Teledyne 300M - Manual (Page 57)

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
5 DIAGNOSTICS
The Teledyne API Carbon Monoxide analyzer contains two levels of diagnostics: test
measurements which can be viewed at all times (except when in setup) by pressing TEST, and
lower level diagnostic operations which can only be performed by pressing SETUP-MORE-
DIAG.
5.1 Test Measurements
As stated, test measurements can be viewed at any time except when in setup. To view a
different test measurement, simply press the TEST button. Table 2-3 lists the test measurements
that are available. Viewing these test measurements does not interfere with the operation of the
Model 300M or the Carbon Monoxide reading in any way, so they may be viewed freely.
NOTE
If the value of any test function is displayed as “XXXX”, this
indicates that the reading is off scale or otherwise non-valid.
Additionally, the values of most TEST functions can be output as an analog voltage at the
instrument's rear panel (see Figure 1-3). The TEST function to be output is selected by pressing
SETUP-MORE-DIAG. Press NEXT until TEST CHANNEL OUTPUT appears. Press ENTR.
Select test channel function and press ENTR. Table 5-1 lists the Test functions available for
analog output.
In addition to outputting a value to the analog output channel, these tests activate a new test
measurement which displays the analog voltage reading on the front panel as:
TEST=XXXXX.X MV
When you exit the diagnostics, this test measurement is removed.
5-1