09-2018
file: ISAFE3-OperationManual_EN_DE.R4.VEXH.docx
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Vallen ISAFE3 Operation Manual Operation Manual
2.2
Foreseeable misuse
Do not install/operate the AE-sensor ISAS3 in mines.
Do not expose the AE-sensor ISAS3 to environment with temperature exceeding 60°C or on
test objects with surface temperature higher than 60°C.
Do not expose the AE-sensor ISAS3 to ambient pressure higher than 12 bar.
Do not install/operate the signal isolator SISO3 in an explosion hazardous area.
Do not install/operate the signal isolator SISO3 in an environment with temperature exceeding
60°C.
Do not install/operate the signal isolator SISO3 in an environment of pollution degree 3 or
larger. For pollution degree see glossary. Do not install/operate the AE-sensor system ISAFE3 if
any of its components (ISAS3, SISO3, HISO3 or cables) show any visible defect.
2.3
Safe operation of the sensor system ISAFE
Set up
Please follow the mounting instructions of section 9. Make sure that you have the permission of
the operator of the object under test to carry out the work as described in the mounting
instructions.
Power supply connection
The signal isolator receives DC-power over the combined signal/power cable from the AE
system. Use only Vallen-provided cables or cables that have been approved by Vallen Systeme
to connect a signal isolator to a signal processor providing 28 V
DC
power supply.
Install all cables in a safe way, avoiding stumbling and stepping on the cable. Please note the
specified bending radius for each cable.
Ground connection
Make sure that each AE-sensor is grounded properly. Use a cable as short as possible with
cross section of at least 4 mm². Make sure that each AE-sensor is grounded before it goes into
operation.
Damage
Do not apply power to a signal isolator if it is obvious that a component of the AE-sensor system
is damaged. In such a case make sure that it cannot be used by any other person.
Environmental conditions
Only use AE-sensor system ISAFE3 in environments that comply with environmental conditions
specified in the given specification. Please make sure that dust or any fluid cannot enter the
signal isolator. The HISO3 box was developed to protect the SISO3 (IP54).
Repairs
Only qualified personnel (see section 2.4) may open and repair equipment. Only replacement
parts may be used that comply with the safety regulations of the equipment. Before removing
cover parts make sure that no power is applied to the equipment.
