ZG09 CO
2
Module
http://www.ZyAura.com
REV. 082018
1. General Description
This document describes the user guide of ZG09.
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.
Limited Warranty:
This data sheet contains information specific to products manufactured at the time of its publication
.
Contents herein do not
constitute a warranty.
Trademark Acknowledgements:
All trademarks are the property of their respective owners.
2. Features of Design
NDIR (non-dispersive infrared) sensor
The diffusion and sampling method are both available.
Measurement range: 0~10,000ppm
Output interface: UART, RS485, I2C, PWM, DAC
3. Specification
Communication:
UART
3.3V level
Modbus RTU protocol
RS485
SCL pin for RS485 R/T control pin shared
I2C
Max. clock 400kHz
PWM
3.3V level at 1kHz
DAC Output
0~1V = 800~1,200ppm
CO
2
Measurement range
0~10,000ppm
Measurement Interval
2 sec
CO
2
Accuracy
±50ppm±3% of reading
CO
2
RMS Noise
<10ppm @ 400ppm, <20ppm @ 1000ppm
CO
2
Repeatability
±20ppm
Resolution
1ppm
Response Time
about 1min for diffusion (90% Rise Time)
Pressure Dependence
0.13% of reading per mm Hg
Warm-Up Time (Cold Start)
30 sec @ 25°C
Power Supply
5.0VDC±0.5 supply
Power Consumption
Max. (0.8 ms shot capture) <190mA, avg. <34mA
IR OFF Avg. Current (mA)
<10mA
Operating Temperature
0~50°C
Storage Temperature
-20~60°C
Operating Humidity
0-95% RH
Storage Humidity
0-95% RH
Dimensions
32.2mm x 20.2mm x 13.7mm