®
pHep
Pocket-sized
pH Meter
OPERATION:
• Do not be alarmed if
white crystals appear
around the cap. This is
normal with pH electrodes and they dissolve
if rinsed with water.
• Remove the protective
cap and turn the pHep
pH
®
on.
• Immerse it in the sample
up to the maximum immersion level.
pH
• Stir gently and wait until
the display stabilizes.
• After use, rinse the electrode with water to minimize contamination.
• Store the electrode with
a few drops of storage
(HI 70300) or pH7 (HI
7007) solution in the protective cap.
• Always replace the protective cap after use.
DO NOT USE DISTILLED OR DEIONIZED
WATER FOR STORAGE PURPOSES.
• Large differences in pH readings
(±0.5 pH) could be due to lack of
calibration, dry electrode or rundown batteries.
CALIBRATION:
The calibration procedure is
pH
simple.
• Immerse the tester up to
the maximum level in pH 7
buffer (HI 7007).
HI 7007
HI 70300
• Allow the reading to stabilize and
using a small screwdriver turn the
pH 7 Calibration Trimmer to read 7.0.
Calibration is now complete.
ALWAYS USE FRESH BUFFERS FOR
CALIBRATION & NEVER REUSE THEM.
BATTERY REPLACEMENT:
When the pHep® cannot
be switched on or the display fades, pull out the bat-
BATTERIES
tery compartment and replace all three 1.5V batteries, paying attention to their
polarity.
Batteries should only be
replaced in a non-hazardous area using the battery
types specified in this instruction manual.
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 areas could cause
unacceptable interferences to radio and TV equipment.
The glass bulb at the end of the pH electrode is sensitive
to electrostatic discharges. Avoid touching this glass
bulb at all times. During operation of instrument, ESD
wrist straps should be worn to avoid possible damage to
the pH 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 24 VAC or 60 VDC.
To avoid damages or burns, do not perform any
measurement in microwave ovens.
+
-
pHep
®
Pocket-sized
pH Meter
SPECIFICATIONS:
RANGE 0.0 to 14.0 pH
RESOLUTION 0.1 pH
ACCURACY ±0.1 pH
(@20°C/68°F)
TYPICAL EMC DEV. ±0.2 pH
ENVIRONMENT 0 to 50°C
BATTERIES 3 x 1.5V alkaline
LIFE approx.700 hours of use
DIMENSIONS 150x30x24 mm
WEIGHT 85 g (3 oz.)
ACCESSORIES:
HI 77700P Calibration kit pH 7.01
HI 7007L Buffer solution pH 7.01
HI 7007M Buffer solution pH 7.01
HI 70300L Storage solution (460mL)
HI 70300M Storage solution (230 mL)
(32 to 122°F);
RH 95% non-condensing
(5.9x1.2x0.9")
(10 x 20 mL sachets)
(460 mL)
(230 mL)
pHep® is a registered Trademark of "Hanna Instruments"
Visit our Internet Home Page:
http://www.hannainst.com
Authorized Dealer
ISTRPHEPR1
08/01
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