AZ INSTRUMENT 7710 PM2.5 Monitor Instruction Manual

: June 9, 2024
: AZ INSTRUMENT

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AZ INSTRUMENT 7710 PM2.5 Monitor

AZ-INSTRUMENT-7710-PM2-5-Monitor-product-image

QUICK GUIDE

Power up the meter through USB type-C
You can star t using the logging function 30 minutes after booting
Plug & Play. Using Windows computer to setup the logging feature fits you
After hanging on the position you like, press long time to star togging.

INTRODUCTION

This is an accurate, fast, smart and easy-to-use air quality monitor. In addition to measure the PM2.5 and CO2 concentration, it also displays the hazardous level and monitor ambient temperature and relative humidity. This monitor not only provides instant value but also record measurement for future check.

Features

Large LED displays PM2.5, Health index, CO2 value, humidity and temperature.
12000 times auto logging. USB2.0 plug and play. No need to operate through specific software.
Wall mount display with dual light bar to provide hazardous level indicator from far distance
Touch panel to program the setting
High accuracy laser optical PM2.5 sensor
NDIR (non-dispersive infrared) waveguide CO2 technology
3-color lightbar (green / yellow / red) gradually changes color for PM2.5 and CO2 concentration.
CO2 automatic background calibration(called ABC) for long time drift compensation
Buzzer alarm function is included
Areas of application: Widely used in the office building, 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 both data transfer and power charging.
Operation manual x 1pc
Sticker & Screws for wall mount hanging, dust filter x 1 pack

POWER UP

This meter is designed as wall mount & desktop use. It is powered up by 5VDC through USB-C cable.
For mobility, you may also use power bank for temporary use. Once meter is powered, the LED will auto turn on.

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CAUTION
Please take off the AC power adapter when this 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.

The vents allow the air circulation liquid for measurement of the CO2 concentration and the ventilation should not be blocked.

DISPLAY , KEYPAD, SPECIFICATION

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CO2 concentration, parts per million (ppm). NDIR CO2 sensor, display up to 9999ppm
PM2.5 dust concentration, ug/m (ppm). range 0 to 999 ug/m
Health index, based on 24 hour PM2.5 average. Scale from 1 to 7. 1 is the best condition.
Ambient temperature. C/F switchable. Range -10.0~60.0C(14.0~140.0F)
Relative humidity. Range 0.1~99.9%RH
12000 times record auto logging function
CO2 and PM2.5 alarm buzzer. Buzzer is default as OFF and can be activated through keypad
Three color light bar. The status of measured CO2.Default <800ppm 800~1000ppm >1000ppm
Three color light bar. The status of measured PM2.5.Default: <35ug/m3 35~55ug/m3 >55ug/m3

SET
- Setting modes. Long press to enter setting mode
MUTE /+
- While buzzer sounds, short press to mute
- While in setting mode, press to adjust value
Press longer time to start or stop logging

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SPECIFICATION| |
---|---|---
Measuring range
CO2 0~9999 ppm,
PM2.5 0~999 ug/m3
Temperature -10.0~60.0oC (14.0~140.0oF) Humidity 0.1~99.9% RH| Response time
CO2 <30 seconds (63% step change) PM2.5 <30 seconds(90% step change) Tair <2 mins (90% step change)
Humidity <20 minutes ( 90% step change)|
Auto Logging 12000 times record

Operating 0~50oC , 0~95% RH (avoid condensation)
Storage -20~ 50oC,0~95%RH(avoid condensation)
Power supply 5VDC USB type C port

|
Resolution 1ppm,1ug/m3, 0.1oC/oF, 0.1%RH|
Accuracy
CO2 + 40ppm + 3% of reading(400~2000ppm)
Other range is 10% of reading
PM2.5 0-100: +/-10 ug/m3 ;101~999:+/-10% rdg.
Temperature + 0.6oC/ + 0.9oF Humidity +5%RH (at 25oC, 10~90%RH) ;
+7%RH ( at 25oC , other range )|
Power consumption <500mA|
Meter size| 257 x 168 x 45.5 mm (L x W x T)|
Weight| 610g|
Standard package Meter, manual, USB type C cable ,Hanging accessories.|

OPERATION

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, the LED count down for 10 seconds during warm-up.
The device will start to measure PM2.5, CO2 concentration, ambient temperature and relative humidity after warm-up.
Suggest to power on for at least 30 minutes before using the logging function.

