Fluke 45 user manual Users Manual, Meas Function

Models: 45

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Meas.

45

Users Manual

Table 4-2. Typical Single Measurement Response Times (in Seconds)

Meas.

Function

{

[

`

e

GR

FREQ3

Slow Rate

Auto

Single

Range1

Range2

1.000.60

2.200.80

0.600.50

0.600.50

1.400.60

0.500.50

1.200.50

Medium Rate

Auto

Single

Range1

Range2

0.800.40

2.000.60

0.400.30

0.400.30

1.200.40

0.300.30

1.200.50

Fast Rate

Auto

Single

Range1

Range2

0.300.10

1.000.30

0.200.10

0.500.30

0.400.10

0.100.10

0.700.30

1.Time to autorange a new measurement from the lowest to the highest range and to display the result.

2.Typical time to change to the next higher or lower range and display the result.

3.Frequency greater than 150 Hz. Refer to frequency measurement rates in Table 3-6.

Meas.

Table 4-3. Typical Settling Delays (in Seconds)

 

 

Settling Delay

 

 

 

 

 

 

Single Function or All AC or All

 

 

 

DC Type

 

AC & DC Types Mixed

 

 

 

 

 

Function

{

A

B

e

GR

FREQ

Range

All

All

All

All

300

3k

30k

300k

3M

30M

300M

NA

NA

Slow

0.30

1.00

0.30

1.00

0.30

0.30

0.30

0.70

0.70

1.40

1.60

0.70

0.50

Med

0.30

1.00

0.30

1.00

0.30

0.30

0.30

0.70

0.70

1.40

1.60

0.50

0.50

Fast

0.00

0.20

0.00

0.20

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.10

0.30

Slow

0.40

1.30

0.40

1.30

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

0.70

Med

0.40

1.30

0.40

1 30

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

0.70

Fast

0.00

0.20

0.00

0.20

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

0.30

For example, assume the meter has a 1 volt dc input and is taking measurements and updating the primary display on the 30 volt range (medium reading rate, autoranging off). If you then select the volts dc function for the secondary display, the meter will not use the same measurement to update both displays. It will autorange to the 3 volt range (the secondary display always autoranges) and take an additional measurement of the input (on the 3 volt range) for the secondary display.

4-6

Page 53
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Fluke 45 user manual Users Manual, Meas Function