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E Instruments AQ Expert Instruction & Operation Manual

Portable multifunctional indoor air quality monitor
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INSTRUCTION & OPERATIONS
MANUAL
AQ EXPERT
PORTABLE MULTIFUNCTIONAL
INDOOR AIR QUALITY MONITOR
E Instruments International LLC
402 Middletown Blvd, Suite 216
Langhorne, PA, USA 19047
Phone (215) 750-1212
Fax (215) 750-1399
Info@E-Inst.com
www.E-Inst.com
Distributed By:
Temperature & Process Instruments, Inc.
1767 Central Park Ave.
Suite 112
Yonkers, NY 10703
Phone: 914-673-0333
Web Site: www.tnp-instruments.com

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  • Page 1 INSTRUCTION & OPERATIONS MANUAL AQ EXPERT PORTABLE MULTIFUNCTIONAL INDOOR AIR QUALITY MONITOR E Instruments International LLC 402 Middletown Blvd, Suite 216 Langhorne, PA, USA 19047 Phone (215) 750-1212 Fax (215) 750-1399 Info@E-Inst.com www.E-Inst.com Distributed By: Temperature & Process Instruments, Inc.

  • Page 2: Table Of Contents

    AQ EXPERT Instruction & Operations Manual Version 1.13 TABLE OF CONTENTS CHAPTER 1 ..........................3 TECHNICAL SPECIFICATIONS & SAFETY GUIDELINES ..........3 CHAPTER 2 ..........................8 INTRODUCTION .......................... 8 CHAPTER 3 ..........................12 BASIC INSTRUMENT OPERATION..................12 CHAPTER 4 ..........................15 POWER REQUIREMENTS ......................

  • Page 3: Chapter 1

    AQ EXPERT Instruction & Operations Manual Version 1.13 CHAPTER 1 TECHNICAL SPECIFICATIONS & SAFETY GUIDELINES AQ EXPERT - AIR QUALITY MONITOR 1. PHYSICAL: Material: White ABS plastic case with internal aluminum shielding Dimensions (monitor): 11.42” X 10.24” X 4.88” Weight: (monitor): 7.6 lbs. / 3.5 kg Shipping Dimensions &...
  • Page 4 AQ EXPERT Instruction & Operations Manual Version 1.13 SENSORS 1. AIR QUALITY SENSORS – ELECTROCHEMICAL SENSOR RANGE RES. ACCURACY +/- 1 ppm of rdg, CARBON MONOXIDE (CO) Std Range 0 - 200 ppm 0.1 ppm +/- 0.2 ppm <300ppm, 10ppm...
  • Page 5 AQ EXPERT Instruction & Operations Manual Version 1.13 3. AIR QUALITY SENSORS – PHOTO IONIZATION DETECTOR (PID) SENSORS SENSOR RANGE RESOLUTION Min Detection ACCURACY 0 – 20 ppm 1 ppb 5 ppb 10% of Rdg. VOCs Std Range (0-46 mg/m (2.3 µg/m...
  • Page 6 See maintenance chapter for filter changing. ➢ It is recommended to keep the AQ Expert horizontal using the included swivel handle as its stand with the LCD display facing the user ➢ Do not use or store the instrument together with any solvents ➢...
  • Page 7 Complies with EN61326-1, Portable Equipment The E Instruments AQ EXPERT Indoor Air Quality Monitor is a battery operated Portable device designed to be used by a qualified engineer/technician to make measurements in buildings and residential facilities. For long-term testing, you may operate the unit connected to the supplied charger by carefully following the product safety instructions in Section A above.

  • Page 8: Chapter 2

    The instrument can have up to six (6) electrochemical gas sensors, one (1) infrared gas sensors and one (1) PID sensor installed. The AQ Expert has three temperature sensors in total. All sensor readings are single range readings with ranges listed in Chapter 1.
  • Page 9 PHOTO F C. REPACKING UNIT IN OPTIONAL VINYL CARRYING CASE 1. With the AQ Expert powered OFF, turn the instrument on its side with the FRONT FACE of the unit to the LEFT. See photo A below. 2. Place the carrying case on a supported surface (desk, floor, etc) with the Front Logo facing the user.
  • Page 10 2. If needed or in doubt of the contaminants in the Ambient Air, you can initiate the ZERO CAL on ALL of the GAS sensors on the AQ Expert. Please refer to CHAPTER 8 of this manual for ZERO & SPAN calibration on the AQ Expert.
  • Page 11 AQ EXPERT Instruction & Operations Manual Version 1.13 LIST OF ABBREVIATIONS PARAMETERS Carbon Dioxide Carbon Monoxide Ambient (room) Air Temperature Percentage of Relative Humidity Dew Point Temperature Wet Bulb Temperature Barometric Pressure Oxygen Ozone VOCs Volatile Organic Compounds Formaldehyde Hydrogen Sulfide...

