IOP 006A.1
Effective Date: 1/09/2017
Page 4 of 4
unit.
2.
Launch SW109 and turn the logger on.
3.
SW109 and logger are in communication when the “LOG” icon on the SW109
menu is yellow. If not, click “COM Port” on the Configuration pull down menu
and make sure the appropriate COM port is selected (usually COM1) and the
baud rate matches the baud rate set on the logger (4800).
4.
Click the yellow “LOG” icon to download the logger data and save the file
(filename.ply).
VII.
Orion 9109WL Triode storage and maintenance
A.
Short-term storage (up to one week): Cover electrode with the protective cap containing
a small wad of cotton saturated in ph electrode storage solution (Orion 910001) or pH 4
buffer.
B.
Long-term storage (more than one week): Rinse off any salt deposits with distilled water.
Cover with protective cap containing a few drops of electrode storage solution (or ph 4
buffer).
C.
Before using after long-term storage, rinse off any salt deposits with distilled water.
Immerse in electrode storage solution for at least one hour.
D.
The electrode can be cleaned by soaking in pH 4 buffer. If this does not improve
performance, use the ph electrode cleaning kit (Orion 900020), following instructions in
the kit.
MAINTENANCE:
All sensors are shipped with the measuring end covered with a wetting cap. Sensors are stored in a pH 4
buffer solution when not in use. Vertical storage is recommended to prevent leakage of the buffer solution
from the wetting cap.
A number of other maintenance and troubleshooting procedures are described in the instrument and sensor
instruction manuals: Models 265A and 266S Waterproof and Intrinsically Safe Portable pH Meters
REFERENCE
Instruction manual for the Models 265A and 266S Waterproof and Intrinsically Safe Portable pH Meters
This procedure has been reviewed and approved by the undersigned representative of the U.S.
Fish and Wildlife Service
REVIEWED/APPROVED______________________________ DATE____________
Field Supervisor (U.S.)
Jessica M. Barber
Digitally signed by JESSICA
BARBER
Date: 2020.03.10 10:40:12
-04'00'
