LaMotte WAT-MP-DR User Manual
pH W aterproof Testr 1
5-0008
HOLD
CON
CAL
ON
OFF
pHTestr 1
WATERPROOF
LaMotte Company • PO Box 329 • Chestertown • Maryland • 21620
800-344-3100 • 410-778-3100 • Fax 410-778-6394
www.lamotte.com
© 1999 LaMotte Company • Printed in USA • 12/02 • Code 65-0008
Specifications
Range: –1.0 to 15.0 pH extended range
Resolution: 0.1 pH
Accuracy: ±0.2 pH
Operating Temperature: 0 to 50 °C, 32 to 122 °C
Battery/Life: Three 1.5V Eveready A76BP/24 hours
or equivalent
Size (meter only): 6.5" X 1.5"
Weight (meter only): 3.25 oz (90 g)
Before First Use
1. 2.
Remove the cap from the
bottom of the Testr to
expose the electrode bulb
and reference junction.
Do not be alarmed
if white crystals are
present in the cap
or electrode
assembly . They will
dissolve during the
pre-soak.
CON
HOLD
CAL
ON
OFF
pHTestr1
WATERPROOF
Soak the electrode in
about 1" of electrode
storage solution, pH 4
bufferortapwaterfor
at least 30 minutes.
If the electrode
dries out
between uses,
recondition it by
following this
soaking
procedure.
pHTestr1
30
CON
HOLD
CAL
ON
OFF
WATERPROOF
1"
2
Calibration
Calibration should be done regularly, typically every day that the Testr is used.
1. 2.
Dip1/2"to1"ofthe
Turn the Testr on
by pressing the
ON/OFF button.
CON
HOLD
CAL
ON
OFF
pHTestr1
WATERPROOF
electrode into a pH 7.0
buffer for general purpose
use, into a pH 4.0 buffer
solution if testing acidic
solutions, or a pH 10.0
buffer if testing
alkaline (or basic)
CON
HOLD
CAL
ON
OFF
pHTestr1
WATERPROOF
solutions. If testing
solutions close to
7.0, use the 7.0
buffer for
1/2"
to 1"
calibration.
3. 4.
Press the CAL button
to enter the Calibrate
(CA) mode.
The display will
flash "CA" and
then a pH value
close to the buffer
value will flash
repeatedly .
CON
HOLD
CAL
ON
OFF
pHTestr1
WATERPROOF
After about 30 seconds,
press the HOLD/CON
button to confirm the
calibration.
"CON" will
appear on the
display . It will
then switch back
toapHreadingof
the buffer.
CON
HOLD
CAL
ON
OFF
pHTestr1
WATERPROOF
30
5.
Rinse the
electrode with
deionized water
or tap water.
No further calibration is needed if
all measurements are expected to
CON
HOLD
CAL
ON
OFF
be between pH 6 and pH 8 for
general purpose use. Perform the
calibration using pH 4.0 buffer if
readings below pH 6 are expected.
pHTestr1
WATERPROOF
Perform the calibration using pH
10.0 buffer if readings above pH 8
are expected.
3
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