Dear Customer,
Thank you for choosing a Milwaukee Instruments
product. This manual will provide you with the necessary
information for the correct use of the instrument. Please
read it carefully before using the meter.
SPECIFICATIONS
Range
0.00 to 10.00 mg/L Cl
2
Resolution
0.01 mg/L (0.00-3.50 mg/L)
0.10 mg/L (above 3.50 mg/L)
Precision
±0.17 mg/L @5.00 mg/L
Light Source
Tungsten lamp
Light Detector
Silicon Photocell and 525 nm narrow
band interference filter
Method
Adaptation of USEPA method 330.5 and
Standard method 4500 - Cl G
Environment
0 to 50 °C (32 to 122 °F)
100% RH max
Battery Type
9 volt (1 pc)
Auto-Shut off
After 10’ of non-use
Dimensions
192 x 104 x 52 mm
(7.5 x 4.1 x 2”)
Weight
380 g
MEASUREMENT PROCEDURE
1. Turn the meter on by pressing ON/OFF.
2. When the LCD displays “- - -”, the
meter is ready.
3. Fill the cuvet with 10 mL of sample, up
to the mark, and replace the cap.
4. Place the cuvet into the holder and
ensure that the notch on the cap is
positioned securely into the groove.
5. Press ZERO and “SIP” will blink on the
display.
6. After a few seconds the display will
show “-0.0-”. The meter is now zeroed
and ready for measurement.
7. For free chlorine measurement:
Add 3 drops of DPD 1 reagent to an empty cuvet.
▶
8. Add 5 mL of DPD 0 reagent by using a syringe.
9. Fill the cuvet up to the 10 mL mark with 5 mL of
unreacted sample using a pipette.
10. Replace the cap and shake gently for a few seconds.
DPD 1
x 3
11. Immediately insert the cuvet into the holder and
ensure that the notch on the cap is positioned
securely into the groove.
12. Press READ and “SIP” will blink
during measurement.
13. The instrument directly displays
concentration in mg/L of chlorine.
14. Then, for total chlorine measurement, remove the
cuvet and add to the reacted sample 3 drops of DPD
3. Replace the cap and swirl gently.
DPD 3
x 3
15. Reinsert the cuvet into the holder and
ensure that the notch on the cap is
positioned securely into the groove.
16. Wait for 2 minutes and 30 seconds
then press READ and “SIP” will blink
during measurement.
17. The instrument directly displays concentration in
mg/L of total chlorine.
Interferences
y
Bromine (positive error)
y
Chlorine dioxide (positive error)
y
Iodine (positive error)
y
Oxidized Manganese and Chromium (positive error)
y
Ozone (positive error)
y
Alkalinity above 250 mg/L CaCO3 or acidity above 150
mg/L CaCO3 will not reliable develop the full amount of
color or it may rapidly fade. To resolve this, neutralize
the sample with diluted HCl or NaOH.
2’30”
GUIDE TO DISPLAY CODES
This prompt appears for 1 second
each time the instrument is turned
on.
The dashes “- - -” indicates that the
meter is in a ready state and zeroing
can be performed.
Sampling In Progress. Flashing “SIP”
prompt appears each time the meter
is performing a measurement.
“-0.0-”, the meter is in a zeroed state
and measurement can be performed.
The blinking “BAT” indicates that the
battery voltage is getting low and the
battery needs to be replaced.
“-bA-”, the battery is dead and must
be replaced. Once this indication
is displayed, the meter will lock up.
Change the battery and restart the
meter.
“Conf”, the meter has lost its
configuration. Contact your dealer
or the nearest Milwaukee Customer
Service Center.
ERROR MESSAGES
On zero reading
y
Blinking “-0.0-” indicates that the
zeroing procedure failed due to a
low signal-to-noise ratio. In this
case press ZERO again.
y
“no L”, the instrument can not
adjust the light level. Please check
that the sample does not contain
any debris.
y
“L Lo”, there is not enough light to
perform a measurement. Please
check the preparation of the zero
cuvet.
y
“L Hi”, there is too much light to
perform a measurement. Please
check the preparation of the zero
cuvet.
10 ml
▶
