Fluke 5522A Operators, Руководство оператора

Страница: 110 / 426

5522A
Operators Manual
4-34
•
OHMS ZERO Press to recalibrate internal circuitry for the ohms function (allow
several minutes).
•
COMP (Compensation) Applies 4-wire compensation, 2-wire compensation or turns
compensation off. Compensation is available for resistances up to (but not including)
110 k
Ω
. See “Four-Wire versus Two-Wire Connections” earlier in this chapter for
more information.
How to Set Capacitance Output
Complete the following procedure to set a synthesized capacitance output at the front
panel NORMAL terminals. If you make an entry error, press
G
to clear the display,
then reenter the value.
1.
Press
R
to clear any output from the Calibrator.
2. Connect the UUT as described earlier in this chapter under “How to Connect the
Calibrator to a UUT.” Also refer to “Cable Connection Instructions” for a procedure
to null out stray capacitances due to the test cable connections.
Note
Since this is a synthesized output, be sure the terminal connections from the
Calibrator to the UUT are LO to LO and HI to HI.
3. Set the UUT to measure capacitance on the desired range.
4. Press the numeric keys and decimal point key to enter the desired capacitance output
(maximum five numeric keys). For example, 123.45.
5. Press a multiplier key (preceded with the
b
key) for the desired output. For
example, press
b
then
c
for
μ
F. The other multiplier keys include
M
for pF
and
K
for nF.
6. Press
F
.
7. The Control Display now shows the amplitude of your capacitance entry. For
example, 123.45
μ
F (below).
nn099f.eps
8. Press
E
. The calibrator clears your entry from the Control Display and copies it
into the Output Display (below is typical).
nn100f.eps
9. Press
O
to activate the calibrator output.
The softkey in the Control Display labeled COMP allows you to select one of three lead-
compensation settings.