CO250 Portable Indoor Air Quality
Giya sa Gumagamit
CO2 Metro
Model nga CO250
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Pasiuna
Congratulations on your purchase of this Model CO250 Meter. This meter measures CO2 (Carbon Dioxide) levels, air temp., dew point, wet bulb temperature and humidity and is an ideal instrument for indoor air quality (IAQ) diagnosis. This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service.
Deskripsyon sa metro
METER
1. Temperature and Humidity sensor
2. CO2 sensor (rear)
3. Ang display sa LCD
4. AC Adaptor connector
5. RS232 pantalan
6. Keypad
7. Baterya nga kompartamento (likud)
DISPLAY SA LCD
1. CO2 concentration in ppm 2. Relative Humidity in % 3. Air Temperature, Dew Point or
Basa nga Temperatura sa Bulb
SYMBOLS TWA STEL HOLD MIN/MAX
DP AIR WBT % C or F
Time weighted average (8 hours) Short-term exposure limit (15 minutes weighted average) Freezes current reading on display Minimum/Maximum readings
Low battery indicator Dew point temperature Air temperature Wet bulb temperature Unit of relative humidity Celsius/Fahrenheit
KEYPAD
Turns the meter on and off.
Enters setup mode.
Sets as non-sleep mode with
.
Exits setup page/mode.
Enters CO2 calibration with
.
Enters RH calibration with
Freezes the current reading on display. Cancels data hold function.
Activates or cancels the backlight. Selects unit or increases value in setup.
Selects AIR, DP, WBT temps display. Selects unit or decreases value in setup.
Activates MIN,MAX,STEL,TWA function. Saves and finishes settings.
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Operasyon
PAG-INSTALL SA BATERY
The meter is powered by 4 AA batteries or a DC adaptor. Install the batteries into the rear battery
compartment observing correct polarity. When an adaptor is used, the batteries will be disconnected
from the meter. The adaptor cannot be used as a battery charger. When the battery voltage tulo
below the required level, and “Lob” will appear on the display, a beeper sounds and readings
are no longer displayed. (Press any key but the
to stop the beeps). Replace the batteries to
ipadayon ang normal nga operasyon.
Ikaw, ingon ang end user, ligal nga gigapos (ordinansa sa Baterya sa EU) aron ibalik ang tanan nga gigamit nga baterya, gidili ang paglabay sa basura sa panimalay! Mahimo nimong itugyan ang imong gigamit nga mga baterya / natipon sa mga punto sa pagkolekta sa imong komunidad o bisan diin gibaligya ang mga baterya / natipon!
Paglabay: Sunda ang balido nga legal nga mga stipulasyon kalabot sa paglabay sa device sa katapusan sa iyang lifecycle
POWER ON/OFF
Press
to turn the meter on and off. At power up, the meter emits a short beep and performs a
30 second countdown for meter warm up. It then enters the normal operation mode with current
CO2, temperature and humidity readings displayed.
TAKING MEASUREMENT The meter starts measurements when powered on and updates readings every second. If the
operating environment changes (ex. from high to low temp.), it takes 30 seconds for CO2 sensor to respond and 30 minutes for RH.
NOTE: Do not hold the meter close to your mouth or any other source of CO2.
AIR, DP and WBT Measurements Press the DP/WBT button to switch temperatures display. The lower left display will cycle from “AIR” air temperature, “DP” dew point temperature and “WBT” wet bulb temperature.
DATA HOLD Press the HOLD button to freeze the readings, the “HOLD” icon is displayed on the left top of the display. All current readings are held unchanged, except STEL and TWA. Press “HOLD” again to
cancel the hold function.
BACKLIGHT Press the MODE/
buton alang sa labaw pa sa 1 segundo aron ma-aktibo o kanselahon ang function sa backlight.
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MIN,MAX,STEL,TWA In the normal mode, press the Max/AV button to see the minimum, maximum, and weighted average readings. With each press of the Max/AV button, the meter displays MIN, MAX, STEL, TWA in sequence and then returns to the normal mode.
Sa MIN ug MAX mode, gipakita sa metro ang minimum ug maximum nga pagbasa sa CO2 (main display), AIR, DP o WB nga temperatura (ubos nga wala nga display) ug Humidity (ubos nga tuo nga display).
