Elster Instromet 6 Series - Electrical Parameters

5
Electrical Parameters
UFM Series 6
Safety Instructions
Page 23 of 38
5 Electrical Parameters
Intrinsically Safe
Field Terminal Board (see Figure 4-2)
Terminals
IS_opt_C1,
IS_opt_C2
4-20 mA connection with HART, label “IS_opt_C1” and
“IS_opt_C2” circuit (terminals P+ and P-)
(for p
m
flow pressure sensor)
In type of protection intrinsic safety, with the following
maximum values:
Uo = 23.1 V
Io = 109 mA
Po = 629 mW
Lo = 1 mH
Co = 0.1 μF
Terminals
IS_opt_A1,
IS_opt_A2,
IS_opt_A3,
IS_opt_A4
4-wire PT 100 (external) temperature sensor input with
label “IS_opt_A1”, “IS_opt_A4” ,“IS_opt_A2” and
“IS_opt_A3” circuit
(terminals I+, I-, U+ and U-):
In type of protection intrinsic safety, with the following
maximum values:
Uo = 5.9 V
Io = 9.8 mA
Po = 15 mW
Lo = 10 mH
Co = 0.5 μF