Teledyne T100, Instruction Manual, Page: 44 / 404

Getting Started
Teledyne ML - T100 UV Fluorescence SO2 Analyzer
44
3.4.3. CONNECTING ANALOG OUTPUTS
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
2
concentration of the sample gas. Either can be used for
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
2
or CO
2
sensor is installed.
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.
ANALOG OUT
A1 A2 A3 A4
+ - + - + - + -
Figure 3-7: Analog Output Connector
Table 3-6: Analog Output Pin Assignments
PIN ANALOG OUTPUT VOLTAGE SIGNAL CURRENT SIGNAL
1
A1
V Out I Out +
2 Ground I Out -
3
A2
V Out I Out +
4 Ground I Out -
5 A3
(Only used if an
optional O
2
or CO
2
sensor is installed)
V Out I Out +
6 Ground I Out -
7
A4
V Out I Out +
8 Ground I Out -
3.4.4. CURRENT LOOP ANALOG OUTPUTS (OPTION 41) SETUP
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.