Related Manuals for Extech Instruments AN340
Summary of Contents for Extech Instruments AN340
- Page 1 USER GUIDE Mini‐Vane CMM/CFM Anemometer/Psychrometer + Datalogger Model AN340 DataLoggerStore 1.877.766.5412 www. .com Shop for Data Logging products online at:...
- Page 2 This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Please visit our website (www.extech.com) to check for the latest version of this User Guide, Product Updates, and Customer Support. CAUTIONS Improper use of this meter can cause damage to the meter and personal injury. Read and understand this user manual before operating the meter. Inspect the condition of the probe and the meter for any damage before operating the meter. Repair or replace damage before use. If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. This device should not be made available to children. It contains hazardous objects as well as small parts that can be accidentally swallowed. The meter’s batteries and packing materials can also be dangerous to children. In the event that the meter is to be unused for an extended period of time, remove the batteries to protect against battery leakage. Expired or damaged batteries can be hazardous if allowed to come in contact with skin. Use suitable hand protection in such cases. Do not short circuit batteries or put batteries in fire. AN340-EU-EN V1.3 4/13 DataLoggerStore 1.877.766.5412 www. .com Shop for Data Logging products online at:...
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Page 3: Keypad Description
MEM and RECALL button START and ESC button 10. LW‐D‐A and down arrow button 11. Mini‐Vane impeller 12. Temperature and humidity sensors 13. Telescoping sensor arm Note: Battery compartment (not shown) is located on rear of instrument Meter Top Description Sensor connection jack AC power adaptor jack USB PC interface jack Keypad Description POWER ON‐OFF and SET button Press momentarily to power meter ON or OFF. Press and hold for two (2) seconds to enter the SETUP mode. AN340-EU-EN V1.3 4/13 DataLoggerStore 1.877.766.5412 www. .com Shop for Data Logging products online at:... - Page 4 START, ESC button In the normal operating mode, press and hold for two (2) seconds to start or stop the automatic datalogger. Also, press to exit (escape) AVG/MIN/MAX, RECALL, and SETUP modes. HOLD, UP ARROW button In the normal mode, press to freeze/un‐freeze the displayed reading. It is also used to move UP in a menu list. LW‐D‐A (LENGTH/WIDTH‐DIAMETER‐AREA) button In the Air Volume mode, press this button to begin programming the AREA value for the duct under test. This button is also used to move DOWN a menu list. MEM‐RECALL button In the normal mode of operation, press this button to manually record a reading into the meter’s 99 location memory. Press and hold for two (2) seconds to recall and review the manually recorded data one reading at a time. and With the meter OFF, press and hold these two buttons to disable the sleep mode. Sleep mode switches the meter off automatically after a twenty (20) minute period of inactivity. and With the meter OFF, press and hold these two buttons until PC appears on the LCD. The meter is now ready to communicate with a PC. For instructions on the use of the PC interface please refer to the HELP utility provided on the supplied CD‐ROM. AN340-EU-EN V1.3 4/13 DataLoggerStore 1.877.766.5412 www. .com Shop for Data Logging products online at:...
