Bravo pH Monitoring System 17 User Guide
chapter.fm 3/21/16 4:05 pm
5.5 x 7.75 inches (140 mm x 197 mm)
12. Make sure that the capsule is completely covered with the buffer solution. Gently
agitate the capsule to remove any air bubbles.
13. On the recorder, press
Start
. The recorder starts searching for the capsule’s signal.
This message appears:
Waiting for pH capsule 1.
14. When the recorder identifies the capsule, this message appears:
Does this pH
capsule ID number match the delivery device number?
• The capsule ID is printed on the packaging label. If the ID matches, press
Yes
. If
not, press
No
and the search begins again.
• If the recorder still does not recognize the capsule or displays an error message,
repeat the procedure. If the problem persists after three attempts, see Recorder
Troubleshooting on page 32.
15. Press
Yes
. This message appears:
Initiating 10 minute pre-soaking.
When the pre-soak period ends (or is canceled by pressing
Skip
), this message
appears:
pH 7.01 calibrating.
At the end of this calibration period, the recorder beeps and this message appears:
Rinse the pH capsule in sterile water and press Next.
16. Rinse the capsule in sterile water. Press
Next
. This message appears:
Place capsule
#1 in pH 1.07 and press Start to calibrate.
17. Place the capsule in the pH 1.07 solution and press
Start
.
Caution
When placing the capsule into the calibration tube, do not allow either
part of the pH sensor (the short silver-colored antimony and long clear
reference sensor) to catch on the edge of the calibration tube, as this
can damage the pH sensor. Avoid the tube edge while carefully
lowering the capsule into the solution. Any damage to the pH sensor
will require the delivery device to be discarded before use.
Caution
After agitating to remove air bubbles, do not move the capsule again or
move the calibration stand during the calibration process.
Note
If you press Skip, the recorder goes directly to the next step, and the
action (skipping pre-soak) is written to the recorder log.
If you did not skip (that is, if you pressed Yes), the backlight goes out.
It automatically turns back on at the end of the 10 minute pre-soak
period.
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