Reset
•
NO
. Exits from reset menu options without action.
•
FACTORY RESET
. Returns all settings except
date/time and ATC calibration to factory default
values after
ENTER
is pressed then restarts meter.
•
DATA RESET
. Erases data stored in memory while
retaining other settings after
ENTER
is pressed.
•
CALIBRATION RESET
. Erases non-ATC
calibration data while retaining other settings
after
ENTER
is pressed.
pH Calibration
For best results, periodic calibration with known,
accurate standards is recommended. Calibrate with
standards that bracket your intended measuring
range while including a neutral standard (pH 7.00
or 6.86). For example, if you expect to measure
samples from pH 6.2 to pH 9.5, calibration with
4.01, 7.00, and 10.01 standards will work well.
Provide stirring for best results. After calibration with
two or more points, the active slope segment of the
measurement will be visible on the bottom display
during measurement. 100% slope will be shown if
only one calibration point is performed and “- - -“
if no calibration is performed. The meter will
automatically return to measurement mode upon
successful completion of the number of specified
calibration points. To specify a different number
of pH calibration points, see
pH Buffer Options
.
Using Automatic Buffer Recognition
1
While in pH measurement mode, dip the pH
and ATC sensor(s) into your first standard, then
press
CAL
. The primary display will search for
the nearest standard value, while the secondary
display will show the un-adjusted value.
2
When the
“READY”
indicator appears, press
ENTER
to accept. The primary reading will
flash
“DONE”
.
3
Rinse your electrode(s) then dip into the next pH
standard. The primary display will search for the
nearest standard value that has not yet been
calibrated, while the secondary display will show
the unadjusted value. When the
“READY”
indicator appears, press
ENTER
to accept.
4
To calibrate another pH standard repeat Step 3 or
press
MEAS
to return to pH measurement mode.
Using Manual Recognition /
Custom Buffers
1
While in pH measurement mode, dip the
pH and ATC sensor(s) into your first standard
then press
CAL
.
2
When the
READY
indicator appears, use
up/down arrows to adjust the primary reading
to match the standard value at the measured
temperature, then press
ENTER
.
3
Rinse your electrode(s) then repeat Step 2
with a standard that is
≥
1 pH unit from the
previous standard value.
4
To calibrate another pH standard, repeat
Step 3 or press
MEAS
to return to pH
measurement mode.
mV Offset Adjustment
1
While in mV measurement mode, dip the ORP
and ATC sensors into a solution with a known
mV value (i.e. Zobel, Light’s, quinhydrone, or
iodide/triiodide) and stir.
2
When the
“READY”
indicator appears, use
up/down arrows to adjust the primary reading
to match the mV value at the measured
temperature, then press
ENTER
. The meter
allows an adjustable maximum value of ±200
mV from the factory default mV value. When
an offset has been stored successfully, R.mV
replaces mV.
Temperature Calibration/
Manual ATC
1
Press
CAL
from any measurement,
then press
MODE
.
2
Skip to step 3 for manual ATC, otherwise, dip
the temperature sensor into a solution with a
known accurate temperature. The upper display
shows the active temperature while the lower
display shows the factory default temperature
without adjustment.
3
Use up/down arrows to adjust the upper
display. Press
ENTER
to accept the calibration
temperature. The maximum adjustable value
is ±10ºC (or ±18ºF) from factory default.
3
Micro 800 pH mV Operating Instructions
