2-1
2.1
Introduction
This section gives detailed procedures for calibrating the
Model 6517A. Basically, there are four parts to the compre-
hensive calibration procedure:
• Meter calibration (volts, amps, and coulombs)
• Temperature calibration
• Voltage source calibration
• Humidity calibration
Meter calibration requires accurate calibration equipment to
supply precise DC voltages, DC currents, and charge values.
Voltage source calibration requires an accurate DMM to
measure DC voltages. Temperature calibration requires spe-
cial temperature calibration equipment, while an accurate
voltage source is needed for humidity calibration.
A single-point calibration feature is also available to allow
you to calibrate a single function or range without having to
perform the entire calibration procedure.
WARNING
The procedures in this section are
intended only for qualified service per-
sonnel. Do not attempt to perform these
procedures unless you are qualified to
do so.
Section 2 includes the following information:
2.2
Environmental conditions:
States the temperature
and humidity limits for calibration.
2.3
Warm-up period:
Discusses the length of time the
Model 6517A should be allowed to warm up before
calibration.
2.4
Line power:
States the power line voltage limits when
calibrating the unit.
2.5
Recommended calibration equipment:
Summarizes
all test equipment necessary for calibrating the Model
6517A.
2.6
Calibration lock:
Explains how to unlock calibration
using the CAL switch.
2.7
Calibration errors:
Discusses front panel error mes-
sages that might occur during calibration and also
explains how to check for errors over the bus.
2.8
Front panel calibration:
Covers calibration of all
Model 6517A functions from the front panel.
Functions calibrated include volts, amps, coulombs,
the voltage source, as well as the temperature and
humidity functions.
2.9
IEEE-488 bus calibration:
Details calibration of all
instrument functions over the IEEE-488 bus.
2.10 Single-point calibration:
Outlines the basic methods
for calibrating only a single function or range instead
of having to go through the entire calibration
procedure.
2.11 Programming calibration dates:
Covers the proce-
dures for programming the calibration date and cali-
bration due date.
2.12 Calibration temperature difference:
Discusses how
to determine the internal temperature difference.