Cable Exposed And Entering Through The Cable Glands; Sitrans Lut400 Wiring Compartment; The Battery - Siemens SITRANS LUT400 Series Operating Instructions Manual

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.
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.

SITRANS LUT400 wiring compartment

TS-3 TRANSDUCER
1 2 3 4
RELAYS
15 16 17 18 19
RLY 1 RLY 2
display cable

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
Disconnect power before replacing the battery.
A5E33329501 SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS
DISCRETE INPUTS
5 6 7 8 9 10
1 2 DC
terminal blocks
mA OUT/HART
20 21 22 23
RLY 3
PAS
ACT
INPUT
POWER
12 13 14
11
SYNC L1 L2/N
0.25 A, 250 V
100 - 230 V
SLOW BLOW
BATTERY
BR2032
DISPLAY
24
SERVICE
mA HART
connection
Replacing the Battery
power
supply
battery
USB
connection
on page 228.
Page 17