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ACT-1B Panel Tachometer - Monarch Instrument

ACT-1B Panel Tachometer


Regular price $249.00 Sale

The ACT-1B Panel Tachometer is compatible with all Monarch speed sensors with tinned wire "-W" connections. It can be factory configured to meet your specifications or user configured on site with the optional USB Programming Cable. The USB Programming Cable and free downloadable PM Remote Software also allow real time display and recording of data on a local PC. 

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Extended Warranties are Available


All models - Universal Input, non-contact operation from optical, infrared, laser, proximity, and magnetic sensors or direct TTL and 3.3 to 50 Vac signals

ACT-1B Panel Tachometer

  • Economically priced
  • 1/8 DIN sized
  • 5 Digit LED display
  • 5 to 99,999 RPM range
  • Universal sensor inputs
  • Compatible with most speed sensors
  • User configurable*
  • View real-time data on PC*
  • Store data in Excel File in real-time*
  • Universal A/C power 100 to 240 Vac, 50/60Hz or optional DC input power
  • Optional 4-20mA or 0-5Vdc scalable output

*Requires optional USB programming cable and free downloadable PM Remote Software



Speed Range: 5 to 99,999 RPM
Input Frequency Range:
Input Configuration:
Accuracy: +/-1 RPM or 0.005% of reading
Resolution: 1 RPM
Display: 5 digit, 0.56" (14 mm) high red LED.
Display Update: Twice per second above 120 RPM. Programmable with PM Remote Software and USB programming cable.
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 +/-10%, Isolated, 6VA.
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:

LED - ROS-WROS-HT-W-25, Proximity - P5-11 Magnetic -  M-190W or MT-190W Infrared - IRS-W Laser - ROLS-W, RLS-W,  SLS-115/230, CSLS  Inductive - Gas Engine GE-200 (with amplifier)

Pulse Repeater Output: (Optional) 0 to 5 V TTL pulse, non-inverting, one pulse out for each pulse in. Positive or negative out. Programmable using PM Remote Software and USB programming cable.
Analog Output: (Optional) VOLTAGE (AO): 0 to 5 Vdc out, 5 mA 16 bit resolution. Full scale RPM settings as specified when ordered or programmable using PM Remote Software and USB programming cable. or CURRENT (IO): 4 to 20 mA out, 16 bit resolution 12Vdc compliance voltage. Full scale RPM settings as specified when ordered or programmable using PM Remote Software and optional USB programming cable.
Remote Programming: Unit can be remotely programmed using optional communications interface cable and PM Remote Software (free download).
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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