  • Page 12: Chapter 3

    B. Large fonts (four data parameters displayed simultaneously) Note: The AQ Expert allows the user to ZOOM in and out of the screen by changing from Small to Large Fonts using the MEASURE key. • Four keys will bring up a menu: SETUP, CALIB, STORE, & PRINT.
  • Page 13 Version 1.13 INSTRUMENT OPERATION OVERVIEW 1. Turn the AQ Expert on by pressing the POWER key. The instrument’s internal pump will immediately turn on and the E INSTRUMENTS logo will appear. 2. If applicable, attach the optional probe and sampling line to the monitor.
  • Page 14 AQ EXPERT Instruction & Operations Manual Version 1.13 Press the OK key to execute a printout on the AQ Expert’s optional remote printer. 7. Measured data can be stored in the monitor’s internal memory. Please refer to Chapter 7 for more details about data storage.

  • Page 15: Chapter 4

    POWER REQUIREMENTS The AQ Expert can run off of AC power or the internal Li-Ion rechargeable battery pack. It is recommended to run the AQ Expert off AC power as often as possible for maximum operating time. Power is supplied by a Li-Ion rechargeable battery pack. The battery pack will supply power to the monitor for approximately 6-8 hours of continuous operation.

  • Page 16: Chapter 5

    CHAPTER 5 SENSORS - TECHNICAL The great versatility of the AQ Expert Air Quality monitor is partly due to the large number of sensors available within a single monitor. These sensors are primarily gas sensors and can be grouped into four categories based on their principle of operation: 1.
  • Page 17 AQ EXPERT Instruction & Operations Manual Version 1.13 1. ELECTROCHEMICAL SENSORS All electrochemical sensors are mounted on bayonet style fittings for easy removal. The electrochemical sensors are described below: A. Nitrogen Dioxide sensor (NO This is a three electrode sensor that responds to nitrogen dioxide gas. Nitrogen dioxide is a “sticky”...
  • Page 18 AQ EXPERT Instruction & Operations Manual Version 1.13 E. Hydrogen Sulfide sensor. (H This is a 4-series three-electrode micro sensor with low methanol interference. It measures the concentration of hydrogen sulfide, which is a highly toxic gas. Special precautions must be taken during calibration.
  • Page 19 AQ EXPERT Instruction & Operations Manual Version 1.13 The AQ Expert Air Quality Monitor is equipped with one standard NDIR infrared sensor measurement (standard range: 0 – 5000 ppm). This infrared sensor capable of CO can be substituted for higher CO ranges upon special request.
  • Page 20 AQ EXPERT Instruction & Operations Manual Version 1.13 The PID options have the following specifications: RANGE ACCURACY 0 – 20 ppm VOCs* + 10 % of reading 0 – 200 ppm VOCs* + 10 % of reading *VOC sensor will not measure Formaldehyde. The ionization potential of the sensor is outside of the VOC sensor range.
  • Page 21 AQ EXPERT Instruction & Operations Manual Version 1.13 measurements are displayed on the MEASURE screen only as VEL. Differential Pressure are displayed on the MEASURE screen only as ∆P. Connecting Differential Pressure Hoses: 1. Connect White Connector to either P+ or P- Connection as shown in photo below 2.

  • Page 22: Chapter 6

    AQ EXPERT Instruction & Operations Manual Version 1.13 CHAPTER 6 AQ EXPERT SETUP The SETUP MENU allows the operator to change the instrument’s parameters. 1 ‘14 12:45:00 Temperature Units: F Measure Units: Pressure Units: mbar Pumps: AUTO 1000cc/m Velocity Probe:...
  • Page 23 ) and set this value to obtain automatic & accurate Air Flow measurements in CFM or CMM. NOTE: When using the Velocity Feature on the AQ Expert it is recommended to ZERO the readings BEFORE using the Pitot tube to ensure proper Velocity measurements.
  • Page 24 (1) turn the Velocity Probe option ON (VEL will appear on the unit’s main screen) and (2) set up your Duct Size. Connect the supplied hoses from the Pitot tube to the WHITE (-) and/or (+) PRESSURE connections on the Front of the AQ Expert. 7) PUMP: Pump status is displayed: a) AUTO - Automatic sample mode is selected b) OFF –...

