5
T538 protection relays
TECSYSTEM S.r.l ®
5) MEASURE SIGNALS TRANSPORT
All the transport cables of the Pt100 measure signals must absolutely:
be divided from the power ones
be realized with shielded cable with twisted conductors
have a section of min 0,5 mm²
be twisted if you have not any shield
be firmly fixed in the terminal board
have tinned or silvered conductors
All the serie “T” units have the sensors linearization with a max error of 0,5% v.f.s..
TECSYSTEM srl has realized a special cable for the measure signal transport with
all the protection requirements in accordance with CEI Normes:
mod. CT-ES
6) WARRANTY
The serie “T” units are under warranty for 12 months from the delivery date signed on
the unit.
The warranty is recognised when the unit breaks down due to some production faults or
insufficient calibration.
The warranty is not valid when the unit is tampered with or when it has been damaged
for a wrong sensors connection or wrong power supply, out of the max working limits
(20÷270 Vac-dc). The warranty is not valid when the unit has been fulminated by exces-
sive transitory voltages. In this case TECSYSTEM Srl does not answer for damages
caused by faulted or defective units. All the delivery expenses (there and back) of the
unit must be paid by the Customer
In case of dispute, the qualified FORUM is the one in Milan.
The warranty is always F.CO our Company in Corsico.
7) PT100 EXTENSION CABLE: TECHNICAL SPECIFICATIONS
Cable 20xAWG 20/19 cu/stg
Section 0,55 mm²
Antiflame Insulation PVC105
In accordance with CEI 20.35 IEC 332.1
Max. working temperature: 105°C
Conformation : 4 terns of numbered conductors (1-1-1.........4-4-4)
RRW twisted and coloured conductors
Cu/stg Shield
PVC Antiflame protecting covering
External diameter 9,0 mm
Skeins of 100 m
All the transport cables of the Pt100 measure signals must absolutely:
5) MEASURE SIGNALS TRANSPORT
7) PT100 EXTENSION CABLE: TECHNICAL SPECIFICATIONS
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