ZyAura ZGw19 User manual

﹡ RJ 45 Socket including the RS232 and analog output,
Power Inlet is used for factory testing only, and
when using 6 DC, the LCO and L O will not work.
Wall Mount CO2 Monitor Operating Instructions
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
relative humidity and temperature. The CO2 monitor can be widely used in the office building, green house,
school, exhibition, shopping mall.
The CO2 monitor is easy to use and has many features:
NDIR Non-Dispersive-Infrared) technology used to measure CO2 concentration.
Three different LED display show the current Indoor Air Quality situation.
Linear analog output 0~10V Voltage, 4~20mA Current) and Relay output based on CO2 Level.
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 view Back view
Side view
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
Safety Instruction
Warning: Your safety is very important to us .To ensure you use your product correctly and safety,
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.
1. Please take the devices lightly, do not subject the product to impact or shock.
2. Do not immerse the product in water.
3. Please pay attention to the terminal block connection instruction, the wrong mode of operation or
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.
Installation Step
Step 1: Release the screw from the device, take the front cover off.
Step 2: Release the four screws from the backcover, take the CO2 board from the backcover.
Step 3: Using the screw to fix the backcover to the current outlet, let the wires come out of the hole.
Please pay attention to the terminal block connection data information.
Step 4: Re-assembling the CO2 board by screw to the back cover.
Step 5: After finishing the terminal block wire connection. Press the front cover to the LCD display.
Step1 Step2
Step3
Step4 Step5
RJ45 Interface & Wiring Connection
Caution: The RJ45 socket is only for factory calibration use, not for LAN, it was covered by plastic
cover, the incorrect RJ 45 connection will have the risk of circuit damage or irreparable damage to
devices.
COMMON (
( (
( L O-/LCO-/RS232 DGND )
))
) , Typical Wiring Diagrams
.
Fig1 ： RJ45 Interface Side view)
A. Main LCD Display H. Up Button
B. Power Switch I. Mode Button
C. Green LED Display
J. Power Inlet
D. Yellow LED Display
K. Gas Entry Hole
E. Red LED Display
L. RJ 45 Socket
(For factory use
only)
F. Enter Button M. Screw Position
G. Down Button
Symbol Meaning
Description
CO2 Concentration PPM
Parts Per Million
The current CO2 concentration in household,
greenhouse, school, hospital, exhibition,
shopping mall and other office or commercial
buildings.
Alarm The Alarm Setting Icon, the factory setting with
alarm is buzzer off
Calibration To calibrate the CO2 sensor when the accuracy
deviates from the actual CO2 concentration
Alarm Level 1
Under HVAC mode, Relay status will invert, the
Buzzer and Yellow LED will work;
Under Greenhouse mode, Yellow LED will work.
Alarm Level 2
Under Greenhouse mode, Relay status will
invert, the Buzzer and Green LED will work.
Under HVAC mode, Red LED will work.
Recover Factory Setting To Recover Factory Setting to cancel the
customized setting
Lock Icon “ON” means No key response
BLANK To disable some part content of display on the
LCD.
87654321
NO
COM
18~26 VAC RMS
18~36 VDC
2
4
V
A
C
+
/
2
4
V
D
C
+
2
4
V
A
C
-
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Not Used R
e
l
a
y
C
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m
R
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N
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Not Used
V
A
500Ω
V
J K L
B
Off
Off Off
Off Auto
Auto Auto
Auto On
OnOn
On
A
I H G F
C
D
E
M

Customized Settings
When the power has been connected, The CO2 monitor will begin to work. In order to meet you
personal requirement, it is advisable to set up the customizing parameter. Warm Up: It lasts
approximately 1min before WARM UP disappears; all MODE functions will not response during
warm up.
Mute Mode ：
：：
：
1. Press the MODE, the speaker icon flashes simultaneously.
2. Press ENTER, use up/down to select the on/off.
3. Press ENTER again to save the setting.
Setting the ALARM 1 level:
1. Press MODE, until the ALARM 1 icon flashes.
2. Press ENTER. Using the Up/Down to set the parameter. The default alarm 1 is 800 ppm
HVAC), 1000ppm GreenHouse).
3. Press ENTER again to save the data.
Setting the ALARM 2 level:
1. Press MODE, until the ALARM 2 icon flashes.
2. Press ENTER. Using the Up/Down to set the parameter. The default alarm 2 is 1200ppm
HVAC), 600ppm GreenHouse).
3. Press ENTER again to save the data.
Note: The factory setting with alarm is buzzer off; user can set the alarm on/off according to alarm
function instruction.
Setting the Calibration mode:
1. Press the MODE. Until the CALI icon flashes.
2. Press the ENTER, CALI show on the display.
3. Adjust the display to the required CO2 value user can pump the CO2 gas or use outside natural
gas while calibrating) by up/down button.
4. Press the MODE morn than 10 sec, CALI flashes. Calibration will be done automatically after 10
minutes and LCD will display “Pass” or “Fail”. If it shows “fails”, please try again.
Setting the AltiMode ：
：：
：
1. Press MODE, until the ALTI icon flashes.
2. Press ENTER, ALTI show on the display meter.
3. Adjust altitude by up/down button to the actual location level.
4. Press ENTER again to save the data.
Using Blank Mode:
1. Press MODE, until the Blank icon flashes.
2. Press ENTER, Blank show on the display of blank mode.
3. Adjust blank mode by up/down button. There are 3 kinds of mode to change.
4. Press ENTER again to save the blank statues.
Using the RcFS Mode:
1. Press MODE, until the RcFS flashes simultaneously.
2. Press ENTER, Using the Up/Down to select the No/Yes
3. After the slecting, Press the ENTER to save the changes.
Remark: If the user setting the data or calibrate the sensor wrongly. You can use the RcFS
Recover the factory Setting) to come back the factory setting data.
Advanced Mode
Press the Enter and Up together for about 10 seconds to enter Adv Mode, there will be “lock” and “mode”
on the LCD. Remind these setting will change the features of LED /Relay and Analogue output.
Using Lock Icon:
1. Press the Enter and Up together for about 10 seconds to enter Adv Mode, there will be “Lock” on
the LCD. Press Up or Down, the LCD will show “on” or “off”.
2. If select “off” and press the Enter button, these 4 keys are enable.
3. If select “on” and press the Enter button, these 4 keys are disable will not response to the user’s
action).
H AC / Green House （
（（
（ GH ）
））
） Mode:
1. Press the Enter and Up together for about 10 seconds to enter Adv Mode, Press Up or Down until
appear the “mode”, then press the Enter button, the LCD will show “HVAC” or “gh”.
2. If select “HVAC” and press the Enter button, AL1 will always be less than AL2.
3. If select “gh” and press the Enter button, AL2 will always be less than AL1.
The CO2 concentration and voltage diagram: Th e line ① represents CO2 concentration, the line
② represents voltage/ current)
１． When select “HVAC”, AL1 <AL2 HVAC), if CO2 concentration is rising, the voltage/current will
increase ；
PRESS
MODE
PRESS
ENTER
PRESS
MODE
PRESS
ENTER
PRESS
UP/DOWN
PRESS
ENTER
PRESS
MODE
PRESS
ENTER
PRESS
UP/DOWN
PRESS
ENTER
PRESS
UP/DOWN
PRESS
ENTER
PRESS
MODE
PRESS
ENTER
PRESS
UP/DOWN
MODE 10s
PRESS
MODE 10s
After 10 min
PRESS
ENTER
PRESS
MODE
PRESS
ENTER
PRESS
UP/DOWN
PRESS
ENTER
PRESS
MODE
PRESS
ENTER
PRESS
UP/DOWN
UP/DOWN
PRESS
UP/DOWN ENTER
PRESS
PRESS
MODE
PRESS
ENTER
UP/DOWN
PRESS
UP/DOWN
PRESS
ENTER
PRESS
UP/DOWN
PRESS
ENTER
PRESS
UP/DOWN
PRESS
ENTER
PRESS
ENTER
+UP 10s
PRESS
ENTER
PRESS
ENTER
+UP 10s
PRESS
UP/DOWN
PRESS
ENTER

Refine
.
：
0
8
201
2
２． When select “gh”, AL1 ＞ AL2 gh), if CO2 concentration is rising, the voltage/current will decrease.
