Fluke 787 FE 787 Users Manual - Page 24

Using the Current Output Functions, Source Mode - source simulate

Get Fluke 787 PDF manuals and user guides View all Fluke 787 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 24 highlights

787 Users Manual Using the Current Output Functions The meter provides steady, stepped, and ramped current output for testing 0-20 mA and 4-20 mA current loops. You can choose source mode, in which the meter supplies the current, or simulate mode, in which the meter regulates current in an externally-powered current loop. Source Mode Source mode is selected automatically by inserting the test leads into the SOURCE + and − jacks as shown in Figure 7. Use source mode whenever you need to supply current into a passive circuit such as a current loop with no loop supply. Source mode depletes the battery faster than simulate mode, so use simulate mode whenever possible. The display looks the same in source and simulate modes. The way to tell which mode is in use is to see which pair of output jacks is in use. 20

  • 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
787
Users Manual
20
Using the Current Output Functions
The meter provides steady, stepped, and ramped current
output for testing 0-20 mA and 4-20 mA current loops.
You can choose source mode, in which the meter
supplies the current, or simulate mode, in which the
meter regulates current in an externally-powered current
loop.
Source Mode
Source mode is selected automatically by inserting the
test leads into the SOURCE
+
and
-
jacks as shown in
Figure 7. Use source mode whenever you need to supply
current into a passive circuit such as a current loop with
no loop supply. Source mode depletes the battery faster
than simulate mode, so use simulate mode whenever
possible.
The display looks the same in source and simulate
modes. The way to tell which mode is in use is to see
which pair of output jacks is in use.