Fluke 5320A User Manual

Calibrating Instruments
Calibrating RCD Test Functions 4
4-25
level for the specified trip time. In addition to the measured UUT trip current, the
Calibrator displays the Power/Touch voltage. Figure 4-16 shows the Calibrator’s RCD
trip time process.
RCD function is activated.
Full power line voltage is
presented on output terminals.
No current is flowing through
UUT.
Start point on UUT.
Test current starts to flow
through UUT.
Calibrator has recognized trip level
I level x I nominal level was reached.
Calibrator evaluates time point
where Trip period is ended.
Set trip time is
counted down.
End of trip time period.
Calibrator disconnects
output terminals.
Trip Time
Trip Current (mA)
Time (ms)
ehq019.eps
Figure 4-16. RCD Trip Time Process
To perform an RCD Trip time calibration:
1. Press R.
2. If RCD Trip Time is not already displayed, press the Mode softkey.
3. Using the cursor keys or rotary knob, highlight the Trip Time selection and either
press the Select softkey or press in on the rotary knob.
Parameters which are set through the front panel are nominal trip current, current
multiplier, current level and series resistance. To set one of these parameters, see the
appropriate section below.
4. If the displayed trip time is not the desired time, use the cursor keys, keypad or rotary
knob to set the desired trip time. Trip time range is 10 ms to 5 seconds.
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.
5. Referring to the terminals part of the display, connect the UUT to the Calibrator.
6. Ensure the nominal trip current and the current multiplier value on the UUT, are
equal to the values set in the Calibrator.
7. Press O to start the calibration process.

Fluke 5320A Specifications

General

Brand	Fluke
Model	5320A
Category	Test Equipment
Language	English