5322A
Calibration Manual
72
RCD Function
Follow these steps to verify the RCD function.
1. RCD Trip current ammeter test:
a. Connect the current output terminals of the 5522A to the Product PE-N terminals. Set
the frequency to 55 Hz on the 5522A
b. Select
Setup
>
Calibration
>
RCD Trip Current
. Select the first current range RCD I01.
c. Set the nominal output current on the 5522A, see
d. Compare the measurement on the Product with the limits in
2. RCD Trip time test:
The calibration function enables trip time verification in the RCD function. In the verification
procedure Product generates passive pulses with frequency 2/T with duty cycle 1:1 in the
range of T 10 ms to 5 s.
a. To perform Trip time verification test connect the instruments as shown in
b. Select
Setup
>
Calibration
>
Trip time
position. Set the trip time to value 1000 ms.
Figure 39. RCD Verification Connections
c. Set 5 V dc on the 5522A and turn the output ON.
d. Set the time interval function on the counter to start rise edge, stop fall edge. Set 50
Ω
or 100 k
Ω
input impedance on the counter. If the counter does not have this function,
use a single resistor with a 1
Ω
to 10 k
Ω
/ 0.1W value connected in parallel to the
counter input.
0
1
2
4
5
7
8
/
+
OPR
E
STBY
5522A
CALIBRATOR
Counter
INP
R=1-10 kOhm
COM
Fluke 5322A
Fluke 5522A