Fluke ProcessMeter 787B User Manual

ProcessMeter™
Using the Current Output Functions
25
Manually Stepping the mA Output
When the rotary function 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 step the current up and down in 25 %
increments as shown in Table 9. See Table 10 for mA
values at each 25 % step.
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 COARSE and FINE adjustment pushbuttons
described in Table 8 are available when
manually stepping the mA output.
Table 9. mA Stepping Pushbuttons
Pushbutton Adjustment
X
M
% STEP
Adjusts up to the next higher 25 %
step
% STEP
G
W
Adjusts down to the next lower
25 % step

Span Check
Sets to 100 % value
Span Check

Sets to 0 % value
Table 10. mA Step Values
Value (for each span setting)
Step 4 to 20 mA 0 to 20 mA
0 % 4.000 mA 0.000 mA
25 % 8.000 mA 5.000 mA
50 % 12.000 mA 10.000 mA
75 % 16.000 mA 15.000 mA
100 % 20.000 mA 20.000 mA
120 % 24.000 mA
125 % 24.000 mA

Fluke ProcessMeter 787B Specifications

General

Battery life	140 h
Battery size	AA
Battery technology	Alkaline
Number of batteries supported	4
Manual	Yes
Loop voltage	1000 V
Drop proof up to	1 m
Operating vibration	2 G
Storage temperature (T-T)	-40 - 60 °C
Operating temperature (T-T)	-20 - 55 °C
Operating relative humidity (H-H)	0 - 95 %

Weight and Dimensions

Depth	50 mm
Width	100 mm
Height	203 mm
Weight	600 g