Remark:
Under Green House Mode, the AL1 must >AL2.
For example: AL1= 900ppm, AL1= 800ppm now, user decrease AL1= 700ppm, AL2 will become 700-Step,
AL2= 600ppm, if step=100ppm; AL1= 680ppm, if step= 20ppm).
Specification
Method - NDIR
Sample Method -Diffusion or flow through 50 ~200 ml/min)
■
■■
■ CO 2 Specifications:
Measurement Range 0-3,000 ppm display
Display Resolution 1ppm at 0~1,000ppm; 10ppm at 1,001~3,000ppm
Accuracy ±75ppm or ±5% of reading whichever is greater
Repeatability ±20 ppm @400ppm
Temperature Dependence Typ. ±0.2% of reading per °C or ±2 ppm per °C,
whichever is greater, referenced to 25°C
Pressure Dependence 0.13% of reading per mm Hg
Response Time About 2min for 90% of step change
Warm-Up Time About 60 seconds at 22°C
Sound Alarm About 65db@10cm
Zone LED Display
Green:<800ppm Yellow:800~1200ppm Red: >=1200ppm
HVAC mode)
Green:>1000ppm Yellow:600~1000ppm Red: <=600ppm
GreenHouse mode)
Power Supply 18~26VAC RMS 50/60Hz or 18~36VDC half-wave
rectified, polarity protected)
Linear oltage Output 0~10VDC 100 Ohms output impedance)
Linear Current Output 4~20mA Max Load is 500 Ohm)
Max Load is 400 Ohm while power supply ＜ 20 VDC )
Relay Output 30VDC or 250VAC, max 2A ., SPST .Normally Open
Operating Temperature 0°C ~50°C 32°F~122°F)
Operating Humidity Range 0 ~ 95% RH non-condensing
Storage Temperature -20°C to +60°C -4°F to 140°F)
■
■■
■ Temperature specification:
Temperature Range Display 0°C to 50°C
Display Resolution 0.1°C
Display Options °C
Accuracy
Relay no action and be under
the alarm level)
±1°C when the fan blows to the device directly, the accuracy
of temperature is +/- 1.5 °C
Accuracy
Relay action and exceeds the
alarm level)
±2.5°C when the fan blows to the device directly, the accuracy
of temperature is +/- 1.5 °C
Response Time 20-30 minutes case must equalize with environment)
■
■■
■ RH Specification:
Measurement Range 20%-90% RH
Display Resolution 1%RH
Accuracy ±5%RH@23°C
Response Time About 5 min for 63% of step change
■
■■
■ Operating Conditions:
Operating Temperature 0°C to 50°C
Humidity Range 0 ~ 95% RH non-condensing
Dimension
Calibration
Notice: Before calibrating, you need standard gas or semi-standard gas; there are 3 methods to get
standard gas.
■
■■
■ Method A: use CO2 in office/building
-Use two Meters One is the device for calibration. The other one is a calibrated new) one.
-Use ambient room gas for calibration in office, waiting at least 10min, until the CO2 reading
doesn’t change
Notice: user must not breathe toward the CO2 monitor, CO2 from the user will affect the reading
of CO2 monitor)
-Use the reading of the new device as the standard
-Calibrate the device by the Cali Mode instruction.
■
■■
■ Method B: use CO2 outsides
-Use ambient room gas for calibration outsides, waiting at least 10min, until the CO2 reading
doesn’t change
Notice: user must not breathe toward the CO2 monitor; CO2 from the user will affect the reading
of ZGw19)
-Use 380~420ppm as the standard reading.
-Calibrate the device by the Cali Mode instruction.
■
■■
■ Method C: use standard CO2 in the bottle
-Pump the standard CO2 gas 0~1000ppm, flux = 0.1~0.2 liter/min) into the CO2 monitor from
the Gas Entry Hole waiting about 2~3min.
- Calibrate the device by the Cali Mode instruction.
Radiant Innovation Inc. Http://www.ZyAura.com
1F, No.3, Industrial East 9th Road, Science-Based Industrial
Park, HsinChu, Taiwan 300.
mm
[inches]