Digital Multimeter

Specifications

Table 7. Capacitance and Diode Function Specifications

Function

Range

Resolution

Accuracy

 

 

 

 

E

10.00 nF

0.01 nF

± (1 % + 2)1

 

100.0 nF

0. 1 nF

± (1 % + 2)1

 

1.000

F

0.001 F

± (1 % + 2)

 

10.00

F

0.01 F

± (1 % + 2)

 

100.0

F

0.1 F

± (1 % + 2)

 

9999 F

1 F

± (1 % + 2)

 

 

 

 

 

G

3.000

V

0.001 V

± (2 % + 1)

 

 

 

 

 

1. With a film capacitor or better, using Relative mode to zero residual.

Table 8. Frequency Counter Specifications (Models 87 and 83)

Function

Range

Resolution

Accuracy

 

 

 

 

Frequency

199.99

0.01 Hz

± (0.005 % + 1)

(0.5 Hz to 200 kHz,

1999.9

0.1 Hz

± (0.005 % + 1)

pulse width > 2 s)

19.999 kHz

0.001 kHz

± (0.005 % + 1)

 

199.99 kHz

0.01 kHz

± (0.005 % + 1)

 

> 200 kHz

0.1 kHz

unspecified

 

 

 

 

Table 9. Frequency Counter Specifications (Model 88)

 

Function

Range

Resolution

Accuracy

Pulse Width

Resolution

 

Range (ms)1

(ms)

 

 

 

 

 

Frequency2

199.99

0.01 Hz

± (0.01 % + 1)

1999.9

0.1

(0.5 Hz to 200 kHz,

1999.9

0.1 Hz

± (0.01 % + 1)

5.00

0.01

pulse width > 2 s)

19.999 kHz

0.001 kHz

± (0.01 % + 1)

0.500

0.001

 

 

199.99 kHz

0.01 kHz

± (0.01 % + 1)

0.0500

0.0001

 

 

> 200 kHz

0.1 kHz

unspecified

 

 

 

 

 

 

 

 

RPM n

30 to 9,000

1 RPM

± 2 RPM

 

 

 

 

 

 

 

 

RPM o

60 to 12,000

1 RPM

± 2 RPM

 

 

 

 

 

 

 

 

% Duty Cycle3

0.0 to 99.9% (0.5 Hz to 200 kHz, Pulse Width >2 s)

 

 

Pulse Width3

0.002 to 1999.9 ms (4 Hz to 200 kHz, Pulse Width >2 s)

 

 

1.

Pulse Width range is determined by the frequency of the signal.

 

 

2.

Frequency measurements can be made on voltage or current inputs. The current inputs are always dc coupled.

3. For rise times >1 s. Duty Cycle Accuracy: ±(0.2 % per kHz + 0.1%). Pulse Width Accuracy: ±(0.002 ms + 3).

Table 10. Frequency Counter Sensitivity and Trigger Levels

Input Range1

Minimum Sensitivity (RMS Sine wave)

 

Approximate Trigger Level

 

 

 

(DC Voltage Function)

5 Hz - 20 kHz

0.5 Hz - 200 kHz

 

 

 

 

 

 

600 mV dc

70 mV (to 400 Hz)

70 mV (to 400 Hz)

 

40 mV

600 mV ac

150 mV

150 mV

 

6 V

0.3 V

0.7 V

 

1.7 V

60 V

3 V

7 V (140 kHz)

 

4 V

600 V

30 V

70 V (14.0 kHz)

 

40 V

1000 V

100 V

200 V (1.4 kHz)

 

100 V

 

 

 

 

 

Duty Cycle Range

 

 

Accuracy

 

 

0.0 to 99.9 %

Within ± (0.2% per kHz + 0.1 %) for rise times < 1 s.

 

 

 

 

 

1. Maximum input for specified accuracy = 10X Range or 1000 V.

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Fluke 80 Series V manual Capacitance and Diode Function Specifications, Frequency Counter Specifications Models 87