Teledyne T802 - page 35

Teledyne API T802 Paramagnetic O2 Analyzer Operation Manual
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3.3.1.2. ANALOG INPUTS (OPTION 64) CONNECTIONS
The Analog In connector is used for connecting external voltage signals from
other instrumentation (such as meteorological instruments) and for logging these
signals in the analyzer’s internal DAS. The input voltage range for each analog
input is 0-10 VDC, and the input impedance is nominally 20kΩ in parallel with
0.1µF.
Figure 3-6: Analog In Connector
Pin assignments for the Analog In connector are presented in Table 3-4.
Table 3-4. Analog Input Pin Assignments
PIN DESCRIPTION DAS
PARAMETER1
1 Analog input # 1 AIN 1
2 Analog input # 2 AIN 2
3 Analog input # 3 AIN 3
4 Analog input # 4 AIN 4
5 Analog input # 5 AIN 5
6 Analog input # 6 AIN 6
7 Analog input # 7 AIN 7
8 Analog input # 8 AIN 8
GND Analog input Ground N/A
1 See Section 7 for details on setting up the DAS.
3.3.1.3. ANALOG OUTPUT CONNECTIONS
The T802 is equipped with several analog output channels accessible through the
ANALOG OUT connector on the rear panel of the instrument. The standard
configuration for these outputs is VDC. An optional current loop output is
available for each (Section 3.3.1.4).
When the instrument is in its default configuration, channels A1 and A2 output a
signal that is proportional to the O2 concentration of the sample gas. Either can
be used for connecting the analog output signal to a chart recorder or for
interfacing with a data logger.
If the optional CO2 sensor is installed, A3 outputs a signal proportional to the
CO2 concentration of the sample gas.
07275B DCN6418