Emerson Process Management 3420 Carbon Monoxide Alarm User Manual


 
Reference, Installation, and Operations Manual Section 3: Installation
3-9000-743 Rev S June 2013
Series 100 Option Board analog output switch settings 83
3.5.4 Series 100 Option Board analog output switch settings
The Option Board provides a 4-20 mA analog output signal that is hardware configurable to
either sink or source current as described in Ta bl e 3 -3 7 and Tab le 3- 46 below and in Daniel
drawing DE-21056 (particularly page 3, notes 26 and 27, see Appendix I).
Table 3-37 Series 100 Option board Analog Out sink setting
Board Switch Position
Series 100 Option S14-1 SINK
S14-2 SINK
S14-3 SINK
Table 3-38 Series 100 Option board Analog Out source setting
Board Switch Position
Option S14-1 SRC
S14-2 SRC
S14-3 SRC
If the analog output is configured for ‘Source’ mode (i.e., powered by the meter), then it
must be at the bottom of the loop (stack).