|
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 |
|
| 
