Weidmuller LPD450F - Display instrument for outdoor use - Handbuch (Seite 16)

16
• Calibration
General
The LPD450F is factory calibrated. You should not have to recalibrate the
unit before installation.
Allow the instrument 15 minutes of powered operation (to reach a
stable temperature) before calibration. During calibration allow a few
seconds for signals to stabilise before accepting the value.
Equipment requirements
• A suitable 4-0 mA current source
Input calibration procedure
When the display shows Action/Description
Connect the current source to the inputs and set to 4.00 mA.
Put the run/calibrate switch in calibrate position, select setup mode.
CALb Press P
CALn Press Å
CALy Press P three times
InH= Set the current source to 20.00 mA
Press
P three times
UPCn Press Å
UPCy Press P