ACCURATE TANK LEVEL SENSORS
Low-Power, RS485 Modbus/ASCII Liquid Level Gauges
Float-based, Field-Proven Resistive Reed Switch Technology, US Patent 8,763,455 B1
RL3: Modbus | RL4: ASCII
TANK MONITORING APPLICATIONS
- Well suited for use in both hazardous and non-hazardous locations (oil & gas, petro-chemical, water and wastewater)
- Applications requiring high scalability of up to 16 sensors from a single power source
- Excellent choice for monitoring production levels and inventory management
- Highly compatible with crude oil, diesel, kerosene, gasoline, variety of other hydrocarbons, and water
HIGHLIGHTS
- 3-in-1 continuous level measurement solution: product, interface & temperature
- Safe for use in hazardous locations, Class I, Division 1 (Zone 0)
- Intrinsically Safe when used with IS Safety Barrier Boards
- Unaffected by electro-mechanical interference, tank turbulence or change in environmental conditions
- Limited lifetime warranty against damage from H2S and paraffin buildup
- Supports multiple fluid densities and wide temperature ranges
- Requires only a one-time calibration, rarely requires cleaning, very low-maintenance product
- Quick connect fitting eliminates sensor wiring error and hassle
- Modbus RTU or LevelMaster ASCII Serial RS485 interface
- Wireless option also available
- Two material types: 316 Stainless Steel (up to 21 ft) or
Flexible, PTFE (up to 38 ft) - 1/2” or 1/4” sensor resolution option
- Click here to see level sensor accessories
ACCURATE TANK LEVEL SENSORS
Low-Power, RS485 Modbus/ASCII Liquid Level Gauges
Float-based, Field-Proven Resistive Reed Switch Technology, US Patent 8,763,455 B1
TANK MONITORING APPLICATIONS
- Well suited for use in both hazardous and non-hazardous locations (oil & gas, petro-chemical, water and wastewater)
- Applications requiring high scalability of up to 16 sensors from a single power source
- Excellent choice for monitoring production levels and inventory management
- Highly compatible with crude oil, diesel, kerosene, gasoline, variety of other hydrocarbons, and water
HIGHLIGHTS
- 3-in-1 continuous level measurement solution: product, interface & temperature
- Safe for use in hazardous locations, Class I, Division 1 (Zone 0)
- Intrinsically Safe when used with IS Safety Barrier Boards
- Unaffected by electro-mechanical interference, tank turbulence or change in environmental conditions
- Limited lifetime warranty against damage from H2S and paraffin buildup
- Supports multiple fluid densities and wide temperature ranges
- Requires only a one-time calibration, rarely requires cleaning, very low-maintenance product
- Quick connect fitting eliminates sensor wiring error and hassle
- Modbus RTU or LevelMaster ASCII Serial RS485 interface
- Wireless option also available
- Two material types: 316 Stainless Steel (up to 21 ft) or
Flexible, PTFE (up to 38 ft) - 1/2” or 1/4” sensor resolution option
- Click here to see level sensor accessories
Do More with Less
The OleumTech Resistive Level Sensor give you the ability to continuously measure product (oil), interface (water), and temperature from a single instrument, eliminating the need for multiple sensors and multiple tank ports.
No Wiring Hassle
Every Resistive Level Sensor is equipped with a quick connect fitting that joins the sensor to its head without any wires, eliminating wiring error and hassle to help you save valuable time during installation and troubleshooting.
Installs in Minutes
The flexible (PTFE) level sensor is only 20 inches in diameter when coiled making extremely easy to transport. Deployment cost and time can be significantly reduced by enabling just one person to perform the entire installation.
High Scalability
Up to 16 of these low-power level sensing instruments can be multi-dropped using a single 12Vdc power supply. There are multiple 3/4-inch NPT ports available on the sensor head to help you run conduit and wire with ease.
Great Peace of Mind
The OleumTech Resistive Level Sensors are Intrinsically Safe and are certified for use in Class I, Division 1 (Zone 0) hazardous locations, providing the highest level of safety under rigorous, extreme outdoor conditions.
Maximum Flexibility
You can choose either Modbus RTU or LevelMaster ASCII communication protocol option for interfacing virtually any existing SCADA or control system. This digital level sensor is also available with wireless options.
