Milwaukee EC40 User manual

INSTRUCTION MANUAL
EC40
EC/TDS Nutrient Meter
BATTERY REPLACEMENT
Milwaukee EC40 Nutrient Meter is supplied with three 1.5V AA
batteries.
Do not mix dierent brands of batteries.
Do not mix old batteries with new ones.
Do not put them upside down.
Please follow these steps to replace the batteries:
1. Rotate the battery cap counter-clockwise and remove it. Short
press the snap fit to release the safety gate. With the snap fit
pulled back, take out the old batteries.
2. Insert the new batteries with negative (–) end down into the
body.
3. Make sure the safety gate clicks back in place, paying attention
not to damage the internal wires.
4. Replace the battery cap. There must be no space left
between the cap and body to ensure the meter remains 100%
waterproof.
CERTIFICATION
Milwaukee Instruments conform to the CE European
Directives.
Disposal of Electrical & Electronic Equipment. Do not
treat this product as household waste. Hand it over to
the appropriate collection point for the recycling of
electrical and electronic equipment.
Disposal of waste batteries. This product contains
batteries. Do not dispose of them with other household
waste. Hand them over to the appropriate collection
point for recycling.
Please note: proper product and battery disposal prevents potential
negative consequences for human health and the environment. For
detailed information, contact your local household waste disposal
service or go to www.milwaukeeinstruments.com (USA & CAN) or
www.milwaukeeinst.com.
RECOMMENDATION
Before using this product, make sure it is entirely suitable for your
specific application and for the environment in which it is used.
Any modification introduced by the user to the supplied equipment
may compromise the meter’s performance. For your and the meter’s
safety do not use or store the meter in hazardous environment.
To avoid damage or burn, do not perform any measurement in
microwave ovens.
WARRANTY
This instrument is warranted against defects in materials and
manufacturing for a period of 2 years from the date of purchase.
This warranty is limited to repair or free of charge replacement if
the instrument cannot be repaired. Damage due to accidents,
misuse, tampering or lack of prescribed maintenance is not covered
by warranty. If service is required, contact your local Milwaukee
Instruments Technical Service. If the repair is not covered by the
warranty, you will be notified of the charges incurred. When shipping
any meter, make sure it is properly packaged for complete protection.
ISTEC40 09/20
Sales and Technical Service Contacts:
Milwaukee Electronics Kft.
Alsó-kikötő sor 11C
H-6726 Szeged - HUNGARY
tel: [phone]
fax: [phone]
e-mail: [e-mail]
Milwaukee Instruments, Inc.
2950 Business Park Drive
Rocky Mount, NC 27804 USA
tel: [phone]
fax: [phone]
e-mail: [e-mail]
milwaukeeinstruments.com (USA & CAN)
milwaukeeinst.com

PRELIMINARY EXAMINATION
Thank you for choosing Milwaukee Instruments!
While taking out the meter from the packaging, make sure that it was
not damaged during shipping. Please notify your closest Milwaukee
oice if it was damaged.
The EC40 is delivered in a plastic tube and is supplied complete with:
y3 x 1.5V AA batteries
yInstrument quality certificate
yInstruction manual
Note: Keep all packing material until you have verified that the
instrument works correctly. Defective or damaged items must be
returned in their original packing material.
GENERAL DESCRIPTION
The EC40 Nutrient stick is designed to measure the EC (conductivity) of
the nutrient solutions used in agriculture and hydroponic applications.
It features a visual alarm that blinks if the measured value is above the
set point. The EC40 is built in a compact, waterproof and floating casing.
FEATURES
yReadings are displayed on an easy to read graph bar with 20 LEDs.
yThe readings are displayed in four measuring scales: CF, EC, PPM500
and PPM700.
yWhen the reading is out of range, the top or bottom LED blinks.
yThe alarm set point can be easily adjusted.
yThe meter is factory calibrated and does not require any calibration.
yThe meter switches on and o automatically.
yBattery level indicator activates when you insert the batteries into
the instrument.
yIts compact, waterproof and floating design makes the meter water
resistant and ideal to mix the nutrient solution in the tank.
yThe probe is protected by a crown-shaped ring which is detachable
so it is easy to clean.
yThe meter is supplied with a wrist strap.
yEssential operational instructions are printed on the meter.
yThe meter has a graphite EC probe with a built-in temperature sensor,
housed in a stainless-steel casing, which compensates temperature
in seconds.
SPECIFICATIONS
Range
0.2 to 4 mS/cm
2 to 40 CF
140 to 2800 ppm 0.7
100 to 2000 ppm 0.5
Resolution
0.1 mS/cm
1 CF
70 ppm (factor: 700 ppm = 1 mS)
50 ppm (factor: 500 ppm = 1 mS)
Accuracy ± 4% of reading ± 1 resolution point
Calibration Factory calibrated
Probe Graphite electrode in ABC + PC body
Temperature
compensation
Automatic from 5.0 to 50.0 ºC
(41.0 to 122.0 ºF)
Battery type 3 x 1.5V AA alkaline
Battery life about 3 years (at 10 measurements per day)
Measurement display 20 blue LEDs bar
Environment 0 to 50 ºC (32.0 to 122.0 ºF); max.RH 95%
Dimensions 420 mm (17”) length, 30mm(1.2”)diameter
Weight with batteries 255 g. (9 oz.)
Casing protection IP67, floating
OPERATIONAL GUIDE
When immersed, the meter starts measuring automatically and
displays current Electrical Conductivity level. Auto shut-o time is set at
20 seconds after the measurement has stabilized.
Switching the Meter On
The meter switches on when the batteries are placed inside.
Itperforms a self-test to identify possible LED issues. The LEDs turn
on one by one from the bottom to the top and then reverse top to
bottom. Then, the LED bar shows the voltage level of the batteries for
a few seconds. If the top LED is on it means that batteries are fully
charged. If the bottom LED is on, it indicates low charge. In this case,
please change the batteries.
Measurement
1. Place the head of the probe in the nutrient solution. The meter
switches on automatically and starts measuring.
2. An LED light turns on once the reading has stabilized. The readings
are displayed in four measuring scales: CF, EC, PPM500 and PPM700.
If 2 LEDs are on, the measured value is between those two values.
3. Continuously blinking LED/LEDs indicate that the measured value is
over the alarm set point.
4. The meter remains on for approximately 20 seconds. If the EC value
changes, auto shut-o time is automatically reset. The meter stops
measuring if the read value drops below minimum value.
5. The top/bottom LED is blinking when the measurement is over/
under range.
Alarm Set Up
1. Rotate the battery cap counter-clockwise and remove it.
2. Push the SETUP button once.
3. The LED turns on and displays the last set alarm value.
4. To change the alarm value, push and hold the SETUP button. The
LED bar increases gradually. Release the button to save the new
alarmvalue.
5. To disable the alarm, release the SETUP button when the top and
bottom LEDs are on.
6. Put back the battery cap.
Calibration
The meter is factory calibrated and does not require user calibration.
CLEANING & MAINTENANCE
Frequent cleanings are recommended to ensure accurate
measurements.
1. Twist the crown-shaped ring 30 degrees counter-clockwise then
remove it.
2. Clean the head of the probe under running tap water.
3. If required, clean the graphite sensors with a couple drops of dish
liquid detergent, and scrub o any residue with a toothbrush.
4. Rinse the probe under running tap water.
STORAGE
Make sure that the probe is clean and dry before storing it in its
protective packaging.