Nova-Tech pH 310 - Manual (Page 4)

7
6
Keypad
The lar
ge membrane keypad makes the instr
ument easy to use. Each button, when
pr
essed, has a corr
esponding graphic indicator on the LCD.
ON/OFF
............Powers and shuts of
f the meter
.
HOLD
..............Fr
eezes the measur
ed r
eading. T
o
activate, pr
ess
HOLD
while in
measur
ement mode. T
o
r
elease, pr
ess
HOLD
again.
pH 310 model only:
When auto endpoint featur
e is switched on, it
automatically holds r
eading after 5 seconds of stability
. The HOLD
indicator appears on the display
. Pr
ess HOLD
to r
elease auto end-
point featur
e.
MODE
..............Selects the measur
ement parameter
. Pr
ess MODE to toggle between
pH; mV (or r
elative mV); and date/time
(date/time available on
pH 310 model only).
In pH calibration mode, pr
ess MODE
to access
temperatur
e calibration.
CAL/MEAS
......T
oggles user between Calibration and Measur
ement mode.
• If you wer
e in pH measur
ement mode, pr
ess
CAL/MEAS
to enter
pH calibration mode.
• If you wer
e in mV
measur
ement mode, pr
ess
CAL/MEAS
to enter mV calibration mode.
NOTE:
T
emperatur
e calibration is available fr
om pH calibration mode;
see page 17 for dir
ections.
In advanced set-up mode: Pr
ess
CAL/MEAS
to r
eturn to main menu
fr
om sub menus. Pr
ess
CAL/MEAS
again to r
eturn to measur
ement
mode fr
om main menu.
ENTER
............Pr
ess to confirm values in Calibration mode and to confirm
selections in Setup mode.
▲▼
..........Pr
ess
▲
/
▼
in setup mode to scr
oll thr
ough subgr
oups.
Also pr
ess
▲
/
▼
in mV calibration mode to adjust the calibration value.
MI/MR
work in the measur
ement mode.
MI
(memory input) stor
es
the measur
ed value into memory
.
MR
(memory r
ecall) r
ecalls the
sets of values stor
ed in
the memory
.
SET
....................Pr
ess to enter SETUP
mode. SETUP
mode lets
you customize meter pr
efer
ences and defaults,
and view calibration and electr
ode of
fset data.
MI MR
2.2
MODE
HOLD
ENTER
ON
OFF
CAL MEAS MI ▲
MR ▼
SETUP
Batter
y
compartment
Remove these two screws to access batter
y
compartment
3. Preparation
Inserting the Batteries
Four
AAA
batteries ar
e included with your meter
.
1.
Use a Phillips scr
ewdriver to r
emove the two scr
ews holding the battery cover
.
See figur
e below
.
2.
Lift of
f battery cover to expose batteries.
3.
Insert batteries. Follow the diagram inside the cover for corr
ect polarity
.
4.
Replace the battery cover into its original position. Scr
ew cover back into place.
3.1
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