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ppm Symptoms and Applicable Standards

0-1

Normal background levels

Maximum indoor air quality level:

Maximum allowable concentration

per ASHRAE Residential Standards

62-1989 for living area.

Maximum limit 8 hours of continuous

exposure per California OSHA

workplace standards

Maximum 8 hours average exposure

level per US OSHA workplace

standards

Maximum concentration for

continuous exposure for any 8 hours

average level per OSHA standards

100

Evacuate employees from continuous

exposure in any 8 hour average level

per OSHA standards.

200

Mild headache, fatigue, nausea, and

dizziness within 2-3 hours

400

Frontal headache, life threatening

after 3 hours. Maximum

concentration in flue gas per the US

EPA and AGA standards

800

Dizziness, nausea, convulsions, death

within 2-3 hours

1600

Nausea within 20 minutes, death

within 2-3 hours.

CO LEVELS

Содержание AQM4

Страница 1: ...HOLD CO2 rh TADPWBT O F O C REC Recall AM PM CO CAL MIN MAX AVG INSTRUCTION MANUAL 1 800 547 5740 Fax 503 643 6322 Email info ueitest com Indoor Air Quality Meter AQM4 ...

Страница 2: ...so recommended for regulating standards of industrial air quality in some countries The portable AQM4 uses NDIR non dispersive infrared technology for CO measurement to ensure reliability and long term stability It is useful in verifying HVAC systems performance and air ventilation control CO is a colorless odorless and tasteless gas which is slightly lighter than air It is highly toxic to humans ...

Страница 3: ...d Min functions included TWA and STEL for CO only Mini USB to PC download function for analysis 99 points manual recording 8000 points auto recording Review 99 points manual record from meter Hold function freezes current readings Housing designed to help air ventilation for quick and accurate response Easy to manually calibrate CO to fresh air 380 420ppm MATERIAL SUPPLIED This package contains Me...

Страница 4: ... polarity and solid contact When an adaptor is used it will cut off the power supply from the batteries The adaptor can not be used as a battery charger When battery voltage gets low will appear on the LCD Fig 1 The CO sensor accuracy is compromised under low batteries replace with fresh batteries or connect to an adaptor POWER SUPPLY LCD DISPLAY PRIMARY LCD SECONDARY LCD ...

Страница 5: ...d and calculated values Secondary LCD Real time clock CO Carbon dioxide reading CO Carbon monoxide reading HOLD Readings are frozen MIN MAX Minimum maximum readings STEL Short term exposure limit 15 minutes weighted average TWA Time weighted average 8 hours Low battery indicator DP Dew point temperature TA Air temperature WBT Wet bulb temperature RH Percentage of relative humidity C F Celsius Fahr...

Страница 6: ...e meter emits a short beep and begins 30 second warm up countdown Fig 2 then enters normal mode with current CO and real time displays Fig 3 NOTE THE REAL TIME DISPLAYS DATE YY MM DD AND TIME IN SEQUENCE TAKING MEASUREMENT The meter starts measurements when powered on and updates readings every second In the condition of an operating environment change ex high to low temp it takes 30 seconds for t...

Страница 7: ...display Fig 5 In the AQM4 dew point temperature and wet bulb temperature are also available by repeated pressing of Fig 6 The lower display shows the real time clock HUMIDITY Press to switch to humidity display Fig 7 The lower display shows the real time clock CO CARBON MONOXIDE Press to switch the mode to CO CO concentration will display in ppm on primary display Fig 8 The lower display shows the...

Страница 8: ...eck the minimum and maximum STEL and TWA values calculated since power on Under normal mode press to see the minimum maximum STEL and TWA and real time sequence Each press of displays MIN MAX STEL TWA in sequence and returns to current value Fig 10 13 STEL and TWA values are calculated for CO only If the meter is turned on for less than 15 minutes the STEL value will be the weighted average of rea...

Страница 9: ...g 14 The displayed sequence in this mode is MIN MAX STEL TWA Press key to return to live readings HOLD Manually Record Record and Recall functions are all available when meter is in MIN MAX AVG mode To clear the MIN MAX AVG since power on restart the meter or press for more than 2 seconds to clear previous data and restart 8 NOTE TWA STEL ARE FOR CO2 ONLY MIN MAX ARE FOR ALL PARAMETERS ...

Страница 10: ...ry contains all parameters CO CO TA rh not limited to the selected parameter on the main display If the reading changes quickly press to freeze the reading before manually recording the data 99 MEMORIES RECALL In normal or hold mode press key for more than 2 seconds until the icon flashes Press or to scroll through the memory locations The memory serial number displays on the main LCD first and th...

Страница 11: ...over the set value and stops only when the readings fall below the set value It beeps again when value goes over the limit The meter can automatically record readings of CO CO TEMPERATURE RH for extended environment monitoring The memory capacity is 8 000 points Users can set up sampling rate from 1 second to 4 hours 59 minutes and 59 seconds See pg 11 P40 After sampling rate is selected press for...

Страница 12: ...ng another session The meter turns off automatically after 20 minutes of inactivity To override the function hold down and for 2 seconds to turn on the meter until n appears Fig 20 NOTE AUTO SLEEP FUNCTION WILL BE DISABLED DURING CALIBRATION MODE When the meter is off hold down for more than 1 second to enter setup mode Fig 21 To exit setup press to return to normal mode AUTO POWER OFF SETUP 11 ...

Страница 13: ...current setting will be blinking on the LCD Fig 22 Press or to choose NO or YES and press to confirm OR Press to escape and return to P10 P20 CO ALARM When P20 and ALAR Fig 23 are displayed on LCD press to enter into P21 for setting CO alarm threshold The current set value will be blinking on the LCD Fig 24 Press to increase or to decrease the value The selectable alarm limits are 25 200ppm in 5 p...

