11
Chapter 3
Operation
Overview
The Model 8520 D
USTTRAK
TM
Aerosol Monitor has four modes of
operation, Survey, LOG 1, LOG 2, and LOG 3. When the D
USTTRAK
monitor is first turned on it will be in Survey mode, which is used to display
real-time readings and to determine statistics such as average, minimum, and
maximum readings. LOG 1 mode is used to record individual data points for
later analysis using a fixed protocol. LOG 2 and LOG 3 modes have a user-
defined protocol, set up using T
RAKPRO
TM
Data Analysis Software.
T
RAKPRO software is used for analysis of data taken in any of the three LOG
modes, but cannot be used on samples taken in Survey mode.
D
USTTRAK Aerosol Monitor Keypad Functions
When pressing the keys on the front panel, the D
USTTRAK monitor beeps to
confirm the function. If you press a key and the D
USTTRAK monitor does not
beep, the D
USTTRAK monitor does not allow that function during the
selected sampling mode.
ON/OFF Key
Press the ON/OFF key to power the D
USTTRAK monitor. The DUSTTRAK
monitor immediately begins an internal self-check, while illuminating all the
display digits and symbols. If a problem is detected, the display shows the
message “SERVICE” along with a number to indicate that the D
USTTRAK
monitor requires servicing. Refer to the Chapter 5: “Troubleshooting
,” for
information regarding service numbers. If the “SERVICE” message appears,
the D
USTTRAK monitor pauses until any key is pressed.
When the D
USTTRAK monitor completes its internal self-check, it displays
the approximate percentage of battery life remaining. The D
USTTRAK
monitor displays the battery symbol
when the battery voltage becomes
very low. After the battery symbol appears, the D
USTTRAK monitor runs for
approximately 60 minutes before displaying the message “LO” (for a few
seconds) and then automatically turning off. This feature is accurate for
alkaline batteries only.
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