9
Testing Battery Voltage
(5XP-A only) (See Figure 12)
1. Set the Function Switch to the appropriate BATT
setting, 1.5 V or 9 V.
2. Connect the test leads: Red to BATT 1.5 V or BATT 9 V,
Black to COM.
3. Connect the test probes across the battery. The meter
applies an appropriate load to the battery.
4. Read the display. A good 1.5 volt battery should
measure >1.2 V, and a good 9 volt battery should
measure > 7.2 V.
Testing Logic Levels
(15XP-B only) (See Figure 13)
The 15XP-B tests logic levels for TTL logic. The meter displays
0o
plus a
∧
for a high-level (true) condition. The meter beeps
and displays an
0o
and a
∨
for a low-level (false) condition.
See Specifications for the logic 1 and logic 0 voltage limits.
Out-of-limits indications are displayed as
0o
only, no
∧
,
∨
or
beep occur.
1. Set the Function Switch to LOGIC.
2. Connect the test leads: Red to V
, Black to COM.
3. Connect the black lead to logic common.
4. Connect the red lead to the logic test point.
5. Read the display.
ADDITIONAL FEATURES
Input Test Lead Warning
The meter emits a continuous tone when a test lead is
placed in the mA or A input jack and the Function/Range
Switch is not set to a correct current position. (If the meter
is connected to a voltage source with leads connected for
current, very high current could result). All current ranges are
protected by fast acting fuses.
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