UEi AQM4 Instruction Manual
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UEi AQM4 Instruction Manual

Indoor air quality meter
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CO
HOLD
MIN
MAX
AVG
CAL
AM
REC
PM
Re call
1-800-547-5740 • Fax: (503) 643-6322
Email: info@ueitest.com
INSTRUCTION MANUAL
TADPWBT
CO
2
AQM4
C
O
F
O
%rh

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Summary of Contents for UEi AQM4

  • Page 1 INSTRUCTION MANUAL AQM4 TADPWBT HOLD Re call 1-800-547-5740 • Fax: (503) 643-6322 Email: info@ueitest.com...
  • Page 2 INTRODUCTION Thank you for purchasing the UEi AQM4 IAQ meter. The meter measures CO ² levels, CO levels, air temperature, dew point, wet bulb temperature, and humidity. The AQM4 is an ideal instrument for indoor air quality (IAQ) diagnosis. Poor indoor air quality causes tiredness, inability to concentrate, and even illness (ex.

  • Page 3: Material Supplied

    FEATURES • Large LCD display with blue backlight for use in dark areas • One touch to display CO ² / dew point / temperature / wet bulb temperature / air temperature / humidity / CO in sequence • Designed with NDIR waveguide technology CO ²...

  • Page 4: Power Supply

    POWER SUPPLY The meter is powered by either 4 AA batteries or a DC adaptor (9V/1A output.) Install the batteries into the battery compartment on the rear of the instrument. Verify correct polarity and solid contact. When an adaptor is used, it will cut off the power supply from the batteries.
  • Page 5 SYMBOLS Primary LCD Measured and calculated values Secondary LCD Real time clock CO ² Carbon dioxide reading Carbon monoxide reading HOLD Readings are frozen MIN/MAX Minimum/maximum readings STEL Short-term exposure limit (15 minutes weighted average)* Time weighted average (8 hours)* Low battery indicator Dew point temperature Air temperature...

  • Page 6: Operation

    KEYPAD CONT. Freezes the current readings. Selects unit or increases value in setup. Cancels data hold function. Press to manually record the reading. Selects unit or decreases value in setup. Displays MIN, MAX, TWA, STEL function. Saves and finishes settings while in sleep mode.
  • Page 7 AIR, (DP, WBT, TA ) TEMPERATURES Press to switch to temperature 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.

  • Page 8: Min, Max, Stel, Twa

    DATA HOLD In normal display mode, press to freeze the readings, the "HOLD" icon is displayed on the left top of the LCD (Fig. 9). All current readings are kept unchanged. Press to cycle through all held readings. While in "HOLD" mode, STEL and TWA will continue updating every 5 minutes.
  • Page 9 In the MAX/MIN/STEL/TWA modes, it shows the corresponding readings on the main display and the real time clock on the lower display. In this mode, press to switch the displayed parameters (Fig 14). The displayed sequence in this mode is MIN MAX STEL TWA.

  • Page 10: Manually Recording

    3 seconds. The main display shows the memory serial number. The AQM4 has 99 locations. (Fig. 15) Each memory contains all parameters (CO ² , CO, TA..%rh), not limited to the selected parameter on the main display.
  • Page 11 Press key to switch the display parameter. (Fig. 18) The time displayed in memory recall mode is the recording time of this memory. To escape the memory recall mode, press key to leave and return to normal display. ALARM The meter features an audible alarm to give warnings when CO concentration exceeds a pre-set limit.

  • Page 12: Auto Power Off

    To terminate data logging, press 2 seconds, until icon stops flashing. NOTE: The AQM4 will only record one session. If is activated all previous data is erased. Download logged data prior to starting another session. AUTO POWER OFF The meter turns off automatically after 20 minutes of inactivity.
  • Page 13 Press to scroll through set-up options from the following: P10 - 99 Memory Clear P20 - CO Alarm P30 - Temperature Units P40 - Logging Sample Rate P50 - Pressure Compensation P60 - Real Time Clock P10: 99 MEMORIES CLEAR P10 and "CLR"...
  • Page 14 P30 TEMPERATURE UNIT When P30 and "UNIT" (Fig 25) are displayed on the LCD, press to go into P31 to choose the temperature unit. The set value will display on LCD (Fig 26) Press to choose C° or F° and press to confirm.

  • Page 15: P50 Pressure Compensation

    P50 PRESSURE COMPENSATION When P50 and "PRES" (Fig. 29) are displayed on the LCD, press to set pressure compensation value for CO ² measurement. The current set will flash on LCD. (Fig. 30) The barometric pressure unit is kPa. Press to increase or to decrease barometric pressure.

  • Page 16: Calibration Mode

    CALIBRATION MODE The AQM4 allows you to calibrate CO ² and RH, for CO calibration please send unit to UEi. To enter calibration mode, place unit at suitable calibration site specified in the following sections. Press , then also simultaneously for 3 seconds to turn on the meter and enter calibration mode (Fig.
  • Page 17 75°F (25°C) and stable humidity. To cancel calibration, turn off the meter. CAUTION: Do not calibrate the humidity without default calibration salts. Contact UEi for calibration salt or for service 33% Calibration Plug the sensor probe into 33% salt bottle.

  • Page 18: Troubleshooting

    CO CALIBRATION When the accuracy becomes a concern, return to UEi for standard calibration. It is necessary to have standard CO gas for calibration. CAUTION: Do not calibrate the meter in the air with unknown CO concentration. It could be calibrated as 400ppm by default which leads to inaccurate measurements.
  • Page 19 E33: Humidity sensor or circuit damaged. PC CONNECTION The UEi AQM4 can be 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.

  • Page 20: Auto Connect

    AUTO CONNECT Start the software and it will detect the logger connection automatically, indicating the COM 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".

  • Page 21: Data Transmission

    DATA TRANSMISSION To transmit auto recorded data from the meter, click "Download" icon on the left top side of the main screen. All 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.

  • Page 22: View Menu

    VIEW MENU The following functions help to view the GRAPH data in more detailed way. In the view menu, there are 4 tools to enlarge the Graph data for detailed data review. Zoom in: Hold down "Ctrl" key on the PC keyboard and left click any target point on the graph to zoom in.

  • Page 23: Data Processing

    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. DATA PROCESSING The downloaded data can be Saved or Printed via "File"...

  • Page 24: Specification

    SPECIFICATION Measuring Range CO ² 0 ~ 9999ppm 0 ~ 1000ppm Temperature -20 ~ 60˚C -5 ~ 140˚F Relative Humidity 0.1% ~ 99.9% Dew Point Temp. -20.0 ~ 59.9˚C Wet Bulb Temp -5.0 ~ 59.9˚C Resolution 1ppm, 0.1˚C/˚F, 0.1%RH Accuracy CO ²...
  • Page 25 CO² LEVELS AND GUIDELINES REGULATORY EXPOSURE LIMIT ASHRAE Standard 62.1-2004: CO ² concentration in occupied building should not exceed 1000ppm. Building Bulletin 101 (BB101): 1500ppm UK standards for schools state that CO ² averaged over the whole day (i.e. 9am to 3:30pm) should not exceed 1500ppm.
  • Page 26 CO LEVELS ppm Symptoms and Applicable Standards 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...
  • Page 27 CE CERTIFICATE 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...

  • Page 28: Limited Warranty

    LIMITED WARRANTY The AQM4 is warranted to be free from defects in materials and workmanship for a period of two years from the date of purchase. If within the warranty period your instrument should become inoperative from such defects, the unit will be repaired or replaced at UEi’s option.

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