Precision Digital PD6100 - Manual (Page 81)

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual
81
Internal Source Calibration (ICAL)
The meter is factory calibrated prior to
shipment to read in millivolts. The calibration
equipment is certified to NIST standards.
There is no need to perform an internal
calibration for new meter.
The internal source allows the user to scale the meter without applying
a signal.
The use of calibrated signal sources is necessary to perform the internal
source calibration of the meter.
Check calibration of the meter at least every 12 months. Each range
must be recalibrated separately.
Notes:
1. mV input: If meter is in operation and it is
intended to accept only one input range (e.g.
0-30 mV), recalibration of other ranges is not
necessary.
2. Strain gauge: If the meter is intended to
accept a strain gauge bridge input, it is
recommended to use the CAL function with
ratiometric compensation turned on.
3. 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 Features menu.
1. Press and hold the Menu button for three seconds to access the
advanced features of the meter.
2. Press the Up arrow button to scroll to the Internal calibration menu
(ICAL) and press Enter.
3. The meter displays the first input range (15 mv), press the Up
arrow to select any other range (e.g. 100mv. Press Enter to start
the calibration process.