PortaSens II
Gas Detector
C16 Leak Detector
O & M Manual
Rev. G, 11/07
- 27 -
DATA LOGGING
The data logging function in the C16 is provided to allow collection and storage of gas
concentration data over variable time periods. The data logger will store instantaneous gas
values every 1, 5, 10, or 15 minutes. The logging interval is user selectable, and the logging is
started and stopped using the keys on the instrument.
To set up the data interval, start the logger, and stop the logger, you must access the
LOG menu. Beginning from the main display, press the MENU key to get to the display shown
below.
M1
P
0
PPM
NH3
LOG INFO DONE
Menu Mode display for access to information screens and
logging functions.
Press the LOG key and the display will change to:
L1
01 Minute Interval
007 Days 20 Hrs Free
CLEAR INT START DONE
Logger menu for clearing data, changing log interval, starting
and stopping logger.
From this menu, the data logger can be cleared of accumulated data, the logging interval
“INT” can be adjusted, and the logging can be started or stopped. The L1 display shown above
may not always contain all of the softkeys shown. If the logger has recently been cleared, the
CLEAR key will not be shown. If the logger is already running, the display will look like L2 below.
L2
01 Minute Interval
007 Days 20 Hrs Free
STOP DONE
Alternate display to L1 above which appears if the logger is
already running when this display is selected.
To clear the data logger, the logging function must be stopped. Be sure that the data you
are clearing has previously been transferred to a computer, or that you want to simply discard the
data. Once cleared, you cannot retrieve the data. When ready, press the CLEAR key and hold it
for a few seconds. When the data has been cleared, the Days/Hrs Free numbers will reset to
their maximum storage values.
To adjust the storage interval, press the INT key until you have selected the desired
interval. You may select 1, 5, 10 or 15 minute intervals. Note that the Days/Hrs Free line will
change when you select a different interval. This line tells you how long you can log data at the
selected storage interval before the memory is full.
To start the data logger, press and hold the START key for a few seconds until the
display switches to the main display. You will note that a logging active symbol appears on the
display. This symbol (L
g
) appears just above the OFF key on the display. If you watch this
symbol carefully, you will see it change to an “s” each time a data point is stored.
To stop the logger, press and hold the STOP key for a few seconds until display L1
appears.
