Main
LCD
Measuring Unit on Main LCD
Instability
Indicator
Battery
Indicator
Temperature Reading
on Secondary LCD
OPERATIONAL GUIDE
y
Remove the electrode and turn the meter
on by pressing the ON/OFF button. All the
used segments on the LCD will be visible
for 1 second or as long as the button is
pressed.
y
Immerse the electrode in the solution to
be tested. Stir gently and wait for stable
reading, i.e. the instability indicator
(hourglass) on the LCD turns off.
y
The ORP (mV) value will be displayed on
the main LCD, while the temperature is
shown on the secondary LCD.
y
To freeze the display,
while in
measurement mode, press and hold the
SET/HOLD button. The “HOLD” message
appears on the secondary display and
the reading will be frozen on the LCD.
Press any button to return to normal
mode.
y
To turn the meter off,
press the ON/OFF
button. The “OFF” message will appear
on the secondary display. Release the
button.
Note: The meter is factory calibrated.
Contact the nearest Service Center for
periodic recalibration.
°C/°F SELECTION
y
Press and hold the ON/OFF button
until the secondary LCD shows “TEMP”
and the current temperature unit (e.g.
TEMP °C).
y
Use SET/HOLD to select the unit (°C or
°F); then press again ON/OFF to return to
the normal mode.
ELECTRODE REPLACEMENT
y
Remove the protective cap and unscrew
the plastic ring on the top of the electrode.
y
Pull out the MI57P electrode and replace
it with a new one.
y
Make sure the gaskets are in place
before screwing back the ring.
BATTERY REPLACEMENT
When the batteries become weak, the
battery symbol on the LCD will light up to
advise that only a few hours of working
time is remaining.
The meter is also provided with BEPS
(Battery Error Prevention System), which
avoids any erroneous readings due to low
battery level by automatically switching
the meter off.
It is recommended to replace the batteries
immediately. To replace the batteries
unscrew the battery compartment cap and
replace all four 1.5V batteries while paying
attention to their polarity. Make sure the
gasket is in place before screwing back the
cap.
Batteries should only be replaced in a
non-hazardous area using the battery type
specified in this instruction manual.
ACCESSORIES
MI57P
Replaceable electrode for
ORP57
MA9015 Electrode storage solution,
230 ml
MA9016 Electrode cleaning solution,
230 ml
M10000B Electrode rinse solution, 20 ml
sachet, 25 pcs.
SPECIFICATIONS
Range
±1000 mV (ORP)
-5.0 to 60.0 °C / 23.0 to 140.0 °F
Resolution
1 mV
0.1 °C / 0.1 °F
Accuracy
(@25 °C)
±2 mV
±0.5 °C / ±1 °F
Typical EMC
Deviation
±2 mV
±0.3 °C / ±0.6 °F
Calibration
Factory calibrated
Probe
Replaceable MI57P
Environment -5 to 50 °C; 100% RH max.
Battery Type 4 x 1.5V; IEC LR44, A76
Battery Life approx. 300 hours of use
Auto-off
after 8 minutes of non-use
Dimensions 200 x dia 38 mm
Weight
100 g
