MX2034 4-20 mA Proximity Transmitter

The Metrix MX2034 4-20 mA Proximity Transmitter can be ordered exactly the way you want it and can be configured in the field for a variety of applications, including speed measurements, radial vibration, and axial position. As an essential part of the family of vibration instruments from Metrix, the fully API 670-compliant eddy-current proximity measurement system was upgraded with the flexibility of digital configurability since 2018. This combination of accuracy and flexibility has proven to be a game-changer for plants of every variety. Product approx. weight: 247 g (8.7 oz)

Product Overview

The Metrix MX2034 uses standard factory pre-configured calibrations as well as custom field-generated curves that provides a linear response, meeting API 670 accuracy specifications. The MX2034 has proven to work with many manufacturers’ probes and cables. It works with a variety of probe tip diameters, extension cable lengths, or linear ranges that the technician is working with. It’s possible to monitor vibration levels, changes in rotor position, and speed with the MX2034 Proximity Transmitter. The transmitter provides a 4-20 mA output that can be used by control systems, Programmable Logic Controllers (PLC) and Supervisory Control and Data Acquisition (SCADA) Systems. These systems have been proven to be able to provide early warning of significant machine condition changes.

With a single transmitter, users can switch probe type, change system length, and alter target materials in the field. The MX2034 is capable of eliminating the cross-talk between two adjacently installed proximity probes, the dynamic output signal measured at the BNC can be configured for positive or negative polarity depending upon the application, and transient electrical spikes from outside the system can be suppressed by the transmitter. With the 4-pin connector, users of the MX2034 can send the dynamic signal output to a vibration monitoring system up to 100m away. There are many other advanced features of the MX2034 that customers can take advantage of to optimize the value of their proximity transmitter system. 

Key Features and Specifications

The Metrix MX2034 4-20 mA Proximity Transmitter boasts three different modes:

Vibration Mode

  • Full-scale vibration range: The full-scale range can be ordered or selected in the field from 3 mils pk-pk (75 µm pk-pk) to 40 mils pk-pk (1000 µm pk-pk). Engineers and technicians can select the range they need for a variety of applications.
  • Spike suppression: This feature is used infrequently but can be very useful for plants that have large electrical transients. The MX2034 samples at a very high rate, it knows when a signal is not real. You can take advantage of this feature by selecting it using our free software.
  • 4-20mA decay rate: The MX2034 Transmitter reacts very quickly to increasing vibration and reacts more slowly for decreasing vibration. This provides more stable readings to the user.

Position Mode

  • Full-scale linear range: The scale range can be selected from 40 mils (1000 µm) to 160 mils (4500 µm). A special feature of the MX2034 is that you can set 10 mils and it’s physically equal to 10 mils. That’s different from other manufacturers where you define 10 mils electrically rather than physically. It’s just a more accurate system.
  • 4-20mA direction: Changing the direction, either upscale or downscale, makes it possible to configure the normal direction of movement for your application. This is done using the free Metrix software.

Speed Mode

  • Full-scale RPM Range (500 rpm – 400,000 rpm): The speed system can be setup with a selected speed range that controls the 4-20 mA output. A wide variety of speed selections are available. For speed ranges less than 500 rpm, for example 50 rpm, a multitooth wheel must be used along with proper scaling in the control system, PLC or SCADA System.
  • Keyway Numbers: The MX2034 can use a multitooth wheel for speed detections. The number of pulses per minute are limited to 400,000. So, for a machine operating at 100,00 rpm, you can have up to 4 pulses per turn or rotation.
  • Threshold Voltage: Threshold Voltage is automatically set in the MX2034 Proximity Transmitter. It can also be manually set by the user by selecting Manual in the free configuration software. With the Manual setting of the Threshold Voltage, you will also have to set the Hysteresis band for the transmitter. This is easily done using the Metrix free software when connected to the MX2034 Transmitter.
    Hysteresis: This feature allows a control band around the Threshold Voltage to increase the accuracy of a given speed reading. The Threshold and Hysteresis values are usually set to Auto. However, in some cases, when there is a lot of noise in the signal, the Manual setting is very useful.