14
7. Wiring
7-1. Unscrew the cover. (Rotate counterclockwise)
7-2. Open the wire entry of terminal block by pushing
on the actuating lever with flat screwdriver.
(Recommended flat screwdriver:
Axis diameter
φ
3mm and blade tip size 2.6mm)
7-3. Insert wires as shown on the panel, positive (+) to terminal
entry No.1 and negative (-) to terminal No.2.
Please wire so that there is no mistake.
Release actuating lever of the terminal.
7-4. Connect the ground wire to internal earth ground terminal.
7-5. Screw the cover on tightly.
Important:
The size of the acceptable cable is
max. 1.25mm
2
(0.3mm
2
to 1.25 mm
2
).
(AWG22 to 16)
Warning:
Do wiring when the instrument is powered OFF.
Avoid short circuit and reverse polarity.
The instrument must be supplied with
DC power supply, do not apply different voltage.
Tighten the cover and lead outlet firmly after
wiring completed.
Warning:
Do not connect the Data communication cable to the
Adjustment
communication
check pin at a dangerous
place.
HART check pin
Use a wire more than 1.25sq as an earth wire.
!
!
Fig. 12. Cover detaching
Fig. 13. Wiring technique
Flat screwdriver
Cover
Lead outlet
ＰＣ
（
D-class groundin
）
LCD
HART I/F
DC24V
4..20mA
M WLM -P R2 6
1 2
+ -
Ammeter
DC4
〜
20mA
AC−DC
converter
（DC24V）
DC4
〜
20mA
DC24V
DC4〜20mA
Safety barrier
KFD2-STC4-Ex1
3
1
(−)
(＋)
15
14
9
8
7
HART
(−)
(＋)
(−)
(＋)
AC Power
Max.50
0
Ω
Hazardous area
A non-hazardous area
!
Fig.14.
Connection example for KFD2-STC4-Ex1
