Справочник Пользователя для Hanna Instruments hi 98351
OPERATION:
• Remove the protec-
tive cap.
• Turn the DiST WP on
with the ON/OFF
switch located on the
top.
switch located on the
top.
• Immerse into the
sample without touch-
ing the bottom of the
beaker.
ing the bottom of the
beaker.
• Stir gently and wait until the dis-
play stabilizes. DiST WP com-
pensates for the temperature
automatically and variations on
the display can be due to the
temperature sensor adjusting to
the new environment.
pensates for the temperature
automatically and variations on
the display can be due to the
temperature sensor adjusting to
the new environment.
CALIBRATION:
The calibration procedure
is simple and fast.
is simple and fast.
• Immerse the tester into
the appropriate op-
tional Calibration Solu-
tion (see Specifica-
tions).
tional Calibration Solu-
tion (see Specifica-
tions).
• Allow the reading to stabilize and
using a small screwdriver turn
the Calibration Trimmer to match
the solution value (normally to the
value at 25°C).
the Calibration Trimmer to match
the solution value (normally to the
value at 25°C).
e.g. calibrating a DiST WP 1 using
HI 7032 as calibration solution, turn
the trimmer to read "1382".
HI 7032 as calibration solution, turn
the trimmer to read "1382".
Calibration is now complete.
BATTERY REPLACEMENT:
When the DiST WP cannot be
switched on or the display seg-
ments fade, use a
coin to remove the
battery compartment
cover located on the
top of the tester: it
will open with just a
1/4 turn. Remove the
cover with its O-ring and replace all
four batteries paying attention to their
polarity. Reinsert the cover with the
O-ring and close it with the coin. It
is recommended to recalibrate the
instrument whenever you replace
batteries.
switched on or the display seg-
ments fade, use a
coin to remove the
battery compartment
cover located on the
top of the tester: it
will open with just a
1/4 turn. Remove the
cover with its O-ring and replace all
four batteries paying attention to their
polarity. Reinsert the cover with the
O-ring and close it with the coin. It
is recommended to recalibrate the
instrument whenever you replace
batteries.
Batteries should only be replaced in
a safe area using the battery type
specified in this instruction manual.
a safe area using the battery type
specified in this instruction manual.
RECOMMENDATIONS FOR
USERS:
USERS:
Before using these products, make sure that they
are entirely suitable for the environment in which
they are used. Operation of these instruments in
residential areas could cause interference to radio
and TV equipment. The pins at the end of the sensor
are sensitive to electrostatic discharges. Avoid
touching these pins at all times. During operation of
instruments, ESD wrist straps should be worn to
avoid possible damage to the sensor by electrostatic
discharges. 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
60VDC. To avoid damage or burns, do not perform
any measurement in microwave ovens.
are entirely suitable for the environment in which
they are used. Operation of these instruments in
residential areas could cause interference to radio
and TV equipment. The pins at the end of the sensor
are sensitive to electrostatic discharges. Avoid
touching these pins at all times. During operation of
instruments, ESD wrist straps should be worn to
avoid possible damage to the sensor by electrostatic
discharges. 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
60VDC. To avoid damage or burns, do not perform
any measurement in microwave ovens.