Hanna Instruments HI 98308 User Manual
PWT
HI98308
Pure Water Tester
with Automatic Temperature
Compensation
OPERATION:
• Remove the protective cap.
• Turn the
• Immerse it in the solution to be tested without
• Stir gently and wait for the reading
PWTPWT
PWT on.
PWTPWT
exceeding the maximum immersion level.
to stabilize.
PWTPWT
PWT automatically compensates for
PWTPWT
temperature variations.
HOW TO USE THE CHART:
• The following diagram shows the relation between conductivity (µS/cm) and NaCl concentration (mg/L) of a watery solution.
• The reading on display is directly expressed in
µS/cm unit.
CALIBRATION:
• Immerse the
solution, without exceeding the maximum immersion level.
• Allow the reading to stabilize and with a small
screwdriver turn the calibration trimmer until the
display shows "84.0".
PWT PWT
PWT in the HI70033 calibration
PWT PWT
BEPS AND BATTERY REPLACEMENT:
PWT PWT
PWT is supplied with BEPS (Battery Error Preventing
PWT PWT
System) which avoids any erroneous reading due to
low batteries level, by switching the meter off.
To replace the batteries, slide off the battery compartment cover and replace all four 1.5V batteries
while paying attention to their polarity.
Batteries should only be replaced in a nonhazardous
area using the battery type specified in this instruction
sheet.
ONE YEAR WARRANTY AND SERVICEABLE:ONE YEAR WARRANTY AND SERVICEABLE:
ONE YEAR WARRANTY AND SERVICEABLE:
ONE YEAR WARRANTY AND SERVICEABLE:ONE YEAR WARRANTY AND SERVICEABLE:
Covered by
manship and materials, this tester is now completely
serviceable. Contact your dealer for further information.
The
one yearone year
one year warranty against defects in work-
one yearone year
PWT PWT
PWT is in compliance with the CE directives.
PWT PWT
Manufacturers since 1978
Visit our Internet Home Page:
http://www.hannainst.com
PWT
HI98308
Pure Water Tester
with Automatic Temperature
Compensation
SPECIFICATIONS:
RANGE 0.0 99.9 µS/cm
RESOLUTION 0.1 µS/cm
ACCURACY (@20°C/68°F) ±2% f.s.
TYPICAL EMC DEVIATION ±2% f.s.
CALIBRATION Manual, at 1 point through trimmer
CAL. SOLUTION HI70033 (84.0 µS/cm)
TEMPERATURE 0 to 50C (32 to 122ºF)
COMPENSATION with ß=2%/C typical
ENVIRONMENT 0 to 50C (32 to 122F);
95% RH not condensing
BATTERY TYPE 4 x 1.5V alkaline (included)
BATTERY LIFE approx. 250 hours
of continuous use
DIMENSIONS 175 x 41 x 23 mm
(7.9 x 1.8 x 1")
WEIGHT 78 g (2.7 oz.)
ELECTRODE REPLACEMENT:
The electrode is built-in inside the plastic casing and
can be easily replaced in the following way:
• Slide off the battery cover.
• Remove the screw on the back of the
below the battery compartment and slide off the
whole internal part of the tester.
PWTPWT
PWT located
PWTPWT
Internal circuit:
• Fasten the screw on the back, below the
battery compartment.
ACCESSORIES:
HI 70033P 84 µS/cm calibration kit
(25 x 20 mL sachets)
HI 7033M 84 µS/cm calibration solution
(230 mL bottle)
HI 73308 Probe for PWT
HI 731326 Calibration screwdriver (20 pcs)
ISTPWTR1 07/01
• Replace the built-in electrode with a new
HI73308.
• Before reinserting the internal circuit into the
new plastic casing, make sure the O-rings (2)
of the temperature sensor (3) are properly
seated (see drawing).
To avoid bending the connections to the conductivity sensors (1), do not apply excessive
force while inserting the circuit. In case of any
problem, reslide and reinsert it.
• Reinsert the battery compartment cover.
• Recalibrate the
measurements.
PWTPWT
PWT before performing new
PWTPWT
Loading...