Delavan Captrol Integral 500

 Delavan Process Instrumentation manufactures products including solid and liquid point level and continuous level measurement. Delavan is a well-established company with a large customer base in a wide range of industries. Technologies include ultrasonic, capacitance, and microwave all of which complement and integrate with the L & J product offering.

Delavan has a proven track record of providing solutions to both bulk solids and liquids handling. Applications include wood chips, bailer, insulation products, coal handling paper/pulp production, petrochemical, and pharmaceuticals.

Delavan’s Captrol 500 is a cost-effective Microcontroller Based R.F. Capacitance On/Off Switch used in powder bulk solid and liquid applications.

“One-Touch” Button Calibration
With the utilization of our Microcontroller and Delavan’s unique Auto-Cal algorithm, calibration is accomplished with a momentary touch of a button. No special tools, complicated procedures, or valuable time is needed.

Principle of Operation
The Captrol 500 Microcontroller Based Point Level Switch consists of solid-state electronics mounted in a cast-aluminum explosion-proof enclosure. The rugged sensing element utilizes a driven guard designed to eliminate the effects of material build-up or coatings that may cause false signals.

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The sensing element’s “active” section is energized with an R.F. (Radio Frequency) signal approximately 2mHz. When the process level changes, a change in capacitance occurs resulting in a change in frequency. This change in frequency is compared to a preset value and after amplification, the signal is used to actuate a relay.

Features

R.F. Capacitance On/Off Switch for powder bulk solids and liquid applications

• Integral or remote mount electronics
• On-board microcontroller
• One-touch button calibration
• Built-in “self-diagnostics”
• Built-in driven shield/guard
  designed to eliminate false signals caused by material build-up or coatings
• Universal power supply
  115, 230 Volts AC or 24 Volts DC
• Status Indication LED's
• Adjustable sensitivity
• Adjustable time delay
• Field selectable Fail-safe modes
• Built-in static suppression
• Explosion-proof design
• 3/4" stainless steel N.P.T. and flange mounting

Specifications

• Supply Voltage:
  NOMINAL
  115 Volts AC
  230 Volts AC
  24 Volts AC
  ABSOLUTE LIMITS
  90-135 Volts AC
  180-279 Volts AC
  18-28 Volts AC
• Power: Less than 3 volt-amperes 
• Frequency, AC Power: 50-60 Hz
• Output: Relay-5 amp DPTDT 
• Ratings: 
  5 amp @ 115 Volts AC Non-inductive
  3 amp @ 230 Volts AC Non-inductive
  3 amp @ 26 Volts AC Non-inductive
• Time Delay: Adjustable: .1 to 30 seconds
• Fall-Safe Switch Selectable: High Level or Low Level
• Indicators: Two light-emitting diodes (LED), GREEN - Illuminated when the probe capacitance is greater than the setpoint, RED - Illuminated when relay is energized
• Temperature Range:
  Electronic: -40°F to +160°F (-40°C to +71°C)
  Probes: G.I.M.F.: -40° to 450°F (-40° to +232°C); G.I.M.N.: -40° to 300°F (-40° to +149°C); G.T.: -40° to 450°F (-40° to +232°C)
• Pressure Rating:
  G.I.M.F. and G.I.M.N.: Up to 500 psi
  Teflon probes: Up to 400 psi
• Housings Cast Aluminum with Fused Polyester Finish:
  Meet NEMA 4, 5, 7, 9, 12;
  NEC Class I - Groups C, D
  NEC Class II - Groups E, F, G
• Stability: 0.01%F 
• Sensitivity:
  Adjustable
  0.5 pF to 10 pF
  Bulk solids - 10lbs./cu. ft. and greater
  Liquids - 1.5 Dielectric constant and greater

Download Datasheet: Delavan Captrol Integral 500

Reference: ljtechnologies