To Next Page

To Previous Page

Changing, Storing, and Recalling Custom Setups

Measurement Mode

The measurement mode is selected by pressing one of the four keys in the

PARAMETER group of keys on the front panel.

AUTO In this mode, the meter automatically selects the most appropriate

measurement on the device. The selection is made according to the following

criteria:

If |Q| < 0.125, the meter selects the R+Q measurement mode.

If Q > +0.125, the meter selects the L+Q measurement mode.

If Q < 0.125 and the meter is in the series equivalent circuit mode, the

C+R measurement mode is selected.

If Q < 0.125 and the meter is in the parallel equivalent circuit mode, the

C+D measurement mode is selected.

R+Q In this mode, resistance is displayed on the main parameter display and the

Q (quality factor) is displayed on the secondary parameter display. The R-value

is either the series or parallel equivalent resistance of the component under test.

The unit for R is , k, or M. The Q value is the dimensionless ratio of the

imaginary part of the component’s impedance to its real part. If Q has a positive

(+) value, the reactive component of the device under test is inductive. If Q has a

negative () value, it is capacitive.

L+Q In this mode, the series or parallel equivalent inductance value of a

component under test is displayed on the main parameter display units in units of

µH, mH, or H, and its dimensionless Q value is displayed on the secondary

parameter display.

C+D In this mode, the series or parallel equivalent capacitance value of a

component under test is displayed on the main parameter display in units of pF,

nF, or µF. On the secondary parameter display, the dimensionless ratio D  1/Q

is given. D is normally a small value for a good capacitor.

C+R In this mode, the capacitance is displayed on the main parameter

display and the equivalent resistance is displayed on the secondary parameter

display. The unit for resistance is  unless the k indicator LED is lit.

Frequency

The output frequency is accurate to 100ppm (0.01%). Frequencies are set by

pressing the up/down keys () on the front panel keypad until the LED

corresponding to the desired frequency is illuminated. If the meter is on range

hold on Range 0, the 100 kHz frequency selection is disabled. If 100 kHz is

selected while in Range 0, the meter will beep and “r-f error” (range frequency

error) will be appear on the alphanumeric display. For more details, see the

section on Range.

Protek 9216A User Manual

Questions and Answers: