COSA Xentaur Xentaur XDTL-HT - Manual (Page 26)

26
Analog Outputs
The XTDL-HT™ supports a variety of analog output options. It can be configured to output 4-20mA, 0-
20mA, 0-24mA, 0-5V, 0-10V, ±5V, or ±10V. The instrument is factory configured to either current
output or voltage output. Output range can be changed anytime.
Isolation option is available on the analog outputs for intrinsically-safe application.
Standard XTDL-HT™ includes one analog output channel. With the optional I/O board, the instrument
gains another channel. Each output channel can represent any measurement or result of internal PID
controller. It can also be controlled remotely via Modbus communication.
Current Output
The XTDL-HT™ analog output is a current source with a +15V output. No external power supply should
be configured to the current loop.
+
+ -
-
Power Supply
Process Monitor Process Monitor
+ +
- -
The instrument can detect fault on the current loop, such as shorted or opened. During such event,
system fault is generated and error message is shown on the main screen. Therefore, the current loop
should be wired to the process monitor before being enabled.
Voltage Output
The XTDL-HT™ can provide voltage output down to 1kΩ load. If long cabling is used on voltage output,
voltage drop from the cable can be compensated by re-calibrating the unit digital-to-analog converter
once it is wired to the process monitor.
NOTE: Instrument signals Analog Output Error if current loop is left opened.
Wire current loop to process monitor before enabling.