Issue Date:  June 8, 2009

Preferred Utilities Manufacturing Corporation

PWCN4-CDXRxxx Controller, RBS Non-Discriminating Sensors for Sumps and Containments; PS-LDS Non-Discriminating Sensor for Sumps and Containments; PLS Non-Discriminating Sensor for Reservoirs

INTERSTITIAL DETECTOR (LIQUID-PHASE)

Detector:           

Output type

qualitative

Sampling frequency

continuous

Operating principle

reed switch/float

 

Test Results:

 

Non-Discriminating Sensors

 

diesel

water

RBS Rupture Basin Switch

(Sumps and Containments)

Detection time (sec)

<1

<1

Fall time (sec)

<1

<1

Lower detection limit (in)

1.411

1.120

 

PS-LDS Pump Set Leak Detector Switch

(Sumps and Containments)

 

 

Detection time (sec)

<1

<1

Fall time (sec)

<1

<1

Lower detection limit (in)

1.267

1.255

 

PLS Liquid Level Switch

(Reservoirs - High and Low Level Floats - up to six floats)

   
Detection time (sec) <1 <1
Fall time (sec) <1 <1
Lower detection limit (in) 2.443 2.220

 

Comments:
Control panel models:  PWCN4-CDXRxxx for liquid level sensors;

Can be used in normally open or closed positions, and wired to alarm or to shut down equipment.

Minimum Specific Gravity:  RBS=0.65, PS-LDS=0.75; PLS=0.5

 

 

 

Preferred Utilities Manufacturing Corporation

Evaluator:  Ken Wilcox Associates

31-35 South Street

Tel:  (816) 443-2494

Danbury, CT 06810

Date of Evaluation:  1/20/09

Tel:  (203) 743-6741

 

E-Mail:  DCosgrove@preferred-mfg.com  
URL:  www.preferred-mfg.com  
 

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