Vallen ISAFE3 Series, Operation Manual

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Vallen ISAFE3 Operation Manual - Operation Manual
USB Universal serial bus
USYC System interface of AMSY-6 to USB
13 Glossary
Automated sensor coupling verification:
A series of artificial burst AE, sequently sent by AE sensors, received by neighbored
AE sensors, and a data presentation that lets an operator easily verify proper
coupling quality of each sensor. Artificial burst AE is generated by

Pulse-Through
or

AST
Auto Sensor Test (AST):
The capability of an AE sensor-preamplifier-combination to send an internally
generated artificial AE burst for an

automated sensor coupling verification
AST control pulse:
A short-cut of the power supply voltage of an AE preamplifier, variable in duration,
for the

Auto sensor test (AST)
DIN rail:
A metallic rail of a standard type widely used for mounting industrial control
equipment inside an encapsulation. In this document the special form "Top hat rail
according to EN 50022", 35 x 7.5 mm, is addressed
Equipment protection level:
Level of protection assigned to equipment, based on its likelihood of becoming a
source of ignition and distinguishing the differences between explosive Gas
atmospheres (Ga, Gb, Gc), explosive dust atmospheres (Da, Db, Dc) and explosive
atmospheres in mines (Ma, Mb) (EN 60079-0:2009, 3.18)
Fourfold saturated:
Input voltage of an amplifier is 4 times above the linear range
Intrinsic safety:
Type of protection based on the restriction of electrical energy, within apparatus and
interconnections exposed to a potentially explosive atmosphere, to a level below that
which can cause ignition by either sparking or heating effects (EN 60079-11:2007)
Pulse Through:
The capability of a preamplifier to pass a pulse from the AE system to the sensor for
an

automated sensor coupling verification
Pollution Degree
Pollution degree is a classification according to the amount of dry pollution and
condensation present in the environment. This classification is important since it
affects creepage and clearance distances required to insure the safety of a product.
IEC-60664-1 has established four degrees of pollution severity:
Pollution Degree 1; No pollution or only dry, nonconductive pollution occurs. The
pollution has no effect (on the electrical conductivity)