Instruction manual

SM425 INSTRUCTION MANUAL 9.0 CALIBRATION
1. The calibration interval must not be shorter than the sum of the hold time and the Csl time (or
twice the Csl time for a two-point calibration).
2. If the calibration start time occurs during a manual or semi-automatic calibration cycle, the
automatic calibration will not start.
3. If the calibration time conflicts with maintenance service or blowback operations, calibration will
start after completing the maintenance service or blowback operations (see Section 1.46.1,
earlier in this manual).
4. If the calibration interval is set for 000 days and 00 hours, only one automatic calibration will
occur.
5. Only present or future dates and times can start an automatic calibration.
9.2.2 Default Calibration Settings
The calibration settings shown in Table 9-2 are the default settings when the analyzer is delivered or data
is reinitialized.
Table 9-2 Default Settings for Calibration
9.2.3 Calibration Procedures
9.2.3.1 Manual Calibration
For manual calibration, see Section 1.44, “Calibration”.
Before conducting a semi-automatic or automatic calibration, run the automatic calibration unit
beforehand to obtain a calibration flow of 600 ± 60 ml/min.
150 42500001 REV A