Nova-Tech pH 310 - Manual (Page 9)

T
emperature calibration
1.
Make sur
e the
A
TC pr
obe (or
temperatur
e connector of the “All-in-
One” electr
ode) is attached to the 6-pin
connector
. The
A
TC annunciator will
appear at the right-hand side of the LCD.
2.
Switch the meter on.
Press the MODE
key
to select pH mode.
3.
Press the CAL/MEAS key
to enter pH
calibration mode. The CAL
indicator will
appear above the primary display
.
4.
While in pH calibration mode,
press the
MODE
key
to enter temperatur
e calibra-
tion mode. The primary display shows the temperatur
e value with the last set of
fset
and the secondary display shows the factory default temperatur
e value.
See figur
e
5.
Dip the A
TC probe
(or “All-in-One”
electr
ode)
into a solution of known
temperature
(i.e. a temperatur
e bath).
Allow time for the temperatur
e pr
obe to
stabilize.
6.
Scroll with the
▼
and
▲
keys
to set
the corr
ect temperatur
e value (i.e. the
temperatur
e of the temperatur
e bath).
Y
ou can adjust the r
eading in incr
ements
of 0.1°C.
See figur
e
7.
Once you have selected the corr
ect
temperatur
e,
press the ENTER key
.
The meter automatically r
eturns to
pH measur
ement mode.
17
16
Temperature Calibration
The temperatur
e sensor is factory calibrated. Calibrate your sensor only if you sus-
pect temperatur
e err
ors that may have occurr
ed over a long period of time or if you
have a r
eplacement pr
obe.
4.5
ATC
CAL
C
B
B
ATC
CAL
C
A
A
Relative mV Calibration
1.
While in the measurement function, press MODE
to enter the mV mode.
The mV indicator appears in the upper right hand corner
.
See figur
e
2.
Press the CAL/MEAS key
. The
CAL
indicator appears above the primary display
. The primary display shows
the
relative mV r
eading and the secondary
display shows the absolute mV value. NOTE: If you have never calibrated relative mV or if the meter has been r
eset,
the value shown in the primary display is the same as the absolute mV value.
See figur
e
3.
Press the
▲
or
▼
keys
to enter the
relative mV value that matches your desir
ed r
eading.
See figur
e
4.
Press the ENTER key
to confirm
the r
eading and t
o
r
eturn to the
measur
ement mode. The primary
display now shows the r
elative mV
reading. The RmV indicator appears in the upper right hand corner
.
Notes T
o
view the mV of
fset value, use the
SETUP
mode Pr
ogram P3.1. See page
30 for instr
uctions.
The r
elative mV (RmV) indicator appears
whenever the mV of
fset is not zer
o.
T
o
r
eset the all calibration and of
fset values
in memory to the factory default settings, use: •
pH 300 meter
:
SETUP
Pr
ogram P
5.0.
See page 36.
•
pH 310 meter:
SETUP
Pr
ogram P6.0.
See page 39.
4.4
CAL
mV
C
C
CAL
mV
B
B
ATC
MEAS
mV C
A
A
Notes •
Y
ou can of
fset the temperatur
e r
eading up to ±
5°C fr
om the original r
eading.
•
T
o
exit this pr
ogram without confirming the temperatur
e calibration value, DO NOT
pr
ess
ENTER
in step 7. Pr
ess
CAL/MEAS
instead.
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