Refine.
：
082012
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)
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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 Voltage 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)
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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)
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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
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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.
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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.
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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.
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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 9
th
Road, Science-Based Industrial
Park, HsinChu, Taiwan 300.
mm
[inches]
