Issue Date: November 21, 2011
Revision Date: January 24, 2012
Fuel Oil Systems
Gems LS-750, Innovative Solutions L176-0108-0803 (Kele FS7SS), and Madison M4602-XXXX Sensors
with Fuels Oil Systems Console - FOS-0160-1, software version 001
INTERSTITIAL DETECTOR (LIQUID-PHASE)
For sensors installed in the hydrostatic fluid reservoir in a sump, the Gems LS-750 is programmed normally closed. When the hydrostatic fluid level in the reservoir drops below the operating level of the float, this sensor opens and an alarm condition is generated.
For underground storage tanks where the tank interstice is filled with fluid, a two position Madison M4602-xxxx level sensor is used. The upper float of the Madison M4602-xxxx level sensor assembly is located above the fluid in the UST hydrostatic reservoir and is programmed normally open. If the level of the hydrostatic fluid in the reservoir increases sufficiently to lift the float, the upper float closes and generates an alarm condition. The lower float of the Madison M4602-xxxx level sensor assembly is immersed in the reservoir's hydrostatic fluid and is programmed normally closed. If the level of the hydrostatic fluid drops below the operating level of the float, this sensor opens and an alarm condition is generated.
If liquid rises above the threshold of the Innovative Solutions L176-0108-0803 sensor in a sump, an alarm condition is generated indicating there is liquid present in the area where the sensor is installed.
If there is liquid in the interstitial space of a sump and it rises above the threshold of the Gems LS-750 sensor, an alarm condition is generated.
If there is liquid in the interstitial space of a tank and it rises above the threshold of the Madison M4602-xxxx sensor, an alarm condition is generated.
Alarms are indicated by an audible alarm; a visual message displayed on the Fuel Oil Systems console; and a printed message if the console is equipped with a printer. The alarms are also recorded as part of the Fuel Oil Systems console "Alarm History Report."
this list is not to be construed as an endorsement by any regulatory agency nor
is it any guarantee of the performance of the method or equipment.