Rigid - 316 Stainless Steel
Resistive Level Sensors are available with the rigid 316SS option, ranging from 2 to 21 ft in lengths with multiple float options. The rigid sensor comes equipped with a 3/4-inch NPT 1-inch NPT height adjustable compression fitting.
Flexible - PTFE
Choice is Yours
You can take advantage of the 1/4-inch resolution version of the sensor with ±1/8-inch accuracy or take a more cost-effective approach by using the 1/2-inch resolution version that provides ±1/4-inch accuracy.
Ultimate Level Sensing Solution
The OleumTech® H-Series Resistive Tank Level Sensors are one of the best selling and top of the class level monitoring solutions available for use in hazardous and ordinary locations. This liquid level instrument is designed to measure three separate or distinct processes: product, interface, and temperature levels.
OleumTech’s patented Automatic Tank Gauges (ATGs) are offered in both flexible (PTFE) and rigid (316 SS) materials in various custom lengths. The 1/4” resolution sensors mate with the HW5800-RL3 and HW5800-RL4 sensor heads while the 1/2” resolution sensors mate with the HW5000-RL3 and HW5000-RL4 sensor heads.
Reliable, Scalable, and Safe
The field-proven level sensor can communicate with any Modbus RTU master or LevelMaster device via RS485 Serial connection. The low-power Resistive Level Sensor can be multi-dropped of up to 16 sensors. Additional data such as volume and tank full percentage can be calculated and reported as well, along with the core level variables. The Resistive Level Sensor is certified for use in Class I, Division 1 (Zone 0) hazardous locations.
This product is also available with wireless connectivity and a local display.
Applications
The Resistive Level Sensors are ideal for use as oil level sensors, water level sensors for storage tanks that contain either or both liquid densities. These level instruments are widely used in oil production tank batteries, condensate tanks, water treatment centers, petrochemical and chemical-making plants, wastewater handling and storage facilities, refineries, and power generating plants.
| CERTIFICATIONS & COMPLIANCE | |
|---|---|
| Safety | ∙ Intrinsically Safe for Use in Hazardous Environments |
| ∙ Class I, Division 1, Groups C, D T4; Ex ia IIB T4 Ga; Class I, Zone 0, AEx ia IIB T4 Ga, -40 °C ≤ Tamb ≤ 70 °C | |
| ∙ ATEX: Sira 16ATEX2229X; Ex ia IIB T4 Ga, -40 °C ≤ Tamb ≤ 70 °C | |
| ∙ IECEx: SIR 16.0079X; Ex ia IIB T4 Ga, -40 °C ≤ Tamb ≤ 70 °C |
| HARDWARE FEATURES | |
|---|---|
| Device Functionality | ∙ Serial Resistive Level Sensor |
| RL3/RL3-T: Modbus, 3-in-1 Measurement Capability: Product, Interface and Temperature | |
| RL4/RL4-T: LevelMaster ASCII, 3-in-1 Measurement Capability: Product, Interface and Temperature | |
| Embedded Controller | ∙ Ultra-Low Power RISC Microcontroller with Internal FLASH (Field Upgradeable) |
| Configuration | ∙ USB to RS485 Converter (SX1000-CC8) |
| Sensor Type | ∙ Resistive |
| Resolution | ∙ High Resolution, Depends on Sensor: 1/4" (6.4 mm) or 1/2" (12.7 mm) |
| Accuracy | ∙ ±1/8-inch for 1/4-inch Resolution Sensor ; ±1/4-inch for 1/2-inch Resolution Sensor |
| ∙ ±3.2 mm for 6.4 mm Resolution Sensor ; ±6.4 mm for 12.7 mm Resolution Sensor | |
