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Monarch Instrument - Model F2A1X - Frequency to Analog Converter/Tachometer
The F2A1X Frequency to Analog Module converts a frequency input signal into a proportional analog voltage (0-5 Vdc) or current (4-20 mA) output. The output signal is electrically isolated from the 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 downloadable PM Remote Software. The PM Remote Software also displays data in real-time and allows data to be recorded to your PC in .csv format. The F2A1X requires 12-24 Vdc input power.
All models - Universal Input, non-contact operation from optical, infrared, laser, proximity, and magnetic sensors or direct TTL and 200 mV to 50 V ac signals
- Economically priced
- Compact, rugged and lightweight construction
- Electrically isolated input/output
- Compatible with most speed sensors
- 12 to 24 V dc input power
- User-configurable*
- View real-time data on PC with free downloadable PM Remote Software*
- Store data in .csv format in real-time*
- 4-20 mA or 0-5 V dc scalable output
- 5 V dc or 10 V dc sensor supply (jumper selectable)
*Requires optional USB Programming Cable
- Process monitoring
- Tachometer signal generator
- Quality control
- R&D
- Engine performance
- Signal conditioning
- Data acquisition
- Motor or pump monitoring

- Input Range: 0.1 to 10,000 Hz (5 to 600,000 RPM)
- Accuracy: 0.005%
- Resolution 76 µvolts or 30.5 nanoamps
- Power Supply: 12 to 24 V dc +/- 5% @ 150 mA max
- Inputs: TTL input or ± 3 V ac to ± 12 V ac, scaling is programmable using PM Remote Software and USB programming cable
- Sensor Excitation 5 V dc or 10 V dc @ 75 mA (user-selectable jumper setting)
- Recommended Sensors: LED - Monarch ROS-W
- Infrared - Monarch IRS-W
- Laser - Monarch ROLS-W
- Rugged Laser - Monarch RLS-W
- Magnetic - Monarch M-190, MT-190W
- Current Output Option: 4-20 mA out, 16-bit resolution. Zero and full-scale setting as specified when ordered or programmable using PM Remote Software and USB programming cable
- Voltage Output Option 0-5 V dc out, 5 mA 16-bit resolution. Zero and full-scale setting as specified when ordered or programmable using PM Remote Software and USB programming cable
- Environmental: Indoor use only, installation category II per IEC 664, Temperature: -10 °C to 50 °C operating per IEC 61010-1
- Humidity: 80% max for temps up to 31 °C, decreasing linearly to 50% RH at 40 °C
- Electrical Safety: Meets EN61010-1:2001, EC low voltage directive 72/23/EEC and 89/336/EEC
- Dimensions (LxHxW): 80 mm x 40 mm x 28 mm (3.2 in. x 1.6 in. x 1.2 in.) excluding mounting wings
*Specifications are subject to change without notice.
PM Remote Software is a free downloadable Windows-based software application that allows users to quickly and easily customize the configuration of Monarch’s ACT-1B, ACT-3X, F2A1X, and F2A3X panel tachometers. Set the mode of operation to RPM, RPS, or Frequency and select the input scale (pulses per revolution). Real-time data can be displayed directly on the PC along with min. and max values. Decimal places and display update rate are user-configurable.
Click here for complete details and to download the software.
Features
- Allows quick setup of ACT-1B, ACT-3X, F2A1X, and F2A3X
- Display live data remotely on PC
- Unit configuration can be saved for reloading in the feature
- Harmonized Tariff Code: 9029205000
- Country of Origin: US
- Export Control Classification Number (ECCN): EAR99