ALISONIC SI
Marcatura ATEX: TÜV IT 23 ATEX 0141
II 1G Ex ia IIB T4 Ga
Tamb.: -40°C ÷ +80°C
- Product Overview
Wired Magnetostrictive Level Gauge
ALISONIC SI is a wired magnetostrictive level gauge designed for service stations and underground tanks, optimized for riser installations in Zone 0 environments. It can be connected through an active or passive barrier and interfaces reliably with the system via standard field wiring. Suitable for riser, threaded, or flanged tank connections, ALISONIC SI delivers accurate and stable tank measurements with ATEX-certified intrinsically safe operation across a wide ambient temperature range (–40°C to +80°C).
- Probes Data
General Specifications
Our approach combines proven expertise with advanced technology to build sustainable solutions that last.
Product warranty: 2 years
Technology
ALISONIC has developed a complete tank management system for service stations, fuel depots, and tanker trucks.
It is based on magnetostrictive level sensors—the only technology capable of guaranteeing a precision of 0.25 mm.
In addition, this technology supports remote diagnostics, providing immediate assistance without the costs associated with on-site interventions.
Technical Features
• OIML R85 certified ultra-high precision
• AISI 316 stainless steel housing for SI sensors / aluminum housing for EXD sensors
• IP68 protection rating up to 10 m / 24h water immersion
• High reliability and robustness
• Ultra-compact design
• Power supply: 12–24 Vdc
• RS485 serial port
Metrological Data
• Measurement accuracy: ± 0.25 mm
• OIML R85 laboratory certification
• Probe resolution: ± 0.01 mm
• Density detection, accuracy ± 1 kg/m³
• Temperature accuracy: ± 0.2 °C
• Water detection
• Phase separation detection
Certifications














Quality Assurance
Management System
IECEx-Scheme
94/9/EG
www.tuv.com
ID 9105076860
- Specifications
ALISONIC SI
Marcatura ATEX: TÜV IT 23 ATEX 0141
II1GExiaIIBT4Ga Tamb.: -40°C ÷ +80°C
Wired Magnetostrictive Level Sensor
The standard level gauge for
service stations and underground
tanks, suitable for riser application
(0 zone).
Works with an active or passive barrier.
Tank connection: riser, threaded or flanged.
Intrinsically safe for Zone 0 environments
- Accessories
Accessories for ALISONIC SI
Density Module
Size: 2” Construction: AISI 316 Gasoline and diesel versions available Accuracy: ± 2 kg/m³
Continuous density kit
Sizes: 2”, 2½”, 4” Suitable for rigid and flexible level sensors (AISI 316) High resolution Minimal dead zone Accuracy: ± 1 kg/m³ OIML R85 laboratory certified
Phase Separation Kit
Size: 2” Construction: AISI 316 This module detects the presence of gasoline/water mixture and water accumulation at the bottom of the tank.
- Compare models
Features
- Intrinsecally safe ZONE 0
- Explosion proof ZONE 1
- Enclosure
- IP68 up to 10m/24h
- Maximum height
- Serial RS485
Quality
- Accuracy ±0,25mm
- Resolution ±0,01mm
- Density accuracy ±1Kg/m³
- OIML R85 Certification
- Temp. accuracy ±0,2°C
- Water detection
- PHS detection
Protocols
- 6 digits
- 5 digits
- 5 digits old
- Modbus
- MTS
- Use of barrier is mandatory, either Passive or Active
Marcatura ATEX: TÜV IT 23 ATEX 0141
II 1G Ex ia IIB T4 Ga
Tamb.: -40°C ÷ +80°C
DF/IS
- AISI 316
- 6000mm
Quality
Protocols
Marcatura ATEX: TÜV IT 23 ATEX 0141
II 1G Ex ia IIB T4 Ga
Tamb.: -40°C ÷ +80°C
DW/IS
- AISI 316
- 6000mm
Quality
Protocols
Marcatura ATEX: TÜV IT 23 ATEX 0141
II 1G Ex ia IIB T4 Ga
Tamb.: -40°C ÷ +80°C
FX/IS
- AISI 316
- 25000mm
Quality
Protocols
Marcatura ATEX: TÜV IT 25 ATEX 0253 X
II 1/2G Ex h Ex db IIB T4 Ga/Gb
Tamb.: -40°C ÷ +70°C
DF/XS
- Alluminium
- 6000mm
Quality
Protocols
- Probes Comparison
Marcatura ATEX: TÜV IT 23 ATEX 0141
II 1G Ex ia IIB T4 Ga
Tamb.: -40°C ÷ +80°C
Features
- Intrinsecally safe ZONE 0
- Explosion proof ZONE 1
- Enclosure
- IP68 up to 10m/24h (in water)
- Maximum height
- Serial RS485
Quality
- Accuracy ±0,25mm
- Resolution ±0,01mm
- Density accuracy ±1Kg/m³
- OIML R85 Certification
- Temp. accuracy ±0,2°C
- Water detection
- PHS detection
Protocols
- 6 digits
- 5 digits
- 5 digits old
- Modbus
- MTS
- Use of barrier is mandatory, either Passive or Active
Marcatura ATEX: TÜV IT 23 ATEX 0141
II 1G Ex ia IIB T4 Ga
Tamb.: -40°C ÷ +80°C
DF/IS
- AISI 316
- 6000mm
Quality
Protocols
Marcatura ATEX: TÜV IT 23 ATEX 0141
II 1G Ex ia IIB T4 Ga
Tamb.: -40°C ÷ +80°C
DW/IS
- AISI 316
- 6000mm
Quality
Protocols
Marcatura ATEX: TÜV IT 23 ATEX 0141
II 1G Ex ia IIB T4 Ga
Tamb.: -40°C ÷ +80°C
FX/IS
- AISI 316
- 25000mm
Quality
Protocols
Marcatura ATEX: TÜV IT 25 ATEX 0253 X
II 1/2G Ex h Ex db IIB T4 Ga/Gb
Tamb.: -40°C ÷ +70°C
DF/XD
- Alluminium
- 6000mm
Quality
Protocols
- Resources
Resources data
Catalogs, technical manuals, and software downloads are available exclusively to registered users.
If you are not yet registered, please complete your registration at the following link to gain access.
Manuals
Comprehensive technical documentation for installation, configuration, and maintenance.
Softwares
Dedicated tools and firmware to configure, monitor, and optimize system performance.
Certifications
Official compliance documents ensuring conformity with international safety and quality standards.