Display; Measurement Unit Symbols - Fluke 78 User Manual

78
Users Manual

Display

Readings are shown on a liquid crystal display (LCD).
Symbols on the display indicate what the meter is doing.
See Figure 3 and Table 2.
If a measurement is too large to be displayed, OL (over-
load) is shown on the display and the whole bar graph
lights.
Warning
To avoid false readings, which could lead to
possible electric shock or personal injury, re-
place the battery as soon as the battery indi-
cator (N) appears.
8
Table 2. Measurement Unit Symbols
Symbol
AC Alternating current or voltage
DC Direct current or voltage
V Volts
Hz Hertz (cycles/second). Frequency
RPM1 Revolutions/minute. 1 RPM count/spark
RPM2 Revolutions/minute. 2 RPM counts/spark
q
Degrees Celsius
p
Degrees Fahrenheit
o L
Number of Cylinder
% Percent (for duty cycle readings)
r
Degrees of rotation (for dwell readings)
Ohms. Resistance
k Kilo. Units x 1,000
M Mega. Units x 1,000.000
m Milli. Units x 1/1,000
Meaning