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170
9 2331-20 POWER METER MODULE
9.3.1 Installing the Module
(1) Installing the Module Base
Fasten the module base to a DIN rail or the wall according to the
procedure described in the
19 "2391-01, 2391-02, 2391-03 MODULE
BASE"(P.305)
or
20 "2392-01/02 MODULE BASE"(P.319)
series
MODULE BASE instruction manual.
9.3 Preparations
• Note the following maximum input voltage.
U INPUT:AC300 Vrms, 424.3 V Peak
CLAMP SENSOR INPUT: AC 1.5 Vrms, 2.2 V Peak
ALARM:DC 30 V
Attempting to measure voltage in excess of the maximum
input could destroy the instrument and result in personal
injury or death.
• The maximum rated voltage between input terminals and
ground is 300 VrmsAC. Attempting to measure voltages
exceeding 300 VrmsAC. with respect to ground could dam-
age the instrument and result in personal injury.
• Do not connect to the instrument any current sensor other than
the clamp sensor dedicated to the instrument. Other sensors
could lead to instrument damage due to excessive input power.
• Avoid dropping the clamp or subjecting it to other impact, since
this could damage the mating surface of the core and adversely
affect measurement.
• Measurements are degraded by dirt on the mating surfaces of
the clamp-on sensor, so keep the surfaces clean by gently wip-
ing with a soft cloth.
• If the power supply produces noise, it is recommended to use a
noise filter.
• If the power supply line or signaling line is likely to induce surges
during electrical storms, etc., insert a dedicated lightning
arrester between each line and the installed device to protect the
module.
Do not mount the module base on the ceiling where it may fall off.