Basic Measurements - Fluke 1587 FC User Manual

1587 FC/1587/1577
Users Manual
Warning
To prevent possible electric shock or personal
injury, do not use the VFD Low-Pass Filter
function to verify the presence of hazardous
voltages. Voltages that are greater than what is
indicated may be present. First, make a voltage
measurement without the filter to detect the
possible presence of hazardous voltage. Then,
select the filter function.
When using the VFD Low-Pass filter function, the
Meter goes to Manual mode. Select ranges by
pressing the r button. Autoranging is not
available with the Low-Pass filter function.
800 Hz
100 Hz
Figure 1. VFD Low Pass Filter
18
Note

Basic Measurements

The figures on the following pages show how to make
basic measurements.
When connecting the test leads to the circuit or device,
connect the common (COM) test lead before connecting
the live lead; when removing the test leads, remove the
live lead before removing the common test lead.
To prevent possible electrical shock, fire, or
personal injury:
•
Disconnect circuit power and discharge all
high-voltage capacitors before you
measure resistance, continuity,
capacitance, or a diode junction.
•
Remove circuit power before you connect
the Product in the circuit when you
measure current. Connect the Product in
series with the circuit.
bav16f.eps
For better accuracy when measuring the dc offset of an ac
voltage, measure the ac voltage first. Note the ac voltage
range, then manually select a dc voltage range equal to or
higher than the ac range. This procedure improves the
accuracy of the dc measurement by ensuring that the input
protection circuits are not activated.
Warning