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ZGw08 SERIES - ZGw08VRC / ZGw08PR |
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3 LED Display:
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< 800 ppm |
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800~1200 ppm |
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> 1200 ppm |
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ZGw08VRC |
ZGw08PR |
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J. |
Terminal Block (ZGw08VRC) |
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Terminal Block is for Relay out
(ZGw08PR) |
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K. |
RJ45 Socket ,including the RS232. |
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And Analogue output for ZGw08VRC |
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L. |
RJ 45 Socket (For factory use only) |
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NDIR ( Non-Dispersive-Infrared) technology used to measure CO2 concentration. |
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Three different LED display show the current Indoor Air Quality situation. |
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The visual and audible alarm function can be adjustable by user. |
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Voltage(0~10V) ,Current Loop and Relay output. |
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Reliable Sensor provides long-term calibration stability. |
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Meaning |
Description |
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CO2 Concentration PPM
Parts Per Million |
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The current CO2 concentration in your household |
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Ventilation Rate cfm/p
Cubic Feet Minute/Person |
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The Present Cubic Feet/Minute
Ventilation for one person |
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Ventilation Rate L/P/S
Liter/Person/Second |
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The Current Liter/ Second
Ventilation Rate for one person |
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To calibration the CO2 sensor when the accuracy deviates from the actual CO2 concentration |
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The 1st Alarm Level.
Relay status will invert after CO2 level exceeds AL1.
The Buzzer and Yellow LED will work after CO2 level exceeds AL1. |
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To Recover Factory Setting to cancel the customing Setting |
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Warning: Your safety is very important to us .To ensure you use your product correctly and safety, we would |
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like to your attention to read those warning and the User Manual before using the product. These |
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Warning provide 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 submerge the product into water or any liquid. Water may cause electric shock, fire or malfunction |
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which may result in damage. |
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Please pay attention to the terminal block connection instruction, the wrong mode of operation or opposite |
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installation will destroy the circuit of the devices. |
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Do not touch the exposed electronic circuitry of the device under any circumstances. |
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Keep the circuit is close during installation. as there is the danger of electric shock. |
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Please keep the devices away from children touch to avoid the dangerous or the accident. |
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Do not keep the product under the hot and moisture environment. Keep the product away form the heat source |
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or near water. |
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To make sure you receive the maximum benefit from using this product, please observe the follow guideline. |
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Cleaning----Disconnect the power before clean. Use a damp cloth, Do not use the liquid cleaning agent, such |
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as benzene, thinner or aerosols. |
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Repair----Do not attempt to repair the product or modify the circuitry by yourself. Please contact with our local |
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dealer or a qualified repairman if the product needs servicing. |
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Calibration--- Please observe the calibration operation to make sure the accuracy for the devices when it's |
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necessary. |
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Air circulation---The vents allow the air circulation liquid for measurement of the CO2 concentration and the |
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ventilation and should not be blocked. |
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ZGw08VRC Installation Step |
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| Step 1 |
Step 2 |
Step 3 |
Step 4 |
Step 5 |
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ZGw08PR Installation Step |
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| Step 1 |
Step 2 |
Step 3 |
Step 4 |
Step 5 |
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Step 1: Release the screw from the device, take the front cover off.
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Step 2: Release the four screws from the black cover, take the CO2 board from the black cover. |
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Step 3: Using the screw to fix the black cover to the current outlet, let the wires come out of the hole.
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Step 3: Please pay attention to the terminal block connection data information. |
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Step 4: Re-assembling the CO2 board by screw to the black cover. |
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Step 5: After finishing the terminal block wire connection. Press the front cover to the LCD display. |
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ZGw08VRC Typical Wiring Digirams |
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Caution |
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Please use the 18- 26 AWG stranded copper wire only, 2 wires each for power, analog output, relay. |
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The signal ground can’t connect with the power ground. Make sure that the wire of power, analog |
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output, relay are not connected with each other. |
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Please take care of the wiring connection, the incorrect wiring will have the risk of circuit damage or |
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irreparable damage to devices. The recommend power is DC24V, not AC24V. |
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2. |
The 4~20mA output (Max Load is 500 Ohm) can not connect to any power terminal.
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i.e: the current load must be pure resistance, otherwise, the current output will be damaged. |
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3. |
The 0~10VDC load must more than 300 Ohm. |
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| Below is the right application circuit: |
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| Below is the wrong application circuit: |
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Fig 1: Wiring Connection |
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Caution: |
The RJ45 socket is only for factory calibration use, not for LAN, it was covered by plastic cover, the |
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incorrect RJ 45 connection will have the risk of circuit damage or irreparable damage to devices. |
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| Fig2: RJ45 Interface (Side view) |
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ZGw08PR Wiring Connection |
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Caution: |
The RJ45 socket is only for factory calibration use, not for LAN, it was covered by plastic cover, the |
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incorrect RJ 45 connection will have the risk of circuit damage or irreparable damage to devices. |
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| Wiring Connection |
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When the power has been connected, The ZGw08VRC/ ZGw08PR CO2 monitor will begin to work. In order to meet you personal requirement, it is advisable to set up the customizing parameter. |
Setting the alarm function |
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1.Press the MODE, the speaker icon flashs simultaneously. |
| 2.Press ENTER, use up/down to select the on/off. |
3.Press ENTER again to save the setting.
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Setting the Calibration mode |
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1.Press the MODE ,the CALI icon flashs.
