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1
A
TECHNICAL CHARACTERISTICS,,
The technical characteristics of the Model 75D
are shown in the following table:
TABLE 2
Technical Characteristics
a.
Capacitance Measurement
Capacitance Range:
0 to 1000 pF
Capacitance Resolution and Accuracy:
Resolution
Accuracy
MULTIPLY C
Setting
Capacitance
Range (pF)
Phase
Mode (pF)
Amplitude
Mode(pF)
Phase Mode
Amplitude Mode
1 .0
0 to 1000
0.2
0.2
+(0.25 +
1°-)%
+ 0.5pF*
Q
+0.25%+(1000/RD+0.5)pF
—
P
0.1
0 to 100
0.02
0.02
+(0.25 +-L)% + 0.05pF
w
+0.25%+(1000/Rp+0.05)pF
0.01
0 to 10
0.002
0.002
+(0.25 +-jL)% + 0.005pF
+ 0.25%+(l 000/Rp+0.005)pF
0.001
0 to 1
0.0002
0.0005
+(0.25+—)%+0.001pF
Q
±0.25%+(l 000/Rp+0.001 )pF
0.0001
0 to 0.1
0.00005
0.0005
+(2+-J°)%
+0.00005pF
±2% +(1000/Rp+0.0005)pF
Where Rp is the equivalent parallel resistance of the specimen in ohms.
* Q must be 10 or greater.
75D
b-370
3
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