Notes:
•
If no valid buffer is detected, the
LCD will show the “WRNG”
message.
•
For exiting the calibration after the first point is
accepted, press the “ON/OFF” button: the LCD
will show the “OK 1” message for 1 second and
then returns to the normal mode.
If using pH 4.01 or 10.01 (or 9.18) buffer for the
first calibration point, the meter will exit the
calibration mode after recognizing the buffer value
and showing the “OK 1” message for 1 second.
•
To quit calibration and return to the last data,
press “ON/OFF” after entering the calibration
mode and before the first point is accepted. The
secondary LCD shows the “ESC” message for
1 second and the meter returns to the normal
mode.
•
To clear a previous calibration and reset to the
default value, press the “SET” key after entering
the calibration mode and before the first point is
accepted. The secondary LCD shows the “CLR”
message for 1 second, the meter resets to the
default calibration and the “CAL” tag on the LCD
disappears.
TAKING ORP MEASUREMENTS
•
Remove the protective cap and immerse the
electrode in MA9016 cleaning solution for a few
minutes.
•
Select the ORP (mV) mode with the “SET” key.
•
Place the probe into the sample to be tested, stir
gently and wait for reading stabilization (the clock
symbol on the LCD disappears).
Note: The ORP range is factory calibrated. Contact
your dealer for recalibration, if needed.
Note: ATC tag turns off because the mV readings
are not temperature compensated.
BATTERY REPLACEMENT
The meter shows the remaining battery per-
centage every time it is switched on. When the
battery level is below 5%, the battery symbol
on the bottom left of the LCD lights up to
indicate a low battery condition.
The meter is also provided with BEPS (Battery
Error Prevention System), which automatically
switches the meter off if the battery level is so
low to cause erroneous readings. It is recom-
mended to replace immediately the battery.
Turn the meter off, re-
move the battery compart-
ment cover from the rear
of the meter and replace
the rundown 9V battery
with a new one.
Install the battery while
paying attention to its po-
larity and reattach the
cover.
SPECIFICATIONS
RANGE (*)
-2.00 to 16.00 pH
-2000 to + 2000 mV
-5.0 to 105.0 ºC or 23.0 to 221.0 °F
RESOLUTION
0.01 pH / 1 mV
0.1 °C or 0.1 °F
ACCURACY (@25°C)
±0.02 pH / ±2 mV
±0.5°C up to 60°C; ±1°C outside
±1°F up to 140 °F; ±2°F outside
TYPICAL EMC DEVIATION
±0.02 pH / ±2 mV
±0.2 °C or ±0.4 °F
TEMPERATURE COMPENSATION
Automatic, from -5 to 80°C
pH CALIBRATION
Automatic, 1 or 2-point
ORP CALIBRATION
Factory calibrated
PROBE (included)
MA923D/1
amplified pH/ORP/temperature probe
ENVIRONMENT
0 to 50°C; 100% RH max.
BATTERY
1 x 9V alkaline (included)
BATTERY LIFE
approx. 500 hours of use
AUTO-OFF
after 8 minutes of non-use
DIMENSIONS
200 × 85 × 50 mm
WEIGHT
260 g (with battery)
(*)
The temperature range is limited to 80°C (176°F) if
using the MA923D/1 probe.
ACCESSORIES
MA923D/1 Combination amplified pH/
ORP/Temperature probe
with DIN connector and 1 m
cable
M10004B
pH4.01 buffer solution, 20
ml sachet, 25 pcs.
M10006B
pH6.86 buffer solution, 20
ml sachet, 25 pcs.
M10007B
pH7.01 buffer solution, 20
ml sachet, 25 pcs.
M10009B
pH9.18 buffer solution, 20
ml sachet, 25 pcs.
M10010B
pH10.01 buffer solution, 20
ml sachet, 25 pcs.
MA9004
pH4.01 buffer solution, 230
ml bottle
MA9006
pH6.86 buffer solution, 230
ml bottle
MA9007
pH7.01 buffer solution, 230
ml bottle
MA9009
pH9.18 buffer solution, 230
ml bottle
MA9010
pH10.01 buffer solution, 230
ml bottle
MA9015
Electrode storage solution,
230 ml bottle
MA9016
Electrode cleaning solution,
230 ml bottle
M10000B
Electrode rinse solution, 20
ml sachet, 25 pcs.
WARRANTY
This instrument is warranted against defects in mate-
rials and manufacturing for a period of two years
from the date of purchase. Probe is warranted for 6
months.
If during this period the repair or replacement of parts
is required, where the damage is not due to negli-
gence or erroneous operation by the user, please
return the parts to either distributor or our office and
the repair will be effected free of charge.
Damages due to accidents, misuse, tampering or
lack of prescribed maintenance are not covered.
