Roche cobas Urisys 1100 - 4.5 Changing the Range Limits

Roche Diagnostics
Urisys 1100® · ≥5.7 · Operator's Manual · 9.0
22 4. Software
4.5 Changing the range limits
The reflectance range limits for the lower concentration
intervals can be altered to a limited extent for all test
parameters except SG (specific gravity) and pH.
To change the range limits, choose RANGE LIMITS and
press the left function key (New). The lowest interval for
the first parameter is displayed next to the current range
limit setting. Through the keys (+ / - ), the reflectance
value can be raised or lowered and evaluation sensitivity
thus increased or decreased.
If the first positive concentration level is to be eliminated,
the reflectance range limits of the negative/normal range
can be lowered manually, and the reflectance range limit
of the first positive concentration interval raised to this
reflectance value.
Pressing Next stores that setting and moves to the next
concentration interval or the next parameter.
The sequence can be terminated at any point by pressing
the START button. The new range limits are printed out
together with a date and timestamp and the analyzer
resumes Ready-to-Measure status. All changes made to
the limits are flagged with an asterisk on the printout
after the concentration interval.
Pressing the Default key in the RANGE LIMITS display
window reinstates the factory defaults and causes them
to be printed together with a date and timestamp.
If range limits have been altered manually, all results are
printed with an asterisk in the line below the device ID.
CAUTION:
The correctness of results obtained after the user
has altered the reflectance values is not warranted
by Roche Diagnostics. The user is responsible for
validating the consistency of results after changes
have been made.