Справочник Пользователя для Hanna Instruments hi 98202
SPECIFICATIONS:
RANGE
RANGE
0.0 3.0 pNa (23 0.023 g/L Na
+
)
RESOLUTION
0.1 pNa
ACCURACY
(@20°C/68°F)
±0.2 pNa
TYPICAL EMC DEVIATION ±0.1 pNa
ENVIRONMENT
ENVIRONMENT
0 to 50 C (32 to 122 F); 95% RH
BATTERY TYPE
4 x 1.5V alkaline (included)
BATTERY LIFE
approx. 800 hours of continuous use
DIMENSIONS
175x41x23 mm (7.9x1.8x1")
WEIGHT
78 g (2.7 oz.)
IS98202R3 05/01
ACCESSORIES:
HI 7080L
2.3 g/L Na solution (460 mL bottle)
HI 7080M
2.3 g/L Na solution (230 mL bottle)
HI 7061M
Electrode cleaning solution
(230 mL bottle)
(230 mL bottle)
HI 73202
Spare electrode
HI 731326
Calibration screwdriver (20 pcs)
• Fasten first the screw on the front (1) to
attach the electrode to the circuit. Insert the
two small wires into their sockets and fasten
the two screws (2 & 3).
two small wires into their sockets and fasten
the two screws (2 & 3).
• The new electrode is supplied with four O-rings
(4). Make sure they are placed properly before
reinserting the circuit into the plastic casing.
reinserting the circuit into the plastic casing.
• Reinsert the internal circuit complete with the
new electrode into the plastic casing.
• Fasten the screw on the back, below the
battery compartment.
• Reinsert the battery compartment cover.
• Recalibrate the pNa
• Recalibrate the pNa
pNa
pNa
pNa
pNa before performing new
measurements.
pNa
HI98202
Soft Water Tester
CALIBRATION:
• Immerse the tester in
• Immerse the tester in
HI7080 calibration solution,
without exceeding the maxi-
mum immersion level.
mum immersion level.
• Allow the reading to stabi-
lize and with a small screw-
driver turn the calibration
trimmer until the display
shows "
driver turn the calibration
trimmer until the display
shows "
1.0
" pNa.
MAINTENANCE:
In case of erroneous reading even after an accurate
calibration, the reference junction can be contami-
nated or clogged.
Pull out 2 mm (1/8'') of the cloth junction to renew
the electrode reference (it is recommended to cut the
cloth leaving always at least 2 mm -1/8'' over the
reference compartment) and repeat the calibration
procedure.
The cloth junction can be
pulled out approximately 20
times. After that, the elec-
trode can be replaced (see
the Electrode Replacement
section).
In case of erroneous reading even after an accurate
calibration, the reference junction can be contami-
nated or clogged.
Pull out 2 mm (1/8'') of the cloth junction to renew
the electrode reference (it is recommended to cut the
cloth leaving always at least 2 mm -1/8'' over the
reference compartment) and repeat the calibration
procedure.
The cloth junction can be
pulled out approximately 20
times. After that, the elec-
trode can be replaced (see
the Electrode Replacement
section).
BATTERY REPLACEMENT:
If display fades or the pNa
If display fades or the pNa
pNa
pNa
pNa
pNa switches off, the batteries
must be replaced. Slide off the battery compartment
cover and replace all four 1.5V batteries while
paying attention to their polarity.
cover and replace all four 1.5V batteries while
paying attention to their polarity.
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 one year
Covered by one year
one year
one year
one year
one year warranty against defects in work-
manship and materials, this tester is now completely
serviceable. Contact your dealer for further information.
serviceable. Contact your dealer for further information.
The pNa
pNa
pNa
pNa
pNa is in compliance with the CE directives.
Visit our Internet Home Page:
http://www.hannainst.com
Internal circuit:
ELECTRODE REPLACEMENT:
The electrode can be easily replaced in the following
way:
• Slide off the battery cover.
• Remove the screw on the back of the pNa
The electrode can be easily replaced in the following
way:
• Slide off the battery cover.
• Remove the screw on the back of the pNa
pNa
pNa
pNa
pNa located
below the battery compartment and slide off the
whole internal part of the tester.
whole internal part of the tester.
• Remove the fastening screw on the front (1) to
loose the electrode.
The internal circuit is connected to the elec-
trode trough two wires (one for the glass
sensor and one for the reference). Remove the
two small screws (2 & 3) which
fasten the two connecting wires to
their sockets.
trode trough two wires (one for the glass
sensor and one for the reference). Remove the
two small screws (2 & 3) which
fasten the two connecting wires to
their sockets.
• Remove the electrode and replace
it with a new
HI73202.