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Page 5: Display Icon Description
HOLD Display HOLD feature %rh Relative Humidity unit of measure m/s Meters per second ft/m Feet per minute CFM Cubic feet per minute CMM Cubic meters per minute REC Record RECALL Recall AM/PM Morning/Evening time B Low Battery 8888.8 Main (larger and upper) display digits 88‐88‐88 Timer (lower) display digits AN340-EU-EN V1.3 4/13 DataLoggerStore 1.877.766.5412 www. .com Shop for Data Logging products online at:... -
Page 6: Operation
6. With the meter switched ON, use the MODE button to advance from one measurement type to the next (air velocity, air flow or volume, air temperature, relative humidity, wet bulb temperature, and dew point temperature). Note that for air volume measurements the user must first enter the area value for the duct under test before accurate readings can be made. Refer to the AREA section of this guide for programming details and to the Appendix for additional information on area measurements, calculations, and unit conversions. 7. When measuring, air must enter the vane on the side of the sensor with the printed words AIR IN. The sensor wand can be extended using its telescoping capability up to 1m (39”). 8. The measurement is indicated on the upper display digits along with the currently selected unit of measure. To change the unit of measure, refer to the SETUP mode section. The lower display line shows the real time clock, alternating time and date information. 9. The air temperature and relative humidity sensors are located in the slotted opening on the sensor wand below the impeller. 10. Air velocity readings are indicated in meters per second (m/s) or feet per minute (fpm). Temperature readings (air, dew point, or wet bulb) are indicated in °C/°F. Relative Humidity is indicated in %. Air flow (volume) is indicated in CFM (cubic feet per minute) or CMM (cubic meters per minute). 11. To measure relative humidity using an offset reference value, please access the Setup mode and input the offset value as described in the Setup mode section. The LCD will display the measured value minus the offset value once the offset is programmed in the Setup mode. AN340-EU-EN V1.3 4/13 DataLoggerStore 1.877.766.5412 www. .com Shop for Data Logging products online at:... -
Page 7: Lcd Backlight
HH:MM:SS (hours, minutes, and seconds) 1. Press the AVG/MAX/MIN button momentarily. The elapsed timer will start and the MIN value will display. The ‘MIN’ icon will switch ON indicating that the reading shown is the minimum reading encountered since the mode was accessed. 2. Press AVG/MAX/MIN again to display the maximum reading encountered. The ‘MAX’ icon will appear on the LCD and the reading displayed indicates the highest reading encountered. 3. Press AVG/MAX/MIN again to display the average of all reading encountered. The ‘AVG’ icon will appear on the LCD. 4. Press AVG/MAX/MIN again and the display will return to displaying real time readings. The meter will continue monitoring AVG‐MAX‐MIN values for the current session and will continue to do so until the session is stopped by the user. 5. To stop the recording session, press the ESC button momentarily. The elapsed time indication will switch off and the lower display digits will return to displaying the current date and time (the ‘AVG, ‘MAX’, and ‘MIN’ icons will switch OFF). 6. Note that during an AVG‐MAX‐MIN recording session, the MODE button can be used, as it normally is, to step through the displayed measurement types. 7. Also note that the HOLD and MANUAL RECORD modes of operation are disabled during an AVG‐MAX‐MIN session. AN340-EU-EN V1.3 4/13 DataLoggerStore 1.877.766.5412 www. .com Shop for Data Logging products online at:... - Page 8 3. While logging, the upper display digits indicate the real time readings; the lower display shows the real time clock. 4. To stop the datalogger press and hold the START‐ESC button again for two (2) seconds. 5. Important Note: If the datalogger is started again before the data from the previous session is downloaded to a PC, all data from the previous session will be overwritten (erased). 6. During the datalogging session, the MODE button can be used, as it normally is, to switch the measurement parameter (velocity, volume, dew point, etc.). 7. AVG‐MAX‐MIN, manual logging, and HOLD modes are disabled while the meter is datalogging. 8. Install and run the supplied datalogging software program to transfer the logged readings to the PC. The meter connects to the PC via a USB cable (meter’s USB jack is located at the top of the meter as shown in the Description section). Read the software help guide available in the software program for full software operating instructions. 9. With the meter OFF, press and hold the SET and LWDA buttons until PC appears on the LCD. The meter is now ready to communicate with a PC. For instructions on the use of the PC interface please refer to the HELP utility provided on the supplied CD‐ROM. AN340-EU-EN V1.3 4/13 DataLoggerStore 1.877.766.5412 www. .com Shop for Data Logging products online at:...
