Site Prep - International Installations
Field Wiring
2-8
Field Wiring
PROBE TO TLS-IB LOCATION
(LEVEL 1 INSTALLATIONS ONLY)
Pull one two core, Probeflex cable from the TLS-IB location to each probe location.
An explosion could occur if other, non–intrinsically safe wires share TLS intrinsically
safe wire conduits or wiring troughs. Conduits and wiring troughs from probes and
sensors to the console must not contain any other wires.
At least 2 metres of free cable must be left for connection at both the TLS-IB and the probe
locations
.
Ensure that
all
cables are correctly identified. All probe field wiring
must
be legibly and permanently labelled with
the tank number.
Failure to correctly mark probe field wiring may lead to rework, delays in system installation
and additional charges.
MAXIMUM CABLE LENGTHS
A maximum of 305 metres of cable length per sensor or probe must be observed.
DUCTING ENTRY TO TLS-IB LOCATION
Connection to the TLS-IB may only be made by a Veeder–Root authorised engineer.
The cable route from the ducting entry to the TLS-IB must be clearly defined and all necessary preliminary work
undertaken. All necessary holes must be drilled through walls, counters, etc.; cable trays fitted, ducting with draw
cords installed and adequate access for the installation of the cable provided.
Equipment Connected To The RS-232 Port
Any equipment such as a pump controller or point–of–sale terminal connected to the RS-232 port must meet the
following criteria:
• The equipment must have an EIA standard RS-232C or RS-232D communications protocol.
• The equipment must
NOT
be installed over or in a hazardous location.
The RS-232 Interface can be used for direct local attachment of terminals if the cable run is no more than 15
metres. Veeder-Root do not guarantee proper equipment operation if RS-232 cable runs exceed 15 metres.
RS-232 cable runs longer than 15 metres could result in data errors.
Run cable from the peripheral equipment location to the system console location. At least 1 metre of free cable
must be left for subsequent connection at both ends.
Core Colours
Black, red, green, white
Nominal Outside Diameter
4.2 mm
Recommended UK Supplier:
RS Components Ltd., Stock number (500metre drum) 368–312
Table 2-2. Data Transmission Cable Specification (GVR P/N 4034-0147)
Cable Type
2 x twisted pair, PVC insulated, foil wrapped, common drain
WARNING
NOTICE
NOTICE
NOTICE