Light bar

Besides the value display, this meter is also equipped with programmable light bar color feature.
There are 3 different light bar color for PM2.5 and CO2: Green, Yellow and Red.
The color auto switches according to the measured value.
Yellow color will be skipped if red light setting is identical to yellow.

| PM2.5| CO2
---|---|---
From Green turns into Yellow| Adjustable from 10 to 100 (default as 35)| Adjustable from 700 to 3000 (default as 800)
Yellow turns into flashing Red| Adjustable from 10 to 100 (default as 54)| Adjustable from 700 to 3000 (default as 1000)

Buzzer & 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 or PM2.5 is over alarm threshold, buzzer sounds once a second till pressing “ MUTE ” key to stop.

Health Index

Long term PM2.5 value brings higher impact to human health. The health index here provides you a quick indication to know the average PM2.5 level of past 24 hours. This index table is defined by USA EPA.

Health index level| AQI category| Breakpoints (ug/m 3 , 24H average)
---|---|---
1| Good| 0.0~12.0
2| Moderate| 12.1~35.4
3| Unhealthy for sensitive groups| 35.5~55.4
4| Unhealthy| 55.5~150.4
5| Very Unhealthy| 150.5~250.4
6| Hazardous| 250.5~350.4
7| Hazardous| 350.5~500

Setting

Long pressing “SET” key to enter the settings. And then press “SET” key to select setting modes in sequence: bL (Brightness of light bar), ALC 2.0 (CO2 Alarm color), ALC 3.0 (PM2.5 Alarm color), Unit (temperature unit), Buzzer, Pressure compensation and ABC (auto background calibration).
Press ” + ” key to adjust the parameters

Note: During the setting process, the device will return to the main screen after 25 sec of idle time.

Brightness of light bar (bLt): The brightness of light bar is From off to strong is 0 to 10, 0 is turned off and 10 is the strongest. Default as 6. Press “+” to adjust the brightness of light bar to fit your need. Though light bar might be set to off, it will still blink at weakest level 1 brightness while measured CO2 or PM2.5 is higher than alarm threshold.

Alarm(ALC, 0 &2.1): For CO2, green turns into yellow, adjustable from 700ppm to 3,000ppm, default 800. Yellow turns into red, adjustable from 700 to 3000ppm, default 1000. Red should be larger than yellow, yellow color will be skipped if red light setting is intentionally identical to yellow. Interval is 100ppm. This red light threshold is related to buzzer alarm trigger and red light bar trigger.
To adjust alarm threshold value, Press “+” key .

Alarm(ALC, 0 & 3.1): For PM2.5, green turns into yellow, adjustable from 10 to 100ug/m3, default 35.
Yellow turns into red, adjustable from 10 to 100ug/m3, default 55. Red should be larger than yellow,

Yellow color will be skipped if red light setting is intentionally identical to yellow. Interval is 1ug/m3.
This red light threshold is related to buzzer alarm trigger and red light bar trigger.

To adjust alarm threshold value, Press “+” key .
Temperature unit: Press “+” to switch between oC and oF
Buzzer activation: Buzzer is default OFF for using in quiet Press “+” to turn it to ON.
Pressure compensation: Default is 1013hpa, adjustable from 600 to 1100 This features benefits users who calibrate CO2 in sea level but then move the device to high mountain location to use.
CO2 ABC function: ABC means the lowest measured CO2 value in past 7 days will be used as 400ppm to auto calibrate the CO2 sensor to reduce the long term It is default as ON.
However, it is not suggested to turn on ABC feature in hospital, green house, winery or any less ventilated places where CO2 has no chance to get low. Press “+” to switch between ON and OFF.

Datalogging

In addition to be a real time monitor, you can also setup a recording sampling rate per your need to log the measured value and download the data later for future analysis use.
Before operation this function, strongly suggest to power on the device for 30 minutes.

Plug the USB port to any Windows O/S computer, it is plug and play, no need to install specific software ahead.Computer will recognize logger as a CD-ROM and pop up a new screen for configuration. If not, you may go to file management to click a recognized CR-ROM called “PDF Logger “

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Double click “Logger configuration tool” to setup the logger.
The logger configuration screen offers 8 languages to help you setup easily. The programmable parameters are sampling rate , start delay time and Logger ID.

