Fluke 45 User Manual page 53

Dual display multimeter
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45
Users Manual
Meas.
Function
3
FREQ
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.
Function
FREQ
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
Table 4-2. Typical Single Measurement Response Times (in Seconds)
Slow Rate
Auto
Single
1
2
Range
Range
1.00
0.60
2.20
0.80
0.60
0.50
0.60
0.50
1.40
0.60
0.50
0.50
1.20
0.50
Table 4-3. Typical Settling Delays (in Seconds)
Single Function or All AC or All
Range
Slow
All
0.30
All
1.00
All
0.30
All
1.00
300
0.30
3 k
0.30
30 k
0.30
300 k
0.70
3 M
0.70
30 M
1.40
300 M
1.60
NA
0.70
NA
0.50
Medium Rate
Auto
Single
1
Range
Range
0.80
2.00
0.40
0.40
1.20
0.30
1.20
Settling Delay
DC Type
Med
Fast
0.30
0.00
1.00
0.20
0.30
0.00
1.00
0.20
0.30
0.00
0.30
0.00
0.30
0.00
0.70
0.00
0.70
0.00
1.40
0.00
1.60
0.00
0.50
0.10
0.50
0.30
Fast Rate
Auto
2
1
Range
0.40
0.30
0.60
1.00
0.30
0.20
0.30
0.50
0.40
0.40
0.30
0.10
0.50
0.70
AC & DC Types Mixed
Slow
Med
0.40
0.40
1.30
1.30
0.40
0.40
1.30
1 30
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
0.70
0.70
Single
2
Range
0.10
0.30
0.10
0.30
0.10
0.10
0.30
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

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