Fluke Welder 787 User Manual download pdf (Page 28)

787

Users Manual

Producing a Steady mA Output

When the rotary switch is in the OUTPUT [ mA position,

and the OUTPUT jacks are connected to an appropriate

load, the meter produces a steady mA dc output. The

meter begins sourcing or simulating 0%. Use the

pushbuttons to adjust the current as shown in Table 8.

Select either sourcing or simulating by choosing the

SOURCE or SIMULATE output jacks.

If the meter cannot deliver the programmed current

because the load resistance is too high or the loop supply

voltage is too low, dashes (-----) appear on the numeric

display. When the impedance between the SOURCE

jacks is low enough, the meter will resume sourcing.

Note

The STEP pushbuttons described on the next

page are available when the meter is producing a

steady mA output. The STEP pushbuttons go to

the next multiple of 25%.

Table 8. mA Output Adjust Pushbuttons

Pushbutton Adjustment

COARSE

Adjusts up 0.1 mA

FINE

Adjusts up 0.001 mA

FINE

Adjusts down 0.001 mA

COARSE

Adjusts down 0.1 mA

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 49 50

No comments

Fluke Welder 787 User Manual Page 28