  • Page 25: Chapter 7

    Erase Buffers 00: TAG#00 The AQ Expert has 2000 internal storage tags. Each tag stores one complete set of air quality data. There are two ways to store air quality data to the monitor’s buffer. You can either store data by selecting the option STORE CURRENT DATA after pressing the STORE key, or alternatively you can make use of the monitor’s capability of storing data...
  • Page 26 AQ EXPERT Instruction & Operations Manual Version 1.13 5. SELECT INTERVAL: The time between each store is set here. This can range from 10 seconds to 60 minutes. 6. REVIEW BUFFER: This choice allows you to view previously saved data. Press OK.

  • Page 27: Chapter 8

    Version 1.13 CHAPTER 8 WIRELESS REMOTE PRINTER The AQ Expert uses a wireless Bluetooth remote printer. The printer is powered by a rechargeable battery. An AC charger is supplied with the printer. The printer is optional with the AQ Expert.
  • Page 28 AQ EXPERT Instruction & Operations Manual Version 1.13 LOG INTERVAL: This selects the interval between each log entry. The interval can be set between 1 and 60 seconds. PRINT BUFFER: This option is used to print data stored in the monitor’s memory. Each line corresponds to one storage tag.

  • Page 29: Chapter 9

    Maintenance, for recommended frequencies of each procedure. If the unit is returned to E Instruments for Span Calibration, the unit will be shipped back after Calibration with a new Calibration Certificate valid for one (1) year. If the unit is Span Calibrated in the field, the original calibration certificate is no longer valid.
  • Page 30 If you have a gas cylinder/bottle of ZERO AIR, you can use this for Zeroing ALL of the gas sensors in the AQ Expert. If you do not have this cylinder, please contact E Instruments to purchase our optional Calibration Kit consisting of ZERO AIR &...
  • Page 31 ) in Ambient Air, insert the AQ CAL-ZF filter into the “Sample In” inlet on the front of the AQ Expert and ensure that the opening on the bottom end of the filter is not blocked. Allow the unit to run with the filter connected for at least 30 seconds before continuing, this ensures that any potential contaminants inside the unit are purged.
  • Page 32 Press the OK key to execute a Zero cycle of all the gas sensors while the instrument is running in ambient air. This procedure should last 60 seconds. At the end of the zero period the AQ Expert reads the output of all gas sensors (with the exception of the CO...
  • Page 33 Version 1.13 B. SPAN CALIBRATION E Instruments recommends performing a span calibration of the instrument once every 6 months for maximum accuracy, or at a minimum of once per year. The parameters that require a span calibration are: carbon monoxide, carbon dioxide, nitric oxide, nitrogen dioxide, sulfur dioxide, hydrogen sulfide, oxygen, formaldehyde, and VOCs.
  • Page 34 Connect the regulator of the bottled gas to the AQ Expert “Sample In”. A simple way to feed the span gas to your monitor is by an open T-connection that will ensure that gas is fed at ambient pressure. The regulator valve is used to control the flow of gas to the monitor.
  • Page 35 D. CALIBRATION PROCEDURE The following page illustrates the sequence of key strokes to carry out a span calibration of the AQ Expert. It is assumed that the instrument has been zeroed and there have been no error messages. Page 35 of 63...
  • Page 36 Version 1.13 Electrochemical Gas & PID VOC Sensors 1. Turn the AQ Expert on and press OK to perform a zero. Allow the instrument to warm up for 15 minutes, and repeat the zero. 2. Connect the outlet from the tee fitting of the gas calibration fixture to the connector on the front of the monitor labeled “SAMPLE IN”...
  • Page 37 AQ EXPERT Instruction & Operations Manual Version 1.13 Enter the value generated as the span value using the arrow keys, and press the enter key. Verify that the reading on the instrument matches the reading on the calibration standard. E. VOC SENSOR CLEANING PROCEDURE Depending on the applications and usage, the VOC sensor should be cleaned every 6 months –...
  • Page 38 AQ EXPERT Instruction & Operations Manual Version 1.13 4. Using the tweezers, remove the spacer and set aside. 5. With tweezers, carefully remove the Cell Assembly by prying under the Cell's edge where connector pins are located. 6. With tweezers, grasp the lamp by placing the tips in the housing notch and gently pull it out.
  • Page 39 AQ EXPERT Instruction & Operations Manual Version 1.13 Cleaning the Lamp Grab the lamp by the cylindrical glass body and clean the window by rubbing it against the Polishing Pad. Use a circular motion and try to keep the window surface flat relative to the pad.
  • Page 40 AQ EXPERT Instruction & Operations Manual Version 1.13 2. Using a padded swab, press the lamp down firmly. Be careful not to scratch the surface of the lamp. 3. Using fine-tipped tweezers, install the cell assembly. Align the pins with the corresponding sockets on the sensor and push down on the end with the pins.
  • Page 41 AQ EXPERT Instruction & Operations Manual Version 1.13 5. Place the Filter Media over the Cell Assembly centered on top of the sensor. Make sure the filters are installed in the correct order. The Cotton Filter first, then ½ of the Teflon Filter on top, with the shiny side up, placed over the Cell Assembly.

