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)

Detector:

Output type:

qualitative

Sampling frequency:

continuous

Operating principle:

float switch

 

Test Results:

Gems LS-750

Sump Monitoring Sensor

water

diesel

propylene

glycol

50% by weight

propylene glycol

in water

Detection time (sec)

<5

<5

<5

<5

Fall time (sec)

<5

<5

<5

<5

Precision - standard deviation (in)

0.0029

0.0025

0.002

0.0029

Lower detection limit (in)

1.094

1.285

1.053

1.088

Innovative Solutions

L176-0108-0803 (Kele FS7SS)

Sump Interstice Sensor

 

 

 

 

Detection time (sec)

<5

<5

<5

<5

Fall time (sec)

<5

<5

<5

<5

Precision - standard deviation (in)

0.013

0.0027

0.0025

0.0027

Lower detection limit (in)

0.847

0.955

0.840

0.851

Madison M4602-XXXX

Tank Interstice Sensor

 

 

 

 

Detection time (sec)

<5

<5

<5

<5

Fall time (sec)

<5

<5

<5

<5

Precision - standard deviation (in)

0.0027

0.0023

0.0037

0.0043

Lower detection limit (in)

1.375

1.596

1.389

1.392
         

 

Specificity Results:
Manufacturer and evaluator claim sensors will respond to any liquid.  No additional materials were tested.
 

Manufacturer's Specifications:
Manufacturer states that any of the sensors can easily be removed, cleaned, and reinstalled if an alarm is triggered or for periodic testing.
 

Comments:
For sensors mounted on the floor of a sump, the Innovative Solutions L176-0108-0803 sensor is programmed normally open.  When liquid rises sufficiently in the bottom of the sump to lift the float, this sensor closes and an alarm condition is generated.

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."

 

Fuel Oil Systems

Evaluator: Ken Wilcox Associates

3167 Corporate Place Tel:  (816) 443-2494

Hayward, CA 94545

Date of Evaluations:  10/01/11

Tel:  (510) 727-6701

  

E-mail:  info@fueloilsystems.net

  
URL:  www.fueloilsystems.net  
 

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