AZ Instrument CO2 Trend Monitor Humidity Temperature Meter Instruction Manual

AZ Instrument CO2 Trend Monitor Humidity Temperature Meter

FAQs

• Q: How often should I calibrate the CO2 meter?
  • A: It is recommended to calibrate the CO2 meter if the CO2 levels are not within the range of 350~450ppm or if there is a noticeable discrepancy in readings.
• Q: Can I use rechargeable batteries with the device?
  • A: It is advised to use non-rechargeable AAA batteries for optimal performance and battery life.
• Q: How do I activate the CO2 concentration alarm buzzer?
  • A: The CO2 concentration alarm buzzer can be activated through the keypad. Refer to the manual for detailed instructions on how to enable this feature.

INTRODUCTION

• This is a battery-operated device with anti-theft and anti-modification functions to be your best indoor air quality helper for public space management.
• Equipped with an NDIR sensor and easy to use, in addition to measuring the CO2 concentration, it also measures relative humidity, dew point, and ambient temperature.
• It is also a smart recorder to memorize the peak and average value of the past 24 hours.

MATERIAL SUPPLIED

The standard package contains below:

• CO2 monitor x 1pc
• AAA battery x 3pcs
• Anti-theft hanging screw set
• Operation manual x 1pc

POWER UP

• This CO2 meter is designed for desktop or wall mount use. It is extremely energy saving and powered up by 3pcs AAA batteries.
• Remove the battery cover and install 3 brand new AAA batteries in correct polarity and good contact, then, put back the battery cover.

CAUTION

• Please remove batteries and store them well when this monitor is left idle for long.
• The brand of the three batteries is better to be the same and don’t mix new and old batteries.
• The vents allow the air circulation for measurement and the ventilation should not be blocked.

ANTI-THEFT

If the monitor is used in public space, please install the enclosed stainless anti-theft hanger and fix it to the wall via provided screw and screwdriver.

ANTI-MODIFICATION

• If the monitor is used in a public space, you may activate the anti-modification password feature to avoid setting changes. This feature is default OFF. See the “SETUP” password section to read the details.

PRODUCT FEATURE

• Extraordinary power saving feature to provide 1-year monitoring by only 3 pieces AAA batteries.
• One key press to review the logged 8-hour average, 24-hour average, and 24-hour peak value
• NDIR (non-dispersive infrared) waveguide CO2 technology
• Programable 3 emoji icons to indicate indoor air quality level
• The buzzer function can be activated while required, the mute function is available while the buzzer function is on The CO2 manual calibration feature is included.

LET’S START

1. Pre-check: This is to confirm the meter is good to use after transportation
   • Must be
   1. Sunny day
   2. Away from any CO2 source
2. Pre-check: Leave the monitor next to the open window for 20 minutes
   • CO2 must be 350~450ppm (If not, please see calibration page.)
3. Install in a suitable place
   • 1.5~1.7 meter height is suitable

DISPLAY

1. CO2 concentration, parts per million (ppm). NDIR CO2 sensor, display up to 9999ppm
2. Ambient /Dew point temperature. C/F switchable. Range 0.0~50.0C (32.0~122.0F). Relative humidity. Range 5~95%RH
3. Logged 24 or 8-hour statistic data.
4. ECO mode icon. This means the display only updates once a minute.
5. The low battery icon appears to remind the user to replace the batteries
6. Lock icon to indicate the meter can’t be changed without password
7. CO2 concentration alarm buzzer. The buzzer is defaulted as OFF and can be activated through keypad
8. Three emojis.The default status of the current CO2 level <800ppm 800ppm~1000ppm >1000ppm

KEYPAD

4 functional keys:

• Short press to turn on the meter. Long press 3 seconds to turn off the meter. *Note 1
• Press to check the logged statistics value of 8-hr average, 24-hr average, and 24-hr peak value. *Note 1
• Press a longer time to enter setup mode. *Note 1 While in setup mode, press to confirm the setting.
• While buzzer sounds, press to mute
• While in setup mode, press to adjust value
• & To proceed 400ppm CO2 calibration
• & While the lock function is on, press together to enter the unlock process
  • Note 1, If the meter is protected by a password, unlock it first.

