Mode of operation

Measuring principle

Radar level measurement

Frequency

78 GHz FMCW

Minimum detectable distance

400 mm (15.75 inch) from sensor reference point

Maximum measuring range¹⁾

• 40 m (131 ft) version
• 100 m (328 ft) version

Output

Analog output

4 ... 20 mA

Communications

• HART
• Optional: PROFIBUS PA
• Optional: FOUNDATION Fieldbus

Fail-safe

• Programmable as high, low or hold (Loss of Echo)
• NE43 programmable

Performance (according to reference conditions IEC60770-1)

Maximum measured error (including hysteresis and non-repeatability)²⁾

5 mm (0.2 inch)

Rated operating conditions (according to reference conditions IEC60770-1)

Installation conditions

• Location

Indoor/outdoor

Ambient conditions (enclosure)

• Ambient temperature

-40 ... +80 °C (-40 ... +176 °F)

• Installation category

I

• Pollution degree

4

Medium conditions

Dielectric constant ?_r

> 1.6

Process temperature and pressure

 See chart below

Design

Enclosure

• Construction

316L/1.4404 stainless steel

• Conduit entry

M20 x 1.5, or ?" NPT via adapter

• Purge inlet

1/8" NPT, 30 cfm at max. 100 psi

• Lens material

• 40 m version: PEI
• 100 m version: PEEK

Damage to lens could result from continuous purging/cleaning (due to abrasive solids). Recommended to purge/clean only a few seconds every hour.

• Degree of protection

Type 4X/NEMA 4X, Type 6/NEMA 6, IP68

• Weight

3.15 kg (6.94 lb) including 3 inch flange

• Optional local display interface

Graphic LCD, with bar graph representing level

Process connections

• Universal flat-faced flanges³⁾

• 3, 4, 6 inch/80, 100, 150 mm, 304 stainless steel
• 3, 4, 6 inch/80, 100, 150 mm, 316L/1.4404 or 316L/1.4435 stainless steel

• Universal stamped flange³⁾

3, 4, 6 inch/80, 100, 150 mm, 304 stainless steel

• Aimer flanges³⁾

3, 4, 6 inch/80, 100, 150 mm, polyurethane powder-coated cast aluminum

Power supply

4 ... 20 mA/HART

Nominal 24 V DC (max. 30 V DC) with max. 550 ?

PROFIBUS PA/FOUNDATION Fieldbus

13.5 mA
9 ... 32 V DC, per IEC 61158-2

Certificates and approvals

General

CSA_US/C, CE, FM

Radio

Europe (R&TTE), FCC, Industry Canada, RCM

Hazardous

• Europe/International

IECEx SIR 09.0149X
ATEX II 1D, 1/2D, 2D  
Ex ta IIIC T139 ?C Da
ATEX II 3G
Ex nA II T4 Gc
Ex nL IIC T4 Gc

• US/Canada

FM/CSA Class II, Div. 1, Groups E, F, G
Class III T4
FM/CSA Class I, Div. 2,
Groups A, B, C, D, T4

• China

NEPSI
Ex nA II T4
Ex nL IIC T4
DIP A20 TA, T139 ?C

• Brazil

INMETRO
Ex na IIC T4 Gc Ex ta IIIC T139 ?C Da

Programming

Intrinsically Safe Siemens handheld programmer

Infrared receiver

• Approvals for handheld programmer

IS model:
ATEX II 1GD Ex ia IIC T4 Ga
Ex iaD 20 T135 °C
T_a = -20 ... +50 °C
CSA/FM Class I, II, and III, Div. 1, Groups A, B, C, D, E, F, G, T6 T_a = 50 °C

Handheld communicator

HART communicator 375/475

PC

SIMATIC PDM, AMS, PACTware

Display (local)

Graphic local user interface including quick start wizard and echo profile displays

40 m

-40 ... +100 °C
(-40 ... +212 °F)

-40 ... +100 °C
(-40 ... +212 °F)

-40 ... +100 °C
(-40 ... +212 °F)

100 m

-40 ... +200 °C
(-40 ... +392 °F)

-40 ... +200 °C
(-40 ... +392 °F)

-40 ... +120 °C
(-40 ... +248 °F)