Fuel Sentry Tank Gauge and Leak Detection System

Capabilities

Leak Sensor Testing: All leak detection systems must be tested periodically over the 20-30 year life of the tank. The Fuel Sentry can automatically test each HD-A2-C discriminating leak sensor every day and print the result. Inspectors can remotely initiate HD-A2-C testing from the Fuel Sentry at any time and log the result

Oil Delivery Verification: With the high price of oil, it is important to pay only for the oil that is actually delivered. With a single level (or head) sensor, the TG-EL-D4B can automatically detect a delivery and print a time/date stamped ‘Gallons Delivered’ report which is used to verify the invoice before payment.

The TG-EL-D4B can also accept a flow meter signal, in addition to a level sensor, for higher accuracy delivery reporting. Delivery ‘shorting’ by air injection, or waste fluid blending, changes oil density which makes the oil truck delivery meter reading inaccurate. With two sensors per tank: head plus either level or delivery flow, the TG-EL-D4B can note suspicious oil density changes on the ‘Gallons Delivered’ printed report.

Idle Tank Theft Alarm: If the gallons in an idle tank drop excessively, the TG-EL-D4B can activate a time/date stamped "Theft Alarm." An external “Tank is Idle” contact closure (from an emergency generator,  pump set, or…) input detects small, slow volume changes. If this input is not available, the Fuel Sentry can trigger a Theft Alarm based on a higher than normal fuel consumption rate.

Overfill Alarm: The TG-EL-D4B can activate an FA-AV-x-D3 audible/visual overfill alarm located near the tank fill pipe to warn the driver to stop filling the tank. The audible alarm self-silences.

Data Logging, Printer, Communications: For a single tank configuration, the TG-EL-D4B automatically logs the following data into non-volatile memory:

• Last 2 inventories at midnight
• Last 50 deliveries with time/date
• Last 70 daily consumptions (midnight to midnight)
• Last 52 weekly consumptions (Sunday midnight to Sunday midnight)

For dual tank configurations, the data quantities are half of the above for each tank. The last 50 alarm (or status) messages are displayed with time/date stamp. Reports based on the above data can be automatically printed after every delivery, at midnight, after an alarm, or manually on demand. The data can also be read via RS485 Modbus (standard).

Fully Field Configurable: The TG-EL-D4B can be completely field configured from it’s LCD menus and keypad, or with the TG-EL-D4B_Edit PC-based software via the TG-EL-D4B USB port. Sensor type, function, channel, and calibration data can be configured. Relay functions can be assigned (high, overfill alarm, low, leak, theft, pump start, system error, …, common alarm). The 51-point stick chart (volume versus level) can be generated in 2 ways:

1. Based on tank dimensions for standard shapes. 
2. Manually entered values from the tank manufacturer's stick chart.

The resulting stick chart can be printed on the optional printer.