Fluke 5320A User Manual

5320A
Users Manual
4-22
Neutral
Line
Front Panel
Z
L
, Z
GND
, RCD
N
L
mA
Compensator
Fixed Mains
Socket/Outlet
ehq018.eps
Figure 4-14. Simplified RCD Scheme
Calibrating RCD Trip Current Function
RCD Trip Current calibration is performed by the Calibrator monitoring current from the
UUT and displaying the measured current when it reaches the nominal set value. The
output terminals are also disconnected when the trip current level is reached. Typically
UUT trip current increments from 30 to 150 % of the nominal trip current in steps of
several percent.
Note
The incremental step level for RCD Trip current from a UUT depends on
the manufacturer’s design and lies between 2 and 10 % per step. Full wave
or pulse trip current may be used depending on the UUT.
To perform an RCD Calibration:
1. Press R.
2. If RCD Trip Current is not already displayed, press the Mode softkey.
3. Using the cursor keys or rotary knob, highlight the Trip Current selection and either
press the Select softkey or press in on the rotary knob.
The last nominal trip current and the series resistance settings are displayed in the
PARAMETERS area of the display. If the nominal trip current setting needs to be
changed, see “To change the nominal trip current” section below. If the series
resistance setting needs to be changed, see “To change the series resistance” section
below.
XWWarning
To avoid electric shock, ensure the Calibrator is in standby
while making connections to the L and N connectors. Lethal
voltages are present on the L and N connectors during RCD
Trip Current calibration.
4. Referring to the terminals part of the display, connect the UUT to the Calibrator.
5. Press O to start the calibration process.

Fluke 5320A Specifications

General

Brand	Fluke
Model	5320A
Category	Test Equipment
Language	English