ABB EasyLine Series Instructions For Installation Start-Up And Operation page 16

16 EasyLine EL3000 Series Commissioning Instructions
Shut-off Valve
Purging of the gas line system
Installation Material
Signal Lines
Power Supply Lines

Install a shut-off valve in the sample gas line (definitely recommended
with pressurized sample gas).

Provide a means for purging the gas line system by feeding in an
inert gas, e.g. nitrogen, from the gas sampling point.
19-inch Case (Model EL3020)

4 oval head screws (Recommendation: M6; this depends on the
cabinet/rack system)

1 pair of mounting rails (Design depends on the cabinet/rack system),
length approx. 240 mm corresponding to approx. 2/3 of the case
depth
Wall-mounting Case (Model EL3040)

4 screws M8 or M10

Select conductive material which is appropriate for the length of the
lines and the predictable current load.

Notes concerning the cable cross-section for connection of the
I/O modules:

The max. capacity of terminals for stranded wire and solid wire is
2
1 mm (17 AWG).

The stranded wire can be tinned on the tip or twisted to simplify
the assembly.

When using wire end ferrules, the total cross-section may not be
more than 1 mm
not be more than 0.5 mm
Weidmüller & Co. must be used for crimping the ferrules.

Max. length of the RS485 leads 1200 m (max. transmission rate
19200 bit/s). Cable type: 3-core twisted-pair cable, cable cross-
2
section 0.25 mm

Max. length of the RS232 leads 15 m.

If the supplied mains lead is not used, select conductive material
which is appropriate for the length of the lines and the predictable
current load.

Provide a mains isolator or a switched socket-outlet, in order to be
able to disconnect all the power from the gas analyzer if required.
2
, i.e. the cross-section of the stranded wire may
2
. The PZ 6/5 crimping tool of
(e.g. Thomas & Betts, Type LiYCY).