SITRANS Probe LU240

Mode of operation

Measuring principle

Ultrasonic level measurement

Typical application

Level measurement in storage vessels and simple process vessels

Inputs

Measuring range

• 3 m (10 ft)

0.2 ... 3 m (8 inch ... 10 ft)

• 6 m (20 ft) model

0.2 ... 6 m (8 inch ... 20 ft)

• 12 m (40 ft) model

0.2 ... 12 m (8 inch ... 40 ft)

Frequency

54 kHz

Outputs

mA/HART

• Range

4 ... 20 mA

• Accuracy

± 0.0096 mA

• HART version

7

• Startup current

3.6 mA

• Fail-safe

Programmable as high, low, or hold (loss of echo) per NAMUR NE43

Performance

Resolution

≤ 3 mm (0.12 inch)

Accuracy

3 m (10 ft) version

10 mm (0.39 inch)

6 m (20 ft), 12 m (40 ft) version

• ± the greater of 0.15 % of range or 6 mm (0.25 inch) [valid from 0.25 m (0.82 ft)]
• ± 2 mm (0.08 inch) on ranges 4 m (13 ft) or less

Non-repeatability

≤ 3 mm (0.12 inch)

Blanking distance

0.2 m (0.66 ft)

Update time

≤ 4 s

Temperature compensation

Built-in to compensate over temperature range

Beam angle

10°

Rated operating conditions

Ambient conditions

• Location

Indoor/outdoor

• Ambient temperature

• Storage: -40 ... +85 °C (-40 ... +185 °F)
• Operating: -40 ... +80 °C (-40 ... +176 °F)

• Relative humidity/ingress protection

Suitable for outdoor

• Installation category

I

• Pollution degree

4

Medium conditions

• Temperature at flange or threads

-40 ... +85 °C (-40 ... +185 °F)

• Pressure (vessel)

0.5 bar g (7.25 psi g)

Display

-20 … +80 °C (-4 … +176 °F)

Design

Material (enclosure)

PBT (Polybutylene Terephthalate)

Degree of protection

Type 4X, Type 6, IP66, IP68

Weight

0.93 kg (2.1 lb)

Cable inlet

2 x M20 x 1.5 cable gland or 1 x ½" NPT thread

Material (transducer)

ETFE (Ethylene Tetrafluoroethylene) or PVDF (Polyvinylidene Fluoride) Buna-N seal

Process connection

Threaded connection

2" NPT [(Taper), ASME B1.20.1]

R 2" [(BSPT), EN 10226]

or

G 2" [(BSPP), EN ISO 228-1]

Flange connection

3 inch (80 mm) universal flange

Other connection

FMS 200 mounting bracket (see FMS mounting bracket product page for more information) or customer supplied mount.

Display and Controls

Interface

Local: LCD display

Remote: Available via HART or Bluetooth

Configuration

4-button HMI

Memory

Non-volatile EEPROM, no battery required

Remote configuration

• PC running SIMATIC PDM
• PC running PACTware (SITRANS DTM)
• PC running Emerson AMS Device
  Manager
• PC running a Field Device Tool
  (FDT)
• Field Communicator 375/475
  (FC375/FC475)
• Mobile device running SITRANS Mobile IQ
  (AW050 bluetooth)

Power supply

4 ... 20 mA/HART

10.5 ... 30 V DC

Certificates and Approvals

General

FM, _CCSA_US, CE, UKCA, RCM, EAC, KC, VLAREM II, RoHS, China RoHS, WEEE, REACH

Radio

FCC, IC, RED, CMIIT

Hazardous

• Intrinsically Safe

• Europe

ATEX II 1G Ex ia IIC T4 Ga

• UK

UKEX II 1G Ex ia IIC T4 Ga

• International

IECEx SIR 18.0013X Ex ia IIC T4 Ga

• USA/Canada

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

CSA Ex ia IIC T4 Ga Class I, Zone 0, AEx ia IIC T4 Ga Tamp: -40 °C to +80 °C

• Brazil

INMETRO Ex ia IIC T4 Ga

• China

NEPSI Ex ia IIC T4 Ga

• South Africa

SABS Ex ia IIC Tx Ga

• Russia

EAC Ex 1G Ex ia IIC T4 Ga

• Korea

KCs Ex ia IIC T4

• Non-incendive

• USA

FM, Class I, Div. 2, Groups A, B, C, D Tx

Metrological

MCERTS, CPA, Kazakhstan metrology

Drinking water

NSF/ANSI/CAN 61- 2022

Radio (Bluetooth) AW050

Australia, Canada, Chile, China, Colombia, Ecuador, Egypt, EU, Hong Kong, India, Israel, Japan, Kazakhstan, Malaysia, Mexico, New Zealand, Pakistan, Peru, South Africa, South Korea, Taiwan, UAE, UK, USA, Vietnam

Other

FDA (wetted sensor), Environmental Product Declaration (EPD), Siemens EcoTech Profile (SEP)

Production and development certification

• ISO 9001
• ISO 14001
• ISO 18001
• ISO 45001
• IEC 62443-4-1
• EN ISO/IEC 80079-34
• PED 2014/68/EU
• IEC 62443-4-1, maturity level 3