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the lower display will go through the following sequence: TempºC -> TempºF -> Vent Rate lps -> Vent Rate cfm/p
* Note: lps refers to Liter Per Second Per Person; cfm/p refers to Cubic Feet Per Minute Per Person
■ Operation of Mode Adjustment
1. ALTI Mode:
1.1. Press the Mode Button (5), ALTI ashs
1.2. Press Mode (5) to alter between m(meters) and ft(feet) .
1.3. Press Up/Down (4/3) to adjust the altitude (Step=100m/500ft)
1.4. Press the Enter Button (2), save or leave the ALTI Mode, return to UserMode
2. ALARM Mode
2.1. Adjust the alarm level
2.1.1. Press the Mode button (5), until ALARM ashs
2.1.2. Press Enter Button(2), “CO2” icon ashs.
2.1.3. Press Up/Down(4/3) to adjust the alarm level (≥ 1,000 ppm, interval is ±100ppm; <1,000 ppm, interval is ±50 ppm)
2.1.4. Press the Enter (2), save the setting and return to UserMode.
2.2. Turn ON/OFF the ALARM
2.2.1. Press the Mode button (5), until “Speaker Icon” ashs.
2.2.2. Press Enter Button (2)
2.2.3. Press Up/Down (4/3) to turn on/off the ALARM,
2.2.4. Press the Enter (2), save the setting and return to UserMode.
3.OUTSIDE Mode
** Note:Ventilation Rate
Ventilate rate represents how much air is introduced into the indoor space from the outside. Low values indicate low ventilation
rates and potentially poor air quality. High levels indicate excessive ventilation and potential excessive energy usage. To obtain
an accurate measurement, reading should be taken 2~3 hours after occupancy has stabilized in a space or at a peak in daily
CO2concentrations. In indoor air quality control, CO2value is an indicator of ventilation rate. 400ppm (Parts Per Million) is
the default CO2concentration outside (according to ASHRAE: American Society of Heating, Refrigeration and Air conditioning
Engineers)
3.1. Press the Mode button (5) ,until OUTSIDE ashs
3.2. Press Enter (2), show OUTSIDE, CO2 and PPM ash Press Up/Down (4/3) to adjust the reading
3.3. Press the Enter (2), save the setting and return to UserMode. After modication, the VENT Rate will change
4. CALI Mode
The CO2 monitor has been calibrated in the factory and should recalibrate every 12 months with a specied
concentration of CO2.Sensor drift usually occurs in linearity. Please follow below steps.
4.1. If battery icon shows low power, please replace new batteries or use AC adapter
4.2. Press the Mode button (5), until CALI ashs
4.3. Press Enter (2), CALI shows on display
4.4. Adjust the lower display to ambient CO2value by Up/Down (4/3) Button.
4.5. Press Mode button (5) more than 10 sec., CALIBRATING ashs. Calibration will be done after 5 min and LCD will
appear “PASS”.If LCD appear “FAIL”, please calibrate once again.
4.6. Press Enter (2), return to UserMode
5. DATA LOGGER Mode
AirCO2ntrol 3000 has a built-in datalogger , which can provide users the past CO2and temperature readings within the past
24 hours.
5.1. Press the Mode button (5), until DATALOGGER ashs
5.2. Press Enter (2),CO2and Temperature show up
Press Up/Down (4/3) to page up/down the reading.
5.3. Press the Enter (2), return to UserMode
6. MaxMin Mode
AirCO2ntrol 3000 has a built-in MaxMin mode, which can provide users the Maximum and Minimum CO2readings since the
device has last been turned on.
6.1. Press the Mode button (5), until MAX MIN ashs
6.2. Press Enter button (2), MAX and MIN CO2reading alternatively shows.
6.3. “CLR” will ash if press Up/Down (4/3)
Press Enter (2),to CLEAR the MAX and MIN record .
6.4. Press Mode or Enter (5), leave rcFS Mode, return to UserMode
7. rcFSMode:
If user set or calibrated the sensor wrongly, you can recover the factory setting
7.1. Press the Mode button (5), until rcFS ashs on the lower display
7.2. Press Enter (2), “no” shows on the upper display
7.3. Press Up/Down (4/3), “no” change to “yes” Press Enter (2), Factory Setting will reload, return to UserMod
7.4. Press Enter (5), leave rcFS Mode, return to UserMode;
7. SPECIFICATIONS (Preliminary Version)
Method - NDIR, Display - LCD Independent CO2and Temperature readings. Calculates and Displays Ventilation Rates
Sample Method -Diffusion or ow through (50 ~200 ml/min)
Performance CO2
Measurement Range: 0-3,000 ppm display
Display Resolution: 1ppm at 0~1000ppm; 5ppm at 1001~2000ppm; 10ppm at 2001~3000ppm
Repeatability: ±20 ppm
Temperature Dependence: ±0.1% 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 63% of step change
Warm-Up Time: < 60 seconds at 22°C
Calibration Interval: 12 months, offset adjustment using single gas at 0-1000 ppm CO2. Full factory
calibration available
Performance - Temperature
Temperature Range: Display 32 to 122°F (0 to 50°C)
Display Resolution: 0.1°F (0.1°C)
Display Options: °F / °C, or Off. Set with Up / Down button
Response Time: 20-30 minutes (case must equilibrate with environment)
Outputs: OC: Normally Low,100mA max. @ 24 VDC. Adjustable setpoint, factory setting is 1000ppm,hysteresis is 50ppm
One RJ-45 Connector digital output
General Operating Conditions Operating Temperature: 32-122°F (0-50°C) 0-95% RH, non-condensing
Storage Temperature: -4 to 140°F (-20 to 60°C)
6. OPERATION INSTRUCTIONS
■ PowerOn
Press Power button(1) to turn on the device after placing 4 AA batteries into the battery holder or AC adapter plug into the DC
socket . Once power on, CO2reading will show after 15 seconds of warm up.
■ WarmUp
It lasts approximately 1min before WARMUP disappears; all the functions will not response during warm up.
■ User Mode
After warm up, the device will stabilize and display the normal CO2Reading (Upper Display)- remain visible at all times.
■ Temp and Ventilation Rates (Lower Display)
The Up/Down button(4/3) allows you to scroll through the Temperature and Ventilation Modes.When pressing the Up button,