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AS-LLT Liquid Level Transmitters
SummaryFCI provides liquid level and interface transmitters
that include a “strip sensor” or a thermowell mounted sensing
element with integral or remote electronics that provide continuous
indication of liquid or interface level along the length of the
element. The liquid level element is directly installed into tanks,
reservoirs, sumps and gearboxes on commercial and military aircraft,
spacecraft, vehicles and marine applications. Optional temperature
signal output and controller function is available.
Please complete and submit the attached Application Data Sheet or
contact FCI’s Field Representative in your area to receive a
technical quotation for your Multipoint Liquid Level and Interface
Transmitter application.
Applications |
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Potable water |
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Refrigerant |
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Fuel |
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Liquid oxygen |
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Hydraulic fluid |
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Coolants |
SpecificationsService: Liquid level continuous
measurement.
Accuracy:
Level: ± 2% full scale.
Temperature: ± 1% full scale.
Repeatability:
Level: ± 1% full scale.
Temperature: ± 1% full scale.
Time Response (typical): Dry to Wet = 5 seconds; Wet to Dry =
120 seconds.
Reliability (MTBF): 60,000+ Hours.
Qualifications: MIL STD 810 and RTCA/DO-160.
Quality System Approvals: ISO9001 and AS9000
Weight:
Level Sensor: 1 to 2 lbs [0.45 to 0.90 kgs] depending on
length.
Remote Enclosure: 1.5 lbs. [0.68 kgs].
Level ElementMaterials of Construction:
Standard: 316 stainless steel mounting connection with PVC
stilling well structure and
Kapton polyimide RTD elements..
Optional: All 316 stainless steel level element with
brazed or all-welded design.
Process Connection:
Standard: Flange.
Optional: Threaded..
Insertion Length: Up to 40 inches [1016 mm] as specified by
customer.
Operating Temperature:
PVC/Kapton Polymide Design: -65° to +158° F [-54° to +70°
C].
Stainless Steel Design: -65° to +650° F [-54° to +343°
C].
Proof Pressure:
PVC/Kapton Polymide Design: Up to 300 psig [21 bar(g)].
Stainless Steel Design: Up to 2000 psig [138 bar(g)]
Electrical Connection: Connector on flying lead or
element-mounted connector.
Controller
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: 0.5 to 4.5 Vdc (0% to 100% immersion) 0.25 Vdc;
4.75 Vdc Built in Test (error conditions); 0 to 20 mA, 600 ohm
impedance optionally available.
Enclosure: Aluminum alloy painted lusterless black per
MIL-C-83286.
Optional Equipment: Integral electronics and material
certificates.
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). |
