INSTRUCTION
MANUAL
CD97
TDS Tester
www.milwaukeeinst.com
OPERATING
• Remove the
protection cap.
• Turn the CD97 on
with the ON/OFF
switch located on the
top.
• Immerse into solution
up to the maximum
immersion level without
touching the bottom of
the beaker.
• Stir gently and wait
until the display
stabilizes.
CD97
compensates for the
temperature variance
automatically.
• Read the value on the
display.
CALIBRATION
• The calibration
procedure is very
simple and
fast.
• Immerse
the tester up
to the
maximum
level into the
appropriate
optional
calibration
solution
M10080
corresponding to 800
ppm.
• Allow the displayed
value to stabilize.
• Pull out the battery
compartment and
locate the calibration
trimmer on the top of
the internal circuitry.
• By turning the
calibration trimmer with
a small screwdriver,
adjust the reading to
match the solution
value of 800 ppm
(normally to the value
at 25°C). Replace the
battery compartment in
the original position.
• Calibration is now
complete.
BATTERY
REPLACEMENT
When the
CD97
cannot be
switched on or
the display
fades, pull out
the battery
compartment
and replace all
three 1.5V batteries,
paying attention to their
polarity. Batteries
should be replaced in a
non-hazardous area
using the battery types
specified in this
instruction manual.
RECOMMENDATIONS FOR
USERS
:
Before using this product, make
sure that it is entirely suitable for
the environment in which it is used.
Operation of this instrument in
residential area could cause
unacceptable interferences to radio
and TV equipments, requiring the
operator to take all necessary steps
to correct interferences.
The glass bulb at the end of the pH
electrode is sensitive to
electrostatic discharge. Avoid
touching this glass bulbat all times.
During operation of instrument,
ESD wrist straps should be warn to
avoide possible damage to the pH
electrode by electrostatic
discharge. Any variation introduced
by the user to the supplied
equipment may degrade the
instrument’s EMC performance. To
avoid electrical shock, do not use
this instrument when voltages at the
measurement surface exceed 24
VAC or 60 VDC. To avoid damages
or burns, do not perform any
measurement in microwave ovens.
SPECIFICATIONS
Range
0 to 999 ppm
Resolution
1
ppm
Accuracy
±10 ppm
Temperature
automatic,
Compensation
from
5
to
50°
Environment
0 to 50°C
Battery Type
4x1.5V
alkaline
Battery life
150
hours
Dimensions
150x30x24 mm
Weight
85 g
