Barnant Company 559-3800 Operating Manual - page 3
TABLE OF CONTENTS
Title
Page
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
OPERATING TIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Front Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
pH Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Temperature Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Cleaning the Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
PRODUCT RETURN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
TECHNICAL ASSISTANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Trademarks bearing the ® symbol in this publication
are registered in the U.S. and in other countries.
4
Battery Replacement
The pH meter uses a 9 volt battery with a life of 2000 hours. If the low bat-
tery indicator is on, stop operation and replace the internal battery with a
new 9 volt battery.
Cleaning the Probe
The glass bulb is the sensitive part of the probe; it should always be kept
clean. Rinse the probe with distilled water after use. Before storage, rinse
the probe with tap or distilled water, shake dry and place the probe in the
protective cap which should be filled with KCL solution or equivalent probe
storage solution.
If KCL or equivalent storage solution is not available, use a 4.00 pH buffer,
7.00 pH buffer or tap water.
CAUTION: Do not use distilled or deionized water for storing, under any
circumstance.
TROUBLESHOOTING GUIDE
Symptoms
Problem
Possible Solution
Meter will not
Defective pH probe,
1.Change buffer
calibrate or gives
bad buffer, or
2.Check chemical
erroneous readings
incompatible sample
compatibility
3.Replace pH probe
Unit gives slow
Dry electrode or
1.Clean the probe
response or erron-
clogged reference
2.Replace pH probe
eous readings
junction in pH probe
Meter will not
Defective pH probe
1.Change buffers
accept second
or bad buffer
2.Clean probe
buffer
3.Replace probe
Reading drift
Bad pH probe or
1.Clean probe
on display
incompatible sample
2.Check chemical
being measured
compatibility of
sample with probe
3.Replace probe
Lo Bat indicator is lit
Low battery
Replace battery