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KEP Products Distributed By:
Gross Automation
1725 S. Johnson Road
New Berlin, WI

Signal Conditioners

 
SC-FI
 

Frequency to Current Signal Conditioner
Features Description
  • Magnetic Pickup Input
  • Optically Isolated Input
  • 10 kHz Maximum Input Frequency
  • Standard, 2-Wire, 4-20 mA Output
  • Two Year Warranty
  • Loop Powered
  • Various Mounting Styles
  • LED Indicator
 The SC-FI is a two wire frequency to analog converter that converts a pulse rate input into a 4-20 ma output signal proportional to frequency or rate.

The input pulse rate is amplified and filtered by the input signal conditioning circuitry. Two forms of input signal conditioning are provided, one for magnetic pickups the other being an isolated pulse input.

The amplified frequency signal is then converted to an analog signal using a precision frequency to analog converter.

The output stage derives it’s power from the output current loop. The output stage converts the analog input signal into the desired output range. Multi-turn potentiometers provide for the necessary trimming of span and zero.

SC-FI data sheet
(Size 43 Kilobytes)

 


 
SC-II
 

  Current to Current Loop Powered Isolator
Features Description
  • 4-20 ma Input (10-50 ma optional)
  • 2-Wire, 4-20 ma Output (10-50 ma optional)
  • Two Year Warranty
  • Loop Powered
  • Input & Output LED Indicators
  • Various Mounting Styles
  • 0 to 10 kHz Pulse Output Option
 The SC-II loop powered isolator is a signal conditioner whose function is to provide a retransmitted, galvanically isolated 4-20 ma output signal in response to isolated 4-20 analog input.

The loop powered isolator may be applied in a similar manner as a conventional two wire transmitter.

The SC-II appears to the input loop as a series shunt resistor. A small sense resistor is used to measure the input current. The input loop derives it’s power from the input current loop.

This input current signal is then scaled and converted to a 0 to 10,000 Hz frequency signal by a Current to Frequency Converter. This frequency signal is then transmitted across an opto-isolator to the output stage.

The output stage derives it’s power from the output current loop. The output stage converts the 0-10000 Hz frequency signal into a current flowing in the output loop equal to that flowing in the input current loop.

The 0 to 10 kHz output and the 10-50 ma range options are provided to enable the unit to perform range conversions as well as signal isolation.

SC-II data sheet
(Size 40Kilobytes)

 


 
SC-FF
 

  Frequency to Frequency Pulse Isolator and Scaler
Features Description
  • Pulse Scaler with Isolation
  • Pulse, Contact Closure or Magnetic Pickup Inputs
  • Two Year Warranty
  • Various Mounting Styles
  • Output LED Indicator
 The model SC-FF is a signal conditioner which permits the user to condition and scale the input pulses from a pulse producing sensor into a high level output where each pulse represents a engineering unit of measure.

Several pulse input types are supported including magnetic pickup, contact closure, and an isolated pulse input.

The pulse scaling permits a user to apply a scaling multiplier with a value of .0001 to .9999 with additional multipliers of 1, .1, .01, .001 and .0001. Pulse scaling is accomplished by rotary encoded and dip switch selections.

The pulse output is available in isolated, non-isolated and relay versions. User selections include output pulse duration and internal pullup resistors. The user may select his pulse output configuration by means of a dip switch.

The unit is powered to 8 - 35 VDC. Reverse polarity protection is provided. Power and Pulse input/output indicators are provided.

The unit is available in enclosures intended for either DIN rail, NEMA4X or Explosion Proof.

SC-FF data sheet
(Size 49 Kilobytes)


 
SC-IF
 

Current to Frequency Loop Powered Isolator
Features Description
  • 4-20 mA Input (10-50 mA optional)
  • 0 to 10 kHz Pulse Output
  • Two Year Warranty
  • Loop Powered
  • Input & Output LED Indicators
  • Various Mounting Styles
The SC-IF loop powered signal conditioner whose function is to
provide a 0 - 10kHz frequency output signal in response to a 4-
20 analog input.
The SC-IF appears to the input loop as a series shunt resistor. A
small sense resistor is used to measure the input current. The
input loop derives it’s power from the input current loop.
This input current signal is then scaled and converted to a 0 to
10,000 Hz frequency signal by a Current to Frequency Converter.
This frequency signal is then transmitted across an opto-isolator
to the output stage.
The 10-50 mA range option is provided to enable the unit to
perform range conversions as well as signal isolation.
SC-IF data sheet
(Size 32 Kilobytes)