LIGO PRO Datasheet
Product Overview
The LIGO PRO fuel level sensor represents a significant advancement as a third-generation product, having undergone extensive mechanical refinements to enhance both performance and durability. These improvements enable the sensor to better cope with issues such as water resistance and electrical insulation, especially compared to its predecessors. Notably, this product adheres to the highest standards of water and chemical resistance, including its ability to withstand water ingress according to the IP69K standard.
Another key feature is the sensor's base, constructed from synthetic plastic, which has been cleverly designed to flex and conform seamlessly to the curved surfaces of fuel tanks without the need for multiple rubber gaskets to prevent oil spillage.
Furthermore, the product is manufactured with high-quality materials, ensuring reliability in extreme temperature environments. It effectively withstands the impacts of chemicals, gasoline, and UV radiation without succumbing to any form of degradation or corrosion. This makes the sensor an ideal choice for applications in harsh temperature conditions and those requiring exceptional durability.
Key Features
- High accuracy up to 99.5%.
- Operating input voltage range from 7V-50V
- Internal isolation voltage up to 2500V.
- Possibility of cutting down or extending up to 6000mm (optional)
- Wide operating temperature range from -40°C to +85°C.
- A filter protecting the probe from dregs and water.
- Ingress protection rating IP69K
- Noise filter and temperature compensation system.
- Installation and configuration software on multiple application devices: phone, laptop, etc.
- Anti-vibration spring when moving.
- Quick installation, safety guaranty.
Applications
- Trucks, container cars, excavators, trains…
- Boats, barges.
- Electric generators.
- Industrial oil storage tanks and stationary storage tanks.
- Factories, industrial zones.
- Fuel storage tanks in agricultural machines and maritime transportation…
Product Variants / Ordering Information
LIGO PRO Order Code
| Code | Description | |
|---|---|---|
| AF | Analog | (0…9VDC) |
| Frequency | 500…2000Hz | |
| RS232 | RS232 | |
| RS485 | RS485 | |
| Code | Description |
|---|---|
| L7 | 700mm |
| L10 | 1000mm |
| L15 | 1500mm |
| Other length | Contact manufacturer |
For Example: 700mm length, output signal AF sensor has the order code: LIGO PRO - AFL7
Products and Accessories
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| No. | Description | Qty (pcs) |
|---|---|---|
| 1 | LIGO PRO Fuel Level Sensor. Standard lengths: 700, 1000, 1500mm (for other customized lengths, please contact the manufacturer) | 01 |
| 2 | Oil filter | 01 |
| 3 | Gasoline resistant rubber gasket | 01 |
| 4 | Anti-vibration spring when moving | 01 |
| 5 | 2A Fuse protection | 01 |
| 6 | Self-drilling screw M4.8x32mm | 04 |
| 7 | Rivet and screw M5x20mm | 04 |
| 8 | Sealing cord | 01 |
| 9 | Plastic wire sealing connector | 01 |
| 10 | 7m PVC coated signal wire | 01 |
| 11 | Quick installation manual | 01 |
Technical Specifications
Technical specifications of the LIGO PRO product
| Parameter | AF | RS232 | RS485 |
|---|---|---|---|
| Standard length (L), mm | 700, 1000, 1500...up to 6000 mm | ||
| Measuring error, % | ± 0.5 % | ||
| Output signal | Analog (0…9V), Frequency (500- 2000Hz) | RS232 | RS485 |
| Baud rate, bit/sec | 9600 | 2400, 4800, 9600, 19200, 38400, 57600, 115200. | |
| Power supply (DC input voltage, V) | 7…50 | ||
| Maximum power consumption, mA | 20 | ||
| Dielectric strength of galvanic isolation, min (V) | 2500 | ||
| Ingress protection rating | IP69K | ||
| Operating temperature, °C | -40...+85 | ||
| Maximum allowed humidity level, % | 100 | ||
| Resolution, bit | 12 | ||
| Digital reading range corresponding to the minimum level measurement value | Analog (0...8); Frequency (500...1500 Hz) | 0 | 0 |
| Digital reading range corresponding to the maximum level measurement value | Analog (1...9V); Frequency (1000...2000 Hz) | 4095 | 4095 |
| Average sampling period, (s) | 0...255 | ||
| Message interval, (s) | Continuous | 1...60 | 1...60 |
| Absolute error in temperature measurement within the entire temperature measuring range, °С | ±2 | ||
| Average service life, years (minimum) | 10 | ||
Technical Characteristics
1. Voltage output signal depending on the probe length
Operating voltage range from (0…9V).
2. Frequency output signal depending on the probe length
Operating frequency range from (500-2000Hz).
3. RS232/RS485 output signal depending on the probe length
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Measurement range from (0-4095)
Overall Dimensions and Detailed Descriptions
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Description:
| No | Content |
|---|---|
| 1 | Oil filter |
| 2 | Sensing probe |
| 3 | Gasoline resistant rubber gasket |
| 4 | Sensor's head containing sensing circuit board |
| 5 | Twisted steel stainless steel plastic conduit |
| 6 | Connector IP67 |
| 7 | Anti-vibration spring |
| 8 | Self-drilling M4.8x32mm x 4pcs or M5x20 Rivet nut x4pcs |
Connector
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Pins
| PIN | DESCRIPTION |
|---|---|
| 1 | GND |
| 2 | NC (Not connected) |
| 3 | 7…50 VDC |
| 4 | TXD/B- |
| 5 | Analog or Frequency |
| 6 | RXD/ A+ |
1. Connecting LIGO PRO to an external device
+ RS232/ RS485
| Wire Colour | Description |
|---|---|
| Black | GND (Ground) (V-) |
| Yellow | RXD/A+ |
| Blue | TXD/B- |
| Red | 7…50VDC |
+ AF (Analog & Frequency)
| Wire Colour | Description |
|---|---|
| Black | GND (Ground) (V-) |
| Yellow | Out (Analog/Frequency) |
| Red | 7…50VDC |
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LIGO fuel sensor is protected against reverse-polarity and overvoltage. This feature helps to protect circuit boards against incorrect connections and it can withstand a continuous over-voltage condition (up to 50V in LIGO-SP product and 100V in LIGO-SP-PRO product) and short-circuit. Please avoid connecting sensor to a power supply which is unstable, usually fluctuates, or has a voltage higher than the recommended voltage range above.
Using a fuse coupled with one pole (-) or (+) is recommended for over-voltage protection purpose in case the car equipment is too old or the power cannot be guaranteed. It isadvisable to use fuses which have the rated current less than 2A.
Installation
Quick installation through 5 steps:
- Step 1: Pierce oil tank
- Step 2: Based on oil tank's height, cut a suitable level indicator
- Step 3: Configure new length
- Step 4: Install the level indicator in the oil tank
- Step 5: Re-adjust the sensor according to the volume of the oil tank
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For further information about the sensor's installation procedure and configurator software, please visit our website www.sojielectronics.com or contact us for more details.
Compliance and Certifications
Refer to LIGO PRO Certification & Approvals for current certificate status.
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