User Guide

Skincheck Skincheck Skincheck Skincheck
Calibration
• Dip the tip of the elec-
trode (2cm/1") of
Skincheck in a sample
of pH 7.01 buffer
(from HI774P Calibra-
tion Kit ). Allow the
reading to stabilize.
• Use a small screw-
driver to adjust the pH
7 trimmer until the
display reads
"7.01 ".
• Rinse the electrode
with water and dip it
in a sample of
pH 4.01. Allow the
reading to stabilize.
• With a small screw-
driver adjust the
pH 4/10 trimmer un-
til the display reads
"4.01 ".
• Calibration is now
complete.
ALWAYS USE FRESH
BUFFERS FOR CALIBRATION &
NEVER REUSE THEM.
Battery Replacement
Replace the battery when the dis-
play fades or Skincheck cannot be
switched on or segments are
missing.
Remove the battery
cover on the back
of the meter. Insert
2 new 1.4V batter-
ies while paying at-
tention to their polarity.
Battery replacement must only
take place in a non hazardous
area using the battery types
specified in this instruction
manual.
Accessories
HI 1413S/50 Glass-body, flat tip,
combination pH
electrode, Viscolene,
12 mm diameter
with screw-type con-
nector (for Skincheck)
HI 1413B/50 Glass-body, flat tip,
combination pH
electrode, Viscolene,
12 mm diameter,
BNC connector with
1m (3.3') cable (for
Skincheck1)
HI 774P Calibration kit
pH7.01 & pH4.01
(30 ml ea.), with
screwdriver
HI 7004L Buffer solution
pH 4.01 (460 ml)
HI 7007L Buffer solution
pH 7.01 (460 ml)
HI 70300L Storage solution
(460 ml)
HI 76504/P2 2x1.4V batteries
Recommendations for Users
Before using this product, make sure that it is entirely
suitable for the environment in which it is used.
Operation of this instrument in residential area could
cause unacceptable interferences to radio and TV equip-
ments, requiring the operator to take all necessary
steps to correct interferences. The glass flat tip at the
end of the electrode is sensitive to electrostatic dis-
charges. During operation, ESD wrist straps should be
worn to avoid possible damage to the electrode by
electrostatic discharges. Any variation introduced by
the user to the supplied equipment may degrade the
instrument's EMC performance. To avoid electrical
shock, do not use this instrument when voltages at the
measurement surface exceed 24VAC or 60VDC. To
avoid damages or burns, do not perform any measure-
ment in microwave ovens.
ISTRSKIN 10/96
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