Siemens LR 460 User Manual

7ML19985JM01

SITRANS LR 460 – INSTRUCTION MANUAL 

Page 9

Enclosure

• construction

Die-cast aluminum, painted (polyester powder-coated)

• conduit

2 x M20 
or 2 x ½” NPT (option)

• ingress protection

Type 4X/NEMA 4X, Type 6/NEMA 6, IP67

1

Dust cap (optional)

• 3"

PTFE, pipe clamp connection, O.D. 95 mm (3.74")

• 4"

PTFE, pipe clamp connection, O.D. 120 mm (4.72")

Air Purge Connection

• equipped with female 1/8" NPT fitting

• location

indoor/outdoor

• altitude

2000 m (6562 ft) max

• relative humidity

suitable for outdoor (Type / NEMA 4X, 6/ IP67)

• installation category

II

• pollution degree

4

• permitted ambient

-40 to 65 °C (-40 to 149 °F) (non-hazardous version)
temperature

3

LCD: -10 to 55 °C (14 to 131 °F)

Observe the temperature classes in hazardous areas!

• Process temperature

2

-40 to 200 °C (-40 to 392 °F)

• Pressure (vessel) 

0.5 bar (7.25 psi) maximum

Communication: HART

• Load

230 to 600 

Ω, 230 to 500 Ω when connecting a coupling

module

• Max. Line Length

multi-wire: 

≤ 1500 m (4921 ft)

• Protocol

HART, Version 5.1

1.

Use only approved, suitable sized hubs for watertight applications.

2.

Process temperature varies with ambient temperature. See Process/Ambient de-rating curves in 
Appendix III.