XA005R/09/
Safety Notes RN 221N
1) Install the unit to the manufacturers instructions and in accordance with the valid norms and regulations.
2) The unit and its operating instrumentation can only be installed outside the hazardous area.
3) The unit must be installed in such a way that a minimum IP20 ingress protection is achieved.
4) When installing the unit care must be taken that there must be a spacing of at least
50 mm to the intrinsically safe terminals.
RN 221N
Supply set
(Ground cable)
Loop power
(intrinsically safe)
Internal capacitance
Internal inductance
Max. connection values
Output
®
(HART
-communication)
Temperature range
II (1) GD [EEx ia] IIC
L/L+
N/L-
U
= 20 to 250 V DC/AC 50/60 Hz
m
PE
≤ 27.3 V
I+
I-
U
o
≤ 87.6 mA
I
o
≤ 597 mW
P
o
C
= negligibly small
i
Li = 24 µH
≤ 86 nF
EEx ia IIC
C
o
≤ 683 nF
EEx ia IIB
C
o
O+
O-
4 to 20 mA
O+H
T
= -20 °C to +50 °C
a
RN 221N
≤ 5.2 mH
L
o
≤ 18.9 mH
L
o