Precision Digital PD6310 - Manual (Page 81)

Model PD6210 & PD6310 Batch Controllers Instruction Manual
81
PD6210 Only: Internal Source Calibration (ICAL)
Note: The PD6210 is factory calibrated prior to shipment to read in
milliamps and volts depending on the input selection. The calibration
equipment is certified to NIST standards.
The internal source allows the user to scale the controller without apply-
ing a signal.
The use of calibrated signal sources is necessary to perform the internal
source calibration of the controller.
Check calibration of the controller at least every 12 months. Each input
must be recalibrated separately.
Notes:
1. If controller is in operation and it is intended to accept only
one input type (e.g. 4-20 mA),
recalibration of other input is not necessary.
2. Allow the controller to warm up for at least 15 minutes be-
fore performing the internal source calibration procedure.
The Internal calibration menu is part of the Advanced Features menu.
1. Press and hold the Menu button for three seconds to access the
advanced features of the controller.
2. Press the Up arrow button to scroll to the Internal calibration menu
(ICAL) and press Enter.
3. The controller displays either current calibration (C CAL) or voltage
calibration (v CAL), according to the input setup. Press Enter to start
the calibration process.
Example of Internal Calibration for current input:
4. The controller displays low input current message (C lo). Apply the
low input signal and press Enter. The display flashes for a moment
while the controller is accepting the low input signal.
5. After the display stops flashing, a number is displayed with the left-
most digit brighter than the rest. The bright digit is the active digit
that can be changed by pressing the Up arrow button. Press the
Right arrow button to move to the next digit.