Milwaukee MC745 User manual

USER MANUAL
MC745
MILWAUKEE MC311 EC CONTROLLER
WITH TWO MP810 1,5 L/H DOSING PUMPS
SPECIFICATIONS
MC311 EC Meter
Range 0.0 to 10.0 mS
Resolution 0.1 mS
Accuracy ±2% Full scale
Setpoint 0.8 to 2.8 mS
Alarm / Output active when measure is
Power Socket higher/lower than selected
setpoint depending on
user selection
Power drivers 115VAC, 2A, 60Hz
or 230VAC, 1A, 50Hz
pH electrode MA812/2 (included)
Environment 0 to 50°C, 95% RH
not condensing
Power supply 12 VDC (included)
Dimensions 148.5 x 82.5 x 32 mm
Weight 180 g
MP810 Peristaltic Dosing Pump
•Constant Dosing 
ow of 1,5 l/h
(25 cc/min)
• No regulation
• Maximum pressure: 1 bar
•Made of Polipropilene (PP)
•Peristaltic tube in Santoprene
•Power supply: 230 VAC ± 10%
Authorized Distributor in Australia
Pacific Sensor Technologies Pty Ltd
Unit 4, 3 Neutron Place Rowville, VIC 3178 Australia
1300 662 720 | [email protected]
www.pacificsensortech.com.au

Always remove the probe’s protective cap before taking any
measurement. Make sure that the meter has been calibrated
before taking any measurements
Immerse the tip (2.5 cm) of the EC probe into the sample. (for
example it can oat with the help of a piece of polystyrol).
Turn the instrument on by pressing the ON/OFF button.
The nature of the setpoint can be selected by setting the switch
to the desired position (ABOVE or BELOW).
USE ALWAYS BELOW!
Allow the reading to stabilize and the meter will start continuous
monitoring.
A blinking alarm will indicate when the measured EC value
is higher or lower than selected setpoint, depending on user
selection. When the alarm is activated, it also activates the
connection base and the auxiliary equipment.
The setpoint can be selected by adjusting the central front knob
to the desired value. The selectable range is from 0.8 to 2.8 mS.
Connect the supplied 240VAC/12VDC power
adapter to the meter and to the main line.
Connect the connection base (black and white
outlet) to the main line.
INSTALLATION OF CONTROLLER:
CALIBRATION:
•Clean the probe with alcohol and let it dry (if a more thorough
cleaning is required, brush the metal pins with ne sandpa-
per and then rinse with water).
•Open a sachet of suitable conductivity calibration solution and
immerse the probe, making sure that metal pins are completely
submerged. Use M10031 (1413 μS/cm).

•Turn the meter on by pressing the ON/OFF
key.
•Wait until the reading stabilize for tempera-
ture variations, and then adjust the EC
calibration trimmer on the front panel with
the supplied screwdriver until the display
shows: “1.4” mS.
INSTALLATION OF THE
MP810 1,5 L/H DOSING PUMP
Connect the rigid tube to the pump (aspiration – arrow upwards).
Fix the white lter on the other end of the tube, where the dis-
solved pH reducing acid will be drawn in – to prevent small ob-
jects entering the pump.
Connect the soft tube to the pump (impulsion – arrow down-
wards). The injection tting will be placed at the end of this tube
only to inject into a piping. (This tting has a thread that links it
to the piping.)
The calibration is now complete and the meter is ready for use. The instrument should
be re-calibrated at least once a month, or when the probe is changed.
Mount the bracket in the wall in upright position above the water
container (which contains a solution of EC reducing acid and
water).
Place the pump in vertical position (with the tubes below) on the
wall, above and centered with the “Mounting bracket“. Then go
down the pump until it is joined with the bracket.
Connect the pump to the MC311 EC controller (on the black and
white outlet). The pump will discharge 0,08 cL every 2 seconds
when active.
Place the plug and B/W outlet far away from water!
Before servicing (maintenance) on the pump (e.g. changing
tube), please disconnect the equipment.

It is suggested to dissolve 10 cL of Mono-nutrient in a 5L container of water. Depending
on the volume of your tank and the brand of your Mono-nutrient (and whether it is more
or less concentrated), this quantity can be increased later. It is better to dissolve more
than less. It is suggested to use an airstone on the bottom of your tank. The pump can
be attached directly to the container of the solution.
OPTIONAL ACCESSORIES:
M10000B Electrode rinse solution, 20 ml sachet (25 pcs)
M10031B 1413 μS/cm calibration solution, 20 ml sachet (25 pcs)
M10032B 1382 ppm calibration solution, 20 ml sachet (25 pcs)
MA9061 1413 μS/cm calibration solution, 230 ml bottle
MA9062 1382 ppm calibration solution, 230 ml bottle
WARRANTY:
These instruments are warranted from all defects in materials and manufacturing for a period of two years
from the date of purchase. The electrode is warranted for a period of 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 dealer or our o󰀩ce and the repair
will be e󰀨ected free of charge.
Note: We reserve the right to modify the design, construction and appearance of our products without ad-
vance notice.
IMPORTANT: For a smooth adjustment of the EC of your nutrient mix, it is advisable
to dilute each liquid nutrient with water in a jug. Example : For a 100 litre tank,
dilute 500cl of nutrient in a 5 litre jug of water. This quantity can be adjusted
according to the volume of your tank, the concentration of your nutrient and the power
of your recirculation pump or air di󰀨user stone.
VERY IMPORTANT: Both dosing pumps work at the same time and inject the same
amount of fertilizer A and fertilizer B. If your fertilizer A + B is not 50%/50%, you will
have to dilute your fertilizers proportionally. Example : For a 40%/60% fertiliser A + B,
put 4 caps of the bottle A and ll it with water, and on the bottle B, put 6 caps of the
fertiliser B and ll it with water (adjust the quantity of fertiliser as necessary).
VERY IMPORTANT: To obtain an even mixture and an immediate dilution of your
fertilizers, install at the bottom of your tank a recirculation pump and/or an air di󰀨user
stone.