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2.Press the ENTER ,CALI show on the display. |
3.Adjust the display to the ambient CO2 value by up/down button.
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Press the MODE morn than 10 sec, CALI flashs. Calibration will be done automatically after 5 minutes and |
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LCD will display "Pass" or "Fail". If it shows " "fails", please try again. |
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Setting the Alarm parameter Mod |
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1.Press the MODE, the speaker icon flashs simultaneously.
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2.Press ENTER. Using the Up/Down to set the parameter. |
3.Press the ENTER again to save the data. |
| Remark. |
There have AL1 & AL2 when you press the mode. You can set the two different level on your opinion. |
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The resoulation is 100 ppm per times. |
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Using the ReFactSet Mode |
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| 1.Press MODE, The ReFactSet flashs simultaneously. |
2.Press ENTER,Using the Up/Down to select the No/Yes.
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3.After the slecting,Press the ENTER to save the changes.
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| Remark. |
If the user setting the data or calibrate the sensor wrongly. You can use the ReFactSet (Recover the |
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factory Setting) to come back the factory setting data. |
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Method - NDIR |
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Sample Method - Diffusion or flow through (50 ~200 ml/min) |
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Performance - CO2
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ZGw08PR |
| Measurement Range |
0~3,000ppm |
Resolution |
| 1ppm at 0~1,000ppm; |
| 5ppm at 1,001~2,000ppm; |
| 10ppm at 2,001~3,000ppm |
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| Accuracy |
±75 ppm or ±5% of reading of reading whichever is greater |
| Repeatability |
±20 ppm @400ppm |
| Temperature Dependence |
±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
(Corrected via user input for altitude) |
| Response Time |
<2min for 90% of step change |
| Warm-Up Time |
<60 seconds at 22°C |
| Zone LED Display |
Green:<800ppm, Yellow:800~1200ppm, Red: >1200ppm |
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Outputs |
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Linear Voltage Output: 0-10VDC (ZGw08VRC only) |
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| Linear Current Loop Output: |
4-20mA (Max Load is 500 Ohm) (ZGw08VRC only) |
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| Relay Output: |
30VDC or 250VAC, max 2A ., SPST .Normal Open |
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| Power Supply |
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| ZGw08VRC: |
18~26VAC RMS 50/60Hz or 18~36VDC (Double insulated, Full-wave |
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rectifier, no polarity input) |
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ZGw08PR: 6V AC adapter @ the power entry |
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General Operating Conditions |
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Operating Temperature: 0-50°C (32-122°F) 0-95% RH, non-condensing |
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Storage Temperature: -20 to 60°C ( -4 to 140°F) |
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Dimensions |
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Weight (including batteries)： |
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Calibration & Warranty |
Notice: |
Before calibrating ,you need standard gas or semi-standard gas, there are 3 |
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methods to get standard gas. |
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Method A: use CO2 in office/building |
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Use two Meters (One is the device for calibration. |
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The other one is a calibrated (new) one. |
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Use ambient room gas for calibration in office, waiting at least 10min,until the |
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CO2 reading doesn't change (notice: user must not breathe toward the ZGw08VRC/ZGw08PR, CO2 from the user will affect the reading of ZGw08VRC/ ZGw08PR) |
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Use the reading of the new device as the standard. |
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Calibrate the device by the Cali Mode instruction. |
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Method B: use CO2 outsides |
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Use ambient room gas for calibration outsides, waiting at least 10min, until the |
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CO2 reading doesn't change ( notice: user must not breathe toward the |
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ZGw08VRC/ ZGw08PR, CO2 from the user will affect the reading of ZGw08VRC/ |
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ZGw08PR) |
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Use 380~420ppm as the standard reading. |
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Calibrate the device by the Cali Mode instruction. |
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Method C: use standard CO2 in the bottle |
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Pump the standard CO2 gas(0~1000ppm, flux = 0.1~0.2 liter/min) into the |
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ZGw08VRC/ ZGw08PR from the Gas Entry Hole waiting about 2~3min. |
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Calibrate the device by the Cali Mode instruction. |
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| Fault Codes & Troubleshooting Guide |
This section includes a list of Frequently Asked Questions for problems you may encounter with the ZGw08VRC CO2 Monitor.. |
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No. |
LCD Fault Icon |
Description
(of the fault) |
Indication |
Suggested Actions |
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Er3 |
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The ambient temperature has exceeded the temperature range 0°C to 50°C ( 32°F to 122°F) |
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“Er3” flash |
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This error will disappear when the temperature returns to the range between 0°C and 50°C
( 32°F to 122°F) |
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Er4 |
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Some wrong measurement or the sensor has exceeded its expected life |
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“Er4” flash |
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Please wait when CO2 reading recover after around 30 minutes, if “Er4” still appears, please unplug the AC adapter and reconnect it.
If the “Er4” always appears, please contact with the local dealer. |
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Er5
Er6 |
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“Er5”
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“Er6”
flash |
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Please unplug the AC adapter and reconnect it.
If the “Er5,Er6” always appear, please contact with the local dealer. |
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Er7 |
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Internal Data Transmission Error |
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“Er7” flash |
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Please unplug the AC adapter and reconnect it. |
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Kinds of Adapters for your option
(Only for ZGw08PR)
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ACAeu |
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including |
German、Italy ) |
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including |
Singapore、 |
BS1363 ) |
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Available Packages
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