3-6
3.2 Cable requirement
Required specification: Twisted pair 2 core shielded cable (0.5 to 2.5mm-sq / AWG 20 to 12)
Cable entry:
2 ports / M20 x 1.5 (Cable dia; 6.5 to 9mm)
3.3 Load resistance
Refer to the Fig 3.1.5 for details.
The maximum load resistance at the maximum operating voltage used in each equipment specification
is shown in
②
and
③
in Fig 3.1.5. (for example : maximum operating voltage in the Non-Ex
specification so 36V DC, maximum load resistance is 1159
Ω
)
NOTE: Resistors used in HART communication is 250
Ω
. It shows the power operating voltage of 250
Ω
①
in Fig 3.1.5. (Non-Ex:16V DC, Ex ia:17.5V DC, Ex ia/db and Ex d ia:23.5V DC)
Fig 3.1.7 Load resistance
①
: HART load
②
: Power operating voltage limit Ex ia equipment
③
: Power operating voltage limit Non-Ex, Ex ia/db, Ex d ia equipment
3.4 Power Supply
Operating voltage : 10.5 to 36V DC (Non-Ex),12 to 30V DC (Ex ia),18 to 36V DC (Ex ia/db, Ex d ia),
Max. Current: 22mA
0
200
400
600
800
1000
1200
10
12
14
16
18
20
22
24
26
28 30 32
34
36
R
e
s
i
s
t
a
n
c
e
[
O
]
Power suplly[V]
Non
-
Ex
Ex ia
Ex ia/db
Ex d ia
③
23.5
868
①
②
17.5
Содержание KRG-10
Страница 1: ...Document No KF13 001K Microwave Level Gauge RG 10 User s Guide...
Страница 9: ...8 Blank...
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Страница 17: ...1 4 Fig 1 2 4 Transmitter head with rod antenna 1 Transmitter head 2 Flange option 3 1 rod antenna...
Страница 51: ...3 8 Blank...
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Страница 181: ...10 10 10 4 Optional specifications Table 10 4 1 Optional specifications CD R Configuration software...
Страница 190: ...10 19 M20 1 5 Fig 10 7 6 Cable gland Only Non Ex type...
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Страница 197: ...12 4 Blank...
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