Appendix
A:
Specifications
79
The display contrast can be manually adjusted. Contrast is factory-set for optimized viewing.
Viewable LCD Area:
99 x 24 mm (3.9 x 0.9”)
Character Size
4.84 mm wide x 9.66 mm high
Character Format
5 x 7 dots
Operating Temperature
-20°C to +70°C (-4°F to +158°F)
Storage Temperature
-40°C to +80°C (-40°F to +176°F)
Installation
1141C or 1141L: The 2x16 display is viewable on the outside of the weatherproof enclosure, and it
connects to a female connector on the non-component side of the mainboard.
1141G: The 2x16 display connects to a male connector on the component side of the mainboard via a
short ribbon cable.
System Board
The system board contains the central processing unit, FLASH EPROM memory, RAM, NVRAM,
interface circuitry for the display, and up to four serial ports. Class I, Division 2 configurations also
include a charge controller integral to the system board. This board provides analog I/O and
status/pulse I/O to support up to two natural gas or liquid flow runs with proportional/integral control.
Connection of I/O to the system board is provided by up to 50 terminals with cage type screw
termination blocks with integral test points. There are also connectors along the terminal edge of the
system board for TTL communication and MVT interface.
Each mainboard has an RS-232C local console port (A01), an RS-485 serial port (A21), and an A02
serial port.
Class I, Division 2 configurations also feature an MVT/RTD serial interface. An MVT is a multi-
variable transducer capable of reading both static pressure and differential pressure.
The RTD (analog) input supports up to two RTDs; each RTD can be firmware-configured as two
analog inputs.
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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