Sa STEL ug TWA mode, ang main display nagpakita sa gibug-aton nga average sa CO2 nga mga pagbasa sa miaging 15 minutos (STEL) o 8 ka oras (TWA). Ang ubos nga mga display mao ang kasamtangan nga mga sukod
NOTE: 1. If the meter has been powered on for less than 15 minutes, the STEL value will be the weighted average of readings taken since power on. As well, the TWA mode will display a weighted average of readings prior to 8 hours of operation. 2. The CO250 takes at least 5 minutes to calculate STEL and TWA. The display shows “—-” during the first 5 minutes from power on.
3. The STEL and TWA values will keep updating every 5 minutes.
ALARM
The meter features an audible alarm to give warnings when CO2 concentration exceeds the set
limit. It emits beeps (Abt.80dB) when CO2 level goes over the set value and stops when any key
(gawas
) is pressed or the readings fall below the set value. It beeps again if the value
exceeds the limit. Restart the meter if the beeper will not stop.
AUTO POWER OFF The meter turns off automatically after 20 minutes of inactivity. To override the function, press and
pugngan ang
and HOLD buttons until “n” appears in the display (approx. 2 seconds) while
turning on the meter on. NOTE: Auto sleep function will be disabled during calibration mode.
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SETUP (limit sa alarma ug sukod sa temperatura)
In the normal mode press and hold the
buton sulod sa kapin sa 1 ka segundo aron makasulod sa setup mode.
To exit the setup mode, press the CAL/Esc button when either P1.0 or P3.0 is displayed.
P1.0 CO2 ALARM Limit When entering setup mode, P1.0 and “AL” are displayed.
Press the MN/AV button to scroll to P1.1 for setting CO2 alarm threshold. The current CO2 set value will be blinking.
Press the MODE/ button to increase or the DP/WBT/ button to decrease the value. Each press adjusts 100 ppm. The alarm range is from 100 to 9900ppm. When the preferred alarm value is set, press the MN/AV button to exit and save the setting or the CAL/Esc button to exit without saving and return to P1.0.
P3.0 TEMPERATURE SCALE Press the MODE/ button or the DP/WBT/ button in P1.0 to access P3.0 for setting the temperature scale. Press the MN/AV button to go into P3.1 for setting the temperature units. The currently selected units (°C or °F) will be blinking in the display. To switch units, press the MODE/ button. Press the MN/AV button to save the setting or press the CAL/Esc button exit without saving and return to P3.0.
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Pag-calibrate
CO2 CALIBRATION The meter is calibrated to a standard 400ppm CO2 concentration at the factory
NOTE: When the accuracy becomes a concern or after a year of use, return to Extech for a standard calibration.
CAUTION: Do not calibrate the meter in an atmosphere of unknown CO2 concentration.
1. Place the meter in the 400ppm calibration chamber. Turn the meter on and hold down the CAL/Esc and MODE/ buttons simultaneously to enter CO2 calibration mode. 400ppm and “CAL” will blink on the LCD while performing calibration.
2. Wait about 5 minutes until the blinking stops. The calibration is then completed and the meter automatically returns to the normal mode.
NOTE: Ensure the batteries are fresh prior to calibration to prevent an interruption or failed calibration.
RH CALIBRATION The meter is calibrated to a standard 33% and 75% salt solution bottle.
CAUTION: Do not calibrate the humidity without the default calibration salt. Otherwise, permanent damage could occur. Contact the Extech for calibration salts or services.
33% nga pagkakalibrate
1. Plug the sensor probe into 33% salt bottle.
2. In the normal mode, Press and Hold the CAL/Esc and DP/WBT/ buttons to enter the 33% calibration. “CAL” and calibrating value (32.7% if at 25°C) will blink on the LCD with current temperature at the left.
3. The meter is now calibrating, and will finish in about 60 minutes when “CAL” and humidity stop blinking.
75% nga pagkakalibrate
1. After the 33% calibration, plug the sensor probe into a 75% salt bottle.
2. Press the MN/AV button to enter 75% calibration.
3. “CAL” and calibrating value (75.2% if at 25°C) will blink on the LCD with current temperature at the left.
4. The meter is now calibrating. Wait about 60 minutes until the blinking stops, then calibration is completed and the meter will return to normal mode.
NOTE: Single point calibrations are allowed. To calibrate 33% only, press CAL/Esc and exit when 33% calibration is completed. To calibrate 75% only, press MODE/ within the 5 minutes while initializing 33% calibration.
