Hanna-instruments HI 931100 Manuale Utente Pagina 12
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2322
FC300B CONDITIONING & MAINTENANCE
PREPARATION
Remove the protective cap.
DO NOT BE ALARMED IF ANY
SALT DEPOSITS ARE PRESENT.
This is normal with sodium electrodes
and they will disappear when rinsed
with water.
During transport tiny bubbles of air
may have formed inside the glass
bulb. The electrode cannot function
properly under these conditions.
These bubbles can be removed by
"shaking down" the electrode as you
would do with a glass thermometer.
If the bulb and/or junction
are dry, soak the elec-
trode in HI 7081 (NaCl
30.0 g/L) solution over-
night before use with
HI931100. Soak it in
HI7086 (Na 23 g/L) solu-
tion overnight before use
with HI931101.
If the electrolyte solution
is more than 1cm (½")
below the filling hole, add
HI8093 1M KCl+AgCl
electrolyte solution.
Shift downwards the rub-
ber sleeve during mea-
surements and calibra-
tion.
SODIUM MEASUREMENT
Rinse the sodium electrode tip with
some of the sample to be tested,
then immerse the tip (approx. 2.5
cm /1") in the sample and stir gen-
tly.
• When the input value be-
comes stable, the " "
symbol disappears and
"CON" will start blinking.
Press the CFM key to confirm the calibration
value.
• Immerse the temperature
probe into the 50°C (122°F)
bath.
• Press the CAL key to dis-
play the "0.0°C" and then
press the BUF key to se-
lect "50.0°C". "CAL" and
"BUF" symbols. " "
symbol will blink for a few
seconds.
• When the input value be-
comes stable, the " "
symbol disappears and
"CON" will start blinking.
• Press the CFM key to confirm the calibration
value.
• The calibration is now complete.
• Turn the meter off and on again to return to the
normal mode.
°C
50°C
(122°F)
°C
CON
BUF
CAL
°C
°C
CON
- HI 931100 • HI 931101 1
- TAKING SODIUM MEASUREMENTS 5
- PROBE CONNECTION 5
- TEMPERATURE MEASUREMENTS 6
- AFTER USE 6
- TWO POINT CALIBRATION 8
- IONIC STRENGTH ADJUSTER (ISA) 10
- CHEESE AND MEAT (HI 931100) 10
- INITIAL PREPARATION 11
- Checktemp 11
- PROCEDURE 11
- TEMPERATURE 11
- PREPARATION 12
- SODIUM MEASUREMENT 12
- MAGNETIC STIRRER 13
- Na SOLUTIONS FOR HI 931101 14
- NaCl SOLUTIONS FOR HI 931100 14
- OTHER ACCESSORIES 15
- ChecktempC 15
- CE DECLARATION OF CONFORMITY 16
- MANNACLR2 08/05 17
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