Wavetek XP Series, User Manual

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3
Symbols Used in this Manual
B
Battery
W
Refer to the manual
T
Double insulated
X
Dangerous Voltage
F
Direct Current
J
Earth Ground
B
Alternating Current
R
Audible tone
I
Fuse
)
Canadian Standards Association
P
Complies with EU directives
z
Non-contact Voltage
Making Measurements
Verify Instrument Operation
Before attempting to make a measurement, verify that the instrument is operational
and the battery is good. If the instrument is not operational, have it repaired before
attempting to make a measurement.
Range Selection
In addition to autoranging (Models 15XP and 35XP only) you can manually select
and lock a range by pressing the RANGE button. RANGE appears on the display to
indicate that manual ranging is active and the range is locked. When appropriate,
each subsequent press of the range button steps the meter to the next higher
range. When the highest range is reached the next press returns the meter to the
lowest range. To return to autoranging press the RANGE button. If RANGE still
shows on the display, autoranging is not available for the selected function. Use
autorange for all initial measurements. Then, when appropriate, use the RANGE
button to select and lock a range.
XW
Warning
To avoid electrical shock while manual ranging, use the display
annunciators to identify the actual range selected.
Correcting an Overload (
0o
or
-0o
) Indication
W
An
0o
or
-0o
indication may appear on the display to indicate that an overload
condition exists. For voltage and current measurements, an overload should be
immediately corrected by selecting a higher range. If the highest range setting does
not eliminate the overload, interrupt the measurement until the problem is identified
and eliminated. The
0o
indication is normal for some functions; for example,
resistance, continuity, and diode test.
Measuring DC Voltage See Figure -1-
1. Set the Function Switch to
v
.
2. Select the desired RANGE (5XP only).
3. Connect the test leads: Red to
E
, Black to COM.
4. Connect the test probes to the circuit test points.
5. Read the display, and, if necessary, correct any overload (
0o
) conditions.