ENCORE ELECTRONICS INC.
Model FL228
Frequency to Voltage Converter
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Specifications
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Operation
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Input and output ranges
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Versions chart
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Schematic B14140 Rev M for FL228
Except -001, -002 versions
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Schematic B14529 for FL228-001, -002
FL228 Frequency to Voltage Converter
Rev. 7/5/01; 10/9/09; 4/19/11; 2/3/12; 4/26/12; 10/21/14
1 www.encore-elec.com
SPECIFICATIONS
Model FL228
Frequency to Voltage Converter
INPUT VOLTAGE: Max ±20V peak
INPUT THRESHOLD: FL228-000, -004, -011, -012, -016,
-024, -057: 0V with +70mV hysteresis
-001, -002: Switchable, 0V or 300mV with +10mV hysteresis
-003, -005, -009, -052: 1.0V with +70mV hysteresis
-010, -006: 300mV with +70mV hysteresis
-007, -008A, -056: 1.8V with +70mV hysteresis
INPUT IMPEDANCE: >10M
Ω
0 to ±0.5V, 10K
Ω
±0.5 to ±20V
FULL SCALE OUTPUT: See version chart on page 4
All outputs rated for 5mA max. load
LINEARITY ERROR: .01% max.
OPERATING TEMPERATURE: 0 to 50ºC
POWER REQUIREMENT: See chart on page 4 for supply voltage; current = 30mA max.
PACKAGE: 3.12"H x 2.88"D x 0.88"W DIN-rail mount box
-009 TRANSIENT RESPONSE: 15ms 10% to 90% FS response
-009 RIPPLE: 5mV pk/pk @1kHz
FL228 Frequency to Voltage Converter
Rev. 7/5/01; 10/9/09; 4/19/11; 2/3/12; 4/26/12; 10/21/14
2 www.encore-elec.com
OPERATION
Model FL228
Frequency to Voltage Converter
Connect the FL228 Input terminals to the desired signal source.
If the source is an open collector output (as found on some proximity probes), an appropriate pull up resistor should be connected at the signal source to produce a voltage pulse for the Model FL228. Check your source's documentation for resistor value and connection information.
Connect the output terminals to the desired readout, recording,or control device.
For the 18-30VDC powered versions, connect a 24V power supply capable of at least 30 mA to the +24V and 24V COM terminals. For all other versions, connect a +12VDC power supply to the +12V Nom and Pwr Com terminals.
FL228 Frequency to Voltage Converter
Rev. 7/5/01; 10/9/09; 4/19/11; 2/3/12; 4/26/12; 10/21/14
3 www.encore-elec.com
INPUT AND OUTPUT RANGES
Model FL228
Frequency to Voltage Converter
Version
FL228-000
FL228-001
FL228-002
FL228-003
24V (18-30VDC)
Input
20Hz-10kHz
Conversion F.S. Out
1.0mV/Hz 10VDC
12V (10-16VDC) 50Hz-25kHz 0.2mV/Hz 5VDC
12V (10-16VDC) 20Hz-10kHz 0.5mV/Hz 5VDC
12V (10-16VDC) 5Hz-150Hz 30mV/Hz 4.5VDC
FL228-004 12V (10-16VDC) 20Hz-10kHz 0.5mV/Hz 5VDC
FL228-005
FL228-006
FL228-007
24V (18-30VDC)
24V (18-30VDC)
20Hz-5kHz
12V (10-16VDC) 20Hz-1kHz
20Hz-10kHz
2.0mV/Hz 10VDC
5.0mV/Hz 5VDC
0.4mV/Hz 3.4VDC
FL228-008A
FL228-009
FL228-010
FL228-011
FL228-012
FL228-024
24V (18-30VDC)
24V (18-30VDC) 1kHz-5kHz 2.0mV/Hz 10VDC
12V (10-16VDC) 20Hz-3kHz 1.67mV/Hz
24V (18-30VDC)
24V (18-30VDC)
24V (18-30VDC)
5Hz-100Hz
1kHz-4kHz
3Hz-600Hz
20Hz-2kHz
45.mV/Hz
2.5mV/Hz
8.3mV/Hz
4.5VDC
-0.6VDC
10VDC
5VDC
5VDC
FL228-026
FL228-052
FL228-056
FL228-057
24V (18-30VDC) 20Hz-1kHz
12V (10-16VDC) 5Hz-500Hz
10mV/Hz
10mV/Hz
10VDC
5VDC
With a four pulse-per-rev pickup, the -003 output will be 4.0V at 2000 rpm.
FL228 Frequency to Voltage Converter
Rev. 7/5/01; 10/9/09; 4/19/11; 2/3/12; 4/26/12; 10/21/14
4 www.encore-elec.com
