User Manual for AZ INSTRUMENT models including: 7727, CO2 Humidity Temp Desktop Monitor, Temp Desktop Monitor, CO2 Humidity Desktop Monitor, Desktop Monitor, Monitor
5.0 Trend Bar graph display indicates the status of CO2 records up to 24 hours "Now" bar graph displays the current CO2 and it is updated with new records every 4 seconds. "-3~-24" bar graphs display the average CO2 and it is updated with new records every 10 minutes.
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DocumentDocumentOPERATION MANUAL CO2, HUMIDITY, TEMP. DESKTOP MONITOR Model:7727 INTRODUCTION This is an accurate, smart and easy-to-use indoor air quality monitor. In addition to measuring the CO2 concentration, it also measures the ambient temperature and relative humidity. It is also a clock and provide CO2 trend of past 24 hours. This monitor is developed to be the best helper to checking the indoor air quality. Features: Large LCD displays CO2 value, humidity, temperature, current CO2 level good/ normal/ poor indicator, CO2 trend of past 24 hours and hour-minute clock. Touch panel to program the setting NDIR (non-dispersive infrared) waveguide CO2 technology 3-color backlight (green / yellow / red) gradually changes color with CO2 concentration. (AUTO mode) 7-color backlight to fit into home/office decoration and to be used as nightlight.(ON mode) Programmable audible alarm threshold Eco mode to turn backlight dim during night time Areas of application: Widely used in the office building, residential house, school, exhibition hall, shopping mall, meeting room, fitness center, restaurant and other public places where personal comfort and healthy are important. . MATERIAL SUPPLIED The standard package contains below: CO2 monitor x 1pc USB-C cable x 1pc NOTE: provided USB-C cable is for power charging only, can't be used for data transfer. Operation manual x 1pc POWER UP This CO2 meter is designed as desktop or wall mount use. It is mainly powered up by 5VDC through USB-C cable. For mobility, you may also use power bank for temporary use. Once CO2 is powered, the LCD will auto turn on. 1 Prepare an 5V USB adaptor (Not included in package) 2 Power up the meter through 3 USB type-C Power up the meter through USB type-C CAUTION Please take off the AC power adapter and store it well when this CO2 monitor left idle for long. Please use a standard USB power supply (such as PC's USB port, universal AC adapter with USB port). Improper power supply can cause serious damage to the device, or result in injury or death to the user. This CO2 monitor is for home use, not suitable for certifying the test results. If use this CO2 monitor for testing, it does not guarantee the test results. The vents allow the air circulation liquid for measurement of the CO2 concentration and the ventilation should not be blocked. 1 DISPLAY , KEYPAD, SPECIFICATION 7 6 5 1 2 3 4 1 CO2 concentration, parts per million (ppm). NDIR CO2 sensor, display up to 5000ppm 2 Ambient temperature. C/F switchable. Range 0.0~50.0C(32.0~122.0F) 3 Relative humidity.Range 5~95%RH 4 Real-time clock display.Real-time 24-hour clock (hour/minute) 5 Three emojis.The status of current CO2 level <800ppm 800ppm~1000ppm >1000ppm 6 Trend: 24-hour Historical Chart. Bar graph displays indicate the status of CO2 records up to 24 hours 7 CO2 concentration alarm buzzer. Buzzer is default as OFF and can be activated through keypad -Short press to switch between backlight mode. -Setting modes. Long press to enter setting mode + -While buzzer sounds, short press to mute -While in setting mode, press to adjust value SPECIFICATION Measuring range Response time CO2 200~5000 ppm, CO2 <2 mins (63% step change) Temperature 0.0~50.0oC (32.0~122.0oF) Humidity Resolution Accuracy 5~95% RH 1ppm , 0.1oC/oF, 1%RH Tair Humidity <2 mins (90% step change) <20 minutes ( 90% step change) Operating 0~50oC , 0~95% RH (avoid condensation) Storage -20~ 60oC,0~95%RH(avoid condensation) Power supply 5VDC USB type C port CO2 +50ppm+5% of reading(0~3000ppm) Power consumption <500mA Other range is 10% of reading Temperature +0.6oC/+0.9oF Buzzer ~70dB at 10cm distance Humidity +5%RH (at 25oC, 10~90%RH) ; +7%RH ( at 25oC , other range ) Meter size Weight 108 x 67 x 30 mm 90g Standard package Meter, manual ,USB type C cable 2 OPERATION 2 functional keys for setup purpose Mute Adjust value SETUP 1. Power on and Measure: -Connect the USB-C cable to a PC or 5VDC wall adapter or power bank to power on the device. -After power on and 10 seconds warm-up, the device will start to measure CO2 concentration, ambient temperature and relative humidity. 2. Backlight & Buzzer Mode : Besides value display, this meter is also equipped with programmable backlight and buzzer features. There are 4 different backlight modes: Auto, AL, ON and OFF. Default as Auto. There are 2 buzzer modes: OFF and ON. Default as OFF. -Short press " (SET)" key to display the existing backlight mode. To change it, press " " key to switch between Auto AL ON OFF. After selecting the mode, you do not need to press any key to confirm it, just wait for 3 seconds and it will return to normal display with the setting you choose. Backlight Mode Backlight Action Buzzer Action (while activated) Auto AL ON The backlight color varies with the CO2. <800ppm is green; 800ppm~1,000ppm is yellow; >1000ppm is red. Red threshold is programmable in P4.2 AL mode of setting function. While CO2 exceeds AL threshold, buzzer beep till it is manually off by short pressing " MUTE" key No backlight while below threshold. When While CO2 exceeds AL threshold, alarm level is exceeded, the backlight buzzer beep till it is manually off by is turned into red. The default is 1,000 short pressing " MUTE" key ppm and programmable in P4.2 of setting. The LCD backlight is always on and not related to CO2 value. The backlight color depends on the color you select in COL mode of setting. 