IM 1E10D0-01E
3-10
3. INSTALLATION
3.4 Wiring Precautions
This section is described wiring only for flow tube
side. Please see "Wiring" in SE14 Magnetic Flow
Converter Instruction Manual for converter side.
CAUTION
Confirm that all connections are corrected before
applying power to the instrument. Improper
wiring may damage the flow tube or converter.
NOTE
The terminal box cover is locked by special
screw. In case of opening the terminal box
cover, please use the Hexagonal Wrench
attached.
CAUTION
Be sure to lock the cover with the special screw
using the Hexagonal Wrench attached after
tightening the terminal box cover.
3.4.1
Grounding
CAUTION
Please be sure to connect function grounding of
ADMAG SE with cable of 2mm
2
or larger cross
section in order to prevent the influence of
external noise. And further connect the
grounding wire to the mark (100
Ω
or less).
3.4.2
General Precautions
Please give attention to the followings in wiring.
CAUTION
• Please pay attention to avoid the cable is
bended excessively.
• Please do not connect cables outdoors in case
of rain to prevent damages from dew formation
and to keep insulation inside the terminal box
of the flow tube.
• Please do not splice the cable between a flow
tube and a converter if it is too short. Please
replace the short cable with the cable which is
appropriate length wholly.
• The all cable ends are to be provided with
round crimp-on terminal.
• The signal cables must be routed in separate
steel conduit tubes or flexible tubes.
• Please keep conduit or flexible tube water-tight
using sealing tape.
• Please ground each of a flow tube and a
converter separately.
• Please cover each shield of the signal cable
with PVC tube or PVC tape to avoid contacting
between two shields; shield and case.
• When waterproof glands or union equipped
waterproof glands are used, the glands must be
properly tightened to keep the box watertight.
• Please be sure to fully tighten the terminal box
cover before the power is turned on.
• Please be sure to turn off the power before
opening the terminal box cover.
3.4.3
Cable Types
(1) Dedicated Signal Cable(AM011)
The flow signal is transmitted via this dedicated cable.
The cable is constructed with double shielding over the
two conductors, and used heat-resistant vinyl as the
outer jacket material.
Finished diameter:
10.5 mm (0.413in.)
Maximum length:
300 m (984 ft.)
Maximum temperature: 80
°
C (176
°
F)
Figure 3.4.1
Dedicated Signal Cable AM011
IMPORTANT
If the cable is longer than required, cut off any
extra length, rather coiling it up, and terminate
the conductors as shown in Figure 3.4.2. Avoid
using intermediate terminal boards to extend the
cable length, or this will interrupt the shielding.
