EUTECH INSTRUMENTS WATERPROOF PHTESTR 1 PH TESTER Instruction Sheet page 3

Twist-off
Battery
Compartment
Lanyard
Connection
S P E C I F I C A T I O N S
Model pHTestr 1, 2
pH Range -1.0 to 15.0 pH
Resolution 0.1 pH
Accuracy pHTestr 1 : ± 0.2 pH
pHTestr 2 : ± 0.1 pH
ATC Yes (Except pHTestr 1)
Calibration pHTestr 1 :
1-point (4.0, 7.0 or 10.0)
pHTestr 2 :
3-point (4.0, 7.0 & 10.0)
Auto Power- Yes
Off/Hold
Auto-Buffer Yes (pH 4, 7, & 10)
Recognition
Battery Life 3 x 1.4V (Type: A 76,
LR44, V13GA) ; >60 hours
Dimension/ Tester : 15 x 3.8 cm ; 90g
Weight Boxed : 18.5 x 7 x 5 cm ; 170g
Eutech Instruments
Oakton Instruments
www.eutechinst.com
www.4oakton.com
Made in Malaysia
68X247809 2/05 Rev 3
Amplified
Electrode
Replaceable
Sensor
(Picture A)
REMOVE THE OLD ELECTRODE
Rotate collar away from you
Rubber
Gripper
Band
Ribbed Collar
(Picture B)
REPLACE THE ELECTRODE
Small O-Ring
Replacement
(Hidden)
Electrode
Insert Electrode
Small Tabs
ELECTRODE REPLACEMENT:
benefits in selecting the Waterproof pH
tester is that you can now replace the
electrode whenever needed keeping the
body of the tester intact. When the tester
fails to calibrate, gives fluctuating readings
in buffers, or shows error messages 'E2'
or 'OR' in a buffer, and the procedures in
the maintenance section do not help,
you need to change the electrode (see
pictures for instructions).• With dry hands
firmly grip the ribbed collar (Picture A)
and slowly twist the body counter
clockwise until it is completely removed.
Save both the electrode module collar
and O-ring inside for later use. Pull the
old electrode module straight out from
the bottom of the tester • Align the four
tabs on the new module so they match
the four slots on the tester (Picture B).
Note: Older testers may have only two
slots. In this case, break off the two small
tabs using a needle-nose pliers • Gently
push the module onto the bottom end to
fully seat it in position. Put the small O-
ring all the way into the ribbed collar.
Then push the collar on over the module
and hand-tighten by firmly twisting it
clockwise.
Large O-Ring
Large Tab
One of the