GCH-2018 Carbon dioxide, Humidity, Temp., NDIR, CO 2 METER
Carbon dioxide, Humidity, Temp., NDIR, 0 to 4,000 ppm, RS232
CO 2 METER
Model : GCH-2018 ISO-9001, CE, IEC1010
FEATURES
* NDIR method principal for CO2 ( Carbon dioxide ) measurement, available for long term operation.
* High repeatability and high accuracy.
* Two probes, one is for CO2/Temp. measurement, the other probe is for Humidity/Temp./Dew point measurement.
* Separate probe, easy operation and convenient for remote measurement.
* CO2 function with alarm setting.
* Humidity measurement with fast response time.
* Large S-TN LCD, high contrast, easy readout.
* Data hold function for freezing the desired value on display.
* Records Maximum and Minimum readings with Recall.
* RS232/USB computer interface.
* Microprocessor circuit assures maximum possible accuracy, provides special functions and features.
* Heavy duty & compact housing with hard carrying case, designed for easy carry out & operation.
* Auto shut off is available to save battery life.
* Power supply from batteries or DC 9V adapter in.
GENERAL SPECIFICATIONS | ||
Circuit | Custom one-chip of microprocessor LSI circuit. | |
Display | LCD size : 52 mm x 38 mm dual function LCD display. | |
Measurement | CO2 ( Carbon dioxide ), Temp. | |
Humidity, Dew point, Temp. | ||
Unit | CO2 | ppm |
Humidity | % RH | |
Dew point | ℃,℉ | |
Temp. | ℃,℉ | |
Response Time
| CO2 : < 2 min. typically. @ Reach the 63% reading value @ Depend the environment air circulation. | |
Humidity/Dewpoint 10 to 30 seconds typically. @ Reach the 85% reading value @ Depend the environment air circulation. | ||
CO2 altitude compensation setting | 0 to 9,000 meters.
| |
Temperature Compensation | Automatic temp. compensation.
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Adavanced setting
| CO2 altitude value setting | |
CO2 alarrm value setting | ||
℃/℉ setting | ||
Auto power off enable/disable setting | ||
Alarm setting | For CO2 measurement only. | |
Data Hold | Freeze the display reading. | |
Memory Recall | Maximum & Minimum value. | |
Display Sampling Time | Approx. 1 second.
| |
Power off
| Auto shut off saves battery life or manual off by push button. | |
Data Output
| RS 232/USB PC serial interface. * Connect the optional RS232 cable UPCB-02 will get the RS232 plug. * Connect the optional USB cable USB-01 will get the USB plug. | |
Probes no.
| Two probes : * Probe 1 is for CO2, Temp. measurement * Probe 2 is for Humidity , Dewpoint Temp. measurement. | |
Operating Temperature | 0 to 50℃ . | |
Operating Humidity
| Main instrument : Less than 85% R.H. | |
C02 probe : Less than 85% R.H. | ||
Humidity probe : 0 to 95 %RH. | ||
Power Supply
| DC 1.5 V battery ( UM3, AA ) x 6 PCs, or equivalent. | |
Power Current
| CO2 measurement Approx. DC 9.6 mA for 90% period. Approx. DC 128 mA for 10% period. | |
Humidity measurement Approx. DC 5.6 mA. | ||
Weight
| Main instrument : 372 g/0.82 LB. | |
CO2 probe : 158 g/0.35 LB. | ||
Humidity probe : 82 g/0.18 LB. | ||
Dimension
| Main instrument : 173 x 68 x 42 mm (7.9 x 2.7x 1.2 inch) | |
CO2 Probe : 185 x 38 x 26 mm | ||
Humidity Sensor Probe : 200 x 23 x 19 mm | ||
Accessories Included
| Instruction manual........................1 PC CO2 probe....................................1 PC Humidity probe.............................1 PC Hard Carrying case.......................1 PC | |
Optional Accessories
| ACV to DC 9V adapter RS232 cable, UPCB-02 USB cable, USB-01 Data Acquisition software, SW-U801-WIN | |
ELECTRICAL SPECIFICATIONS (23±5 )
Dew Point
℃ | Range | -25.3℃ to 48.9 ℃ |
Resolution | 0.1 ℃ | |
℉ | Range | -13.5 ℉ to 120.1℉ . |
Resolution | 0.1 . | |
Remark: * Dew Point display value is calculated from the Humidity/Temp. measurement automatically. * The Dew Point accuracy is sum accuracy value of
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