During Recording
VFC400-USB User Guide
40
Marking a reading with an inspection mark
When you press the
REVIEW
/MARK
button while the VFC400-USB is recording, the next
reading taken will be identified in the downloaded data and on the PDF report with an
inspection mark.
If the
Allow stopping with the Stop button
feature is enabled, a mark will also be
registered when you press the
START
/CLEAR/STOP
button, but do not complete the process
of stopping the logger. An inspection mark will also be recorded if you clear an alarm. A
mark will always be recorded for both channels.
Probe is disconnected
The display shows
instead of a temperature value if the logger's remote
temperature probe is disconnected. This function is useful if the probe is permanently
mounted, but you wish to take the VFC400-USB to a computer for downloading its data.
Any values recorded during this time will not be
taken into account when calculating statistics
values or alarms.
If, for example, the temperature was above 10 °C for
12 hours (which would normally trigger an alarm
event), but the probe was disconnected for 3 hours
during this time, no alarm would be generated.
When evaluating data, any readings taken while the probe is disconnected are shown as
--.-
in the data list. The chart in Control Solutions VTMC will show a gap during this
period. Minimum and Maximum values shown on the display will remain visible and will
not be updated until the sensor is plugged back in.
If the probe was disconnected for a complete day, the minimum and maximum statistics
for that day will show
on the display and --- in the list.
