User's Guide

3-10
Edition 2. Ref. No: 306010E
Saab TankRadar
®
ProElectrical Installation
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F
Cables
Depending on local requirements, cable
glands or explosion proof conduits must
be used for connection to the non-
intrinsically safe junction box (EEx e).
For the connection to the instrinsically
safe junction box (EEx i) use cable
glands with integral shield connection
for cable diameter 6-12 mm or conduit.
Use shielded instrument cable 0.5 mm
2
(AWG 20) for analog outputs and serical
communication.
Safety
The TankRadar Pro enclosure is flame-
proof and may not be opened while the
transmitter is energized and a flammable
atmosphere is present. Saab Tank Con-
trol will not take any responsibility for
local regulations defining conditions
when flameproof enclosures are allowed
to be opened when energized.
Note! Make sure that you do not mix
up intrinsically safe and non-
intrincisally safe wires.
Power Supply
You can use either DC or AC, depend-
ing on what type power supply unit that
is installed in the transmitter. Nominal
supply voltage is:
• 24-48 VDC,
• 100-240 VAC, 50/60 Hz.
See label on the transmitter housing for
information on which supply voltage to
use.
There is no voltage selector in the
electronics compartment since the
transmitter power supply unit automati-
cally adapts to the available voltage
within specified limits.
Grounding
CENELEC
The flameproof enclosure must be
connected to a potential equalizing
network or the tank shell or according to
national code of practice.
This grounding also serves as electrical
safety ground. Additional connection to
the protective ground terminal of termi-
nal X1 in Junction Box EExe is not
recommended except where required
according to national code of practice. A
ground loop with circulating current
may occur. See also the Special Safety
Instruction.
FM
Grounding is accomplished through the
conduit pipes.