Scanner 1141 Hardware User Manual
32
Pwr (SW9)
This switch performs a properly supervised system shutdown when placed
in the OFF position. SW9 generates a power fail interrupt to the CPU and
after a 10-ms delay, shuts the power off to the entire system board.
Figure 3.3— Switches SW9 and SW8, and potentiometers P3 and P2 (upper left corner of main board)
Placing SW9 in the ON position causes a “power on” restart. A “power on”
restart interrupts the flow calculations but does not affect the configuration
or historical flow data if the NVRAM lithium backup battery (CN20) is
enabled. Power-on restarts are logged in the event log. The display will
show:
Power on Restart
Display Wakeup (SW8)
If the display is configured to timeout and turn off, pressing the SW8
button will turn on the display. See Figure 3.3.
Contrast (P3)
The LCD display contrast is adjusted by turning the screw. See Figure 3.3.
Bklight (P2)
This potentiometer adjusts the brightness of a backlit display (available
only on configurations with backlit display). See Figure 3.3.
LCD PwrSav (CN21)
When a backlit display is configured to timeout and turn off, and the CN21
jumper is in the ON position, the display will turn off completely. When
the CN21 jumper is in the OFF position, the backlighting will turn off,
leaving the display on in a standard or non-backlit mode. See Figure 3.4.
Summary of Contents for NUFLO 1141C
Page 1: ...Manual No 30165009 Rev 01 NUFLOTM Scanner 1141 RTU Hardware User Manual ...
Page 28: ...Scanner 1141 Hardware User Manual 28 Figure 3 1 Scanner 1141 main circuit board ...
Page 66: ...Scanner 1141 Hardware User Manual 66 ...
Page 67: ...Chapter 6 Parts List and Order Code 67 Chapter 6 Parts List and Order Code Scanner 1141C ...
Page 68: ...Scanner 1141 Hardware User Manual 68 Scanner 1141L ...
Page 69: ...Chapter 6 Parts List and Order Code 69 Scanner 1141G ...
Page 91: ...Appendix A Specifications 91 Outline Dimensions Scanner 1141C ...
Page 92: ...Scanner 1141 Hardware User Manual 92 Scanner 1141L Front and Side Views ...
Page 94: ...Scanner 1141 Hardware User Manual 94 Scanner 1141G ...
Page 96: ...Scanner 1141 Hardware User Manual 96 Drawing 1 Installation ...
Page 97: ...Appendix B Control Drawings 97 Drawing 2 Power Supply ...
Page 98: ...Scanner 1141 Hardware User Manual 98 Drawing 3 Communications Serial Ports ...
Page 99: ...Appendix B Control Drawings 99 Drawing 4 Status Pulse Inputs Outputs ...
Page 100: ...Scanner 1141 Hardware User Manual 100 Drawing 5 RTD Inputs Analog Inputs Outputs ...
Page 101: ...Appendix B Control Drawings 101 Drawing 6 Analog Outputs ...
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