Fluke 787 user manual Using the Current Output Functions, Source Mode

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.

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.

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

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