Issue
Date: November 22, 2004
Robertshaw
Industrial Products
Centeron
High Level Alarm System
(SM Series Switch Monitor with Centeron FSL Series Float Switches:
Models *FSL AAA BB CC DD EE 0 and *FSL AAA BB CC DD EE C)
INTERSTITIAL
DETECTOR (LIQUID-PHASE)
Detector:
Output
type:
|
qualitative
|
Sampling
frequency:
|
continuous
|
Operating
principle:
|
reed
switch
|
Test
Results:
Model *FSL AAA BB CC DD EE 0
|
unleaded
gasoline
|
diesel
|
water
|
Detection
time (sec)
|
<1
|
<1 |
<1
|
Fall
time (sec)
|
<1
|
<1 |
<1
|
Minimum
Product Level (in)
|
0.883
|
0.895 |
0.809
|
Model *FSL AAA BB CC DD EE C
|
|
|
|
Detection
time (sec)
|
<1
|
<1 |
<1
|
Fall
time (sec)
|
<1
|
<1 |
<1
|
Minimum
Product Level (in)
|
0.902
|
0.893
|
1.70
|
Comments:
*FSL AAA BB
CC DD EE X indicates switch models where:
“AAA” represents the switch assembly
nominal length in inches;
“BB” represents the nominal wire harness length in feet;
“CC” represents the housing material;
“DD” represents the float material;
“EE” represents the mounting threads (if applicable);
“X” where a “C” in this position indicates that the assembly
is designed to be suspended by its cable,
otherwise this character will be “0”.
The FSL
series switches alone were evaluated at the bottom of the
test chamber.
The evaluator states that the switch mechanism can be suspended
from the top of a tank or other location where a high level
alarm is needed. Depth of the liquid will therefore differ
from levels reported.
The evaluator reports that the FSL series switches meet the
requirements for level sensors installed in tanks, sumps,
interstitial spaces or other configurations where the presence
of liquid needs to be indicated.
The FSL series switches are connected to the switch monitor.
An alarm signal is transmitted by radio frequency (RF) to
the alarm console where the condition of the sensor is indicated.
The evaluator reports that alarm information from the switch
monitor can also be received by a Centeron TC series controller
which can relay sensor condition by phone line to the Centeron
Data Collector for remote data access over the Internet. Transmission
of the RF signal to the controller was not evaluated.
Robertshaw
Industrial Products
|
Evaluator:
Ken Wilcox Associates
|
Robertshaw Industrial Products
|
Tel:
(816) 443-2494
|
Maryville,
TN 37801
|
Date
of Evaluation: 10/07/03
|
Tel:
(800) 237-7429 |
|
E-mail:
centeron@rsipd.com |
|
URL:
www.centeron.net
|
|
|