Rosemount 3144P, User Manual

Page: 139 / 170

Reference Manual
00809-0100-4021, Rev FB
August 2011
B-5
Rosemount 3144P
Special Conditions for Safe Use (x):
1. The apparatus enclosure may contain light metals. The apparatus must
be installed in such a manner as to minimize the risk of impact or friction
with other metal surfaces.
2. A transient protection device can be fitted as an option, in which the
equipment will not pass the 500 V test.
Japanese Certifications
E4 TIIS Flameproof
Various certificates and configurations available. Consult factory for
certified assemblies.
China (NEPSI) Certifications
I3 China Intrinsic Safety
Ex ia IIC T4
Certificate Number: GYJ06586/GYJ06587
Special Conditions for Safe Use (x):
1. The temperature of the process medium must be less than +121 °C.
2. The ambient temperature range is from -40 °C to + 60 °C.
3. Safety Parameters:
Table B-1. NEPSI Input Entity
Parameters HART Protocol,
including SIS
4. The cable entry of the temperature transmitter must be protected to
ensure the degree of protection of the enclosure to IP 20(GB4208-1993)
at least.
5. The terminals for connection to power supply of the temperature
transmitter must be connected to an associated apparatus certified by
NEPSI in accordance with GB 3836.1-2000 and GB 3836.4-2000 to
establish an intrinsic safety system. The following requirements must be
fulfilled:
Where:
C
c
, L
c
the distributed capacitance and inductance of the cables
U
o
, I
o
, Po maximum output parameters of the associated apparatus
C
o
, L
o
maximum external parameters of the associated apparatus
Input Parameters RTD Terminals
U
i
= 30 V U
o
= 14.1 V
l
i
= 300 mA l
o
= 18.6 mA
P
i
= 1.0 W P
o
= 65.7 W
C
i
= 0.023 F C
o
= 0.63 F
L
i
= 0 mH L
o
= 93.3 mH
Uo ≤ U
i
C
o
≥ C
i
+ C
c
Io ≤ I
i
L
o
≥ L
c
+ L
i
Po ≤ P
i
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