Fluke 123 FE 123 & 124 Users Manual - Page 46

Using the 10:1 Probe for High Frequency, Measurements., Probe Attenuation.

Get Fluke 123 PDF manuals and user guides View all Fluke 123 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 46 highlights

Fluke 123/124 Users Manual The reading now shows the risetime from 10%-90% of the trace amplitude and the voltage at the cursors in relation to the zero icon (-). See Figure 1-21. ~ Turn off the cursors. 38 Using the 10:1 Probe for High Frequency Measurements. Fluke 124 is supplied with a model VP40 10:1 Probe. Use of this Probe is recommended when you measure high frequency signals in circuits with a high impedance. The loading of the circuit by a 10:1 Probe is much lower than that of a 1:1 Shielded Test Lead. The following aspects must be observed when using a 10:1 Probe: Probe Attenuation. The Probe attenuates the signal 10 times. Proceed as follows to adapt the Test Tool's voltage readout to this attenuation. The example below is for a Probe connected to input B: Open the Scope menu. Open the Probes menu. Select PROBE on B ... Press ENTER Select 10:1 V

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
Fluke 123/124
Users Manual
38
The reading now shows the risetime from 10%-90% of the
trace amplitude and the voltage at the cursors in relation
to the zero icon (-). See Figure 1-21.
⑦
Turn off the cursors.
Using the 10:1 Probe for High Frequency
Measurements.
Fluke 124 is supplied with a model VP40 10:1 Probe. Use
of this Probe is recommended when you measure high
frequency signals in circuits with a high impedance. The
loading of the circuit by a 10:1 Probe is much lower than
that of a 1:1 Shielded Test Lead.
The following aspects must be observed when using a
10:1 Probe:
Probe Attenuation.
The Probe attenuates the signal 10 times. Proceed as
follows to adapt the Test Tool’s voltage readout to this
attenuation. The example below is for a Probe connected
to input B:
±
Open the Scope menu.
²
Open the Probes menu.
³
Select PROBE on B ...
´
Press ENTER
µ
Select 10:1 V