KONEKSIYON sa PC
The meter is equipped with an RS-232 PC interface jack (3.5mm phono) for connection to a PC. The supplied cable and WindowsTM compatible software allows the user to store readings in a text file and display real-time measurements in a series of selectable formats. For more information or specific operating instructions, refer to the User Guide included with the software.
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Mga detalye
Function CO2
Temperature Humidity Wet Bulb Dew Point
Sakop
Katukma sa Pagsulbad
0 hangtod 5000ppm
1ppm
±(%5rdg + 50ppm)
5000 to 9999ppm 1ppm
Wala gipiho
Pressure dependence: +1.6% reading per kPa deviation from
normal pressure, 100kPa
-10 to 60°C 14 to 140°F
0.1°
± 0.6 ° C / 0.9 ° F
0.0 ngadto sa 99.9%
0.1%
±3%(10 to 90%) ±5%(< or > 10 to 90%)
-5 to 60°C 23 to 140°F
0.1°
Gikalkulo gikan sa RH ug
-20 ngadto sa 60°C -4 ngadto sa 140°F
0.1°
Temperatura
Type sa Display Sensor
Operating Conditions Storage Conditions Power Supply Battery Life Dimensions / Weight
Triple LCD nga adunay backlight
CO2: NDIR (non-dispersive infrared) technology Humidity: Capacitance sensor; Temperature (air): Thermistor 0 to 50oC (32 to 122oF); < 95% RH non-condensing -20 to 60oC ( -4 to 140oF); <99% RH non-condensing
4 x 1.5V `AA’ batteries or AC adaptor (9V/1A)
gibanabana. 24 oras (alkaline nga mga baterya)
200x70x57mm (7.9×2.7×2.3″)/190g (6.7 oz.)
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Pagmentinar
CLEANING AND STORAGE 1. The meter should be cleaned with a damp panapton ug malumo nga detergent kung gikinahanglan. Ayaw gamita ang mga solvent o abrasive.
2. Store the meter in an area with moderate temperature and humidity (refer to the operating and storage range in the specifications chart earlier in this manual).
PAG-USAB
Dili makapadayon
Press
for more than 0.3 seconds and try again. Check that the batteries have good contact
and the correct polarity or that the AC adaptor is properly connected.
Slow response Check whether the air flow channels on the rear of the meter are blocked.
Error messages E01: CO2 sensor damaged. E02: The value is under range. E03: The value is over range. E04: The original data error results in this error (DP, WB) E07: Too low voltage to measure CO2, replace batteries or use an adaptor. E11: Retry humidity calibration. E17: Retry CO2 calibration. E31: Temperature sensor damaged. E34: Humidity sensor damaged.
CO2 Levels ug Guidelines
Non-Enforced Reference levels: 250 – 350 ppm background (normal) outdoor air level 350- 1,000 ppm – typical level found in occupied spaces with good air exchange. 1,000 2,000 ppm – level associated with complaints of drowsiness and poor air. 2,000 5,000 ppm level associated with headaches, sleepiness, and stagnant, stale, stuffy air. Poor concentration, loss of attention, increased heart rate and slight nausea may also be present. >5,000 ppm Exposure may lead to serious oxygen deprivation resulting in permanent brain damage, coma and even death.
Mga limitasyon sa pagkaladlad sa regulasyon:
ASHRAE Standard 62-1989: 1000ppm: CO2 nga konsentrasyon sa giokupar nga bilding kinahanglang dili molapas sa 1000ppm.
OSHA: 5000ppm: Time weighted average sa lima ka 8-hour nga mga adlaw sa trabaho kinahanglan dili molapas sa 5000ppm
Building bulletin 101 (Bb101): 1500ppm. Ang mga sumbanan sa UK alang sa mga eskwelahan nag-ingon nga ang CO2 sa aberids sa tibuok adlaw (ie 9am hangtod 3.30pm) kinahanglan dili molapas sa 1500ppm.
Germany, Japan, Australia, UK…: 5000ppm, 8 hours weighted average in occupational exposure limit is 5000ppm.
Copyright © 2013 FLIR Systems, Inc.
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Mga Dokumento / Mga Kapanguhaan
| EXTECH CO250 Portable Indoor Air Quality [pdf] Giya sa Gumagamit CO250 Portable Indoor Air Quality, CO250, Portable Indoor Air Quality, Indoor Air Quality, Air Quality, Quality |
