Mercury 1400 User Manual

TEST FOR SHORTS
1. With the function switch set to test for SHORTS, connect the in-
sulated cli~ across the capacitor to be tested, and observe the
indicator tube on your 1400 panel.
2. If the capacitor is not shorted, the bars will remain open. If the
capacitor is shorted, the bars will clos e.
3. The
results shown by your Model 1400 are accurate whether the
capacitor under test is in-circuit or out-of-circuit. Circuit shunt
resistances and shun t coils with as little as 6 Ohms impedance
will not affect the accuracy of the test.
TEST FOR OPENS
1. Rotate the function switch to the position marked OPENS. Con-
nect the insulated clips across the capacitor to be tested" and
observe the indicator eye on your 1400 Panel.
2. If the capacitor is not open the bars will remain open. If the
capacitor is open, the bars will close.
3. The nature of the high frequency test provided by the Model 1400
takes shunting components into account. Tests for OPENS will be
accurate whether made in-circuit or out-of-circuit.
ELECTROLYTIC VALUE TEST :
1. The test clips can be connected directly across any electrolytic
capacitor. Polarity is not important since the 1400 provides an
AC test signal of sufficiently low voltage so as not to damage
any
low-rated capacitor.
2. For multiple electrolytics, test each section separately. Connect
one test clip to the common negative terminal, and connect the
other test clip to each of the positive leads, one at a time.
Common
negative terminal is usually the can (or chassis ground)
for
metal-cased electrolytics, or the black wire in multi-section
tubular electrolytics.
5

Mercury 1400 Specifications

General

Brand	Mercury
Model	1400
Category	Test Equipment
Language	English