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Issue Date: November
22, 1995
Revision Date: August 23, 2010
Veeder-Root
TLS-300 Series, TLS-350 Series,
TLS-450 Series, EMC Series, EMC Basic,
Red Jacket ProMax and ProPlus with
Single Stage Hydrostatic Sensor 794380-301,
Dual Stage Hydrostatic Sensors 794380-302, 303
INTERSTITIAL DETECTOR (LIQUID-PHASE)
Detector:
Test Results:
|
Single Stage Hydrostatic Sensor 794380-301 |
30% by weight
calcium chloride in water |
50% by weight
propylene glycol in water |
*50% by weight
ethylene glycol in water |
|
Product Activation Height (in) |
1.74 |
1.94 |
1.5 |
|
Response time (min) |
<1 |
<1 |
35.75 |
|
Recovery time (min) |
<1 |
<1 |
<1 |
|
|
|
|
Dual Stage Hydrostatic Sensor 794380-302** |
water |
|
high*** |
low*** |
|
Product activation height (in) |
12.25 |
1.62 |
|
Response time (min) |
<1 |
<1 |
|
Recovery time (min) |
<1 |
<1 |
|
Dual Stage Hydrostatic Sensor
794380-303
|
30% by weight
calcium chloride in water |
50% by weight
ethylene glycol in water |
|
high*** |
low*** |
high*** |
low*** |
|
Product activation height (in) |
13.13 |
1.20 |
13.15 |
1.48 |
|
Response time (min) |
<1 |
<1 |
<1 |
<1 |
|
Recovery time (min) |
<1 |
<1 |
<1 |
<1 |
* Evaluation performed by Carnegie Mellon Institute.
** Dual Stage Hydrostatic Sensor 794380-302 was replaced by Sensor 794380-303 and
is not supported by TLS-450 series console.
*** The
"high" and "low" refer to high and low level alarm points of
dual stage hydrostatic
sensors.
Comments:
EMC Series and EMC Basic controllers have been evaluated only for use
with sensors 794380-301 and 794380-303.
Evaluator reports that sensors will respond to any liquid after their thresholds
are exceeded.
Response times measured from trigger point, except for sensor 794380-301 with
50% by weight ethylene glycol in water, where response time also included time
for liquid level to rise from bottom of a test cylinder to trigger point.
Evaluator reports sensors can easily be removed, cleaned, and reinstalled after
an alarm was triggered or for periodic testing.
Sensors are reusable.
Comparison of TLS-450 with TLS-350 series console showed comparable results when
evaluated with representative sensors.
Single Stage Hydrostatic Sensor 794380-301:
Intended to monitor level of propylene glycol, ethylene glycol, or calcium chloride
solutions in interstitial or annular space of a double-walled tank.
If the brine level in the reservoir drops below the threshold of the sensor, an
alarm condition is generated.
The evaluation using 30% by weight calcium chloride in water was reevaluated
using a different acceptable test protocol.
Dual Stage Hydrostatic Sensor 794380-302:
Alarm is activated if any significant gain or loss of solution occurs.
Dual stage hydrostatic sensor 794380-303 has replaced this sensor and is fully
interchangeable with this sensor.
Vendor will discontinue production of this sensor as of December 31, 2003.
Dual Stage Hydrostatic Sensor 794380-303:
If brine level or propylene glycol level in reservoir drops below the threshold of low-level sensor or
if any liquid rises above the threshold of high level sensor, an alarm condition
is generated.
Alarms are indicated by an audible alarm, displayed message on the console,
printed message (if the console is equipped with a printer), and recorded as
part of the console “Alarm History Report.”
|
Veeder-Root |
Evaluator: Carnegie Mellon
Research Institute |
|
125 Powder Forest Dr. |
Tel: (412) 268-3495 |
|
Simsbury, CT 06070-2003 |
Dates of Evaluations:
12/07/92, 03/16/98 |
|
Tel: (860) 651-2700 |
Evaluator: Ken Wilcox Associates |
|
E-mail:
info@veeder.com |
Tel: (816) 443-2494 |
|
URL:
www.veeder.com |
Dates of Evaluations: 07/08/02, 02/02/03,
03/03/08, 02/05/10 |
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