The programmable sampling rate is from 1 min to 2 hours.
The start delay time is from 0 min to 12 hours.
By choosing 5 mins, it means the first record will be taken into memory file 5 mins after you pressing the start key.
*Logger ID is a 4 digit number you can use to give each logger a unique property code, such as 0928.

After setting, click “Save” to synchronize the setting and your PC time zone to this datalogger.
Finally, close the setup screen and disconnect logger with computer. Within 30 minutes, Install the logger to the place where you want to monitor and record the indoor air quality.
Long press “Start” key to activate the logger till “REC” LED flashes. If the logger is programmed as start delay 5 mins, the “REC” LED will consistent display and then turn into flashing after 5 minutes.
To stop recording before memory is full, press “STOP” key longer time till “REC” LED went off. There are 12000 records memory. While memory is full, FULL icon will appear on display to remind user.
Connect to computer to read out. The procedure is same like connecting to setup.
Click “Data Download” button on setup screen and choose where to save the logged file to.
The read out csv report can be opened by windows excel.

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The saved report contains:
Configuration Time, Start Time, Start delay, Sampling rate,
ID no. and Total records number.

Each record contains Date and time, PM2.5, CO2, TA, RH(%) and health index.

MAINTENANCE

CO2 CALIBRATION

The meter is calibrated at standard 400ppm CO2 concentration in factory.
While you turn on the meter for the first time, simply leave it in fresh air condition for 5 minutes to check if it is within specification.
If it is, no need to do re-calibration.
Nevertheless, you may still do either ABC or manual calibration regularly to maintain good accuracy.
Press “ SET” + “+”keys at the same time till “CAL” and “400” appears. Long pressing “SET” key to start the calibration.
During the calibration, “400” will flash on display. After 5 minutes, the display return to normal measuring mode to indicate the calibration is done.
During the calibration procedure, long pressing “+” key can quit the calibration function.

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

PM2.5 SENSOR MAINTENANCE

If dust adhering inside the sensor, the sensor itself has a function to remove the dust on the fan and the path by rotating the built-in fan at high speed when used for a long time, but completely removes all dust are not Please don’t consider to do cleaning of the sensor by any method.
Please keep the air OUT opening The filter installed in front of the air IN opening is to filter the big dust. Please replace filter while necessary.
Please avoid condensation inside the When inside of the sensor is moisturized, this product does not keep its proper function.
If the sensor is located close to noise source ( such as electric dust collector, etc), the sensor output may be affected by emitted noise.
Under the stable atmospheric environment, the sudden fluctuation of air humidity would have strong impact to accumulative rise and abrupt rise of PM
The strong fluctuation in RH is an essential condition for 32 times higher of abrupt rise in PM concentration so the probability of abrupt rise in PM2.5 concentration is as high as more than 80% due to the aftereffect of strong RH fluctuation
Please note, extremely high (ex: 85%) or low RH (35%) could not have big effect on the change in PM concentration but the fluctuation of RH can . This explains why the PM2.5 value abrupt rise while the weather is suddenly changed.
While see the need or after replacing filter, you can manually clean up the 5 sensor periodically.
Press “ SET” + “ / II ” keys at the same time to activate the sensor cleaning function for 10 seconds.
Please do it in clean environment.

ERROR CODE AND SOLUTIONS

CODE	PROBLEM	SOLUTION
E01	CO2 or PM2.5 sensor is damaged	Send back to repair
E02	Measured reading is under the lower limit	For CO2 E02: Re-

calibrate. For other E02: leave the meter in room condition for 30 mins.

If it not works, send back to repair

E03| Measured reading is above the upper limit| For CO2 E03: 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
E17| ABC mode of CO2 sensor is fail| Send back to repair
E31 34| Temp./RH measuring circuit is in error| Send back to repair

Can’t power on
Check whether the adaptor is well plugged and the 5VDC power supply is working.

Unexpected or expected blackout
While meter is programmed to record data, once the logging is started, blackout will cause the logging function stop. “StoP” and real time CO2 value will appear in turns.
Please return to computer to download data and re-program again.

NO response at all
The meter might crash after long term usage.
There are two methods to power on again.
One, unplug the power cable for 2 hours and then plug again.
If you could not wait for 2 hours time to discharge, please use any suitable and available pin to do the hardware reset.
The reset hole is on the rear side of meter, next to PM2 Air In filter.
Using pin to press the reset key and see the display re-start again.

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.