Appendix
A:
Specifications
81
Communications Port (cont’d)
RS-485 ports
RS-485 is a two-wire, AC-coupled connection that uses
dedicated terminals that are separate from the RS-232C, with
switch-selectable biasing and termination resistors.
TTL ports
The TTL has an 8-pin molex connector, with Tx (3.3V), Rx (3.3V
or 5V), RTS, CTS, GND, earth GND. Firmware-configurable for
normal or inverted orientation.
*DMA (Direct Memory Access) on Rx and Tx of ports A01, A02, and A21.
MVT/RTD Input
The MVT/RTD Multivariable Transducer uses a serial TTL interface to transmit differential pressure,
static pressure, and temperature to the Scanner EFM/RTU. This configuration can be used in Class I,
Division 2 applications.
MVT Inputs
Quantity
2 (1 static pressure and 1 differential pressure )
Accuracy
Differential Pressure Accuracy (30 In. H2O): ±0.10%
Differential Pressure Accuracy (200 to 840 In. H2O)
:
±0.05%
Static Pressure Accuracy: ±0.05%
Temperature Performance
±0.25% of full scale over full operating temperature range
Effect on differential pressure
for a 100-psi change in static
pressure
Span shift ± 0.01% of reading
Zero shift listed by URL:
Differential Pressure
URL (inches wc)
Static Pressure
URL (psi)
Zero Shift
(% of URL)
30 100
±0.05%
200 300
±0.007%
200
500 to 5300
±0.01%
300
1500 to 5300
±0.004%
400
1500 to 5300
±0.004%
840 300
±0.002%
840
1500 to 5300
±0.004%
Stability
Long-term drift is less than ± 0.05% of URL per year over a 5-
year period.
Содержание NUFLO 1141C
Страница 1: ...Manual No 30165009 Rev 01 NUFLOTM Scanner 1141 RTU Hardware User Manual ...
Страница 19: ...Chapter 3 Main Circuit Board Wiring 19 Figure 2 5 Components of 1141C Figure 2 6 Components of 1141L ...
Страница 28: ...Scanner 1141 Hardware User Manual 28 Figure 3 1 Scanner 1141 main circuit board ...
Страница 39: ...Chapter 3 Main Circuit Board Wiring 39 Wiring Diagram Summary Figure 3 7 Main circuit board wiring summary ...
Страница 66: ...Scanner 1141 Hardware User Manual 66 ...
Страница 67: ...Chapter 6 Parts List and Order Code 67 Chapter 6 Parts List and Order Code Scanner 1141C ...
Страница 68: ...Scanner 1141 Hardware User Manual 68 Scanner 1141L ...
Страница 69: ...Chapter 6 Parts List and Order Code 69 Scanner 1141G ...
Страница 91: ...Appendix A Specifications 91 Outline Dimensions Scanner 1141C ...
Страница 92: ...Scanner 1141 Hardware User Manual 92 Scanner 1141L Front and Side Views ...
Страница 94: ...Scanner 1141 Hardware User Manual 94 Scanner 1141G ...
Страница 96: ...Scanner 1141 Hardware User Manual 96 Drawing 1 Installation ...
Страница 97: ...Appendix B Control Drawings 97 Drawing 2 Power Supply ...
Страница 98: ...Scanner 1141 Hardware User Manual 98 Drawing 3 Communications Serial Ports ...
Страница 99: ...Appendix B Control Drawings 99 Drawing 4 Status Pulse Inputs Outputs ...
Страница 100: ...Scanner 1141 Hardware User Manual 100 Drawing 5 RTD Inputs Analog Inputs Outputs ...
Страница 101: ...Appendix B Control Drawings 101 Drawing 6 Analog Outputs ...
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