CO2 Monitor Operating Instructions
Model: ZG10U
Table of Contents
1 .Product Instruction
2. Package Content Check & Main Unit View
3. LCD Display Symbol
4. SEU (Sensor Unit) Function Instruction
5. RDU (Remote Display Unit) Function Instruction
6. Safety Notes
7. Caring For Product
8. Installation Instruction
9. Customizing Settings
10. CO2 & Temperature Specification
11. Weight & Dimension
12. Fault Codes & Troubleshooting Guide
1. Product Instruction
Thank you for selecting the ZG10U CO2 Monitor. It is designed to detect the
presence of Carbon Dioxide in the ambient air to protect people in confined spaces.
High concentrations of CO2 in confined spaces are dangerous, and may lead to
health problems ranging from headaches and fatigue to asphyxiation and death.
The ZG10U CO2 Monitor is with the audible alarm and visual indication which will
activate when CO2 concentration reaches a pre-set level. Detection of high levels
of CO2 will also activate a relay that could be used for a fan to ventilate the
confined space and reduce CO2 concentration in the area. The ZG10U CO2
Monitor can be widely used in CO2 storage areas, breweries, wineries, cellars,
beverage dispensing areas, and fast food outlets.
ZG10U CO2 Monitor is cost-effective and has many features:
1.NDIR (Non-Dispersive Infrared) technology is used to measure CO2
concentration up to 50,000 ppm (parts per million).
2.With the SEU (Sensor Unit) and RDU (Remote Display Unit), it can connect
up to 3 RDU for safety notices.
3.Large digital LCD display clearly indicates the ambient CO2 concentration and
temperature.
4.Relay output can automatically control a fan to ventilate confined spaces.
5.Audible and visual alarm indications.
6.IP54 Water Proof Protection of SEU( Sensor Unit) except backside when
installed on the wall
2. Package Content Check & Main Unit View
The ZG10U package comprises the following parts:
Main Unit:
Accessories:
Plug lock 1 pc Screw 10pcs Expansion
plug 10 pcs
Nail cable clip 10 pcs Warning paper 1 pc
Caution: please take off the rubber cap and put it to the position L when
ZG10U is taken from the package, the vents is not blocked while ZG10U is
working.
SEU (Sensor Unit)
RDU (Remote Display Unit)
3. LCD Display Symbol
Second Alarm level
Safety Notice “ESC”
displays on LCD when CO2
concentration exceeds the
second alarm level. The
Red 1& Red 2 LEDs will
flash, and buzzer will sound
Calibration
To calibrate the CO2 sensor
when the accuracy deviates
from the actual CO2
concentration.
Recover Factory Setting To recover factory default
settings and cancel any
customized settings
ESC
To indicate the CO2
leakage once the CO2 level
is above the second alarm
level
Hi The CO2 concentration is
above 5%.
4. SEU (Sensor Unit) Function Instruction
The SEU (Sensor Unit) should be placed in a room where the CO2 is likely to
accumulate, such as a room where CO2 is stored, like an area with CO2
beverages. The large LCD displays the ambient CO2 concentration and the
temperature.
The SEU has the “DIAG”,”AL1”,’AL2”‘CALI”, “ReFactSet” function. The “DIAG”
function executes communication tests between the SEU and RDU. The user can
do the calibration under the “CALI” mode when necessary. If data-setting is done
incorrectly, the user can use the “ReFactSet” back to the original factory setting.
There have “AL1” ‘AL2” two alarm levels, the alarm level is adjustable, the first
alarm level is with parameter 0.5%, 1%, 1.5%, 2%, the default first alarm level is
1.5% . The second alarm level is with parameter 1.5%, 2%, 2.5%, 3%, 3.5%, 4%,
the default second alarm level is 3%.
When the ZG10U CO2 Monitor detects CO2 concentration that exceeds the first
alarm level, the red 1 LED will blink and the buzzer will sound intermittently, the
relay will be triggered. When CO2 concentration drops the first alarm level, the red
1 LED will stop blinking and buzzer will stop beeping.
If the concentration of CO2 continues to rise above the second alarm level, the red
1 and red 2 LED’s will flash together and the tempo of the buzzer will increase.
When CO2 concentration drops below the second alarm level, even to the first
alarm level, the red 1 and red 2 LED’s will remain blinking, and the buzzer will
remain beeping. Unless the ZG10U is restarted, by means of reset button of
ZG10U or unplug the AC adapter and reconnected it.
The green LED will light continuously when the power is normally supplied.
Warning: If the ambient CO2 concentration reaches the second alarm level, on
SEU & RDU, there will be a safety notice “ESC” displays on the LCD, Careful
action, such as ventilating the space, must be taken before entering the room
where the SEU is placed.
To clear the flashing “ESC” from the LCD, use the “ReFactSet” to restore the unit
to the original factory settings, or unplug the AC adapter and reconnect it to the
power.
If the communication cable between the SEU & RDU doesn’t connect well, like the
communication cable looses in the Input port, the fault LED of SEU will blink,
reconnect the cable, if the cable is inserted into the output port, on RDU, after ºC/
ºF flashing one minute, the “Er7” will flash on LCD. Unplug the cable and plug it
into the Input port. The unit will work normally after corrective action.