  • Page 42: Chapter 10

    The AQ Expert Monitor communicates with a PC either using the USB cable or wirelessly using its internal Bluetooth (BT) module. If your computer does not have internal BT capabilities, use the external BT module that is supplied with the AQ Expert The communication protocol is as follows:...
  • Page 43 1. Connect the USB Bluetooth Dongle adapter to your PC, the drivers will begin to install automatically. 2. In order to establish communications between the PC and your E Instruments’ monitor, navigate to the following path: Start –> Control Panel –> Hardware and Sound –> Add a Bluetooth device (listed in Devices &...
  • Page 44 AQ EXPERT Instruction & Operations Manual Version 1.13 5. Enter the pairing code “1234” or “0000” (four zeros) into the empty field & click Next. 6. Paring will complete and the PC to instrument communication drivers will be automatically installed.
  • Page 45 USB Serial Port (USB) o Standard Serial over Bluetooth link (Bluetooth) AQ GAS SOFTWARE You can enhance the performance and versatility of the E INSTRUMENTS AQ EXPERT by using the AQ GAS software program. AQ GAS is available for most Windows operating systems.
  • Page 46 AQ EXPERT Instruction & Operations Manual Version 1.13 5. Set alarms for every air quality parameter including recording the time duration that alarms have been exceeded. 6. Plot bar graphs and time plots of all air quality parameters. The AQ GAS software can be downloaded from the included USB Thumb Drive.
  • Page 47 AQ GAS will look for a monitor on this port. After a moment the E INSTRUMENTS monitor icon should appear. You are now connected to your monitor. Click on the E INSTRUMENTS icon. A menu will appear. Choose “Monitor” from the menu. (Follow the AQ GAS manual for further instructions). Page 47 of 63...

  • Page 48: Chapter 11

    CHAPTER 11 MAINTENANCE The AQ Expert Indoor Air Quality Monitor is a sophisticated analytical instrument designed to perform accurate air quality measurements. However, because the monitor is a portable, field/lab used instrument that can be used in many environments, care must be taken to prevent physical and environmental abuse to help maintain trouble- free operation.
  • Page 49 If you receive an error message for one of the sensors during instrument operation you may have to replace the sensor. Please contact E Instruments for replacement sensors. The user can send the unit back to the factory for sensor installation and re- calibration of the instrument or the sensors can be replaced in the field.
  • Page 50 AQ EXPERT Instruction & Operations Manual Version 1.13 Span calibrate the sensor as explained in Chapter 8. If you are installing a pre- calibrated sensor, use the following procedure: 1) While holding the SETUP key, press the MEASURE key three times. The display will show the sensor factors.

  • Page 51: Chapter 12

    CHAPTER 12 AQ EXPERT OPTIONS The E INSTRUMENTS’ AQ EXPERT is an extremely versatile Indoor Air Quality (IAQ) measurement system that meets practically all Air Quality measurement requirements. It has been designed as a modular system, permitting the installation, in the field, of most of the various available options.
  • Page 52 This standard probe (Part # AACSF22) is suitable for temperatures up to 800ºC/1470ºF. The end of the probe’s sampling line connects to the SAMPLE IN quick disconnect connector of the AQ Expert and the thermocouple connector connects to either of the yellow TEMPERATURE 1 or 2 inputs on the AQ Expert.
  • Page 53 The AQ Expert uses a wireless Bluetooth remote printer. The printer is powered by a rechargeable battery. An AC charger is supplied with the printer. The printer is optional with the AQ Expert. See Chapter 8 for more information OPTIONAL CALIBRATION KIT (ZERO AIR)

