INSTRUCTION MANUAL
IM289-U v0.3
Iso-4
4 inputs channel residual current monitoring
GENERAL INFORMATION
The Iso-4 allow monitoring the residual current flowing into 4 external toroidal
transformer.
The four display is made by three digit red led and show the instantaneous
values of currents measured, with automatic scaling.
AVAILABLE TYPES
- Iso-4
in flush mounted version for panel DIN 96X96mm with minimized
depth
MODEL
- ISO-4
4 Current inputs from toroidal current transformer
ISO-4-485
Same as ISO-4 with EIA-RS485 Modbus interface
ISO-4-485-A
Same as ISO-4 485 with Analog Output 0-20/4-20 mA
ACCESSORIES AND OPTIONS
accessories: transparent cover for protection.
options: external module for more analog or digital outputs (on request)
rd
3
Harmonic filter
MEASURED PARAMETERS
measured parameters
Residual current
Instantaneous maximum residual current
Maximum average residual current
Average residual current
INSTALLATION
INSTRUCTIONS FOR THE USER
Read carefully the instructions/indications contained in this manual before installing and using the instrument.
The instrument described in this manual is intended for use by properly trained staff only.
SAFETY
This instrument has been manufactured and tested in compliance with EN 61010-1 standards. In order to maintain these
conditions and to ensure safe operation, the personnel must comply with the indications and markings contained in the manual.
When the instrument is receive, and before being installed, check that it's ok. And it has not suffered any damage during transport.
When starting installation make sure that the operating voltage and mains voltage are compatible with the device instructions. The
auxiliary supply shouldn't be earthed. Maintenance and/or repair must be carried out only by qualified and authorized personnel. If
there is ever suspicious that there is a lack of safety, during operation, the instrument must be disconnected and cautions taken
against accidental use.
Operation is no longer safe when: - The measured values are obviously wrong or unreasonable. / - The instrument doesn't
work. / - There is clearly visible damage. / - After serious damages occurred during transport. /- After lengthy storage
under unfavourable conditions.
Iso-4
Instruction manual
measuring unit
[A]
[A]
PEA
[A]
ITH
[A]
AVG
IM289-U v0.3
identification initials
L1
L2
L3
L1
L2
L3
L1
L2
L3
L1
L2
L3
L4
L4
L4
L4
pag. 1
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