INFICON CMS5000 Monitoring System - Manual (Page 53)

5 - 9
IP
N 07
4-
50
8-
P1
C
CMS5000 Operating Manual
5.3 Calibrating the Water or Air Purge Methods
1 Both CMS5000 Water Purge and Air Purge methods requires calibration at
initial startup. Susbsequent calibrations may be performed as necessary.
NOTE: In the CMS5000 Water Purge method, the actual water temperature is
recorded during calibration-the CMS IQ software uses the Beta Value
to automatically compensate for the water sample temperature
fluctuations.
2 Refer to section 16.2, Using the Calibrate Function , and follow steps 1-11 to
prepare and run standards for the calibration.
NOTE: The water temperature of the calibration standards needs to be
uniform when creating water calibration methods.
3 Verify that the retention times of the analytes in the standard with the highest
concentration correspond to the retention times in the library template
associated with the method.
3a To select a peak, follow the instructions in section 12.8, How to Access the
Scan Cursor, on page 12-25 . See Figure 5-19 .
Figure 5-19 Selecting a Peak
4 The actual retention times should be within +/- 0.5 seconds of the library
retention times
5 Refer to section 16.2, Using the Calibrate Function , and follow steps 22-23.
6 Refer to section 16.2, Using the Calibrate Function , and follow steps 27-37.
7 Perform an initial calibration verification of the CMS5000 Water Purge method
by running the calibration standard at a concentration within the limits of the
calibration curve. See
Chapter 7, Operation , for information on running a
method.
8 Refer to section 16.3.6, View Reports , to access the report of the calibration
verification standard. Verify that the reported concentration is within 30% of the
actual concentration.