User Manual

PRELIMINARY EXAMINATION
Thank you for choosing Milwaukee Instruments!
This user manual will provide you the necessary information
for correct use of the instrument.
Each MC MAX or MC MAX monitor is supplied with:
y MAB/ pH electrode
y MA  fixed TDS probe (MC)
y MA fixed EC probe (MC)
y Fixed temperature probe
y M pH 4.01 buer solution (sachet)
y M pH 7.01 buer solution (sachet)
y M 1382 ppm calibration solution (sachet) (MC)
y M
1500 ppm calibration solution (sachet) (MC)
y M 1413 S/cm calibration solution (sachet) (MC)
y M Electrode cleaning solution (sachet, 2 pcs.)
y Calibration screwdriver
y 12 Vdc power adapter
y Instrument quality certificate
y Instruction manual
Note: Save all packing material until you are sure that the
instrument works correctly. Any damaged or defective
item must be returned in its original packing material with
the supplied accessories.
GENERAL DESCRIPTION
The MC and MC monitors provide measurement and
24 hour continuous tracking of pH, conductivity — TDS with
MC and EC with MC — and temperature.
Quick to setup and simple to use, these monitors can be
calibrated at one or two points for pH, and at one point for
TDS (MC) or EC (MC).
Results are monitored with 3 large LCD readouts, for
simultaneous display of all three main parameters, and the
temperature range is factory calibrated.
The unit can be mounted above the sample to be tested or
rested on a flat surface next to the sample, and the 2 m (6.6’)
probes cable length allows for a correct positioning and
adequate viewing.
An external switch atop the MC converts EC conductivity
to TDS (ppm) using a fixed 0.5 or 0.7 conversion factor.
The MAB/2 is a double junction, gel-filled pH electrode,
supplied with 2 meter (6.6’) cable with a BNC connector,
water protected by a rubber sleeve.
The MA and MA probes are easy to clean and require
very little maintenance.
The fixed temperature probe is a rugged, easy to clean,
stainless steel probe that allows for temperature
compensated measurements.
FUNCTIONAL DESCRIPTION & LCD DISPLAY
CAL
pH
pH 4 pH 7
Temp
MC810 MAX
pH/TDS/Temp Monitor
ppm
14
1
2
3
4
5
6
7
8
9
10
11
12
13
1. pH readings
2. pH calibration trimmer
3. TDS (MC) or EC (MC) readings
4. TDS (MC) or EC (MC) calibration trimmer
5. Temperature readings
6. Power supply connector
7. 12 Vdc power adapter
8. Fixed temperature probe
9. MA, fixed TDS probe (MC)
MA, fixed EC probe (MC)
10. MAB/2 pH electrode
11. Protective sleeve for BNC connector
12. BNC connector (pH electrode)
13. Temperature unit selection (back of the monitor)
14. EC to TDS conversion switch (MC
SPECIFICATIONS
pH
Range
0.0 to 12.0 pH
Resolution
0.1 pH
Accuracy
±0.2 pH
Calibration
Manual, 2-point (trimmer)
Probe
MAB/2
TDS (MC)
TDS Factor
0.5 or 0.7
Range
0 to 1990 ppm
Resolution
10 ppm
Accuracy
±2% full scale
Calibration
Manual, 1-point (trimmer)
Probe*
MA (fixed)
EC (MC)
Range
0.00 to 5.00 mS/cm
Resolution
0.01 mS/cm
Accuracy
±2% full scale
Calibration
Manual, 1-point (trimmer)
Probe*
MA (fixed)
Temperature
Range
–10.0 to 60.0 °C (14.0 to 140.0 °F)
Resolution
0.1 °C / 0.1 °F
Accuracy
±0.3 °C / ±0.5 °F
Calibration
Factory calibrated
Compensation
Automatic, 5 to 50 °C (41 to 122 °F),
TDS / EC readings only
Probe*
Stainless steel (fixed)
Power Supply
12 Vdc power adapter (included)
Dimensions
160 x 110 x 35 mm (6.3 x 4.3 x 1.4’’)
Weight
560 g (1.2 lb.)
* To be replaced by authorized technical personnel only.
GENERAL OPERATIONS
TURNING THE MONITOR ON
With the monitor installed in position, plug the power supply
connector into the 12 Vdc power adapter (supplied), and
connect it to the mains.
SELECTING TEMPERATURE UNIT
Option: Celsius (default), Fahrenheit
Temperature unit selection is done through an external
switch, located at the back. To change the unit:
1. Remove the label and set the switch to the desired position.
2. Replace the label for better protection against humidity.
TDS FACTOR MC
TDS factor is a conversion factor that is used to change an
EC measurement to a ppm measurement.
MC is equipped with a switch, located on top of the
instrument, that allows users to select between 0.5 (default
option) and 0.7 conversion factor.
Press the switch to select option.
pH ELECTRODE CONNECTION
To protect against humidity, the pH probe’s BNC
connector is protected with a rubber sleeve.
1. Slide down the sleeve.
2. Connect the pH electrode to the BNC socket
and slide the rubber sleeve over the connector.
Ensure the connector is completely covered.
pH CALIBRATION
Preparation
Always use fresh calibration buers and perform electrode
maintenance prior to calibration (see CARE & MAINTENANCE
section).
Pour the buer solution into clean beakers. If possible, use
plastic beakers to minimize any EMC interferences. For
accurate calibration and to minimize cross-contamination,
use two beakers, one for rinsing and one for calibration.
One- or two-point calibration can be performed using one
of the three standard buer solutions: 4.01, 7.01, or 10.01 pH.
Procedure
1. Remove the pH electrode protective cap.
2. Immerse the pH electrode (together with the EC or TDS
electrode, working as matching pin) in the pH 7.01 rinse
buer solution.
Raise and lower the electrodes several times. Discard this
solution.
3. Slowly place the pH electrode (together with the EC
or TDS working as matching pin) 4 cm (1 1/2”) in 7.01 pH
calibration buer solution. Dislodge any bubbles that may
adhere to the electrodes.
4. Wait a few minutes for the measurement to stabilize.
5. Use the calibration screwdriver to adjust the pH 7 trimmer
until the pH reading shows “7.0”.
6. Repeat step 2 using the second rinse buer solution i.e.
4.01 or 10.01 pH.
7. Repeat step 3 using the second calibration solution i.e.
4.01 or 10.01 pH.
8. Wait a few minutes for the measurement to stabilize.
9. Use the calibration screwdriver to adjust the pH 4 trimmer
until the pH reading shows “4.0” or “10.0”.
0.5 0.7