Extech Instruments AN340 User Manual page 8

99 Reading Manual Datalogger
The meter can record up to 99 readings manually for on‐screen recall.
1. Press the MEM‐RECALL button momentarily to record one reading. The display will flash
briefly and the reading will be stored in the memory location indicated on the display (from
location 1 up to location 99). Note that all readings types are stored not only the reading
type currently displayed. For example, if air velocity readings are displayed, wet bub and dew
point temperatures will also be recorded. Date/time stamp of the recording is also recorded.
2. To review the readings, press and hold the MEM‐RECALL button for two (2) seconds; the
'RECALL' icon will switch ON. Now use the up and down arrow buttons to scroll the stored
readings. The memory location will appear first in the main display area followed by the
reading. The time stamp for the recording is shown on the lower, timer digits. Use the MODE
button to step through the other measurement types.
3. Press the ESC button momentarily to exit the MEM‐RECALL mode.
4. The readings will remain in memory until overwritten or erased by the user. To erase
readings, follow the steps provided in the SETUP mode section of this guide.
12,000 Reading Automatic Datalogger and PC Interface
The 12,000 reading datalogger can record readings at a rate selected by the used automatically.
Use the SETUP mode to select the sampling rate (from 1 second up to 4 hours 59 minutes 59
seconds). Logged readings must be downloaded to a PC using the supplied software program in
order for the readings to be read and analyzed.
1. Press and hold the START‐ESC button for two (2) seconds to start the datalogger. Readings
will be logged at the sampling rate selected by the user in the SETUP mode. The 'REC' icon
will flash while the meter is automatically logging.
2. All parameters (velocity, volume, dew point, wet bulb, and humidity) will be logged
regardless of which parameter is displayed.
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.
Shop for Data Logging products online at:
8
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