Fluke 45 User Manual
Page 53
45
Users Manual
4-6
Table 4-2. Typical Single Measurement Response Times (in Seconds)
Slow Rate
Medium Rate
Fast Rate
Meas.
Function
Auto
Range
1
Single
Range
2
Auto
Range
1
Single
Range
2
Auto
Range
1
Single
Range
2
|
1.00
0.60
0.80
0.40
0.30
0.10
{
2.20
0.80
2.00
0.60
1.00
0.30
[
0.60
0.50
0.40
0.30
0.20
0.10
`
0.60
0.50
0.40
0.30
0.50
0.30
e
1.40
0.60
1.20
0.40
0.40
0.10
GR
0.50
0.50
0.30
0.30
0.10
0.10
FREQ
3
1.20
0.50
1.20
0.50
0.70
0.30
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.
Table 4-3. Typical Settling Delays (in Seconds)
Settling Delay
Single Function or All AC or All
DC Type
AC & DC Types Mixed
Meas.
Function
Range
Slow
Med
Fast
Slow
Med
Fast
|
All
0.30
0.30
0.00
0.40
0.40
0.00
{
All
1.00
1.00
0.20
1.30
1.30
0.20
A
All
0.30
0.30
0.00
0.40
0.40
0.00
B
All
1.00
1.00
0.20
1.30
1 30
0.20
e
300
Ω
3 k
Ω
30 k
Ω
300 k
Ω
3 M
Ω
30 M
Ω
300 M
Ω
0.30
0.30
0.30
0.70
0.70
1.40
1.60
0.30
0.30
0.30
0.70
0.70
1.40
1.60
0.00
0.00
0.00
0.00
0.00
0.00
0.00
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
N/A
N/A
N/A
N/A
N/A
GR
NA
0.70
0.50
0.10
N/A
N/A
N/A
FREQ
NA
0.50
0.50
0.30
0.70
0.70
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.