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ACT-3X Panel Tachometer


Regular price $299.00 Sale

Extended Warranties are Available

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The ACT-3X Panel Tachometer is a powerful NIST calibrated fully programmable tachometer and totalizer. It accepts inputs from all Monarch speed sensors or from any standard TTL generating device. The unit operates from 120/240Vac input power or from 12 or 24Vdc input power (optional). Programming is easily performed through the 5 front panel push buttons or using the free downloadable PM Remote Software. Set up for single channel monitoring. Programmable scale factor with menu selection for multiple pulses per revolution, linear rates, totalization, single event trip speeds (using auxiliary input) and rate of change in rpm. A TTL pulse repeater output is standard. Recommended sensors with PN -W (= tinned leads), ROS-W, ROS-HT-W-25P5-11, PS-12M-190WIRS-WROLS-W, RLS-WSLS-115/230, CSLS and GE-200HP Gas Engine Sensor (with amplifier).



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

ACT-3X Panel Tachometer

  • 1/8 DIN sized
  • 5 Digit LED display
  • 5 to 999,990 RPM range
  • Universal sensor inputs
  • N.I.S.T. Traceable Certificate of Calibration included
  • User configurable with front panel push buttons or free downloadable PM Remote Software
  • View real-time data on PC*
  • Record data in .CSV format in real-time*
  • Universal A/C power 100 to 240 Vac, 50/60Hz or optional 12 or 24Vdc power
  • Standard pulse repeater output
  • Single event capture from start and stop pulses, in units such as MPH, CM/sec, etc.using two sensors - for linear rate of travel on second input channel
  • Optional 4-20mA or 0-5Vdc scalable output
  • Optional Ethernet or USB communications
  • Optional alarm relay outputs

*If no communications option is ordered requires USB programming cable and PM Remote Software (free download)



Speed Range: 5 to 999,990 RPM (single pulse per revolution), 0.5 to 999,990 RPM (10 pulses per revolution). Speeds below 5 RPM are possible with multiple pulses per revolution
Input Frequency Range: 0.083 Hz to 80 kHz
Totalizer/Counter Display Range: 0.001 to 99,999 (Only top 5 digits are shown for 100,000-999,990) Max # of counts = 16,777,216 even with 0.001 scale
Input Configuration: Universal Inputs: 1 to 9,999 pulses per revolution, front panel push button programmable TTL input and 1.1V to 50vac signals, Opt: -1 to -50Vdc
Accuracy: +/-0.001% of reading or +/-1 displayed resolution (Standard Gate), +/-0.06% of reading or +/-1 displayed resolution (Fast Gate).
Resolution: Up to 0.001 RPM, 10 RPM (100,000 to 999,990 RPM).
Display: 5 digit, 0.56" (14 mm) high red LED.
Display Update: Menu Selectable between: 0.5 second above 120 RPM, 1 second above 60 RPM and 1.5 seconds above 40 RPM.
Max Measurement Rate: Up to 100 times per second (Standard Gate) or up to 1000 (Fast Gate) dependent on input frequency. Input must be measurement rate.
Scaling: Programmable scaling: 0.0001 to 9999.9 (front panel push button programmable).
Decimal Point: User Selectable (0-3) decimal places max (front panel push button programmable).
Memory: Maximum, minimum and last reading recall from front panel push buttons.
Dimensions: 1/8 DIN by 4.5" (114 mm) deep. Panel cutout: 3.58" x 1.74" (91 x 44mm)
Input Power: Standard: 100 - 240 Vac +/-10%, 50/60 Hz, Optional: 12 or 24 Vdc +/-20%, Isolated, 8VA
Inputs: Universal input for optical, proximity, two wire or three wire magnetic, infrared or laser sensors. TTL input or 3.3 Vac to 50 Vac input. Standard input is 1 pulse per revolution.
Sensor Excitation: 5Vdc or optional 12Vdc or 24Vdc to sensor.
Recommended Sensors:


High Temp: ROS-HT-W-25

Proximity - P5-11, PS-12

Magnetic - M-190W or MT-190W

Infrared - IRS-W

Laser - ROLS-W, RLS-WSLS-115/230, CSLS

Inductive - GE200-HP Gas Engine (requires amplifier)
Pulse Repeater Output: Standard, 0 to 5 V TTL compatible. One pulse out for each pulse in. Menu selectable polarity.
Communications: Bi-directional RS232C, USB or Ethernet interface.
Analog Output: (Optional) Voltage (AO): 0 to 5 Vdc, 5mA max load (isolated or non-isolated) or Current (IO): 4 to 20mA, 500 ohm,¦ max load. (isolated or non-isolated), 1 to 5Vdc possible using 250 ohm resistor) 16 bit resolution. Front panel push button programmable for full scale and offset RPM ranges.
Pulse Output: (Optional) Repeater Pulse Output: TTL pulse switching between +5V and ground.
Alarm Capability: Two alarm set points: High or Low alarm limits, Latching or Non-Latching, Front panel push button programmable Hysteresis, dead band and low limit lockout are programmable, Relays can be set as fail-safe. Alarms can be reset Manually or Automatically. Remote reset via auxiliary input.
Alarm Outputs: Two Form C relay contacts, rated 1A at 115Vac or 230Vac
Remote Programming: Unit can be remotely programmed using optional communications interface and PM Remote Software. If no communications are ordered unit can still be programmed with optional USB programming cable.
Environmental: Indoor use only, Installation category II per IEC 664 Temperature: -10 degree C to 50 degree C operating per IEC 61010-1 Humidity: Maximum relative humidity 80% for temperatures up to 31 degree C, decreasing linearly to 50% relative humidity at 40 degree C.
Electrical Safety: Meets EN61010-1:2001, EC low voltage directive 72/23/EEC and 89/336/EEC



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