Teledyne M300EM operation manual Mode And, Value, Comment, Zero-Span, Sept. 4, 30.0

Calibration Procedures Teledyne API – Technical Manual - Model 300E Family CO Analyzers

The following example sets sequence #2 to do a zero-span calibration every other day starting at 2:15 PM on September 4, 2008, lasting 15 minutes, without calibration. This will start ½ hour later each iteration.

Table 9-4: Example AutoCal Sequence

MODE AND	VALUE	COMMENT
ATTRIBUTE
SEQUENCE	2	Define Sequence #2
MODE	ZERO-SPAN	Select Zero and
		Span Mode
TIMER ENABLE	ON	Enable the timer
STARTING DATE	Sept. 4, 2008	Start after
		Sept 4, 2008
STARTING TIME	14:15	First Span starts at
		2:15 PM
DELTA DAYS	2	Do Sequence #2
		every other day
DELTA TIME	00:30	Do Sequence #2 ½
		hr later each day
DURATION	30.0	Operate Span valve
		for 15 min
CALIBRATE	ON	Calibrate at end of
		Sequence

NOTE

The programmed STARTING_TIME must be a minimum of 5 minutes later than the real time clock for

setting real time clock (See Section 6.5.4).

Avoid setting two or more sequences at the same time of the day. Any new sequence that is initiated whether from a timer, the COM ports or the contact closure inputs will override any sequence that is in progress.

NOTE

With CALIBRATE turned ON, the state of the internal setup variables DYN_SPAN and DYN_ZERO is set

to ON and the instrument will reset the slope and offset values for the CO response each time the

AutoCal program runs.

This continuous readjustment of calibration parameters can often mask subtle fault conditions in the analyzer. It is recommended that, if CALIBRATE is enabled, the analyzer’s test functions, slope and offset values be checked frequently to assure high quality and accurate data from the instrument.

200 04288D DCN5752