- Page 9 LENGTH x WIDTH (Area) Mode When the ‘L’ is shown at the top of the LCD, the meter is ready to accept a rectangular duct’s Length measurement in centimeters or inches. Use the button ONLY to change the value of the flashing digit (pressing the down arrow will cause the screen to change from Length to Diameter). Use the ENTER button to move from digit to digit. When finished entering the length, and with the right‐most digit flashing, press the ENTER button to move to the Width (W) screen. When the ‘W’ is shown at the top of the LCD, the meter is ready to accept the Width measurement in centimeters or inches. Use the button ONLY to change the value of the flashing digit (pressing the down arrow will cause the screen to change to Diameter mode). Use the ENTER button to move from digit to digit. When finished entering the width, and with the right‐most digit flashing, press the ENTER button to return to the main operating mode. The meter automatically calculates the area of the duct and, when volume measurements are taken, the LCD will show accurate air volume (flow) in CMM/CFM units. AN340-EU-EN V1.3 4/13 DataLoggerStore 1.877.766.5412 www. .com Shop for Data Logging products online at:...
- Page 10 When finished entering the Diameter, and with the right‐most digit flashing, press the ENTER button to return to the main operating mode. The meter automatically calculates the area of the duct and, when volume measurements are taken, the LCD will show accurate air volume (flow) in CMM/CFM units. Entering the AREA Value Manually When the ‘A’ is shown at the top of the LCD, the meter is ready to accept an Area value directly in square centimeters or square inches (cm or inch ). Note: Use the LW‐D‐A button from the Air Volume measurement mode to access the ‘A’ screen if necessary. Use the button ONLY to change the value of the flashing digit (pressing the down arrow will cause the screen to change from Area to Length). Use the ENTER button to move from digit to digit. When finished entering the Diameter, and with the right‐most digit flashing, press the ENTER button to return to the main operating mode. Now when volume measurements are taken, the LCD will show air volume (flow) in CMM/CFM units. AN340-EU-EN V1.3 4/13 DataLoggerStore 1.877.766.5412 www. .com Shop for Data Logging products online at:...
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Page 11: Entering Setup Mode
The MINUTES digits should now be flashing. Use the arrow buttons to select the desired setting. Press the ENTER button to confirm the entry. The SECONDS digits should now be flashing. Use the arrow buttons to select the desired setting. Press the ENTER button to confirm the entry. The display should now return to the main P10 RATE display. Use the arrow keys to step to another parameter or press ESC to exit the SETUP mode. P20: CLR (99‐Reading Memory Clear) Once in the setup mode, at the P20 CLR display, momentarily press the ENTER button to access the P20 menu. The word NO or YES will be flashing. Use the arrow keys to select NO (do not erase data) or YES (erase data). When the desired command is shown press the ENTER button to execute the command. If YES was selected, the entire 99‐Reading memory bank will be erased. If NO was selected, the data will not be erased and will remain in memory. The display should return to the main P20 CLR display once the command is executed. Use the arrow keys to step to another parameter or press ESC to exit the SETUP mode. P30: UNIT Once in the setup mode, at the P30 UNIT display, momentarily press the ENTER button to access the P30 menu. Use the arrow buttons to select the imperial or metric unit set. The available units are: air velocity (m/s, fpm), temperature (C, F), air volume (CMM, CFM), and area size (cm², inch²). Press ENTER to confirm the selection. Use the arrow keys to step to another parameter or press ESC to exit the SETUP mode. AN340-EU-EN V1.3 4/13 DataLoggerStore 1.877.766.5412 www. .com Shop for Data Logging products online at:... - Page 12 The upper display should now show RTC again and the lower display will show the date in YY‐MM‐DD format. The ‘YY’ digits should be flashing. Use the arrow buttons to select the current year and then press ENTER to confirm. The ‘MM’ digits should now be flashing. Use the arrow buttons to select the current month and then press ENTER to confirm. The ‘DD’ digits should now be flashing. Use the arrow buttons to select the current day and then press ENTER to confirm. The upper display should now show RTC again and the lower display the time in HH‐MM‐ SS format. The ‘HH’ digits should now be flashing. Use the arrow buttons to select the current hour and then press ENTER to confirm. The ‘MM’ digits should be flashing. Use the arrow buttons to select the current minute and then press ENTER to confirm. The ‘SS’ digits should now be flashing. Use the arrow buttons to select the seconds and then press ENTER to confirm. The display should now return to the main ‘P40 RTC’ display. 10. Use the arrow keys to step to another parameter or press ESC to exit the SETUP mode. P50: OFFSET (relative humidity display offset) Once in the setup mode, at the P50 UNIT display, momentarily press the ENTER button to access the P50 menu. Use the arrow buttons to select the desired relative humidity offset. Press ENTER to confirm the selection. Use the arrow keys to step to another setup parameter or press ESC to return to the normal operating mode. AN340-EU-EN V1.3 4/13 DataLoggerStore 1.877.766.5412 www. .com Shop for Data Logging products online at:...
