Chapter 9 Optional Equipment
Input Pins
To activate the zero gas mode, connect pin 1, 6, 14, or 19 (ground) to pin 5 (zero gas
mode), as shown in Figure 9-4. To deactivate the zero gas mode, disconnect ground from
the zero gas mode input.
12
Figure 9-4.
Remote I/O Zero Gas Mode Activation
64P947-6
To activate the span gas mode, connect pin 1, 6, 14, or 19 (ground) to pin 18 (span gas
mode), as shown in Figure 9-5. To deactivate the span gas mode, disconnect ground
from the span gas mode input.
Figure 9-5.
Remote I/O Span Gas Mode Activation
64P947-7
9-7