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4-3 Cautions in designing a system
CAUTION
・
Please design your system reflected to the statements in this paragraph. Unstable
power source and noise will cause false operation and false alarms of RI-2000R.
1. Use a stable power supply
False operations of the alarm contacts and output contacts may be expected when
instantaneous blackouts occur and for a while the system is unstable after RI-2000R is
started. Please use a backup power supply or take proper measures on the receiving
end.
2. Design considering radiating heat from RI-2000R
There is a ventilation fan on the top of the instrument. Please keep this part clear and
do not block it with anything. If you are installing RI-2000R inside a closed
instrumentation panel, please put on 2 fans on the top and the bottom to ventilate.
power supply
voltage
AC 200V/ AC 220V
（
in terminal voltage
）
Permissible time
of instantaneous
blackouts
Less than 10ms
（
RI-2000R will restart if the blackout exceeds 10ms
）
Please use an external uninterruptible power supply
to ensure continuous work.
Others
Please do not share power supplies with high power
loads and high frequency noise sources.
Use line filters and separate this instrument from
noise sources if needed.
