Dynasonics DXN Portable Ultrasonic Measurement System - Manual (Page 84)

Analog Outputs
Analog outputs are signals that changes continuously over time. In most control applications, analog signals range
continuously over a specified current or voltage. The DXN offers a DC voltage output and two styles of 4-20 mA current
output. See I/O>Set Out.
Voltage Output (10 V DC Max)
The voltage output is configured for 0…10 V DC. Analog signals represent continuously variable measurements.
Voltage Output
Signal
0 VDC
(Ground)
Figure 115: Voltage Output Connection
4-20 mA Current Loop Output (Current Sinking)
10 - 30 VDC
Power Supply
(+) 4-20 mA (-) 4-20 mA
Figure 116: 4-20 mA Current Sinking Output
The 4-20 mA output interfaces with most recording and logging systems by transmitting an analog current signal that is
proportional to system flow rate. The 4-20 mA output is internally powered (current sourcing) and can span negative to
positive flow/energy rates.
The 4-20 mA output is driven from a +15 V DC source located within the meter. The source is isolated from earth ground
connections within the DXN. The 4-20 mA output signal is available between the 4-20 mA Out and Signal Ground terminals.
DXN Portable Ultrasonic Measurement System
Page 84 February 2013