Tank Gauge System

Single Tank Gauge

The Model TG-EL-D3 Tank Gauge and Leak Detection System is a remote reading, microprocessor-based tank gauge complete with an integral audible and visual alarm system for leak detection, tank overfill, and low liquid level alarm.

[Technical Information]

Features

• Accepts Model TG-EL-WF wire float or TG-EL-LF Lever Float level sensors
• Accepts up to three HD-A1 leak detectors
• Displays product inventory in both actual gallons and liquid depth
• Oil/Water leak discrimination displays
• Leak monitoring of both steel and fiberglass double wall tanks, double wall piping, and tank piping connection manholes, and vaulted tank containment areas
• Overfill alarm, leak detector and level sensor test capability
• Building Automation System (BAS) alarm relay outputs
• Volumetric 4-20 mAdc output
• FM Approved and complies with EPA regulation for leak detection and overfill alarm

Multi Tank Gauge

The Model TG-EL-D5 Multi-Tank Gauge and Leak Detection system is a comprehensive tank-gauging and leak-detection system that can simultaneously monitor product levels and leaks.  Intuitive displays operate on a simple menu system providing quick and easy navigation for all of the Model TG-EL-D5’s features.

[Technical Information]

Features

• Accepts Model TG-EL-WF Wire Float, ultrasonic or differential pressure level sensors

• Accepts up to 4 Level sensors

• Accepts up to 12 HD-A1 Leak Detectors

• 16 line by 40 character LCD display

• Building Automation System (BAS) RS485 Modbus communication port

• Volumetric 4-20 mAdc outputs for each tank

 

Major Capabilities

• Inventory Management

• Provides product level and volumetric data for each tank

• Maintains a delivery log with time/date stamp, product quantity and tank number

• Annunciation

• Provides high level and leak alarm monitoring

• Alarms are visible on the tank status display, activate the integral alarm horn and are logged with Time/Date stamp and English language description on an alarm summary display

• Telephone Modem

• The internally mounted Telephone modem permits the D5 to “Dial Out” to an alphanumeric pager and allows a user to “Dial In” to the D5 to view all displays

• Upon the receipt of the page, the user can “dial in” to the modem to acknowledge the message

• Fuel Transfer System Integration

• The TG-EL-D5 may be fully integrated into Preferred’s Automatic Fuel Oil Transfer Pump Set (ATPS)

• Both Pump Set and Tank Gauge status is available on a common LCD display and RS485 communication port

Level Sensor

[Technical Information]

Benefits

• Assures measurement accuracy
• The level sensors are intrinsically safe and suitable for underground installation
• Unaffected by tank fumes or changes in viscosity, conductivity, specific gravity, or other liquid variables

Types of Sensors

TG-EL-WF Level Probe (Wire Float)

• Extremely accurate and easy to install
• Ideal for low “Head Room” installation applications
• The float is connected via a flexible stainless steel cable to a multi-turn take-up reel within the sensor head
• Suitable for all fuel oils, including No. 6

TG-EL-LF Level Probe (Level Float)

• This is a lever based design
• Powerful mechanical advantage that permits its use with all fuel oils, including No. 6

Leak Detection

[Technical Information]

• Uses a combination electro-optic technology, which reliably distinguishes between water and oil
• Oils are detected by the optical liquid detector and water by both optical liquid detector and the conductivity ring
• Suitable for all grades of oil, including No. 6 and gasoline
• Up to (3) HD-A1 Leak Detectors can be connected to a single TG-EL-D3 tank gauge
• Up to (12) HD-A1 Leak Detectors can be connected to a single TG-EL-D5 Tank Gauge

Typical Installation areas include

• Fiberglass or steel tank annular space
• Piping or containment sump
• Vault spaces

Liquid Sensor positioned in an annular space