HygroCal100 User’s Manual
Michell Instruments
27
OPERATION
3.7 Battery Operation (Optional)
The HygroCal100 can optionally be fi tted with a battery pack, allowing it to be used
without the DC power supply connected.
The HygroCal100 can run from a fully charged battery for approximately 8 hours
(depending on set point).
The battery pack will power the instrument automatically when the DC supply is
disconnected.
3.7.1 Power Status Indicator
The power status indicator on the monitor shows one of two icons:
Symbol Function Description
Mains power connected
Indicates that the power adaptor is
plugged in. If the HC100 is fi tted with
a battery, this also indicates that the
battery is charging.
Operating on battery
Indicates that the power adaptor is
not plugged in, and shows the current
battery charge level. There are 4
indicated levels, from full (pictured) to
very low (empty icon).
Table 9 Power Status Indicator
3.8 Operating Guide
3.8.1 Manual Mode
When the Operating Mode is set to Manual, the chamber will continually generate the
currently selected set point. The set point is determined by touching the 'set point'
indication on the Main Screen, which brings up a window allowing the desired value to
be entered.
Set Point
11:
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