Fluke 9500B - Page 53

Section 4: Using the Model 9500B — Edit Facilities 4.4-3
Final Width = 215mm
Descriptions assume 9500B/1100
TODAY'S DATE TIME
Fig. 4.4.8 Deviation Selected as ∆ V
OFF
SIGNAL CH1 5ØΩ
TRIGGER NONE
∆ = Ø
Amplitude = 2Ø.ØØØ mV
pk-pk
Deviation = ØØ.ØØØ mV
pk-pk
O/P Amplitude = 2Ø.ØØØ mV
pk-pk
Frequency = 1.ØØØØ kHz
1
2
5
1.Ø
∆%
∆V
WAVE
FORM
CHANNEL
SELECT
Fig. 4.4.9 Option to Choose Units for
Deviation Value
TODAY'S DATE TIME
OFF
SIGNAL CH1 5ØΩ
TRIGGER NONE
V
Amplitude = 2Ø.ØØØ mV
pk-pk
Deviation =
O/P
Amplitude = 2Ø.ØØØ mV
pk-pk
Frequency = 1.ØØØØ kHz
1
2
5
1.Ø
ØØ.ØØØ mV
pk-pk
.ØØ2
mV
µV
WAVE
FORM
CHANNEL
SELECT
In this case by typing the number '.002', the
9500B respects this change of units. The result
is shown in Fig. 4.4.9, also changing the
available unit labels on the right screen keys to
reflect the change.
Note that if the new value is implemented by
pressing the ↵ (Enter) key on the keypad, then
(in this case) the units will be Volts. If the
number '2' had been typed followed by ↵, an
error message would have appeared, as 2V is
obviously outside the deviation range of ±10%
for the set value of 20mV. This could have
been avoided by typing '2', then pressing the
'mV' screen key to obtain the correct result
(Fig.4.4.10):
TODAY'S DATE TIME
5
2
1
1.Ø
Fig. 4.4.11 Direct Mode Starting Point
OFF
SIGNAL CH1 1MΩ
TRIGGER NONE
∆ = Ø
Amplitude = 222.4Ø V
pk-pk
Deviation = ØØ.ØØ %
O/P
Amplitude = 222.4Ø V
pk-pk
Frequency = 1.ØØØØ kHz
WAVE
FORM
CHANNEL
SELECT
x 1Ø
÷ 1Ø
4.4.2.5 Return to Scope Mode
The 9500B will always permit return from
Direct mode to Scope mode, even if the values
on the screen cannot be attained in Scope
mode. The values will default to extremes if
necessary. For example:
In Fig. 4.4.11, the (maximum) O/P Amplitude
has been set using Direct mode (as shown). An
error message will result for any attempt to
increase the Amplitude value or any positive
Deviation percentage.
If the bottom right screen key (Editing Mode
key) is pressed to return to Scope mode, the
two contributors (Units/Div and Deviation)
will be adjusted to the achieve the same O/P
Amplitude, as shown in Fig 4.4.12:
For simplicity, the remainder of Manual mode
is described in this handbook in terms of Scope
mode, Digit Edit.
Fig. 4.4.10 Voltage Deviation Applied
TODAY'S DATE TIME
OFF
SIGNAL CH1 5ØΩ
TRIGGER NONE
∆ = Ø
Amplitude = 2Ø.ØØØ mV
pk-pk
Deviation =+Ø2.ØØØ mV
pk-pk
O/P Amplitude = 22.ØØØ mV
pk-pk
Frequency = 1.ØØØØ kHz
1
2
5
1.Ø
∆%
∆V
WAVE
FORM
CHANNEL
SELECT
TODAY'S DATE TIME
Fig. 4.4.12 Transfer to Scope Mode
OFF
SIGNAL CH1 1MΩ
TRIGGER NONE
∆ = Ø
5Ø.Ø V/div x4 = 2ØØ.ØØ V
pk-pk
Deviation = +11.2Ø %
O/P
Amplitude = 222.4Ø V
pk-pk
Frequency = 1.ØØØØ kHz
WAVE
FORM
CHANNEL
SELECT
x 1Ø
÷ 1Ø
The new deviation of +2mV is equivalent to
+10% of the set value, which can be seen by
pressing the right side key ∆%/∆V.
Numeric Entry Result
The 9500B will comply with the instructions
given in Numeric Entry, using the displayed
value to set the output deviation, in the same
way as for Digit Edit. This applies wherever it
is possible to use Numeric Entry.
continued overleaf →
1
2
5
1.Ø