PD6600 Series Loop-Powered Process Meters
Instruction Manual
45
Calibrating the Internal mA
Reference (
ICAL
)
The meter is factory calibrated prior to shipment to display
0.00 to 100.00, which corresponds to the 4-20 mA input.
The calibration equipment is traceable to NIST standards.
The use of calibrated signal sources is necessary to
calibrate the internal source of the
meter. The meter’s
internal source is what allows the user to scale the
meter without applying a signal.
Check calibration of the meter at least every
12 months.
Note:
Allow the meter to warm up for at least
15 minutes before performing the internal source
calibration procedure.
The
Internal Calibration
menu is part of the
Advanced
menu. Internal Calibration is performed as follows:
1. Press the
Menu
button to enter
Programming Mode
.
2. Press the
Up-Arrow
button
twice
and press
Enter
to access the
Advanced
menu.
3. Press the
Up-Arrow
button and press
Enter
to access the
System
menu.
4. Press the
Up-Arrow
button and press
Enter
to access the
ICAL
menu.
5. The meter displays
low
input current
message
(
4.000 mA
). Apply a 4 mA signal and press
Enter
. The display flashes for a moment
while the meter is accepting the low input
signal.
6.
After the display stops flashing, the display
moves to the
high
input calibration (
20.000
mA
). Apply the high input signal and press
Enter
. The display will flash again while the
meter is accepting the high input signal.
SYSTM
ICAL
ICAL
4.000 mA
Display
Flashes While
Accepting Input
ICAL
20.000 mA
Display
Flashes While
Accepting Input
Apply 4-mA
Signal
Apply 20-mA
Signal
