Audible Alarm
VFC400-WiFi User Guide
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Audible Alarm
The VFC400-WiFi is fitted with a three tone sounder. You can choose to activate the three tone sounder when
an alarm event has been registered to provide extra feedback. This is enabled or disabled in the
when configuring the logger with Control Solutions VTMC.
The alarm will sound once every four seconds for the first 24 hours. To preserve battery life, the interval at
which the alarm sounds will increase to 8 seconds when the clock passes midnight after the initial 24 hour
period (i.e. the alarm will sound every 4 seconds between 24 and 48 hours, depending on when during the day
the alarm was first triggered). When the clock passes midnight again, the interval changes to 12 seconds. It
will remain at 12 seconds until the alarm is cleared, the unit stops or is re-configured.
Note: The interval will increase, even if the alarm is re-triggered!
Please see more information about re-triggering alarms in
Alarm Re-triggering on page 12
The three tone sounder will temporarily turn off when you are reviewing data and in Low Power mode.
Real Time Clock
The time shown on the recording display is linked to the logger’s internal real time clock.
A day change occurs when the display time rolls through midnight (i.e. 00:00), which triggers the statistical
data to be finalized for the day, and a new day to be started when the next reading is taken.
Each time the logger is configured with Control Solutions VTMC the display clock value is set to the PC's
current local time (or timezone).
Note that the logger’s internal real time clock value is only updated when the recorder is configured
with Control Solutions VTMC. This prevents the data logging becoming discontinuous, which would
be the case if the real time clock were to be changed together with the display clock.
Control Solutions VTMC can display the logged readings in a number of different time zones, regardless of
where it was configured. Please note, however, that the PDF's time zone has to be set at configuration and
cannot be changed after the logger has been downloaded.
The real time clock regularly synchronises with the LogTag
®
Online server when the VFC400-WiFi is
connected to the network.
