ZyAura ZGw19C Operating Instructions

Wall Mount CO2Monitor Operating Instructions
Model: ZGw19C
Product Overview
Thank you for selecting this CO2 wall mount monitor. This product was developed to detect the presence
of CO2 in the ambient air and help people to take care of the IAQ (Indoor Air Quality). The compact device
is designed for use in HAVC in the building, also the greenhouse with the CO2 concentration control.
By using the CO2 monitor as the indicator, it can easily get the current CO2 concentration together with the
relativehumidity and temperature. The CO2 monitor can be widely used in the office building, green house,
school, exhibition, shopping mall.
The CO2 monitoris easy to use and has many features:
Dual Beam NDIR (Non-Dispersive-Infrared) technology used to measure CO2 concentration.

 Three different LED display show the current Indoor Air Quality situation.
 Optional analogue and digital output : linear analog output(0~10V Voltage, 4~20mA Current) and
RS232
Reliable Sensor provides long-term calibration stability.

The visual and audible alarm function can be adjustable by user.

 Mounting bracket with terminal block provides quick easy installation.
Operation Instruction
Front
Side
A. Power Switch
B. Main LCD Display
C. Green LED Display
D. Red LED Display
E. Yellow LED Display
F. Mode Button
G. Up Button
Power Switch Function:
When switch is "ON", relay output is always closed; when switch is "AUTO", relay output is
controlled by user; when switch is "OFF", it means the device is power off.
LCD Display Symbol
Symbol
CO2 Concentration PPM
Parts Per Million
Alarm
Calibration
Alarm Level 1
Alarm Level 2
Back
Recover Factory Setting
Lock Icon
BLANK
Safety Instruction
Warning: Your safety is very important to us .To ensure you use your product correctly and safety,
H. Down Button
we would like to your attention to read those warning and the User Manual before using the product.
These Warning provides important safety information and should be observed at all times.
I. Enter Button
J. Phone Jack 1. Please take the devices lightly, do not subject the product to impact or shock. Otherwise, this
may cause the accuracy drift
K. Gas Entry Hole
2. Do not immerse the product in water.
3. Please pay attention to the terminal block connection instruction, the wrong mode of operation or
L. Screw Position
opposite installation will destroy the circuit of the devices.
4. Do not touch the exposed electronic circuitry of the device under any circumstances. Keep the
circuit is close during installation. As there is the danger of electric shock.
5. Please keep the devices away from children touch to avoid the danger or the accident.
6. Do not keep the product under the hot and moisture environment. Keep the product away form
the heat source or near water.
7. Please ensure the screws are fixed on the wall tightly. Do not let the screws approach or close to
the surface of PCB board during installation. It has the risk of circuit damage or irreparable
damage to devices.
Caring for product
To make sure you receive the maximum benefit from using this product, please observe the follow
guideline.
1. Cleaning—disconnect the power before clean. Use a damp cloth; do not use the liquid cleaning
agent, such as benzene, thinner or aerosols.
2. Repair----Do not attempt to repair the product or modify the circuitry by yourself. Please contact
with our local dealer time or a qualified repairman if the product needs servicing.
3. Calibration--- Please observe the calibration operation to make sure the accuracy for the devices
when it's necessary.
4. Air diffusion—The ventilation slots on the housing are designed for CO2 diffusion, so these
ventilation slots should not be blocked.
Meaning Description
The current CO2 concentration in household,
greenhouse, school, hospital, exhibition,
shopping mall and other office or commercial
buildings.
The Alarm Setting Icon, the factory setting with
alarm is buzzer off
To calibrate the CO2 sensor when the accuracy
deviates from the actual CO2 concentration
Under HVAC mode, Relay status will invert, the
Buzzer and Yellow LED will work;
Under Greenhouse mode, Yellow LED will work.
Under Greenhouse mode, Relay status will
invert, the Buzzer and Green LED will work.
Under HVAC mode, Red LED will work.
To Recover Factory Setting to cancel the
customized setting
"ON" means No key response
To disable some part content of display on the
LCD.
Installation Step
Step 1-3:Remove the back cover by releasing the top screw.
Step4: Secure the back cover(mounting plate) to the junction box on the wall. And make sure the
wire connections.
Step 5: Finish the installation by mounting the controller on the back cover.
Step 1 Step 2
Step 4
Wiring Connection
. Typical Wiring Diagrams
EarPhone pin define:
ZGw19 C provide earphone jack with RS232 function, How to connect please reference below
picture.
Step 3
Step 5