Posted in | Ultrasonic Sensor

mPulse® 220 kHz for Ultrasonic Non-Contact Proximity Sensing and Control

The MassaSonic® mPulse® Model M-5000/220 Sensor is a full featured, short range, wired sensor with multiple outputs. It has high accuracy and a high measurement speed.

Modern ultrasonic and microprocessor technology is used by the mPulse® Sensor  to transmit precision non-contact distance measurement for industrial process control and factory automation. The mPulse Sensor is recognized for its ability to be set up without the need for a target, flexibility in user-controlled outputs, genuinely user-friendly software, and excellent ease of operation.

The mPulse® Sensor transmits narrow beam sound pulses at a user-selected rate (or it can be externally triggered), processes return echoes, and produces several outputs dependent on the position of the target. These sensors operate from 12 to 28 V DC and provide non-contact measurement over a nominal target range of 4″ (100 mm) to 40" (1 m).

Outputs include a 0 to 20 mA or 4 to 20 mA DC analog current loop, echo status by both an Echo Status Output switch and an LED indicator, and two independent set-point switches. The outputs and parameters of the system are completely user programmable through an RS-485 data link, eliminating tampering and sealing problems related to adjustment potentiometers or push-buttons.

A few extra programmable features comprise: set-point hysteresis, analog output slope, loss-of-echo time-out, averaging of multiple target distance measurements, and sampling rate.

Massa’s extremely user-friendly software works with a PC working under Windows® 10, 8, 7, 95, 98, NT, 2000, and XP operating systems. The mPulse® Sensor uses USB/RS-485 or RS-232/RS-485 converters to connect to a PC.

The RS-485 data link permits up to 32 sensors to be on the same multi-drop communications network. For those who prefer to not use a PC, it is possible to program the sensors at the factory to the customer’s accurate specifications for true “plug and play” operation.

Other features of the mPulse® Sensor include protection from short circuits, over-voltage and reverse polarity, diagnostic and monitoring outputs, operation from -20°C to 65°C with built-in temperature compensation, and industry standard 30 mm diameter CPVC housing.

Model                                                                                               220 kHz  mPulse
Measurement Range 4" (100 mm) to 40 " (1m)
Measurement Resolution 0.01 inches (0.25mm)
Sampling Rate 0.1 Hz to 100 Hz in 0.1 Hz increments
Loss of Echo Options 0, 3.5, 4.0, 20.0 or 20.5 mA
Trigger Modes

Internal, internal with trigger outpout, external,  external with delay, manual

Target Distance Averaging

Rolling Average: up to 32 samples; or Boxcar Average: up to 1,024 samples

Housing Dimensions

30 mm diameter M-30X1.5 threaded tube, 100 mm long

Housing Material PVC
Operating Temperature -20°C to 65°C
Communication Converter

USB/RS-485 or RS-232/RS-485 with automatic send data control

Operating System Windows® 10, 8, 7, Vista, and XP SP3

Key Features

Key Features

The main features of the mPulse® Model M-5000/220 Sensor are as follows:

  • Analog and setpoint outputs
  • 4" (100 mm) to 40" (1m) range
  • Plug and play setup - no target needed
  • Software set span and zero - no pots or pushbuttons; tamperproof settings
  • Easy to use setup software - Windows® 10, 8, 7, XP SP3, and Vista.
  • Up to 32 sensors on RS-485 multi-drop loop
  • Built in Temperature/ sound speed compensation
  • Low Cost of Ownership (CoO)


The following are the applications of the mPulse® Model M-5000/220 Sensor:

  • Machine tool fluid level
  • Liquid level control
  • Paper/plastic film processing
  • Automatic filling operations
  • Roll diameter measurement
  • Mechanical positioning
  • Automatic packaging
  • Web loop monitoring

Download the DataSheet Here

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