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Getting Started
3.4.3. CONNECTING ANALOG OUTPUTS
3.4.4. CURRENT LOOP ANALOG OUTPUTS (OPTION 41) SETUP
44
The T100 is equipped with several analog output channels accessible through a
connector on the rear panel of the instrument. The standard configuration for these
outputs is mVDC. An optional current loop output is available for each. (Section 3.4.4).
When the instrument is in its default configuration, channels A1 and A2 output a signal
that is proportional to the SO
connecting the analog output signal to a chart recorder or for interfacing with a
datalogger.
Output A3 is only used on the T100 if the optional O
Channel A4 is special. It can be set by the user (refer to Section 4.8.10) to output any
one of the parameters accessible through the <TST TST> buttons of the unit's sample
display.
To access these signals attach a strip chart recorder and/or data-logger to the appropriate
analog output connections on the rear panel of the analyzer.
Table 3-6: Analog Output Pin Assignments
PIN
ANALOG OUTPUT
1
2
3
4
5
(Only used if an
optional O
6
sensor is installed)
7
8
If your analyzer had this option installed at the factory, there are no further connections
to be made; . The current loop option can be configured for any output range between 0
and 20 mA. Section 4.8.4.5 provides information on calibrating or adjusting these
outputs.
This section provides instructions for setting up the analog outputs for voltage and/or
current output. Figure 3-8 provides installation instructions and illustrates a sample
combination of one current output and two voltage outputs configuration.
Teledyne ML - T100 UV Fluorescence SO2 Analyzer
concentration of the sample gas. Either can be used for
2
ANALOG OUT
A1
A2
A3
+
-
+
-
+
Figure 3-7: Analog Output Connector
VOLTAGE SIGNAL
V Out
A1
Ground
V Out
A2
Ground
A3
V Out
or CO
Ground
2
2
V Out
A4
Ground
or CO
sensor is installed.
2
2
A4
-
+
-
CURRENT SIGNAL
I Out +
I Out -
I Out +
I Out -
I Out +
I Out -
I Out +
I Out -
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