Thermo Fisher Scientific pHScan 3/3+ - Manual (Page 3)

• Waterproof & F loats
• Replaceable Double
Junction Electrode
• Temperature Display
• NIST or USA Buffer
Selection
Open this leaflet for calibration/testing/maintenance
instructions.
Electrode Maintenance
• Rinse the electrode with tap water or electrode
storage solution after each measurement.
• Periodic soaks in warm pH 4.01 buffer will
help remove contaminants.
• If possible, keep a small piece of paper or sponge
in the electrode cap – moistened with clean water
or electrode storage solution (NOT deionized
water) and close the cap over the electrode.
When you need a new electrode, see “Electrode
Replacement” on insert in back of box.
Changing Batteries
1. Open battery
compartment
l i d ( w i t h
a t t a c h e d
lanyard loop).
2. Remove old
b a t t e r i e s ;
r e p l a c e
with fresh
ones. Note
polarity (shown in Diagram 1)
Self-Diagnostic Messages
bAt Weak batteries – replace with fresh ones
specified by manufacturer.
Er1 Wrong or bad buffer value, or electrode is not in
contact with solution, or electrode is failing.
Or, Ur Over range / under range signal, or electrode
is not in contact with solution, or electrode is failing.
Warranty
Eutech Instruments warrants its meter free from
manufacturing defects for 2 years and electrode
module for 6 months. If repair, adjustment or
replacement is necessary and has not been the result
of abuse or misuse within the time period, please
return the tester – freight prepaid – and correction
will be made without charge. Out of warranty products
will be repaired on a charge basis.
Return Of Items
Authorization must be obtained from Eutech’s
distributor before returning items for any reason.
When applying for authorization, please include
information regarding the reason the item(s) are to
be returned.
Note: We reserve the right to make improvements in
design, construction and appearance of products
without notice. Prices are subject to change without
notice.
+
Diagram 1