Auto Ramping The Ma Output - Fluke 787 User Manual

Table 10. mA Step Values
Value (for each span setting)
Step
4 to 20 mA
0 % 4.000 mA
25 % 8.000 mA
50 % 12.000 mA
75 % 16.000 mA
100 % 20.000 mA
125 % 24.000 mA
120 %

Auto Ramping the mA Output

Auto ramping gives you the ability to continuously apply a
varying current stimulus from the Meter to a transmitter,
while your hands remain free to test the response of the
transmitter. Select either sourcing or simulating by
choosing the SOURCE or SIMULATE jacks.
info@Fluke-Direct.com
When the rotary switch is in the OUTPUT mA J
position, the Meter produces a continuously repeating 0 %
- 100 % - 0 % ramp in your choice of three ramp
waveforms:
0 to 20 mA
E
0.000 mA
5.000 mA
P
10.000 mA
N
15.000 mA
20.000 mA
The ramp times are not adjustable. Press the BLUE
pushbutton to cycle through the three waveforms.
24.000 mA
Fluke-Direct
Using the Current Output Functions
0 % - 100 % - 0 % 40-second smooth ramp,
(default)
0 % - 100 % - 0 % 15-second smooth ramp
0 % - 100 % - 0 % Stair-step ramp in 25 % steps,
pausing 5 seconds at each step. Steps are listed
in Table 10.
Note
At any time during auto ramping, you can freeze
the ramp simply by moving the rotary switch to
the [ mA position. Then you can use the
COARSE, FINE, and % STEP adjust pushbuttons
to make adjustments.
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