6
INITIAL PREPARATION
The meter is supplied complete with batteries. Remove the back cover,
unwrap the batteries and install them while paying attention to their
polarity (see page 15).
To prepare the instrument for use, connect the pH electrode and the
temperature probe to the BNC and temperature sockets on the top of
the instrument. The temperature probe is used in conjunction with
the pH electrode to utilize the meter's ATC capability, but it can also
be used independently to take temperature measurements. If the
probe is disconnected, temperature can be set manually with the UP
and DOWN arrow keys (see page 7 for details).
Turn the instrument ON by pressing ON/OFF.
At start-up the display will show all the used segments for a few seconds
(or while the button is held), followed by the percentage indication of the
remaining battery charge, then enters measurement mode.
After measurement switch the meter off, clean the electrode and store it
with a few drops of
HI 70300
storage solution in the protection cap.
The auto-off feature turns the meter off after 20 minutes with no
button pressed to save battery life. To disable this feature, see Setup
Menu section on page 9.
pH MEASUREMENTS
To take a pH measurement remove the elec-
trode protective cap and simply submerge
the tip (4cm/1½") of the electrode and the
temperature probe into the sample to be tested.
If necessary, press the RANGE key until the
display changes to the pH mode.
Allow for the electrode to adjust and reading
to stabilize (hourglass symbol turns off).
The LCD will show the pH measurement
together with the temperature of the sample.
OPERATIONAL GUIDE
23
HI 1330B
Glass-body, semimicro, single junction, refillable, combination
pH
electrode.
Use: laboratory, vials.
HI 1331B
Glass-body, semimicro, single junction, refillable, combination
pH
electrode.
Use: flasks.
HI 1230B
Plastic-body (Ultem
®
), double junction, gel-filled, combination
pH
electrode.
Use: general, field.
HI 2031B
Glass-body, semimicro, conic, refillable, combination
pH
electrode.
Use: semisolid products.
HI 1332B
Plastic-body (Ultem
®
), double junction, refillable, combination
pH
electrode.
Use: general purpose.
120 mm
4.7"
5mm
0.2"
5mm DIA
0.2"
HI 1310
"S" VERSION
HI 1330
120 mm
4.7"
12 mm
0.5"
HI 1210
"S" VERSION
HI 1230
75 mm
2.95"
6 mm
0.25"
HI 2020
"S" VERSION
HI 2031
120 mm
4.7"
12 mm
0.5"
HI 1312
"S" VERSION
HI 1332
210 mm
8.25"
8 mm
0.3"
7.5mm DIA
0.29"
HI 1311
"S" VERSION
HI 1331