![YOKOGAWA DpharpEJX vigilantplant EJX910A Скачать руководство пользователя страница 35](http://html1.mh-extra.com/html/yokogawa/dpharpejx-vigilantplant-ejx910a/dpharpejx-vigilantplant-ejx910a_user-manual_3750163035.webp)
IM 01C25R01-01E
7-2
7. WIRING
IMPORTANT
• For pulse output and the simultaneous analog-
pulse output ,use the load resistance. Refer to
Table 7.1.
7.4 Connection
7.4.1 Power Supply Wiring Connection
Table 7.1 shows the wiring example according to the
output types.
7.4.2 External Indicaror Connection
Connect wiring for external indicators to the CHECK +
and _ terminals.
(Note) Use a external indicator whose internal resis-
tance is 10
Ω
or less.
Transmitter terminal box
External indicator
F0703E.EPS
Power supply
–
+
SUP
PLY
PU
LSE
CHEC
K
ALAR
M
Figure 7.2 External Indicator Connection
7.4.3 Communicator Connection
Connect the HART275 HHT to the SUPPLY and _
terminals.
SUPP
LY
PU
LS
E
CHEC
K
ALAR
M
Transmitter terminal box
HART275
F0704E.EPS
Power supply
–
+
Ignore the polarity
since the HART HHT
is AC-coupled to the
terminal box.
Figure 7.3 HART275 Connection
7.4.4 Check Meter Connection
Connect the check meter to the CHECK + and _termi-
nals. (Use hooks.)
• A 4 to 20 mA DC output signal from the CHECK +
and _ terminals.
(Note) Use a check meter whose internal
resistance is 10 or less.
SUPP
LY
PU
LS
E
CHEC
K
ALAR
M
Transmitter terminal box
F0705E.EPS
Power supply
–
+
Check meter
Figure 7.4 Check Meter Connection
7.4.5 External Temperature Connection
Connect the RTDcable Assembly to the Juck Terminal.
F0706E.EPS
SUP
PLY
PU
LS
E
CHEC
K
ALAR
M
Figure 7.5 Check Meter Connection
7.5 Wiring
7.5.1 Loop Configuration
(1) General-use Type and Flameproof Type
• Analog Output
SUPP
LY
PU
LS
E
CHEC
K
ALAR
M
Hazardous Location
Nonhazardous Location
Transmitter terminal box
Distributor
(Power supply unit)
Receiver
instrument
F0707E.EPS
• Pulse output and Alarm, Status Output or
Simultaneous Analog-Pulse Output
SUPP
LY
PU
LS
E
CHEC
K
ALAR
M
Hazardous Location
Nonhazardous Location
Transmitter terminal box
Distributor
(Power supply unit)
Receiver
instrument
Receiver
instrument
F0708E.EPS
Figure 7.6 Connection between Transmitter and
Distributor