OPERATION

1. Power on and Measure:
   • Press the “POWER” key to turn on and 10 seconds of warm-up starts, the meter will then start to measure CO2 concentration, and ambient temp. relative humidity and also display dew point temperature.
2. Statistic value of logged CO2 measurement:
   • Press the “ AVG “ key to check the logged statistics value of the past 8-hr average, 24-hr average and 24-hr peak value. This is a useful tool for you to check history without downloading effort.
3. Buzzer Mode:
   • Besides value display, this meter is also equipped with programmable buzzer features. There are 2 buzzer modes: OFF&ON. Default OFF.
   • While CO2 exceeds the AL threshold and the buzzer feature is ON, the buzzer beeps once a second until it is manually off by pressing the “ MUTE” key.
   • After pressing the mute key, the “Buzzer ON” icon keeps flashing until the CO2 no longer exceeds the AL threshold.
4. Password:
   • Press “ SET ”& “ MUTE “ simultaneously to enter the password unlock procedure.
   • The value flashes from the first digit. Press “ + ” to adjust.
   • Once selected, press “ SET “ to confirm and adjust the next digit, and repeat till the 4-digit password is fully entered. “ “ shall now disappear.
5. Setup mode:
   • Long press the ” SET “ key till entering the setup mode. Then, press the ” SET “ key to select features in sequence: Emoji & Alarm threshold, Unit (temperature unit), Buzzer, Password, ABC calibration, and ECO (energy-saving mode) Press the” + ” key to adjust the value for each feature.
   • Note 2: During the setting process, the device will return to the main screen after 30 sec of idle time.
   • Emoji & Alarm threshold:
   • Three emojis. The default status is <800ppm, 800ppm~1000ppm >1000ppm.
   • The threshold to turn a smiling face to flat is adjustable from 600ppm to 3,000 ppm, the interval is 100ppm.
   • The threshold to turn flat face to cry is adjustable from 600ppm to 3,000ppm, the interval is 100ppm. This threshold is also related to the buzzer alarm trigger. This value shall be bigger than the previous emoji.
   • If two thresholds are set intentionally the same, flat emoji will be skipped.
   • Ex: If both threshold is set as 800ppm, below 800 is smile, above 800 will be cry and also turn on buzzer sound.
   • Temperature unit:
   • Press “+” to switch between C and F. Press ” SET” to the next feature.
   • Buzzer activation:
   • Buzzer is default OFF for use in quiet places. Press “+” to adjust it to ON. Press “ SET “ to next feature
   • Password:
   • Password lock is default OFF. If you plan to install this meter in a public space and want to avoid unauthorized operation, turn this feature to ON.
   • Press “+” to adjust it to ON, then, press the “SET” key to choose 4 digits.
   • This is a 4-digit password lock. Press “+” to adjust and then press “SET ”to confirm.
   • ABC CO2 Calibration:
   • ABC means Auto Baseline Calibration. This meter will use the lowest CO2 value in the past 7.5 days 400ppm to auto-calibrate itself.
   • This feature is excellent for users who can’t take off the meter from a wall to do fresh air calibration next to an opened window, such as a school.
   • However, please never turn on the ABC function if this meter is installed in a closed public place where people are there 24/7, such as a hospital. Press “+” to adjust it to ON. Press “ SET “ to the next feature.
   • ECO:
   • The default ECO is “OFF’ and displays an update every 10 seconds. After ECO mode is turned on, the display updates once a minute. ECO mode can provide 1 year of usage without the need to change batteries.

CO2 CALIBRATION

• The meter is calibrated at standard 400ppm CO2 concentration in the factory. It’s suggested to do manual calibration regularly to maintain good accuracy.
• First of all, leave the meter in a known 400ppm CO2 condition for some minutes. press “ SET ” & “ + ”keys at the same time till “CAL” appears. Press “ + ” to choose no or yes then Press the “ SET ” key to start the calibration.
• After 300 seconds count down, the display shows “Pass” on display to indicate the calibration is done.
• Press the “SET” key to return to normal measuring mode.
• To quit calibration, press “ MUTE” longer time during any moment of the calibration period, except the final 15 seconds.

CAUTION:

• Do not calibrate the meter in the air with an unknown CO2 level, Otherwise, it will be taken as 400 ppm and leads to inaccurate measurement.
• The manual calibration is suggested to be done outdoors with good ventilation, fresh air, and sunny days where the CO2 level is around 400 ppm.
• Do not calibrate on rainy days because high humidity will affect the CO2 level in the air. Do not calibrate in places crowded with people or close to where there exists high CO2 such as ventilating outlets or fireplaces.
  • Must be
  1. Sunny day
  2. Away from any CO2 source

SPECIFICATION

ERROR CODE

Solution : Send back to repair
E03| The measured reading is above the upper limit
Solution : For CO2 E03, put the meter in fresh air for 5 mins. If it does not work, send it back to the repair
E02| Measured reading is under the lower limit
Solution : For CO2 E02, Re-calibrate. If it does not work, send it back to the repair
E04| The original data source is in E01~E03 condition.
Solution : For CO2 peak/avg. E04, fix the error code of CO2 first. For other E04, leave the meter in room condition for 30 mins. If not work, send it back to the repair
Fail| To indicate the calibration is fail
Solution : Put the meter in fresh and stable CO2 condition to calibrate again.
E36| To indicate the power is too low to cause CO2 sensor failure Solution: Replace with 3 same brand new batteries.

Can’t power on

• If a low battery icon appears, please change it to 3 same brand-new batteries. Don’t mix use different brands and new/old batteries.

I forgot the password I set

• Please contact the store where you purchase the meter from for further help.

WHAT TO DO IF AIR QUALITY IS BAD?

WARRANTY

WARRANTY & RETURN AUTHORIZATION

• The meter is warranted to be free from defects in material and workmanship for one year from the date of purchase.
• This warranty covers normal operation and does not cover misuse, abuse, alteration, neglect, improper maintenance, or damage resulting from leaking batteries.
• Proof of purchase is required for warranty repairs. The warranty is void if the meter has been opened.
• Authorization must be obtained from the supplier before returning items for any reason.
• When requiring an RA (Return Authorization), please include data regarding the defective reason, the meters are to be returned along with good packing to prevent any damage in delivery and insured against possible damage or loss.

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