BATTERY AND EXTERNAL POWER
KI23400/KI27400 UM-2
-
16 -
Battery & External Power
The instrument can be powered by battery or external input, and if
rechargeable batteries are fitted, onboard charging can be enabled.
2 x AA size batteries can be 1.5V alkaline or lithium cells; or
rechargeable NiMH cells.
For operation of the instrument from external power, plug in a
computer / external power pack via the micro USB connector, marked
“DC
-PWR-
IN”. The large USB
-A connector is not a power input.
To save energy when on battery power, the instrument automatically
turns off after 10 minutes without operation
Instrument Function
Typical battery run time in hours:
Optical Power Meter only
1000
Optical Light Source
Autotest
80
When using battery power, the battery symbol shows like this
The battery condition indicator shows 4 levels of battery
state. When the battery indication goes low, there is
approximately enough energy for another 10 hours of use
(Power Meter).
When the instrument is being externally powered, and is not charging
the battery, no battery symbol shows.
When the instrument is being externally powered, and is also
charging the battery, an animated battery symbol shows like
this.
To change the batteries, open the cover of the battery compartment at
the base of the instrument, remove the batteries, insert new ones
(polarity indication is shown on plastic case) and close the cover again.
This will not lose test data stored in the non-volatile memory.
If the batteries are exchanged or get run down, date and time may
need re-entering.
Disabling Battery Charging
If you will never charge batteries, it is a good idea to remove the
programming shunt from the battery compartment, see next page.
Refer following page for visual instruction on how to turn off battery
charging.
Enabling Battery Charging
As delivered, use of external power just disconnects the batteries (as
a safety precaution), and does not charge them, since accidental
charging of alkaline cells can be hazardous.
CAUTION!
Users who are
only
going to use re-chargeable batteries
can enable the battery charging feature by inserting a programming
jumper onto charging pins in the battery compartment, Figure 1. We