
18 Chapter 2 Documentation Number UD128A8D4602 Manual
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph 353-91-792444 – Fax 353-91-792445
Vin
-10 to +10V
Analog
Input
UD128A8DExternal Circuit
1M
1M
1M
1M
Analog
GND
+
-
5VDC
Fig. 2.15 Scaled 20 Volt Input Offset for +/-
Sensor
Analog
Input
UD128A8DExternal Circuit
249
Analog
GND
Loop
Supply
Voltage
(>5V + Vsensor)
4-20mA
or
0-20mA
+Vsensor-
+
-
Fig. 2.16 Analog 4-20mA or 0-20mA Input
Vin
0to+5V
Even #
Analog
Input(+)
UD128A8DExternal Circuit
Odd #
Analog
Input(-)
Analog
GND
100 K
Fig. 2.17 Analog Differential Pair Inputs
Analog
Output
UD128A8DExternal Circuit
Analog
GND
Voltage
Controlled
Power Supply
Input
+
-
Output
+
-
To Test
Circuit
Fig. 2.18 Analog Output to Voltage Controlled PS
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