Repairs; Servicing Explosion-Protected Devices - Samson 4749 Mounting And Operating Instructions

13 Repairs

A defective position transmitter must be re-
paired or replaced.
NOTICE NOTICE
! !
Risk of damage to the position transmitter
due to incorrect repair work.
Î Do not perform any repair work on your
own.
Î Contact SAMSON's After-sales Service
for repair work.
13.1 Servicing explosion-
protected devices
If a part of the device on which the explosion
protection is based needs to be serviced, the
device must not be put back into operation
until a qualified inspector has assessed it
according to explosion protection
requirements, has issued an inspection
certificate or given the device a mark of
conformity. Inspection by a qualified
inspector is not required if the manufacturer
performs a routine test on the device before
putting it back into operation and the
passing of the routine test is documented by
attaching a mark of conformity to the device.
Inspection by a qualified inspector is not re-
quired if the manufacturer performs a rou-
tine test on the device before putting it back
into operation and the passing of the routine
test is documented by attaching a mark of
conformity to the device.
EB 4749 EN
Î Retain testing and servicing documents
as well as certificates issued by the man-
ufacturer or inspector together with other
safety-relevant documents for the device
or plant.
Replace explosion-protected components
only with original, routine-tested components
by the manufacturer.
Devices that have already been operated
outside hazardous areas and are intended
for future use inside hazardous areas must
comply with the safety requirements placed
on serviced devices. Before being operated
inside hazardous areas, test the devices ac-
cording to the specifications for servicing ex-
plosion-protected devices.
Repair of flameproof gaps
A repair of flameproof gaps is not permitted.
If a corresponding gap is damaged, the de-
vice must be replaced.
Maintenance, calibration and work on
equipment
Observe the maximum permissible values
specified in the certificates for intrinsically
safe circuits to ensure that components rele-
vant to explosion protection are not dam-
aged.
Repairs
13-1