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Magnetostrictive liquid level gauges

For filling stations and fuel depots

WITH RIGID STAINLESS STEEL SHAFT UP TO 5,5 METERS SUITABLE FOR GASOLINE, GASOIL, LPG, ADBLUE, SOLVENTS, BUS MULTIPOINT TECHNOLOGY.

Different versions for different applications:

  • radio wireless, battery powered
  • wired with RS485 communication
  • wired RS485 LOG: tank measure recording if power and communication are lost.

ATEX, CE, IP protection, OIML compliance:

  • intrinsically safe or explosion proof versions
  • submersible IP68 protection certified
  • metrological certifications:
  • - OIML R85 for fixed tanks
  • - OIML R80 for tank trucks.

Main features

Supports tele-diagnostic/maintenance functions.
Internal sensor replacement without removing rod from the tank.
Remote configuration of operation parameters.
Connection to the tank: fixed or adjustable thread/flanged/inside riser.
Stainless Steel AISI 304/316 shaft.
Measuring range from 500 mm. up to 5.500 mm.
Calculation of data relating to:

  • Product level in 0,01 mm.
  • Interface level in 0,01 of mm. (water presence detection).
  • Product mean temperature up to max. 5 integrated digital sensors.

Standard measuring accuracy: +/- 0,5 mm.
Standard resolution: +/- 0,01 mm.
Temperature accuracy range -20 +70 °C: +/- 0,2 °C.
Temperature resolution: ± 0,0625 °C.

Magnetostrictive level probe

Operating principle
The operation of Magnetostrictive Level Probe is based on the principle denominated Wiedemann effect and allows a continuous and highly accurate reading of the level of liquids inside a tank.
The level transmitter XMT consists of an electronic circuit with microprocessor located in the head and of a stainless steel rod housing a wave guide located inside the tank.
A high frequency electric impulse is generated by the electronic device. In the exact point of intersection with the magnetic field generated by the permanent magnet housed in the float, a mechanical impulse caused by the magnetostrictive torsional deformation is generated. The mechanical impulse travels at the speed of sound in the wave guide up to the detector located in the measuring housing.
By measuring of the time elapsed between the sending of the initial signal and its return the exact position of the floats along the rod is defined with 0,01 mm. resolution.

Explosion proof ATEX certifications

INERIS 06ATEX0051 EX II 1/2 G Ex d IIA T6
Ex tD A21 IP66/68 T85 °C Tamb: -20 °C to 60 °C.
CESI 06ATEX 020 EX II 1/2 G Ex db
II 2 Ex tB IIIC T 85 °C IP67

Intrinsically safe ATEX certifications

CEC 09 ATEX131 REV. 3 EX II 1G Ex ia IIB T4 Ga
EX II 1D Ex t IIIC T 135 °C Da IP66/68.

Metrological certifications

OIML R85/2008-CZ-11.03 of 29.06.2011
for fixed tanks and R80 for mobile tanks.

Magnetostrictive I.S. probes XMT SI 485

Intrinsecally safe version

  • Stainless Steel Enclosure Ø 50 mm IP68
    (submersible up to 1,2 m per 24 hours).
  • In 2” riser installation.
  • 7/8" circular connector with standard cable length 2 m.
    Ø 9 mm, hydrocarbon resistant in according ENI specification.
  • Power supply: 12 VDC.
  • RS485 serial port.
  • I.S. circuits to wire to an intrinsically safe barrier active (BRA-SI) or passive (BRA-SIP).
  • Calculation of data relating to:
  • - Product level in 0,01 mm
  • - Interface level in 0,01 of mm. (water presence detection)
  • - Product mean temperature up to max. 5 integrated digital sensors.
  • Standard measuring accuracy: +/- 0,5 mm.
  • Standard resolution: +/- 0,01 mm.
  • Temperature accuracy range -20 +70 °C: +/- 0,2 °C.
  • Temperature resolution: ± 0,0625 °C.

Wireless I.S. XMT-RF Probes

Intrinsecally safe version battery operated

  • Wireless transmission to the RF receiver
    up to 2 Km. line of sight.
  • RF repeater for difficult environmental application.
  • Wake up on radio function.
  • Power up 500 mW adjustable.
  • RF signal measurement and display.
  • Calculation of data relating to:
  • - Product level in 0,01 mm
  • - Interface level in 0,01 of mm. (water presence detection)
  • - Product mean temperature up to max. 5 integrated digital sensors.
  • Standard measuring accuracy: +/- 0,5 mm.
  • Standard resolution: +/- 0,01 mm.
  • Temperature accuracy range -20 +70 °C: +/- 0,2 °C.
  • Temperature resolution: ± 0,0625 °C.

RF receiver

For wireless probes model XMT-SI-RF.
The same device, depending on the settings, can be used also as a repeater. This is useful in those cases of critical conditions due to the distance rather than the infrastructures present.
RF receiver

Magnetostrictive XMT Probe

Explosion proof version

Features:

  • Microprocessor Electronic
  • Explosion proof aluminium epoxyde painted case IP68 protection
  • Digital output data transmitter of:
  • - product level in 0,1 mm
  • - interface in 0,1 mm (water detection)
  • - temperature in 0,1 °C (with one digital temperature point included)

Technical Data:

  • Process connections: threaded 2” G-M
  • Guide Rod: AISI 304 stainless steel Ø 16 mm length up to 2.500 mm
  • Floats: n° 02 Ø 50 mm cylindrical in expanded closed cells PVC
  • Linearity: ± 0,5 mm
  • Resolution: ± 0.1 mm
  • Power supply voltage: 9 ÷ 30 Vdc
  • Serial Output RS 485
  • Compliance INERIS 06ATEX0051 (Ex) II 1/2 GD Ex d IIA T6 Ex tD A21 IP66/68 T85 °C T amb : -20 °C a 60 °C

Probes accessories

I.S. IP68 Junction box

An high IP rated multi-way connector box suitable for filling with bi-component gel to wiring magnetostrictive probes and sensors.

Technical features:

  • 2 or 4 cable entry versions
  • Enclosure material: PA66 hydrocarbon resistant
  • Cable glands material: Geolast entries max. Ø 9,5 mm
  • Screw terminal blocks 5 poles
  • Temperature: -20 °C / +125 °C
  • IP68 protection 5 m proof x 3 h
  • EN60529:1991+A1:2000
    EN 60998-1:2004

Ex d IP68 Junction box

Die Cast aluminium junction box.
IP68 protection degree with terminal strip, bracket for wall mounting, No 4 IP68 ½” cable glands.
FTZU 07ATEX 0184X II 2GD Ex d tD IIC T4-T6 certification.