7 colors to be selected. While CO2 exceeds AL threshold, buzzer beep till it is manually off by short pressing " MUTE" key OFF Turn off backlight functions at all time While CO2 exceeds AL threshold, buzzer beep till it is manually off by short pressing " MUTE" key 3. How to turn off buzzer: Buzzer function is default OFF in case of using in quiet places. It is required to activate buzzer function in setting mode while audible alarm is needed. While buzzer is activated and measured CO2 is over alarm threshold, buzzer sounds once a second till pressing " (mute)" to stop. 3 4. Setting mode: Long press " " key till entering the setting mode. Then, press " " key to select setting modes in sequence: COL (Backlight COLOR), AL (Alarm setting), Buzzer, ECO (energy-saving mode),Real-Time Clock and Unit (temperature unit). Press " + " key to adjust the parameters. *Note: During the setting process, the device will return to the main screen after 60 sec of idle time. 4.1 COL: The default LCD backlight color is white. A total of 7 colors are selectable. The color order is white, turquoise, blue, purple, red, yellow and green 4.2 AL: The default alarm setting is 1,000ppm. It is adjustable from 800ppm to 3,000ppm, the interval is 100ppm. This thresold is also related to buzzer alarm trigger and red backlight trigger in Auto mode and AL mode. 4.3 Buzzer activation: Buzzer is default OFF for using in quiet places. Press "+" to turn to ON. 4.4 ECO: The default ECO setting is "ON'. Press "+" key to select "OFF". After ECO mode is turned on, the backlight is dimmer during the period from 22:00 pm to 6:00am for saving power and easy reading. 4.5 Real-time: Set "12 Hour(AM/PM) or 24 Hour " by pressing "+" key. The default setting is 00:00(24 Hour Clock). The setting sequence is hour then minute. After setting "hour", press "SET" key to set "minute" (the interval is 1 hour / 1 minute). Press "+" key to adjust the value. Press and hold "+" key for 5 seconds to adjust faster. *Note: Complete the settings(hour-minute) to save the real-time values. 4.6 Temperature unit: Press "+" to switch between C and F 5.0 Trend Bar graph display indicates the status of CO2 records up to 24 hours "Now" bar graph displays the current CO2 and it is updated with new records every 4 seconds. "-3~-24" bar graphs display the average CO2 and it is updated with new records every 10 minutes. "-3" is the average CO2 concentration of the latest 3 hours. "-6" In past 6 hours, the average CO2 concentration of the first 3-hour. "-12" In past 12 hours, the average CO2 concentration of the first 6-hour. "-18" In past 18 hours, the average CO2 concentration of the first 6-hour. "-24" In past 24 hours, the average CO2 concentration of the first 6-hour. E.g. It is now 12:00 noon on 12/19. "-3" = 09:00~12:00 (12/19); "-6" = 06:00~09:00 (12/19); "-12" = 00:00~06:00 (12 /19) ; "-18" = 18:00 ~24:00 (12/18) ; "-24" = 12:00~18:00 (12/18) 4 6.0 CO2 Calibration The meter is calibrated at standard 400ppm CO2 concentration in 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 " " + " "keys at the same time till "CAL" appears. Pressing " " key to start the calibration. After a period of 250 seconds count down, the display show "Pass" on display to indicate the calibration is done. Press " " key return to normal measuring mode. CAUTION: Do not calibrate the meter in the air with unknown CO2 level. Otherwise, it will be taken as 400 ppm and leads to inaccurate measurement. The manual calibration is suggested to be done outdoor with good ventilation, fresh air and sunny day where CO2 level is around 400ppm. Do not calibrate in rainy day because high humidity will affect the CO2 level in air. Do not calibrate in places crowded with people or close to where exist high CO2 such as ventilating outlets or fireplaces. ERROR CODE AND SOLUTIONS CODE PROBLEM E1 CO2 sensor is damaged E2 Measured reading is under the lower limit E3 Measured reading is above the upper limit Fail To indicate the calibration is fail ? Can't power on Check whether the adaptor is well plugged. SOLUTION Send back to repair For CO2 E2: Re-calibrate. For other E2: leave the meter in room condition for 30 mins. If it not works, send back to repair For CO2 E3: put the meter in fresh air for 5 mins. For other E03: leave the meter in room condition for 30 mins. If it not works, send back to repair Put meter in fresh and stable Co2 condition for calibration WARRANTY & RETURN AUTHORIZATION The meter is warranted to be free from defects in material and workmanship for a period of 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. Warranty is void if the meter has been opened. Authorization must be obtained from the supplier before returning items for any reason. When requiring a 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. FAMILY PRODUCTS Other related CO2 products: Portable: Model 7752, 77532, 7755, 77535, 77596 and 77597 portable CO2/RH/Temp. meter Wall mount Model 7721,77231,7722 ,77232,7729,7530 Wall mount CO2/RH/Temp. meter Desktop: Model 7787, 7788and 7798 desktop CO2/RH/Temp. meter 5Corel PDF Engine Version 1.0.0.536 CorelDRAW 版本 12.0