| Power Source | ∙ External 6-12 Vdc (12 Vdc Max) |
| Self-Diagnostics | ∙ Contains Comprehensive Self-Checking Software and Hardware for Continuous Monitoring of Operation |
| Communication | ∙ Modbus or LevelMaster ASCII |
| Baud Rate | ∙ 1200-115200 bps |
| MECHANICAL SPECIFICATIONS | |
| Dimensions | ∙ 5" (W) x 7.6" (H) x 4.4" (D) / 127 mm (W) x 193 mm (H) x 112 mm (D) |
| Package Dimensions | ∙ 10.25" (W) x 14" (H) x 6.5" (D) / 260 mm (W) x 356 mm (H) x 165 mm (D) |
| Package Weight | ∙ ~4.5 lbs/ 2.0 kg |
| Connection Fitting | ∙ 3/4" NPT Female |
| Enclosure Casing Material | ∙ Type 4X Aluminum; IP66 |
| ELECTRICAL SPECIFICATIONS | |
| DC Power Input | ∙ 6-12 Vdc (12 V Max) |
| Power Consumption | ∙ 5.4 mA Max @ 6-12 Vdc |
| IS Safety Protection | ∙ Barrier Board (SX1000-BB1) |
| SENSOR | ||
|---|---|---|
| Type | ||
| Measurement Capabilities (3-in-1) | ||
| Lengths Offered in US Units | 8 to 38 ft Length in 1 ft Increments | |
| Lengths Offered in Metric | 2.44 to 11.58 m in 0.31 m increments | |
| Resolution and Accuracy | ||
| Sensor to Interface Mating Connection (No Wiring Solution) | ||
| Tank Mating Connection (Adjustable Compression Fitting) | 1" NPT Male | |
| Temperature Accuracy | ||
| Sensor Rod/Tubing Diameter | 0.85" (22 mm) | |
| Anchor Weight Diameter | 2.4" / 60.3 mm | |
| Height of Anchor Weight | 8 to 19 ft sensor: 5" | |
| 20 - 28 ft sensor: 6.75" / 29 - 38 ft sensor: 8" | ||
| Coiled Diameter | 20" (50.8 cm) Coiled Diameter | |
| Minimum Measurement from Bottom (Deadband) | From Top of Anchor Weight | |
| Pressure Rating | Float Dependent | |
| Sensor Only without Float(s) | 142 PSI / 9.8 Bar | |
| Sensor w/ 316 SS Float - Standard* | N/A | |
| Sensor w/ 316 SS Float - Large | 142 PSI / 9.8 Bar | |
| Sensor w/ Polypropylene (PP) Float | 72 PSI / 5 Bar | |
| Float Options: | ||
| *316 Stainless Steel - Standard, 440 PSI/30 Bar | ||
| 316 Stainless Steel - Large, 363 PSI/25 Bar | ||
| Polypropylene (PP), 72 PSI/5 Bar | ||
| Operating Temp. Sensing Area | ||
| Certifications | ||
| Power (Wireless) | ||
| Power (Hardwired) | ||
| Wireless Compatibility | ||
| Hardwire Serial Interface (H-Series Only) | ||
| Minimum Sensor Read Interval | ||
| Model #: 1/2" Resolution with ±1/4-inch Accuracy | 60-4101-xxx | |
| Model #:1/4" Resolution with ±1/8-inch Accuracy | 60-4102-xxx | |
| Kit #: 1/2" Resolution with Float(s) | TG-xxx-Fxx | |
| Kit #: 1/4" Resolution with Float(s) | TH-xxx-Fxx | |
| GENERAL SPECIFICATIONS | |
|---|---|
| Operating Conditions | ∙ Ambient Temperature (Class I, Division 1/ Zone 0): -40 °F to 158 °F (-40 °C to 70 °C) |
| ∙ Ambient Temperature (Non-Hazardous Applications): -40 °F to 176 °F (-40 °C to 80 °C) | |
| ∙ Humidity: 0 to 99 %, Non-Condensing | |
| Warranty | ∙ 2-Year Parts and Labor |
| Country of Origin | ∙ USA |
| ORDERING INFORMATION | |
|---|---|
| Model Numbers | ∙ 1/2" Resolution (6-pin): HW5000-RL3 (Modbus), HW5000-RL4 (LevelMaster ASCII) |
| ∙ 1/4" Resolution (8-pin): HW5000-RL3-T (Modbus), HW5000-RL4-T (LevelMaster ASCII) | |
| Barrier Boards | ∙ SX1000-BB1 |
| Configuration Kit | ∙ H-Series Configuration Kit (SX1000-CC8) |
LEARN MORE ABOUT OTHER LEVEL SENSING INSTRUMENTS BY OLEUMTECH
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