AMC 2751 Instruction Manual - Page 12

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4.2.2 INTERFACING TO COMPUTER OR DATALOGGER

The signal output of the AMC-2751 sensor/transmitter is a 4 to 20 mA DC current, therefore
it can be connected to computers or data-loggers equipped with an analog-to-digital converter.
In many cases a load resistor is required to convert the 4 to 20 ma current signal to a voltage
signal, as shown in Figure 5.
CONDUIT
FIGURE 5: Interfacing to Computer or Data-logger
AMC-2751 Transmitter & Sensor
SHIELD
TRANSMITTER
10
+
FILTERED
WHITE
{
12 - 27 VDC
POWER
SUPPLY
-
LOAD
RESISTANCE
FOR VOLTAGE
MEASUREMENT
-
COMPUTER
{
DATALOGGER
SIGNAL
OR NON-AMC
+
MONITOR