IM 1E10D0-01E
3-11
3. INSTALLATION
CAUTION
Since A, B, SA, SB, and C all operate at differ-
ent electrical potentials, securely insulate them
from each other so they do not touch.
The shields must not be allowed to touch each
other or to touch the case.
Cover each shield with vinyl tube or wrap in vinyl
tape.
NOTE
Conductors A and B carry the signal from the
electrodes, and C is at the potentials of the liquid
it self (signal common) . Shields SA and SB are
kept at the same potentials as the individual
electrodes (these are actively driven shields).
This is done to reduce the effect of the distrib-
uted capacitance of the cable at long cable
length. Note that, since the signals from the
individual electrodes are impedance converted
inside the converter, errors will result if they
come in contact with any other component.
Great care must be taken in the cable end
treatment.
20 (0.8)
ø10.5 (0.4)
AM011*A
L (SPECIFIED LENGTH)
150
(5.9)
8 (0.3) Max.
150 (5.9)
80 (3.15)
70 (2.76)
90 (3.5)
55 (2.2)
90 (3.5)
50 (1.97)
25 (0.98)
SA
SB
A
C
B
A
C
B
8 (0.3) Max.
(WHITE)
(BLACK)
(RED)
(WHITE)
(BLACK)
(RED)
Unit : mm(inch)
F030402.EPS
On the converter
side
On the flow tube
side
Figure 3.4.2
Treatment of Dedicated Signal Cable
(2) Excitation Cable
Please use Polyvinyl chloride insulated and sheathed
control cables (JIS C3401) or Polyvinyl chloride
insulated and sheathed portable power cables (JIS
C3312) or equivalents.
Outer Diameter
• 6.5 to 12mm in diameter (10.5 to 11.5 mm for
waterproof gland / ECG, /ECU)
Nominal Cross Section
• Single wire; 0.5 to 2.5mm
2
, Stranded wire; 0.5 to
2.5mm
2
60
(2.4)
85
(3.3)
EX1
EX2
EX1
EX2
On the converter side
On the flow tube side
F030403.EPS
Unit: mm (inch)
Figure 3.4.3
End Treatment of Excitation Cable
3.4.4
Connnection to SE14 Magnetic
Flow Converter
Flow Tube Model SE100DJ/EJ, SE200DJ/EJ
and SE300DJ/EJ
Connect the flow tube and converter in the following
method.
EX2
EX1
F030404.EPS
A
B
C
SA
(See Note below)
A
SB
(See Note below)
C
EX1
EX2
B
A
C
EX1
EX2
B
Dedicated Cable
AM011-4
Converter
Terminals
Connected Terminals
Flowtube SE100DJ/EJ,
SE200DJ/EJ and SE300DJ/EJ
Note: Terminate those shielding wire
terminals using tape.
Excitation Cable
Magnetic Flow Tube
SE100DJ/EJ, SE200DJ/EJ and SE300DJ/EJ
Magnetic Flow Converter
SE14
P
- P
+
I- I+
L
/+
N
/-
P
L
S
/A
L
M
O
U
T
C
U
R
O
U
T
P
O
W
E
R
S
U
P
P
LY
E
X
1 E
X
2 C
S
A
A
B
S
B
G
!
Figure 3.4.4
Connection
3.4.5
Wiring Ports
Please select the most suitable standard of wiring
procedure for the wiring ports by customer’s own.
A : Using the Waterproof Gland
IMPORTANT
To prevent water or condensate from entering
the converter housing, waterproof glands are
recommended. Do not over-tighten the glands or
damage to the cables may result. Tightness of
the gland can be checked by confirming that the
cable is held firmly in place.
