Milwaukee ORP 57 User manual

ACCESSORIES
MI 57P Replaceable electrode for ORP 57
MA9015 Electrode storage solution, 230 ml
MA9016 Electrode cleaning solution, 230 ml
MA9020 ORP test solution (200/275 mV), 230
ml bottle
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 MI 57P
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
USER MANUAL
ORP 57
Pocket-size
ORP/°C/°F Meter
www.milwaukeeinst.com

Measuring unit on main LCD
Instability indicator
Main LCD
Low battery indicator Temperature rating
Secondary LCD
OPERATIONAL GUIDE
• 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.
• 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.
• The ORP (mV) value will be displayed on the
main LCD, while the temperature is shown on the
secondary LCD.
• 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.
• 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
• Press and hold the ON/OFF button until the
secondary LCD shows “TEMP” and the current
temperature unit (e.g. TEMP °C).
• Use SET/HOLD to select the unit (°C or °F);
then press again ON/OFF to return to the normal
mode.
ELECTRODE REPLACEMENT
• Remove the protective cap and unscrew the
plastic ring on the top of the electrode.
• Pull out the MI57P electrode and replace it with
a new one.
• 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.
WARRANTY
This instrument is warranted against defects in materials 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 negligence or erroneous
operation by the user, please return the parts to either distributor
or our office and the repair will be done free of charge. Damages
due to accidents, misuse, tampering or lack of prescribed
maintenance are not covered. Milwaukee/Martini instruments
reserves the right to make improvements in design, construction
and appearance of its products without advance notice.