Manual

IN-E-HL-NT-V2_12
Rotronic AG
Bassersdorf, Switzerland
Document code
Unit
HygroLog HL-NT data logger:
instruction manual
Instruction Manual
Document Type
Page
34 of 48
Document title
© 2009-2012; Rotronic AG IN-E-HL-NT-V2_12
● Logging functions (set individually for each input, cannot be scheduled for a future date / time):
- Start logging
- Stop logging
- Log Interval
● View recorded data (in table form only)
● Probe adjustment function, limited to a 1-point adjustment of humidity and temperature one
probe at a time (HygroClip 2 probes only)
8.5 Internal function menu (models with display and keypad)
8.5.1 Log data
This menu item is used to immediately start or stop recording data from each individual input. Log
operations that are set in the future and / or settings that apply globally to all probe inputs cannot
be programmed from here. When data logging is not active, selecting this menu item displays the
following:
● Probe: probe name (custom name specified by user)
To change the probe, use the up or down arrow key to highlight probe and press ENTER. Use
the arrow keys to change the probe and press ENTER to confirm the selection.
● Interval: log interval in HH:mm:ss
● START LOGGING: record data immediately
● EXIT: exit the log data function
When data logging is either in progress or has been scheduled at a future time, the third menu
item (START LOGGING) changes to:
● STOP LOGGING: stop recording data immediately
8.5.2 View data
This menu item is used to view on the LC display data from the most recent log file for the
selected probe (older log files cannot be opened with this menu item).
● Probe: probe name (custom name specified by user)
To change the probe, use the up or down arrow key to highlight probe and press ENTER. Use
the arrow keys to change the probe and press ENTER to confirm the selection.
● [OPEN]: select and press ENTER to review the data
● [EXIT]: select and press ENTER to exit this menu item
If there is no log file in the flash memory card for the selected probe, the message “Log file not
found” appears. When there is at least one log file for the selected probe, data from the most
recent file is presented in table form, showing 7 lines of data at a time. Each line corresponds to
the log interval that was in effect when the data was recorded. The date and time corresponding
to line 4 (this line is always highlighted) are displayed at the bottom of the display.
The first 7 data points of the log file are presented first. Press the UP arrow key to view the next 7
data points. Press the DOWN arrow key to view again the previous data points. Both the date and
time change at the bottom of the display as the arrow keys are pressed until the beginning or end
of the log file has been reached.