Filter
Top Products
T400 Ozone Analyzer Operator’s Manual EPA Protocol Calibration
209
Any repairs which might affect its calibration.
Physical relocation of the T400.
Any other indication (including excessive zero or span drift) of possible
significant inaccuracy of the unit.
Following any of the activities listed in above, perform Level 1 zero and span checks to
determine if a calibration is necessary. If the zero and span drifts do not exceed the
calibration limits in Section 2.0.9 Q.A. Manual (Ref. 11) (or limits set by the local
agency), a calibration need not be performed.
10.1.6. DATA RECORDING DEVICE
Either a strip chart recorder, data acquisition system, digital data acquisition system
should be used to record the data from the T400 RS-232 port or analog outputs. If
analog readings are being used, the response of that system should be checked against a
NIST referenced voltage source or meter. Data recording device should be capable of
bi-polar operation so that negative readings can be recorded. Strip chart recorder should
be at least 6” (15 cm) wide.
10.1.7. RECORD KEEPING
Record keeping is a critical part of all quality assurance programs. Standard forms
similar to those that appear in this manual should be developed for individual programs.
Three things to consider in the development of record forms are:
1. Does the form serve a necessary function?
2. Is the documentation complete?
3. Will the forms be filed in such a manner that they can easily be retrieved when
needed?
06870C DCN6332