TLS-IB Site Prep Manual Tank Lid Access Chambers
6
DANGER AREAS
If the underground storage tank to be fitted with a TLS system either contains or at any time has contained petroleum
products then the tank inspection chamber must be considered a hazardous environment as defined in IEC EN 60079-10
Classification of Hazardous Areas. Suitable working practices for this environment must be observed.
INTRINSIC SAFETY
The design of Veeder-Root products limits the power in the wiring to the in-tank probes and keeps this wiring physically
separated from any other. It is the responsibility of the contractor to maintain the effectiveness of these safety features by
preparing the installation site in accordance with the instructions and warnings which follow. Failure to do so could
create danger to lif e and property.
Circuitry within the probe and console barrier forms an intrinsically safe, energy limited system. This system makes the
probes suitable for use in hazardous locations. Probe wiring is intrinsically safe only when connected to the TLS-IB unit.
IMPORTANT! Substitution of specified components may impair intrinsic safety.
All probe wiring m ust be contained in dedicated ducts.
Tank Lid Access Chambers
ACCESS CHAMBER INSTALLATION
The installation of the tank access chamber is the responsibility of the customer or their local site contractor and not that
of Veeder-Root Environmental Systems Limited. However, there are certain requirements which need to be met to allow
the correct installation of Veeder-Root in–tank monitoring probes. A typical installation is illustrated in Figure 2.
WARNING
TLS System products will be operated near the highly combustible
environment of a fuel storage tank.
Failure to install these products according to the instructions contained in this
manual may result in explosion and personal injury.
It is essential that the warnings and instructions in this manual are carefully
read and followed to protect both the installer and others from serious or
fatal injury.
WARNING
An explosion could occur if other wires share ducts with intrinsically safe
probe wiring. Ducting from probes must not contain any other wiring circuits.
Failure to comply with this warning could result in explosion, death, serious
personal injury, property loss or equipment damage.
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