If cleaning places where the SEU is installed, first take off rubber cap off and
putting it on the position of gas entry. Water will not enter into the SEU during
cleaning. The following picture shows the position changes of the rubber cap.
5. RDU (Remote Display Unit) Function Instruction
The RDU (Remote Display Unit) should be placed outside the room when in use.
The RDU is connected to the SEU with a wire that has a maximum length of 25
feet. The RDU should be placed where it can be conveniently observed before
entering the room where the SEU is located. The RDU is a repeater, and displays
the measurements made by the SEU on an easy-to-read digital LCD along with
important safety information.
The RDU has “DIAG” function. The “DIAG” can test the communication between
the SEU and RDU. Resetting the ZG10U CO2 Monitor is only available from SEU.
6. Safety Notes
Warning: Your safety is very important to us. To ensure to use the product correctly
and safety, please read these warnings and the entire User Manual before using
the product. Otherwise, the protection provided by the equipment may be impaired.
These warnings provide important safety information and should be observed at all
times.
1. Please handle the device carefully; do not subject the product to impact or
shock.
2. Do not place the unit, or the adaptor near a heat source. Heat can cause
distortion of the unit, which may result in an explosion or fire.
3. Do not touch the exposed electronic circuitry of the device under any
circumstances, as there is the dangerous of electric shocks.
4. Please use only the included power adaptor. Improper power adaptor or power
sources can cause serious damage to the product, or result in injury or death to
the user.
5. Please use the “DIAG” function to verify the communication between SEU and
RDU, to make sure the communication between SEU and RDU works normally.
6. Please make sure that the power adaptor is mounted by plug lock tightly, so the
power adapter can not be disconnected without using of mechanical tools.
7. Do not enter into the room directly if there has safety notice “ESC” displays on
the LCD of SEU & RDU. Some careful and protective action must be taken
before entering the room where the SEU is installed.
8. Please take care of cable connection between SEU and RDU. Make sure the
cable from SEU is connected into the INPUT port of RDU.
9. Please ensure the external power supply is normally supplied to ventilation fan
while the relay is working. If there has no normally power supply to the fan, the
relay will not work, which may result in potential danger with high CO2
concentration in confined space.
7. Caring For Product
To make sure to receive the maximum benefit from using this product, please
observe the follow guidelines.
1. Repair - Do not attempt to repair the product or modify the circuitry by yourself.
Please contact your local dealer or a qualified repairman if the product needs
servicing.
2. Cleaning - Disconnect the power before cleaning. Use a damp cloth. Do not use
liquid cleaning agents such as benzene, thinner or aerosols, as these will
damage the device.
3. Maintenance – We recommend users to test the communication between the
SEU and RDU under ‘DIAG” function to verify the working conditions for the
SEU and RDU. If the four LED’s blink and the buzzer of SEU and RDU sound
simultaneously, it indicates that SEU and RDU work normally. When the LCD
displays a safety icon “ESC”, please take immediate protective action to check if
CO2 leakage has occurred. We suggest users to do the calibration and
thorough function check once within two year to make sure that the ZG10U
CO2 Monitor is working properly.
8. Installation Instructions
Please carefully take out the SEU (Sensor Unit), RDU (Remote Display Unit),
panel holders, network cable connector, 7 meters communication cable, user
manual, plug lock, screws, expansion plugs, nail cable clips, warning paper from
the package.
Step-by-Step Installation:
1. Choose a suitable location to install the SEU. Fix the panel holder on the wall
with the four screws (included); the recommend installation height is about 0.45
meters (1.5 feet) from floor and close to the manifolds and valves as possible.
2. Put the SEU on the panel holder, making sure that they are connected tightly.
3. Fix another panel holder in a suitable location outside the monitored space with
screws (included). Push the RDU onto panel holder, and stick the warning
paper next to RDU.
4. The communication cable is pre-wired to the SEU. Route the cable to the RDU
and fixed the communication cable to the wall by nail cable clips, and then plug
the cable into the input port on the RDU. Communication is now ready between
the SEU and RDU.
5. The ZG10U CO2 Monitor has one relay output. The relay cable is pre-wired to
SEU. The relay can control a fan or blower to ventilate the monitored space
when necessary. The relay will be triggered when the CO2 concentration
exceeds the first alarm level.
6. After finishing the installation, Connected the AC power adapter into the
electrical supply outlet.
Mount the Plug lock by expansion plugs so that the power adapter cannot be
disconnected without use of mechanical tools.
7. When the power has been connected, The SEU and the RDU will begin to work.
Please use the “DIAG“ function to verify the communication between SEU and
SEU( Sensor Unit) RDU (Remote Display Unit) Panel holders
Network cable
connector 7 meters communication cable User manual
A. LCD display H. Enter Button
B. Yellow LED( Fault indication) I. Communication Cable to RDU
C. Red 2 LED( AL2 ) J. Relay output
D.Red 1 LED( AL1 ) K. Power Supply
E. Green LED (Power indication) L. Rubber Cap
F. Reset Button M. Gas entry
G. Mode Button N. Buzzer
O. Green LED(Power indication) T. Enter Button
P. Red 1 LED (AL1 ) U. Mode Button
Q. Red 2 LED ( AL2) V. RJ45 Plug for
next RDU (Output)
R. Yellow LED ( Fault indication) W. RJ45 Plug for SEU( Input)
S. LCD display X. Buzzer
