NF BP4620, Instruction Manual

Page: 36 / 214

2.4 Connection to I/O terminals
BP4620
2-15
2.4.6 Connection to monitor output pin
To monitor the output voltage and output current, connect the monitor output terminal (MONITOR
OUT) on the front panel. For the connection, use a coaxial cable with a BNC connector. To monitor the
output voltage, connect this cable to the Vo terminal, and to monitor the output current, connect it to the
Io terminal.
The specifications of the monitor output terminal are as follows.

Output voltage monitor output
Monitor ratio: 1/100 of output voltage (1 V/100 V), in-phase
Monitor accuracy:

1.2 V of output voltage (1 M

monitor output load impedance)
Frequency characteristics: DC to 40 kHz:

0.5 dB
40 kHz to 400 kHz: +1 dB,

3 dB
(1 kHz reference, 1 M

monitor output load impedance)
Output impedance: 50


Output current monitor output
Monitor ratio: 1/20 of output current (1 V/20 A), in-phase
Monitor accuracy:

0.2A of output current (1 M

monitor output load impedance)
Frequency characteristics: DC to 20 kHz:

0.5 dB
20 kHz to 200 kHz: +1 dB,

3 dB
(1 kHz reference, 1 M

monitor output load impedance)
Output impedance: 50

Figure 2-9. MONITOR OUT Terminal
MONITOR OUT terminal