Elster Instromet 6 Series, Руководство пользователя

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Electrical Parameters 5
Page 24 of 38 Safety Instructions UFM Series 6
Intrinsically Safe
Terminals
IS_opt_B1,
IS_opt_B3
Namur pulse input #1, with label “IS_opt_B1” and
“IS_opt_B3” circuit (terminals Z1+ and Z1-):
In type of protection intrinsic safety, with the following
maximum values:
Uo = 9.1 V
Io = 37 mA
Po = 84 mW
Lo = 10 mH
Co = 0.5 μF
Terminals
IS_opt_B2,
IS_opt_B4
Namur pulse input #2, with label “IS_opt_B2” and
“IS_opt_B4” circuit (terminals Z2- and Z2+):
In type of protection intrinsic safety, with the following
maximum values:
Uo = 9.1 V
Io = 37 mA
Po = 84 mW
Lo = 10 mH
Co = 0.5 μF
Table 2: Intrinsically Safe Parameters
Non- Intrinsically Safe
Terminals
TB1 1,2,3
Power supply connection (Um = 250V) pins:
3. +24VDC nom. (18 - 30 VDC, 20 W)
2. 0 V
1. Do not connect (
 see Chapter 4
Installation [p.16])
Terminals
TB2, TB3 and J4
Non-IS data circuits (Um = 250V)
TB2: DSL / Network connections
TB3: Output / Communication ports
J4: Ethernet
Table 3: Non - Intrinsically Safe Parameters