Control Company 4079 CONDUCTIVITY PROBE - Manual

CONDUCTIVITY PROBE INSTRUCTIONS
SPECIFICATIONS
Glass diameter: 0.472 inches (12 mm)
Glass length: 4.75 inches (120 mm)
Weight: 3.1 ounces (88 grams)
Cable length: 72 inches (183 cm)
Range: 0.05 micromhos to 200,000
micromhos
Constant K factor: 1
Temperature
compensation: Automatic with
internal thermistor
Solution contact
construction: Glass and Platinum (guard —
acrylic with rubber O-rings)
FEATURES
• Small cell sample volume, only 30 milliliters
are required, allow analysis of semimicro
samples and expensive specimens.
• Probe designed so that the platinum elec-
trodes may be easily accessed for cleaning,
examination or replating.
• Probe with a plastic guard to help prevent
breakage.
• Close tolerance cell construction to control
the K factor.
• Small glass mass cell designed to reduce
electrical leakage paths and eliminate extra-
neous readings.
• Probe with a computer-designed shape to
eliminate error-causing air bubbles.
RESULTS
All platinum and glass construction providing vastly
superior results when compared to plastic probes.
Plastic probes leach contaminants/mold released
into samples and develop micro fractures which
trap materials and contribute to cross sample
contamination. Plastic probes also entrap air
bubbles, obscure viewing the sensing element and
require a greater sample volume.
OPERATION
Do not use the acrylic guard for critical analysis,
research analysis, or when measuring extremely
pure water. Remove the guard by sliding it down
and off the glass probe. (A new probe may require a
moderate amount of force to slide it off.) Use the
guard for routine quality control, when critical analy-
sis is not required, and for storage. The guard
reduces the sensitivity of the probe by limiting the
electrical field measurement.
BE CONSISTENT
If you standardize using a known calibration solu-
tion with the guard on, then measurements must be
made with the guard on.
If you standardize with the guard off, then measure-
ments must be made with the guard off.
CLEANUP AND STORAGE
Always rinse the probe after using with deionized/
distilled water and replace the acrylic guard before
storing. Sample solutions that are allowed to dry on
the probe will eventually block out active sites on the
platinum electrodes.
CONDUCTIVITY PROBE STORAGE SOLUTION
Redi-Stor TM is the ideal solution for storing con-
ductivity probes. It preserves probe’s cleanliness, it
eliminates growths found when storing in only water,
and it maintains the probe for immediate use with no
conditioning. Cat. No. 4170 Redi-Stor TM Probe
Storage Solution 16-ounce bottle.
WARRANTY OR SERVICE
For warranty or service contact:
CONTROL COMPANY
4455 Rex Road Friendswood, Texas 77546 USA
Ph. 281-482-1714 Fax 281-482-9448
E-mail [email protected]
www.control3.com
Control Company is ISO 9001 Quality-Certified by DNV and ISO 17025 accredited as a Calibration Laboratory by A2LA
Cat. No. 4079
Conductivity Probe Instructions
92-4079-00
Rev. 1 071504
© 2004 Control Company