ITVC Series – Intelligent Total Valve Controller IOM-ITVC-Basic-05
DVG AUTOMATION S.p.A.
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10.3.7.4.22
Analog inputs
The sub-menu allows setting the variable connected to the analogue input channels. The set of type of variable and
hardware channel must be previously done by the ITVC manufacturer. This sub-menu allows setting the availability
(Available/not Available), the mode (direct/reverse) and the mA to Engineering Unit relationship (4mA=xxxx EU,
20mA=xxxx EU)
10.3.7.4.23
Out analog 1-2 calib
The sub-menu allows setting the output channels 1 and 2 to adapt the 4-20mA output to the user instruments connected
to it. The set of type of variable associated to the output channel must be previously done by the ITVC manufacturer.
The ITVC “4-20mA outputs” are calibrated to supply an output signal with range 4-20mA, in factory. By a multimeter
(or any indicator) connected to the output, the user can adjust the range by the procedure described below. Modify the
variable associated to the output at the minimum (for instance in case of “Valve Position” close the valve) and set the
minimum (4 mA calibration page). Now modify the variable at the maximum (for instance in case of “Valve Position”
open the valve) and set the maximum (20 mA calibration page).
The below figures shows the procedure for one only channel. The procedure should be repeated for all channels. If any
variable is connected to the analogue input or output the ITVC displays the message “NOT PRESENT”.
Содержание IOM-ITVC-Basic-05
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