16
EasyLine EL3000 Series Commissioning Instructions
Shut-off Valve
Install a shut-off valve in the sample gas line (definitely recommended
with pressurized sample gas).
Purging of the gas line system
Provide a means for purging the gas line system by feeding in an
inert gas, e.g. nitrogen, from the gas sampling point.
Installation Material
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
Signal Lines
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
1 mm
2
(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
2
, i.e. the cross-section of the stranded wire may
not be more than 0.5 mm
2
. The PZ 6/5 crimping tool of
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-
section 0.25 mm
2
(e.g. Thomas & Betts, Type LiYCY).
Max. length of the RS232 leads 15 m.
Power Supply Lines
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.
