Measuring principle

Radar level measurement

Frequency

78 GHz FMCW

Minimum detectable distance

400 mm (15.75") from sensor reference point

Maximum measuring range¹⁾

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

Output

• Analog output

4 to 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)

• Greater of 25 mm (1") or 0.25 % of range from minimum detectable distance to full range

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

Installation conditions

• Location

Indoor/outdoor

Ambient conditions (enclosure)

• ambient temperature

-40 to +80 °C (-40 to +176 °F)

• installation category

I

• pollution degree

4

Medium conditions

• Dielectric constant_r

>2.0

Process temperature and pressure

 See chart below

Design

• Enclosure

• Construction

316L/1.4404 stainless steel

• Conduit entry

M20x1.5, or " NPT via adapter

• Lens material

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

• Degree of protection

Type 4X/NEMA 4X, Type 6/NEMA 6, IP68 with lid closed

• Weight

3.15 kg (6.94 lb) including 3" flange

• Optional local display interface

Graphic LCD, with bar graph representing level

Process connections

Universal flat-faced flanges²⁾

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

Aimer flanges²⁾

3, 4, 6"/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 to 32 V DC, per IEC 61158-2

Certificates and approvals

• General

CSA_US/C, CE, FM

• Radio

Europe (R&TTE), FCC, Industry Canada, C-TICK

• Hazardous

• Europe/International

IECEx SIR 09.0149X
ATEX II 1D, 1/2D, 2D  
Ex ta IIIC T139 C Da IP68
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, IP68

• Brazil

INMETRO

BR-Ex nA/nL II T4 IP68

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
Ta = -20 ... +50 °C
CSA/FM Class I, II, and III, Div. 1., Gr. A-G, T6 Ta=50C

• 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 to +100 °C
(-40 to +212 °F)

-40 to +100 °C
(-40 to +212 °F)

-40 to +100 °C
(-40 to +212 °F)

100 m

-40 to +200 °C
(-40 to +392°F)

-40 to +200 °C
(-40 to +392°F)

-40 to +120 °C
(-40 to +248°F)