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4
Starting up the Instrument
4.0 Starting up the Instrument
4.1 Power Supply
The Pooltest 25 is designed to be powered either
from alkaline batteries or via the USB port.
When operating on battery power, the battery level
is indicated on the Info Panel. A minimum voltage
of 3.0V is needed to operate the photometer and
a flashing battery symbol indicates a critically low
battery. Change batteries immediately or switch to
alternative USB power. The Pooltest 25 will
automatically power down when power is no longer
capable of providing acceptable performance.
To power via the USB port, use the supplied cable
connected either to the mains adaptor or a PC. The
USB icon will appear when the USB connection is
made and battery power will no longer be consumed.
The Pooltest 25 has a back-up battery mounted
internally to save instrument settings and data
during power loss and instrument idle periods.
4.2 Replacing Batteries
The battery compartment is located on the base
of the instrument and secured by four screws.
Remove the cover and install a complete set of
new batteries, observing the correct polarity as
indicated. Use 3 x 1.5V 'AA' alkaline batteries
or equivalent. See Appendix 2 for more details.
To avoid corrosion damage through leakage,
remove batteries from the instrument if it is to
be stored or left unused for a long period.
4.3 Start-up Screen
The default start screen on power up is the
'Choose a Test' screen.
6
To access the Mode menu press the left arrow key
to highlight 'Back' and press OK on the keypad.
To choose a test use the up/down arrows to scroll
through the list and press OK on the desired
parameter or use the direct access.
4.4 Mode Screen
The Pooltest 25 has three operating modes
as follows:
Choose a Test
The Choose a Test mode is the standard operating
mode for taking photometer readings and is the
default start-up screen on power up. See Section
8 for more information.
System Mode
Personalise your Pooltest 25 and manage
stored data within the System mode. Options
include setting Operator/Sample IDs,
interrogating the result log and defining the
instrument operating conditions. See Section
6 for further information.
Check Standard Mode
Validate performance of your Pooltest 25
using Palintest Check Standards.
See Section 9 for more information.
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