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<< KEP Signal Conditioners

KEP SC-FI
Frequency to Current Converter

  • Magnetic Pickup or Contact Closure
  • 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

Click here for larger image - KEP SC-FI Frequency to Current ConverterClick here for larger image - Yokogawa New Big Look Panel Meters
KEP SC-FI Shown

Product Information
Datasheet 73 KB
Manual 79 KB
Ordering Info Jump to Product Models, Prices, Accessories, and Ordering Information

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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 or contact closure inputs and the other is an isolated pulse input (depending on order code).

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 de-sired output range. Multi-turn potentiometers provide for the necessary trimming of span and zero.

 
General Specifications
Operating Temperature 32° F (0° C) to 158° F (70° C)
High Level Pulse Input Type: Opto-Isolated
Input Impedance: 3.3 kΩ
Logic 1: 4-30 VDC
Logic 0: 0-1 VDC
Frequency Range: 0-10 kHz
Fault Protection: Reverse Polarity Protection
Over Voltage Protection
Isolation Voltage: 500 V
Fast Transient Immunity: 500 V
Maximum Rise Time: No Limit
Maximum Fall Time: No Limit
Magnetic Pickup Input Input Impedance: 10 kΩ
Frequency Response: 0-3500 Hz
Trigger Sensitivity: 30 mV p-p
Over Voltage Protection: ±30 VDC
Contact Closure Input Sensor Compatibility Requires an isolated, contact closure
Maximum Contact Voltage 5 V
Maximum Contact Current 0.12 mA
Nominal Pullup Resistance 47 Kohm to 5 Vdc
Frequency Range 0-100 Hz
Frequency to current Conversion Standard 150 Hz, 300 Hz, 600 Hz, 1200 Hz, 2500 Hz, 5000 Hz, 10,000 Hz
Factory Default: 1000 Hz
Contact Closure Option 30 Hz, 60 Hz, 120 Hz, 240 Hz, 480 Hz, 960 Hz, 1920 Hz
Factory Default: 100 Hz
Analog Output Accuracy: ± 0.1% Span (@20° C)
Output Type: Two Wire, Loop Powered
Range: 4-20 mA
Compliance Voltage: 10 to 40 VDC
Loop Burden: < 10 VDC
Time Controls: Zero & Span, non-interacting
Linearity: <± 0.002% Span/Volt
Temperature Effect: < 200 PPM/C°
Noise Content: < 0.2% Span
Response Time: 0.1 second (1 sec. jumper selectable)
Overcurrent Limiting: 35 mA
Output Loop Indicator: LED illuminates when output loop is powered by proper polarity and blinks proportionally to the input frequency
 
Ordering Information
Model Description Buy Online Price
SCFIB KEP SC-FI-B Frequency to Current Converter with Nema 4x Mounting Buy Now $253.00
SCFIC KEP SC-FI-C Frequency to Current Converter with Explosion Proof Enclosure Buy Now $430.00
SCFID KEP SC-FI-D Frequency to Current Converter with DIN Rail Mount Buy Now $198.00
Included Accessories
 
  • 1 - Users manual
Included
Options
SCFIET KEP SC-FI-ET Extended Temp: -4° to 185° F (-20° to 85° C Buy Now $28.00
SCFIT KEP SC-FI-T Third Conduit Entry in EX-Proof Housing Buy Now $26.00
SCFIH2 KEP SC-FI-H2 0.875" Hole for mounting style B Buy Now $11.00
SCFIHF2 KEP SC-FI-HF2 0.5" Female NPT Hub Fitting Buy Now $26.00
SCFIH3 KEP SC-FI-H3 1.125" Hole for mounting Style B Buy Now $11.00
SCFIHF3 KEP SC-FI-HF3 0.75" Female NPT Hub Fitting Buy Now $26.00
Optional Accessories
DR4 KEP DR-4 4" DIN Rail Buy Now $6.00

KEP Catalog   |  KEP Price List

$40.00 Minimum on Total Order