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AS-LLE Liquid Level Elements
SummaryThe AS-LLE liquid level element utilizes single or
multiple RTDs mounted in thermowells for direct installation into
tanks, reservoirs, sumps and gearboxes on commercial and military
aircraft, spacecraft, vehicles and marine applications. This sensor
is also available as single point and multipoint liquid level and
interface elements that connect to FCI or customer provided
electronics to indicate presence or absence of liquid level or
interface at the sensing point(s).
Please complete and submit the attached Application Data Sheet or
contact FCI’s Sales Representative in your area to receive a
technical quotation for your Liquid Level and Interface Element
application.
Applications |
|
 |
Remote oil
level sensor (ROLS) |
|
Fuel level
detection |
| |
Automation of
sight gauge level detection |
|
Collection
sumps |
| |
Hydraulic and
coolant reservoirs |
|
Oil/water
interface detection |
SpecificationsService: Liquid/gas level and
liquid/liquid interfaces. Single RTD (intermittent indication) and
dual RTD (continuous indication) monitored applications standard.
Accuracy: ± 0.25 inches [6.35 mm]
Repeatability: ± 0.1 inches [2.54 mm] level elevation.
Time Response: Single RTD intermittent detection sample
frequency many be every 2 minutes or longer; dual RTD continuously
monitored detection response time is 1 second or greater depending
upon switch point setting.
Reliability (MTBF): 100,000 to 250,000+ hours in gearbox
service depending on configuration.
Qualifications: MIL STD 810 and RTCA/DO-160, customer project
qualification support optionally available.
Quality System Approvals: ISO9001 and AS9000
Weight: 0.05 to 0.2 lbs. [ 0.02 to 0.09 kgs] depending on
configuration.
Materials of Construction:
Standard: All welded 300 series stainless steel.
Optional: Hastelloy C, titanium and other alloys.
Process Connection: Flanged, threaded per AS930, AS4395,
MS33656; surface mounted for internal applications; sight gauge
retrofit mounting, or other as required by customer.
Insertion Length: Flush mounted to 150 inches [3810 mm] as
required by customer.
Operating Temperature: -65° to +400° F [-54° to +204° C],
higher temperature service optionally available.
Operating Pressure: To 3000 psig [207 bar(g)]
Proof Pressure: To 6000 psig [414 bar(g)]
Electrical Connection: Military, commercial connector or
potted flying lead.
Controller - Provided by customer of FCI
Operating Temperature: -40° to +160° F [-40° to +71° C] Higher
temperature service optionally available.
Input Power: 28 Vdc nominal per MIL STD -704.
Power Consumption: 50 to 85 mA.
Output Signal: Source/sink or open connector.
Enclosure: Anodized aluminum and environmentally sealed.
Electrical Connection: Military or commercial connector.
EMI/ Lightning Protection: MIL STD-462 and RTCA/DO-160
Optional Equipment: Process temperature output. LED drivers,
controller functions (time delays, etc.)
Weight: 0.8 lbs [ 0.36 kgs]
Optional N.I.S.T. Test Lab Calibration Services
Factory N.I.S.T. calibration is available as an option for customer
specified setpoint(s). |
