Teledyne GFC-7000T - Trace CO2 Analyzer - manual - Manual (Page 39)

Getting Started Model GFC7000TA Carbon Dioxide Analyzer
Teledyne Analytical Instruments 21
Pin assignments for the Analog In connector are presented in Table 3-3.
Table 3-3: Analog Input Pin Assignments
PIN DESCRIPTION DAS
PARAMETER
1
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 6.7 for details on setting up the DAS.
3.5.3. Connecting Analog Outputs
The GFC 7000TA is equipped with several analog output channels accessible through a connector on the
back panel of the instrument. The standard configuration for these outputs is mVDC. An optional current
loop output is available for each.
When the instrument is in its default configuration, channels A1 and A2 output a signal that is proportional
to the CO
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 data logger.
Output A3 is only used if the optional O
2
sensor is installed.
Channel A4 is special. It can be set by the user (see Section 6.13.9) to output any one of the parameters
accessible through the <TST TST> keys of the units 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
A1 A2 A3 A4
1 2 3 4 5 6 7 8
Pin-outs for the analog output connector at the rear panel of the instrument are: