Siemens SITRANS LUT400, Operating Instructions Manual

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A5E33329501 SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS Page 17
mmm
mm
Inst
alling and Mou
nt
ing
Cable exposed and entering through the cable glands
(continued from steps 1 to 5 on previous page)
6. After preparing for cable entry in steps 1 to 5 above, unscrew the glands and attach
them firmly to the enclosure.
7. Thread the cables through the glands. Ensure the power cable is kept separated
from the signal cables and then wire the cables to the terminal blocks.
8. Tighten the glands to form a good seal.
9. Replace enclosure lid and tighten screws.
SITRANS LUT400 wiring compartment
The Battery
The SITRANS LUT400 is supplied with one battery installed. The battery (BR2032) has a
life expectancy of ten years, and is affected by ambient temperature. If the LUT400 loses
input power, the battery will maintain operation of the device’s real time clock until power
has been restored.
When the battery reaches its end of life, refer to
Replacing the Battery
on page 228.
Notes:
• When cable entry hole knock-out tabs have been removed, the entry hole is 21.4
mm to 21.6 mm in diameter.
• M20 cable glands (20 mm in diameter), and 1/2" NPT conduit (21.3 mm in diameter)
fit this entry hole.
• Caution should be taken when selecting appropriate seal for entry holes. Flat
gasket is recommended (instead of O-ring). If alternate cable glands are used, it is
the customer’s responsibility to maintain IP65 rating of entry holes.
Disconnect power before replacing the battery.
BATTERY
BR2032
0.25 A, 250 V
SLOW BLOW
DISPLAY
SERVICE
RELAYS
TRANSDUCER
WHT
DISCRETE INPUTS
INPUT
POWER
mA OUT/HART
22 23 24
ACT
PAS
SYNC
11 6
1 2
9 7 10 8
DC
1 4 2 5 3
RLY 1 RLY 2 RLY 3
21 20 19 18 17 16 15
L1 L2/N
12 13 14
100 - 230 V
BLK SHLD WHT BLK
TS-3
battery
display cable
USB
connection
power
supply
mA HART
connection
terminal blocks