer digits form the life value. The unit is hours.
Resolution: 1 hour (for example: 12 means 12 hours, if the number of life days is 100, the total life is: 100 days and 12 hours);
Range: 0-23 hours.
This value is updated every 1 hour.

3. Fault definition

Table6. Fault Definition Table

Bit(0-15 from right to left)

| Fault| Description
---|---|---
0|

Internal errors

| Errors that cause measurement data to be unavailable, such as internal communication errors.

1

|

Value exceeds limit

| The sensor detects a temperature, relative humidity or gas concentration that exceeds the specified limits.

2

| –| –
3|

Self-test failed

| Internal check for errors caused by incorrect operation, invalid settings, etc.

4

|

Sensor module failure

| Unable to recover from an error that requires replacement of the sensor module.

5

|

Exceed life limit alarm

| The service life limit has been reached.

6

|

Approaching life limit warning

| The lifetime warning threshold has been reached.

4. Data sending and receiving format:

Table7. Basic Format

Device Address

| Function Code| Data| CRC Checksum
---|---|---|---
1 byte| 1 byte| N byte|

2 byte

Table8. Function Code 03 – Read Holding Register Request Format

Device Address

| Function Code| Start register address high byte| Start register address low byte| Read the high byte of the number of registers| Read the low byte of the number of registers| CRC Checksum
---|---|---|---|---|---|---
1 byte| 03| 1 byte| 1 byte| 1 byte| 1 byte|

2 byte

Table9. Function Code 03 – Read Holding Register Correct Answer Format

Device Address

| Function Code| Return the number of data bytes| Register 1 data high byte| Register 1 data low byte| ……| CRC Checksum
---|---|---|---|---|---|---
1 byte| 03| 1 byte| 1 byte| 1 byte| ……|

2 byte

Table10. Function Code 06 – Write Single Holding Register Request Format

Device Address

| Function Code| Register address high byte| Register address low byte| Write value high byte| Write value low byte| CRC Checksum
---|---|---|---|---|---|---
1 byte| 06| 1 byte| 1 byte| 1 byte| 1 byte|

2 byte

Table11. Request frame error response format

Device Address

| Function Code| Exception code values| CRC Checksum
---|---|---|---
1 byte| Request frame function code +0x80| 1 byte|

2 byte

• Note: CRC checksum calculation: CRC-16/MODBUS x16+x15+x2+x1

Notes:

• Please use the sensor module within requested and stable voltage. It may be damaged if the voltage is too high or not work properly if the voltage is too low.
• Please do not use the product in high T&H, strong electromagnetic or dusty environment for long time.
• Please do not impact or vibrate the module seriously.
• Please do not install the module in the severe convection environment.

Zhengzhou Winsen Electronics Technology Co., Ltd
Add: No.299, Jinsuo Road, National Hi-Tech Zone, Zhengzhou 450001 China
Tel: +86-371-67169097/67169670
Fax: +86-371-60932988
E-mail: sales@winsensor.com
Website: www.winsen-sensor.com

Tel: 86-371-67169097/67169670      Fax: 86-371-60932988    Email: sales@winsensor.com

References

• Winsen Gas Sensor_CO2 Sensor_Air Quality Sensor_Dust Sensor_CO Sensor-Winsen Electronics
• Winsen Gas Sensor_CO2 Sensor_Air Quality Sensor_Dust Sensor_CO Sensor-Winsen Electronics

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