4
Calibration
This chapter describes the procedure for calibrating your
instrument. If you have questions or problems regarding
the calibration procedure, please consult Chapter 5 —
Troubleshooting & Service.
Calibrating the 4C3 is accomplished simply by loading five
samples each of two standards in a sample tube cassette and
initiating calibration as described below.
When the 4C3 has acceptably completed five calibration tests
at each level, it will calculate and store the mean of the raw
results of the closest tests. Then, if allowed, it performs the
necessary calculations and calibrates the output accordingly.
CAUTION If a power interruption occurs during calibration,
turn the instrument off at once and remove any
sample tube that may be on the operating head.
After power has been restored, leave the instru-
ment turned off for at least 5 seconds to ensure
internal circuitry is restarted properly, even if
power restoration is immediate. Start again with
fresh samples.
Place the supervisor/operator keyswitch in the
supervisor (vertical) position. Two calibration
choices are available, determined by how calibra-
tion is initiated:
1. Using the CALIB button:
When “CALIB” is pressed at “Cryoscope Ready”,
the 4C3 will respond with “[START] Ready?”. At
47
To Next Page
Loading...
Need help?
General
