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ZyAura ZG09 User Manual

Co2 module
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ZG09 CO
Module
2
ZG09 CO
Module
2
User Manual
http://www.ZyAura.com
REV. 082018

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Summary of Contents for ZyAura ZG09

  • Page 1 ZG09 CO Module ZG09 CO Module User Manual http://www.ZyAura.com REV. 082018...

  • Page 2: Table Of Contents

    ZG09 CO Module Contents 1 GENERAL DESCRIPTION ..................................3 2 FEATURES OF DESIGN ..................................3 3 SPECIFICATION....................................... 3 4 UART ........................................5 5 RS485 COMMUNICATION ..................................7 6 I2C COMMUNICATION .................................... 7 7 PWM OUTPUT ......................................7 8 DAV OUTPUT ......................................8 9 RELIABILITY ......................................

  • Page 3: General Description

    This is a preliminary specification, any update might without notification. Copyright: All rights reserved. Reproduction in any manner, in whole or in part is straightly prohibited without written permission of ZyAura.com. This information contained in this document is subject to change without notice.
  • Page 4 ZG09 CO Module Pin assignment of ZG09 Figure 1. Module External Drawing Note: The dimensions in this drawing are for reference only. Pin Configuration: Function ppm PWM output DAC output Ground Power input +5V I2C Data pin I2C Clock pin (default) or RS485 R/T control pin...

  • Page 5: Uart

    4. UART UART default: BPS: 19200 Data Bit: 8 Parity bit: None Stop bit: 1 Protocol: The protocol for ZG09 UART is Modbus RTU, commends are for sending and receiving: Send Function Code Start Length (1 Byte) (1 Byte) (2 Bytes)

  • Page 6: Unsigned Char Uccrchigh

    ZG09 CO Module Commend for data returning 0103 0201 F8B8 56 Function Code Length data Note (1 Byte) (1 Byte) (1 Byte) (N Bytes) (2 Bytes) (1) FAH 01ACH 5C7DH 428ppm (2) FEH 0197H ED1AH 407ppm Data length for Receiving =Length for Sending x 2...

  • Page 7: Rs485 Communication

    Connect with the Chip SP3072 for RS-485/RS422 for long distance monitoring. Shield wire is required for long distance. The chip SP3072 can be powered by 3V power from ZG09 as Figure 2. Keep the lead as short as possible. Please refer Item 4. UART for Modbus Protocol.

  • Page 8: Pwm Output

    ZG09 CO Module 7. PWM Output Adjustable CO measurement range PWM VCC (3.0~3.3V) level at 1 kHz output 0~10,000ppm. Schematic is as Figure 3. AL1=0~10,000ppm, AL2=0~10,000ppm. The AL1<AL2 setting is for HVAC. AL1>AL2 setting is for agriculture, If the gas concentration for agriculture is 0-10,000ppm, then the AL1=0ppm, AL2=10,000ppm.

  • Page 9: 10 Response Time

    ZG09 CO Module 9.2 Temperature cycle test 16 samples were on long-term test (-20°C, +65, +60°C, 85% RH, 400 hours) and the average results are shown in Figure 5. The Y axis is the CO concentration and the X axis is the time.

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