Fm/Csa; Eu Equivalency - Siemens sitrans PROBE LU Instruction Manual

FM/CSA

• Approved dust-tight and water-tight conduit seals are required for outdoor
NEMA 4X / type 4X / NEMA 6, IP67 locations.
• The maximum voltage of the non-intrinsically safe apparatus must not exceed 250 V rms.
• Recommended intrinsically safe barriers are listed on page 88.
Hazardous Area
load
4 – 20
mA
Zone 0, 1, or 2

EU Equivalency

Any zener diode safety barrier, certified by an EU approved certification body to
[ EEx ia ] IIC, its output voltage (U
by load resistance (R
7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL
Non-hazardous Area
EEx ia
Certified Barrier
2
) not exceeding 30 V and its output current (I
o
); such that I = U / R
o o o
2
, does not exceed 120 mA.
o
PLC (active)
HART handheld
Communicator
) limited
o
Page 87