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Page 13: Battery Replacement
Battery Replacement When the low battery icon (B) appears on the LCD, the six (6) AAA batteries must be replaced. The battery cover is located on the back of the meter. 1. Open the rear battery compartment by first removing the five (5) lower screws. 2. The battery compartment cover should be completely removed before proceeding. 3. Replace the six (6) 1.5V ‘AAA’ batteries ensuring proper polarity. 4. Close and secure the battery compartment with the screws before attempting to use the meter. Never dispose of used batteries or rechargeable batteries in household waste. As consumers, users are legally required to take used batteries to appropriate collection sites, the retail store where the batteries were purchased, or wherever batteries are sold. Disposal: Do not dispose of this instrument in household waste. The user is obligated to take end‐of‐life devices to a designated collection point for the disposal of electrical and electronic equipment. Other Battery Safety Reminders o Never dispose of batteries in a fire. Batteries may explode or leak. o Never mix battery types. Always install new batteries of the same type. AN340-EU-EN V1.3 4/13 DataLoggerStore 1.877.766.5412 www. .com Shop for Data Logging products online at:... -
Page 14: Specifications
NTC‐type precision thermistors Automatic Power off Auto shut off after 20 minutes to preserve battery life (sleep mode) Operating Temperature 0°C to 50°C (32°F to 122°F) Storage Temperature ‐20 to 50 C (‐4 to 122 F) Operating Humidity <80% RH Storage Humidity <90% RH Operating Altitude 2000 meters (7000ft) maximum Battery Power Six (6) ‘AAA’ 1.5V batteries Battery Life > 40 hours Battery consumption 14 mA DC (approx.) Weight 210g (0.5 lbs.) including batteries Dimensions Main instrument L x W x H: 169 x 78.3 x 44mm (6.6 x 3.1 x 1.7”) Sensor diameter: 18mm (0.7”); Telescoping wand extends 1m (39”). AN340-EU-EN V1.3 4/13 DataLoggerStore 1.877.766.5412 www. .com Shop for Data Logging products online at:... -
Page 15: Error Messages
The automatic power OFF (sleep mode) function may have switched the meter OFF. Switch the meter ON and if it does not power up replace the batteries and try again. E2 Error The reading is lower than the low range limit. Test the meter in an environment known to be within acceptable meter limits. If error persists, send the unit to Extech for repair. E3 Error No field solution. Return the unit to Extech Instruments for repair. E4 Error The reading is higher than the high range limit. Test the meter in an environment known to be within acceptable meter limits. If error persists, send the unit to Extech for repair. E31 Error Temperature related circuit error. Return the meter to Extech Instruments for repair. E32 Error Memory IC error; reboot the meter and check it again; send it to Extech Instruments for repair if the error message persists. E33 Error RH measurement circuit failure; return the unit to Extech Instruments for repair. AN340-EU-EN V1.3 4/13 DataLoggerStore 1.877.766.5412 www. .com Shop for Data Logging products online at:... - Page 16 0.01829 0.01138 1 knot 0.5144 101.27 1 1.8519 1.1523 1 km/h 0.2778 54.69 0.54 1 0.6222 1 MPH 0.4464 87.89 0.8679 1.6071 1 Copyright © 2013 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form ISO‐9001 Certified www.extech.com AN340-EU-EN V1.3 4/13 DataLoggerStore 1.877.766.5412 www. .com Shop for Data Logging products online at:...
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