OPERATION
• Remove the protective cap, rinse the tester
with distilled water, up to the maximum im-
mersion level.
• Turn the
UPW
on and immerse
it into the solution to be tested
without exceeding the maximum
immersion level.
• Stir gently and wait for the read-
ing to stabilize.
• The display will show the measurement ex-
pressed in µS/cm unit.
• To translate the reading into Mega-ohm, refer
to the following table.
CALIBRATION
The
UPW
tester is factory-calibrated with freshly
prepared low-conductivity solutions.
In fact, due to their high instability, calibration
solutions in the
UPW
range (below 2 µS/cm)
can not be supplied with the meter.
However, if your meter needs to be recalibrated,
use a 1.500 µS/cm solution prepared by a
qualified laboratory and keep it airtight.
• Immerse the probe into the calibration solution
and allow the reading to stabilize.
• With a small screwdriver, adjust the calibration
trimmer on the meter side until the display
shows the solution value.
BEPS AND BATTERY REPLACEMENT:
UPW
is provided with BEPS (Battery Error Pre-
venting System) which avoids any erroneous reading
due to low battery level, by automatically switch-
ing the meter off.
To replace the batteries, slide off the battery
compartment cover and replace all four 1.5V
batteries, while paying attention to the correct
polarity.
Batteries should only be replaced in a non-
hazardous area and using the battery type
specified in this instruction manual.
Reistance of
Distilled/Deionized
Water
(MegaOhm)
1
2
5
10
15
20
Equivalent
UPW reading
(µS/cm)
1.000
0.500
0.200
0.100
0.067
0.050
PROBE REPLACEMENT
For replacing the probe, contact your Dealer or
the nearest Hanna Service Center.
