
Description
The F2A3X Frequency to Analog Converter is a DIN rail module that converts a frequency input signal into a proportional analog voltage (0-5Vdc) or current (4-20mA) 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 F2A3X is completely user-programmable using the free downloadable PM Remote Software. A NIST certificate of calibration is included.
TYPICAL USES
- Process monitoring over networks
- Tachometer signal generator
- QC and R&D
- Engine performance
- Signal conditioning
- Data acquisition
- Motor or pump monitoring
Features
- Standard DIN rail mounting
- Ethernet communications available
- 5 to 999,990 RPM range (0.083 to 150kHz)
- Compatible with most speed sensors (TTL)
- 12 to 24 Vdc input power
- Alarm set point with optional relay output
- Pulse repeater output
- User-configurable
- View real-time data on PC
- 4-20mA or 0-5 Vdc scalable output
- 10 Vdc or 5 Vdc sensor excitation
- NIST Calibration Certificate included
Specifications*
Input Range | 5-999,990 RPM speeds below 5 RPM possible with multiple pulses per revolution (0.083 Hz to 150 kHz) |
Input Configuration and Voltage Range | 1 to 9,999 pulse per revolution or use a scale factor of 0.0001 to 99,999; PC software programmable, TTL input and 1.1V to 25Vdc signals – Internal Jumper for ±1 to ±25Vac |
Analog Output | Voltage: 0-5Vdc, 5mA max load, Isolated or 4-20mA Isolated, 500 ohm max load, Internal 12V compliance voltage, 16-bit resolution; full scale and offset RPM ranges PC programmable |
Accuracy/Resolution | 0.005% of full-scale output / 76 micro-volts or 30.5 Nano amps |
Output Update | Software selectable up to 244 times/sec; dependent on the input frequency |
Memory | Max and min recall via PC software |
Dimensions | 1/8 DIN by 3.94" (100mm) deep |
Input Power | Standard 12-24Vdc, 4.5W max or optional 12Vdc to 24 Vdc isolated 4.5W max |
Sensor Excitation | 10Vdc @ 60mA standard or 5Vdc @ 60mA optional |
Pulse Repeater Output | 0-5V TTL compatible, one pulse out for each pulse in; polarity is software selectable |
Communications | Standard: serial, requires USB interface cable Optional: Ethernet RJ45 or USB type B |
Alarm Capability |
Optional alarm with relay output Set-points: high or low alarm limit, latching or non-latching PC Programmable |
Alarm Outputs | 1 form C relay contact, rated 1A at 115Vac or 230Vac |
Alarm Reset | Automatic or manual reset; front panel push button or remote reset via PM Remote Software |
Environmental |
Indoor use only; installation category II per IEC 664 Temperature: -10° to 50° C, operating per IEC 61010-1 Humidity: 80% max to temps up to 31° C, decreasing linearity to 50% RH at 40°C |
Electrical Safety | Meets EN61010-1:2001, EC low voltage directive 2006/95/EC |
*Specifications are subject to change without notice.
PM Remote Software
PM Remote Software is a free downloadable Windows-based software application that allows users to quickly and easily customize the configuration of Monarch’s ACT1B, 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 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


Click here for complete details and to download software.
Shipping Codes for F2A3X Frequency to Analog Converter/Tachometer (all models):
Harmonized Tariff Code: 9029205000
Country of Origin: US
Export Control Classification Number (ECCN): EAR99