Fluke 789, User Manual, Page: 19 / 54

ProcessMeter
Getting Acquainted with the Meter
11
Table 4. Rotary Function Switch Positions for mA Output
No. Position Default Function Pushbutton Actions
A
OUTPUT
X
Test leads in
SOURCE:
Source 0 % mA
Test leads in SIMULATE:
Sink 0 % mA
% STEP
X
or
W
: Adjusts output up or down to the next 25 % step
COARSE
X
or
W
: Adjusts output up or down 0.1 mA
FINE
X
or
W
: Adjusts output up or down 0.001 mA
E
sets output to 0 %
F
sets output to 100 %
B
OUTPUT
Y
€onp
Test leads in
SOURCE:
Source repeating
0 % -100 %-0 %
slow ramp (
€
)
Test leads in SIMULATE:
Sink repeating
0 % -100 %-0 %
slow ramp (
€
)
J
(Blue) cycles through:
•
Fast repeating 0 % -100 % - 0 % ramp (
o
on display)
•
Slow repeating 0 % -100 % - 0 % ramp in 25 % steps (
n
on
display)
•
Fast repeating 0 % -100 % - 0 % ramp in 25 % steps (
p
on
display)
•
Slow repeating 0 % -100 % - 0 % ramp (
€
on display)
Table 5. Rotary Function Switch Position for Loop Supply
No. Position Default Function Pushbutton Actions
C
mA
LOOP POWER
250
HART
Test leads in SOURCE:
Supply > 24 V loop power, measure mA
J
(Blue) cycles through:
•
250
Ω
series resistor for HART
communication switched in
•
250
Ω
series resistor switched out