  • Page 54: Chapter 13

    AQ EXPERT Instruction & Operations Manual Version 1.13 CHAPTER 13 BASIC TROUBLESHOOTING ZERO ERRORS Channel Possible Causes Resolution (Electrochemical Sensor has been recently Purge for 10 minutes with fresh air, sensors) exposed to gas and has not monitor sensor voltage, and re-zero.
  • Page 55 AQ EXPERT Instruction & Operations Manual Version 1.13 TROUBLESHOOTING Symptoms Possible Causes Resolution Battery is discharged. Plug in the charger. Monitor should turn on. Monitor will not turn on. (Screen is off) Battery is not charging. Check the charger and jack.
  • Page 56 AQ EXPERT Instruction & Operations Manual Version 1.13 REPLACEMENT PARTS PART NUMBER DESCRIPTION AARC05-T Printer Paper Roll (Thermal) EE650072 Line Filter EE650077 Condensation Disk Filter AAA32-240 Sensor (0 - 25%) AQ CO-200 CO Sensor (0-200 ppm) AQ CO-2000 CO Sensor (0-2000 ppm)

  • Page 57: Chapter 14

    AQ EXPERT Instruction & Operations Manual Version 1.13 CHAPTER 14 VOCs Ionization Potentials and Response Factors Appendix I: Ionization Potentials Chemical Name IP (eV) Chemical 3-Butene nitrile 10.39 Benzaldehyde 9.53 Name IP (eV) Benzene 9.25 Benzenethiol 8.33 2-Amino pyridine 8 Benzonitrile 9.71...
  • Page 58 AQ EXPERT Instruction & Operations Manual Version 1.13 Camphor 8.76 Dibromochloromethane 10.59 Carbon dioxide 13.79 Dibromodifluoromethane 11.07 Carbon disulfide 10.07 Dibromomethane 10.49 Carbon monoxide 14.01 Dibutylamine 7.69 Carbon tetrachloride 11.47 Dichlorodifluoromethane (Freon 12) 12.31 Chlorine 11.48 Dichlorofluoromethane 12.39 Chlorine dioxide 10.36 Dichloromethane 11.35...
  • Page 59 AQ EXPERT Instruction & Operations Manual Version 1.13 Ethyl formate 10.61 Hydrogen sulfide 10.46 Ethyl iodide 9.33 Hydrogen telluride 9.14 Ethyl isothiocyanate 9.14 Hydroquinone 7.95 Ethyl mercaptan 9.29 Ethyl methyl sulfide 8.55 Ethyl nitrate 11.22 1-Iodo-2-methylpropane 9.18 Ethyl propionate 10 1-Iodobutane 9.21...
  • Page 60 AQ EXPERT Instruction & Operations Manual Version 1.13 Methane 12.98 Ozone 12.08 Methanethiol (methyl mercaptan) 9.44 Methyl acetate 10.27 Methyl acetylene 10.37 1-Pentene 9.5 Methyl acrylate 9.9 1-Propanethiol 9.2 Methyl alcohol 10.85 2,4-Pentanedione 8.87 Methyl amine 8.97 2-Pentanone 9.38 Methyl bromide 10.54 2-Picoline 9.02...
  • Page 61 AQ EXPERT Instruction & Operations Manual Version 1.13 Trichloromethane 11.42 Triethylamine 7.5 o-Terphenyls 7.78 Trifluoromonobromo-methane 11.4 1,1,2,2-Tetrachloro-1,2-difluoroethane (Freon Trimethyl amine 7.82 112) 11.3 Tripropyl amine 7.23 1,1,1-Trichloroethane 11 1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113) 11.78 o-Vinyl toluene 8.2 2,2,4-Trimethyl pentane 9.86 Valeraldehyde 9.82 o-Toluidine 7.44...
  • Page 62 AQ EXPERT Instruction & Operations Manual Version 1.13 hydrazine 2.6 nitric oxide 7.2 hydrogen sulfide 3.2 n-nonane 1.6 isoamyl acetate 1.8 nitrogen dioxide (11.7 lamp) 10 isobutanol 4.7 n-pentane 9.7 isobutyl acetate 2.6 n-propyl acetate 3.1 isobutylene 1 octane 2.2 isooctane 1.3...
  • Page 63 AQ EXPERT Instruction & Operations Manual Version 1.13 E Instruments International LLC 402 Middletown Blvd, Suite 216 Langhorne, PA, USA 19047 Phone (215) 750-1212 Fax (215) 750-1399 Info@E-Inst.com www.E-Inst.com Page 63 of 63...

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