ProtEX-MAX PD8-6210 Explosion-Proof Analog Input Batch Controller
Instruction Manual
63
Analog Output Source
The source for generating the 4-20 mA output may be
assigned to the rate/process variable, total, grand
total, maximum or minimum value reached by the
rate/process, one of the set points, or the Modbus PV
input.
Analog Output Value for Loss of
4-20 mA Input (Loop Break)
The AoutPr - Break menu is used to force the analog
output to go to a user-specified mA value if a break
condition is detected in the 4-20 mA input loop.
Selecting Ignore causes the mA output to go to the
minimum value.
Analog Output Calibration
To perform the analog output calibration,
it’s
recommended to use a milliamp meter with a
resolution of at least 0.1 µA to measure the output
current. The values saved internally during this
procedure are used for scaling the 4-20 mA output in
the
Setup
menu.
Analog Output Calibration
Procedure
1. Wire the PD8-6210 4-20 mA output to a current
loop that includes a power supply (internal or
external 12 to 24 VDC), and the mA input on the
digital meter. See
2. Turn on all devices. Allow for a 15 to 30 minute
warm-up.
3. Go to the Advanced Features menu, navigate to
Select (
Select
) and choose Analog Output
Programming (
AoutPr
)/Calibration (
Calib
) menu
and press
Enter
.
4. The display will show
4 nmA
. The PD8-6210 mA
output should now be close to 4 mA. Press Enter
and the display will show 04.000. Enter the actual
value read by the digital mA meter and press
Enter
.
5. The display will show
20 nmA
. The PD8-6210 mA
output should now be close to 20 mA. Press
Enter
and the display will show 20.000. Enter the
actual value read by the digital mA meter and
press
Enter
.
6. The controller will now calculate the calibration
factors and store them.
7. Press
Menu
to exit and return to Run mode.
