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F2A1X Frequency to Analog Converter/Tachometer - Monarch Instrument

F2A1X Frequency to Analog Converter/Tachometer


Regular price $249.00 Sale


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The F2A1X Frequency to Analog module converts a frequency input signal into a proportional analog voltage (0-5Vdc) or current (4-20mA) output. The output signal is electrically isolated from input signal and input power source effectively eliminating troublesome ground loops. The input signal can be supplied from a Monarch sensor (measuring RPM for example) or any source of digital signal not exceeding 12 volts. The F2A1X is factory pre-programmed with the full scale output and input scale factor of your choice. These settings are also user configurable with the optional USB programming cable and PM Remote Software. PM Remote Software also displays data in real-time and allows data to be recorded to your PC in .csv format. The F2A1X requires 12-24Vdc input power.


  • Process monitoring
  • Tachometer signal generator
  • QC and R&D
  • Engine performance
  • Signal conditioning
  • Data acquisition
  • Motor or pump monitoring


All models - Universal Input, non-contact operation from optical, infrared, laser, proximity, and magnetic sensors or direct TTL and 200mV to 50 Vac signals

  • Economically priced
  • Compact, rugged and lightweight construction
  • Electrically isolated input/output
  • Compatible with most speed sensors
  • 12 to 24 Vdc input power
  • User configurable*
  • View real-time data on PC with Free PM Remote Software*
  • Store data in .csv fomat in real-time*
  • 4-20mA or 0-5Vdc scalable output
  • 5Vdc or 10Vdc sensor supply (jumper selectable)
  • *Requires optional USB programming cable 



Input Range: 
0.1 to 10,000 Hz (5 to 600,000 RPM)
Dimensions: L x W x H = 80 x 40 x 28 mm (3.2 x 1.6 x 1.2 inches) excluding the mounting wings
Power Supply: 12 to 24Vdc +/- 5% @ 150mA max
Inputs: TTL input or +/- 3Vac to+/- 12Vac
Programmable using PM Remote Software and USB programming cable.
Sensor Excitation:
5 Vdc or 10 Vdc @ 75mA (user selectable jumper setting)
Recommended Sensors: Optical - Monarch ROS-W Infrared - Monarch IRS-W Laser - Monarch ROLS-W
Current Output Option:
4 to 20 mA out, 16 bit resolution (0.0015%) 10Vdc compliance voltage. Zero and Full scale RPM settings as specified when ordered or programmable using PM Remote Software and USB programming cable.
Voltage Output Option: 0 to 5 Vdc out, 5 mA, 16 bit resolution (0.0015%). Zero and Full scale RPM settings as specified when ordered or programmable using PM Remote Software and USB programming cable.
76 micro-volts or 30.5 Nano amps
Environmental: Indoor use only, Installation category II per IEC 664
Temperature: -10 deg. C to 50 deg. C operating per IEC 61010-1
Humidity: Maximum relative humidity 80% for temperatures up to 31 deg. C, decreasing linearly to 50% relative humidity at 40 deg. C.
Electrical Safety: Meets EN61010-1:2001, EC low voltage directive 72/23/EEC and 89/336/EEC.





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