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Home > Kotron® 804 - Explosion Proof with Relays
 Kotron® 804 - Explosion Proof with Relays   Printer Friendly Version
The Sentinel Model 804 is a unique, powerful level transmitter. The leading edge microprocessor-based circuitry has nonvolatile memory. The display and keypad simplify calibration and setup of the instrument. Powerful diagnostics not only check all functions of the system, they also simplify troubleshooting.
Operating Principle Features Industries Options Downloads Approvals
 
The amount of capacitance developed in any vessel, is determined by the size (surface area) of the probe, the distance from the probe to its ground reference, and the dielectric constant of the medium being measured.

Considering that the probe's mounting position is fixed and the dielectric of the medium is constant, then the amount of capacitance developed in any vessel becomes dependent upon the amount of the probe which is covered with media.

As the media rises and falls in the tank, the amount of capacitance developed between the probe and the ground reference also changes. The Pulsatel™ circuit mounted on the probe changes the capacitance signal to a frequency proportional to the change in level. The amplifier then converts this digital signal into an isolated 4-20 mA analog output signal.

 

  • Two or four relays
  • Optional intrinsically safe probe circuitry
  • 16-button keypad
  • 2 line by 16 character LCD display
  • Powerful self-diagnostics check the system
  • Small change in level required for calibration
   

  • Input power
  • Relays
  • Integral or remote electronics
  • Probe selection
 
 Literature: (US English)
  Sales Literature
  Instruction Manual
  Sensing Probe
  Technology Brochure

  
  • XP   

  • IS   

    		•
  • XP   

  • IS   
    		•
  • ELV   
    		•
  • YES   
    		•
    XP = Explosion Proof  •  IS = Intrinsically Safe  •  NI = Non-Incendive  •  NS = Non-Sparking  •  ELV = EMC/Low Voltage