Страница 14: ... you to set sampling rate of data logging Fig 27 The range is from 1 second to 4 hours 59 minutes and 59 seconds Press to display current setting and enter edit mode The display is in the format HH MM SS The hour digits will be flashing To change intervals between logged readings press to increase and to decrease Press again to confirm and enter minute setting Press to confirm and enter seconds se...

Страница 15: ...OBTAIN kPa VALUE P60 REAL TIME CLOCK Enter P60 for setting the real time clock of this meter Press to enter into P61 to set the time format as 12 hour or 24 hour The current set will flash on LCD Press or to change the format and press to confirm and continue to set the date and time Fig 32 OR Press to escape and return to P60 NOTE DATE FORMAT IS YY MM DD The date will show on the lower display wi...

Страница 16: ...tion is suggested to be done in sunny outdoor air that is well ventilated To begin enter calibration mode Press or to select parameters for calibration and press enter The meter is calibrated at standard 400ppm CO concentration at the factory It is suggested to manually calibrate regularly to maintain good accuracy NOTE WHEN THE ACCURACY BECOMES A CONCERN RETURN TO UEi FOR STANDARD CALIBRATION CAU...

Страница 17: ...alts Contact UEi for calibration salt or for service 33 Calibration Plug the sensor probe into 33 salt bottle Hold down to enter 33 calibration CAL and calibrating value 32 8 if at 77 F are blinking on the LCD 75 Calibration Plug sensor probe into 75 salt bottle and enter calibration mode In calibration mode press to select 75 calibration Fig 35 press to start CAL calibrating value 75 3 if at 77 F...

Страница 18: ...more than 3 seconds Check that the adaptor is connected and on Check that battery level is sufficient and properly installed Readings Not Changing Check whether data hold function is activated HOLD icon is at the left top Slow Response Check the air flow channels on the rear Verify no blockage exists Error Messages EO1 E33 CO sensor is out of order Try new battery first E02 The value is under rang...

Страница 19: ...e connected to a PC to download recorded data Plug the USB cable into the socket at the right side of the meter and the other port to your PC Next install the software on your PC following these procedures 1 Insert the CD ROM and run installation Select a preferred directory and click Next step by step to finish 2 After the software installation is completed it will run USB driver installation nex...

Страница 20: ... port information at the bottom of the main screen as well as the COM Port setting column LOGGER SETTINGS To set up logging plan click Setting icon and select Logger The setting page is opened Users can set up the logger identifier number Click OK for setting and exit the screen to confirm the settings 19 ...

Страница 21: ...auto recorded data in the logger will be transmitted The raw data with time stamp will display at the lower part of the screen and the graph in the middle In the Graph display the Y axis indicates Temperature RH DP WBT CO2 and CO levels in different line colors The X axis can be switched to show Time or Recorded Number Stamp 20 ...

Страница 22: ... Zoom X Axis Hold down Ctrl key and drag click the left button of the mouse to select an area on the Graph and the X axis of the selected area will be enlarged Zoom Y Axis Hold down Ctrl key and drag click the left button of the mouse to select an area on the Graph and the Y axis of the selected area will be enlarged Three icons on the right top side of the main screen Redraw Button After any revi...

Страница 23: ...aved files just click Load and select a desired file and it will be loaded in the main screen with the file details at the left top side Cursor Button Switch cursor ON and it shows the raw data with the cursor Click anywhere on the graph and the digital data will be displayed Switch OFF to disable the function ...

Страница 24: ...or 501ppm and above Temperature 0 6 C 0 9 F Relative Humidity 3 at 25 C 10 90 5 at 25 C other range Response Time CO 30 seconds 90 step change CO 60 seconds 90 step change Tair 2 mins 90 step change Relative Humidity 10 mins 90 step change LCD Meter Size mm 26 H x 44 L 205 L x 70 W x 56 H Operating Condition 20 to 50 C CO Sensor 0 to 500 C CO Sensor 20 to 60 C Storage Condition 20 60 C 10 90 RH Po...

Страница 25: ...xceed 5000ppm Mak Germany Japan Australia UK 5000ppm Eight hours weighted average in occupational exposure limit is 5000ppm See Ashrae 62 1 2004 Table B 1 NON ENFORCED REFERENCE LEVELS NIOSH Recommends 250 350ppm normal outdoor ambient concentrations 600ppm minimal air quality complaints 600 1000ppm less clearly interpreted 1000ppm indicates inadequate ventilation complaints such as headaches fati...

Страница 26: ... US OSHA workplace standards 50 Maximum concentration for continuous exposure for any 8 hours average level per OSHA standards 100 Evacuate employees from continuous exposure in any 8 hour average level per OSHA standards 200 Mild headache fatigue nausea and dizziness within 2 3 hours 400 Frontal headache life threatening after 3 hours Maximum concentration in flue gas per the US EPA and AGA stand...

Страница 27: ...E The product complies with EMC directive 2004 108 EC Technical standard Emission EN 61326 1 2006 Class B EN 55011 2009 A1 2010 Group 1 Class B Immunity EN 61326 1 2006 EN 61000 4 2 2009 EN 61000 4 3 2006 A2 2010 26 ...

Страница 28: ...all not be liable for loss of use of the instrument or other incidental or consequential damages expenses or economic loss or for any claim or claims for such damage expenses or economic loss A purchase receipt or other proof of original purchase date will be required before warranty repairs will be rendered Instruments out of warranty will be repaired when repairable for a service charge Return t...

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