Calibration Procedures; Introduction; Calibration Enable - Protek 9216A User Manual

Capacitance
1.0 nF
1.0 nF
1.0 nF
10.0n
10.0 nF
10.0 nF
10.0 nF
100 nF
100 nF
100 nF
100 nF
1.000 F
1.000 F
1.000 F
10.000 F
10.000 F

Calibration Procedures

Introduction

Calibration of the 9216A is composed of several parts: open and short circuit calibrations,
standard resistor calibration, and amplitude calibration.
The open and short circuit calibrations (described in Volume 1 of this manual) are off-
set corrections to correct for any stray impedances of the test fixture. These Calibrations
may be performed at any time and should be done whenever the fixture is changed.
The standard resistor calibration sets the accuracy of the 9216A, since it allows the
LCR meter to determine the values of its internal standard resistors. Standard resistor
Calibration need only be performed periodically to account for component aging and drift.
Amplitude calibration sets the amplitude of the AC test signal, and only needs to be
done periodically. The amplitude calibration does not affect the 9216A's accuracy.

Calibration Enable

The 9216A is shipped with amplitude calibration disabled. When calibration is disabled
only the open and short circuit calibrations are allowed. The internal calibration enable
jumper must be set to enable amplitude and resistor calibration. To set the jumper, re-
move the 9216A top cover by removing its four retaining screws (this will break the
calibration seal). In the rear center of the circuit board is a three pin jumper labeled
JP1001. Use the jumpers to connect the center pin and the "cal" pin to enable calibration.
Connecting the center pin and the "normal" pin will disable calibration.
Capacitance Accuracy Table
Frequency Range
1 kHz 0
10 kHz 1
100 kHz 2
100 Hz 0
1 kHz 1
10 kHz 2
100 kHz 2
100 Hz 1
1 kHz 2
10 kHz 2
100 kHz 3
100 Hz 2
1 kHz 2
10 kHz 3
100 Hz 2
1 kHz 3
9216A tol. + C tol.
.99930 nF - 1.0007 nF
.99880 nF - 1.0012 nF
.99780 nF - 1.0022 nF
9.9930 nF - 10.007 nF
9.9930 nF - 10.007 nF
9.9880 nF - 10.012 nF
9.9780 nF - 10.022 nF
99.930 nF - 100.07 nF
99.930 nF - 100.07 nF
99.880 nF - 100.12 nF
99.780 nF - 100.22 nF
.99930 F - 1.0007 F
.99930 F - 1.0007 F
.99880 F - 1.0012 F
9.9930 F - 10.007 F
9.9930 F - 10.007 F
20