341350A-en-US_V1.3 8/15
3
Operation
Battery
Installation/Replacement
Open
the
battery
cover
by
inserting
a
small
coin
into
the
latch
slot
and
pressing
downward.
The
cover
will
release
in
the
direction
of
the
arrow.
Install
the
new
battery
and
replace
the
cover.
pH
Measurements
1.
Press
the
POWER
button
to
turn
the
meter
ON
(the
meter
will
cycle
through
a
self
‐
check).
2.
Press
the
MODE/CAL
button
until
the
PH
icon
switches
on.
3.
Press
the
UNIT/SET
button
to
select
ºC
or
ºF.
4.
Connect
the
pH
electrode
to
the
side
pH
BNC
connector.
5.
Adjust
the
▲▼
buttons
to
match
the
temperature
of
the
solution
(or
use
the
external
temperature
probe
to
do
so).
6.
If
required,
calibrate
the
electrode
(see
pH
Calibration).
7.
Place
the
electrode
in
the
sample
solution
and
read
the
pH
value
on
the
display.
8.
When
all
measurements
have
been
taken,
unplug
the
electrode
and
rinse
in
distilled
water;
then
shake
and
store
it
in
the
wetting
cap
with
4.0
M
KCL
or
in
a
pH
4
buffer
solution.
Conductivity/TDS/Salt
Measurements
1.
Press
the
POWER
button
to
turn
the
meter
ON.
2.
Press
the
MODE/CAL
button
until
the
COND
,
SALT
or
TDS
icon
is
displayed.
3.
Connect
the
conductivity
electrode
to
the
side
conductivity
connector.
4.
If
required,
calibrate
the
electrode
(see
Conductivity
Calibration).
5.
Place
the
electrode
in
the
sample
solution
and
read
the
value
on
the
display.
6.
When
finished,
unplug
the
electrode
and
rinse
in
distilled
water.
ORP
(mV)
Measurements
1.
Press
the
POWER
button
to
turn
the
meter
ON.
2.
Press
the
MODE/CAL
button
until
the
ORP
icon
is
displayed.
3.
Connect
the
ORP
electrode
to
the
side
ORP
BNC
connector.
4.
Place
the
electrode
in
the
sample
solution
and
read
the
mV
value
on
the
display.
5.
When
all
measurements
have
been
taken,
unplug
the
electrode
and
rinse
in
distilled
water.
6.
Store
the
probe
tip
in
the
wetting
cap
in
a
4.0
M
KCL
or
in
a
pH
4
buffer
solution.
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