8
OPERATIONAL GUIDEOPERATIONAL GUIDE
OPERATIONAL GUIDEOPERATIONAL GUIDE
OPERATIONAL GUIDE
Power connection
Plug the 12VDC adapter into the power supply socket (#10 on page
4; #11 on page 6).
Note: pH 212 and pH 213 use an EEPROM to retain the pH, mV
and temperature calibrations as well as the serial communica-
tion setting. The instrument will retain the data after a
calibration or serial communication setting, even when it is
unplugged.
Note:Note:
Note:Note:
Note: Make sure the main line is protected by a fuse.
Electrode and Probe connections
For combination pH or ORP electrodes (with internal reference)
connect the electrode's BNC to the socket on the back of the meter
(#11 on page 4; #12 on page 6).
For electrodes with a separate reference, connect the single cell
electrode's BNC to the BNC socket (#11 on page 4; #12 on page 6)
and the reference electrode plug to the reference socket (#12 on
page 4; #13 on page 6).
For temperature measurements and automatic temperature compen-
sation connect the temperature probe to the appropriate socket
(#13 on page 4; #14 on page 6).
Note: to prevent damage to the electrode, remove the pH electrode
from the solution before turning the meter off.
If the meter is OFF, detach the electrode from the meter before
immersing the electrode in the storage solution.
pH MEASUREMENTS
Make sure that the instrument has been calibrated before taking pH
measurements.
• Switch the instrument on by pressing the ON/OFF
switch.The meter automatically defaults to the pH mea-
surement mode.
• Submerge the tip (4cm/1½") of the elec-
trode and the temperature probe into the
sample to be tested. Allow time for the
electrode to stabilize.
4 cm
(1½")
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ORP PRETREATMENT SOLUTIONS
HI 7091L Reducing Pretreatment Solution, 460 mL
HI 7092L Oxidizing Pretreatment Solution, 460 mL
pH ELECTRODES
All electrodes part numbers ending in B are supplied with a BNC
connector and 1 m (3.3') cable, as shown below :
HI 1043B
Glass-body, double junction, refillable, combination pH electrode. Use:
strong acid/alkali.
HI 1053B
Glass-body, triple ceramic, conic shape, refillable, combination pH
electrode. Use: emulsions.
HI 1083B
Glass-body, micro, Viscolene, non-refillable, combination pH electrode.
Use: biotechnology, micro titration.
HI 1131B
Glass-body, single junction, refillable, combination pH electrode.
Use: general purpose.
120 mm
4.7"
12 mm
0.5"
9.5mm DIA
0.37"
"S" VERSION
HI 1043
120 mm
4.7"
12 mm
0.5"
"S" VERSION
HI 1053
120 mm
"
12 mm
0.5"
5 mm
0.2"
3 mm
0.12"
3.0 mm DIA
0.12"
HI 1083
120 mm
4.7"
12 mm
0.5"
9.5mm DIA
0.37"
"S" VERSION
HI 1131
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