Sitrans Lr 400 Wiring Requirements; Sitrans Lr 400 Wiring; Functional Dimensions - Siemens sitrans LR 400 Manual Del Usuario

SITRANS LR 400 Wiring Requirements

• All field wiring must have insulation suitable for the applied input voltage
• 4-20 mA, Profibus-PA, dc input circuits, 14-20 AWG, shielded copper wire
• ac input circuit, minimum 14 AWG copper wire
• Recommended torque on terminal clamping screws, 0.5-0.6 Nm
• The 24 Vdc version must only be connected to SELV or PELV circuits.

SITRANS LR 400 Wiring

ac
Hart Wiring
cable clamp
4 5
3 6 7 8
Rated temperature of
connection cables must
mA
exceed maximum ambient
temperature by at least 15 K
dc
Hart Wiring
cable clamp
3 4 5 6 7 8
Rated temperature of
connection cables must
mA
exceed maximum ambient
temperature by at least 15 K

Functional Dimensions

Parameters:
1.3 Nozzle height
4.2.2.3 Dead band
1.6 Lower range value (LRV)
1.5 Upper range value (URV)
1.4 Vessel height
Page EN-4 SITRANS LR 400 – QUICK START MANUAL
earth
terminal
1 2
L L
1 2
N
earth
terminal
1 2
19-30 V
100%
0%
Profibus Wiring
cable clamp
3 4 5 6 7 8
Rated temperature of
connection cables must
PROFI-
exceed maximum ambient
BUS PA
temperature by at least 15 K
Profibus Wiring
cable clamp
3 4 5 6 7 8
Rated temperature of
connection cables must
PROFI-
exceed maximum ambient
BUS PA
temperature by at least 15 K
1.3
1.4
1.5
1.6
earth
terminal
1 2
L L
1 2
N
earth
terminal
1 2
19-30 V
4.2.2.3
7ML19985QN81