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PURPOSE
Start Italiana magnetostrictive level probes (wired and wireless level probes) are
intended for continious measurement of petroleum products levels (fuel
and LPG), produced water level and temperature in tanks at petrol
stations, tank farms and refineries.
The magnetostrictive level transmitters are based on
the principle named Wiedemann effect and enable continuous and highly
accurate reading of liquids’ level. The lever transmitter consists of a
microprocessor based electronic circuit placed inside one aluminium case
head and a stainless steel shaft containing a wave guide placed inside
the tank.
A high frequency electric impulse is transmitted
through the electronic device. In the point of contact with the magnetic
field generated by the permanent magnet placed inside the float, a
mechanic impulse is generated thanks to the magnetostrictive torsional
strain. The mechanic impulse spreads through the wave guide at the speed
of sound up to the sensor placed in the measuring head. The time between
the transmission of the outgoing impulse and the return impulse exactly
defines the position of the float.
TECHNICAL CHARACTERISTICS
General Technical Data:
- Electronic Microprocessor.
- Remote diagnostic, maintenance and configuration.
- Easy substitution of the probe without extracting the rod.
- Tank connection: standard adjustable gland 2“ G-M (others on requests).
- Stainless steel rod AISI304.
- Enclosure protection IP68. (XMT version)
- Certification: ATEX CESI e INERIS – mark
- Computation of:
- product level in 0,1 mm;
- presence of water in 0,1 mm;
- average product temperature (up to 10 digital sensors)
- Standard measure precision: ± 0,5 mm
- Temperature precision among -20+70 °C range: ±0,2 °C
- Environmental temperature for explosion proof XMT: from -40 °C to 60 °C
Main Features:
| Measurable product |
Gasoline, fuel, propane (GPL), water according to the float |
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| Accuracy |
± 0,5 mm probe with digital output
± 1 mm probe with analog output |
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| Resolution |
0,1 mm |
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| Repeatability |
± 0,1 mm probe with digital output
± 0,5 mm probe with analog output |
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| Power supply |
+9 V ÷ +30 V DC |
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| Consumption |
< 30 mA |
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| Maximum load |
500 Ohm |
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| Temperature accuracy |
± 0,5°C (for digital output probes only) |
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| Temperature measuring range |
-25°C ÷ +130°C (for digital output probes only) |
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| Temperature resolution |
±0,0625 °C |
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| Ambient temperature |
-40°C ÷ +60°C |
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| Explosion proof EX |
II 1/2 GD EEx d IIB T6 ATEX CE,
II 1G Ex ia IIB T4 II 1D Ex tD A20 T135°C CEC 09 ATEX 131 |
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| Digital communication interface |
RS-485 or wireless |
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Technical Features:
| Body |
O 110 mm |
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| Float |
O 50 mm (other dimensions on demand) |
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| Shaft |
O 14/16/17 mm |
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| Measurable height |
200 ÷ 120000 mm |
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CONNECTION SCHEME EXAMPLE
Start Italiana probes can be connected either
directly to a PC through an interface converter RS-485/RS-232 and an
intrinsically safe power supply unit (in case if used in explosive
zones), or through a PTS controller for fuel dispensers and ATG systems for petrol stations. Using a PTS controller additionally
allows simulataneous control over a large variety of fuel and LPG
dispensers used at petrol stations and storage depots.
Project Pictures of M/S. Shaheen Freight Service Petroleum Services - CALTEX - Sukkur Pakistan.
CONTACT US FOR FREE SURVEY ACROSS PAKISTAN AND PRODUCT ESTIMATE:
021-35315028 / 021-35884129
info@newage-engineering.com |
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