AST4530 Level Transmitter

Brand: American Sensor Technologies Inc
AST Level Transmitter, AST4530
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AST4530 Level Transmitter

Brand: American Sensor Technologies Inc
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The AST4530 submersible pressure transducer is constructed using PVDF material and a PTFE diaphragm. 

Designed to measure liquid level of corrosive liquids, the AST4530 features submersible PVDF cable, cord grip and housing. The AST4530 features a conduit connection for turbulent installations such as on-board ships, turbulent tanks, and rail cars. 

Voltage and 4-20mA output signals allow users to interface for low current consumption or long distance transmission applications. The AST4530 is CSA157 certified to Class I Div 1, Groups C and D for use in intrinsically safe areas with an approved barrier, ANSI/ISA 12.27.01 Single Seal Approved and ATEX / IECEx Exia IIB Class I, Zone 0, T4. CAN/CSA C22.2 No 60079-0:11, ANSI/ISA 60079-0:09, CAN/CSA E60079-11:02, ANSI/ISA 60079-11:11, CAN/CSA C22.2N.157-92, UL 913 (6th Edition).
Features
  • ABS (American Bureau of Shipping) Approved
  • Class I Zone 0 Exia IIB T4 Ga (Ta = 0°C to 60°C)
  • Excellent Liquid and Gas Compatibility
  • Cost Effective Alternative to Ultrasonic and Radar Sensor Technologies
  • Works with Reflective Liquids
  • Will Not Fail Due to Vapor
  • No Galvanic Corrosion or Risk of Bacteria

Specifications

Brand

Accuracy

  • < ± 0.5 % BFSL at 25° C (77° F) Includes Non-Linearity, Hysteresis & Non-Repeatability

Ambient Temperature Range

  • 0° to 60° C (32° to 140° F)

Applications

  • Chemical Totes
  • Process Plants
  • Rail-Car Liquid Level Monitoring
  • Salt Water Holding Tanks
  • Storage Tanks

Approvals & Certifications

  • ATEX/IECEx Exia IIB Class I, Zone 0, T4
  • CSA 157 Class I, Div. 1, Groups C, D
  • UL 913 (6th Edition)

Bandwidth

  • (-3 dB), DC to 1 kHz at 0.5-4.5 V Ratiometric & 1-5 Vdc Output
  • (-3 dB), DC to 250 Hz at 4-20 mA Output

Burst Pressure

  • 5 times or psi: 1,250 (kPa: 8,618, bar: 86.18) whichever is less at 25° C (77° F)

Cable Length

  • 25 feet (7.62 metres)
  • 50 feet (15.2 metres)
  • 75 feet (22.86 metres)

Cable Material

  • PVDF Cable

Compensated Temperature

  • 0° to 55° C (32° to 131° F)

Current

  • 20 mA, Typical at 4-20 mA, 1-5 Vdc Output - Current Consumption
  • 3 mA, Typical at 1-5 mA, 1-5 Vdc Output - Current Consumption

Diaphragm Material

  • PTFE

Enclosure, Body Material

  • PVDF

Environmental Protection

  • IP68

Excitation Voltage

  • 10-28 Vdc at 4-20 mA, 1-5 Vdc Output
  • 5 Vdc Regulated at 0.5-4.5 V Ratiometric Output

Fill Material

  • Glycol - Fill Fluids
  • Silicone Oil - Fill Fluids

Humidity

  • 0 to 100 % Relative Humidity, Non-Condensing

Media

  • Chemicals
  • Corrosive
  • Liquids & Gases
  • Oil
  • Vapor
  • Water

NPT Connection

  • 1/4” NPT Female

Operating Temperature

  • 0° to 60° C (32° to 140° F)

Output

  • 0.5 - 4.5 V Ratiometric
  • 1-5 Vdc
  • 4-20 mA

Output Impedence

  • 10 Kiloohms at 4-20 mA Output

Output Load

  • 0-800 ohms at 10-28 Vdc
  • 10 kiloohms, Min. at 0.5-4.5 V Ratiometric & 1-5 Vdc Output

Output Noise

  • < 2 mV RMS at 0.5-4.5 V Ratiometric & 1-5 Vdc Output

Pressure Cycles

  • > 50 Million at 25° C (77° F)

Pressure Range

  • bar: 0 to 2.8
  • Inches WC: 72 to 600 - feet of Water Column: 6 to 50 at 4° C (Approximately)
  • kPa: 0 to 206
  • psig: 0 to 30

Reverse Polarity Protection

  • Yes at 0.5-4.5 V Ratiometric, 1-5 Vdc & 4-20 mA Output

RFI/EMI Protection

  • Yes

Shock

  • 100 G, 11 milliseconds, 1/2 Sine

Span & Zero Adjustments

  • < ± 2.0 % of Full Scale

Span Effect

  • < ± 1 % of Full Scale at 0.5-4.5 V Ratiometric, 1-5 Vdc & 4-20 mA Output - Span Tolerance

Storage Temperature

  • 0° to 80° C (32° to 176° F)

Vibration

  • 10 G Peak, 20 to 2,000 Hz

Wetted Materials

  • PTFE
  • PVDF
  • Viton

Zero Offset

  • < ± 1 % of Full Scale at 0.5-4.5 V Ratiometric, 1-5 Vdc & 4-20 mA Output

Documentation

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