To use the test leads for measurements:
1.
Insert the test leads into the proper input jacks. See Figure 7.
2.
Press the correct button for the measurement.
3.
Apply the test leads.
4.
Observe the reading on the main display. In mA mode, the
secondary display shows the reading in percentage of span.
Figure 7. Taking Measurements with the Test Leads
Current and Voltage Output Functions
Both Meters provide steady, stepped, and ramped current output for
testing 0-24 mA current loops. Additionally, the 773 provides voltage
output to 10 V. To access these functions, press
Choose Source mode to supply current or voltage.
Choose Simulate mode to regulate current in an externally powered
current loop.
Choose Loop Supply mode to power an external device and
measure mA loop current.
Sourcing mA
Use mA Source mode whenever it is necessary to source current into a
passive circuit such as a current loop with no loop supply. Source mode
depletes the battery faster than Simulate mode.
To enter Source mode for the 772, see Figure 4:
1.
Insert the test leads into the -mA and +mA jacks.
2.
Press L.
T
3.
Press
LOOP PWR
until Source appears on the display.
mA SCALE
mA IN/OUT
HART
T
as necessary.
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