A-10
Appendix A
Scanner
®
2000 microEFM
Wiring Diagrams
Analog Inputs 1 and 2
The analog inputs, which can be configured for a 0-5 V, 1-5 V or 4-20 mA signal, can be used to receive
readings from a pressure or temperature transmitter for use in AGA-7 gas calculations. Alternatively, they can
be used to log measurements from any device with a 0-5 V, 1-5 V or 4-20 mA output.
Transmitter power is provided by the Scanner 2000 only when the Scanner is externally powered. The output
voltage equals the input voltage less 0.25 VDC, and is limited to 20 mA.
If a 4-20 mA transmitter is used, a resistor must be added to the circuit, as shown in Figure A.15. The
expansion board circuit will support a resistor range of 200 to 300 ohms; 250 ohms is recommended.
ANALOG INPUT 1 (TB5)
17 18 19
TB
9
TB
8
TB
7
TB6
TB
5
1-5 VDC
TRANSMITTER
POWER
RETURN
SIGNAL
PWR
IN+IN-
TB4
Expansion
Board PN:
9A-30160014
ANALOG INPUT 2 (TB6)
20
21
TB
9
TB
8
TB
7
TB6
TB
5
PW
R
IN
+
IN
-
22
1-5 VDC
TRANSMITTER
POWER
RETURN
SIGNAL
TB4
Expansion
Board PN:
9A-30160014
4-20 mA
TRANSMITTER
Resistor Required
(250-ohm recommended)
17 18 19
PWR
IN+IN-
TB
5
4-20 mA TRANSMITTER WIRING
(CAN BE USED WITH ANALOG INPUT 1 OR 2)
Figure A.15—0-5 V, 1-5 V and 4-20 mA analog input wiring
Summary of Contents for Scanner 2000 microEFM
Page 1: ...NUFLO Scanner 2000 microEFM Hardware User Manual Manual No 9A 30165023 Rev 10 ...
Page 26: ...26 Section 1 Scanner 2000 microEFM ...
Page 104: ...A 18 Appendix A Scanner 2000 microEFM ...
Page 106: ...B 2 Appendix B Scanner 2000 microEFM ...
