Metro M3 – for 1 or 2 air gauges | Innovative Measurement Technology Ltd.

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The Metro M3 is the last generation of tool for dimensional control with an air gauge : air ring, air plug gauge, air fork etc. The M3 (13040) is compatible with all the air gauge brands available making it possible to use your existing air gauge with a modern and versatile display.

Key features

Tolerance limits, Control limits (warnings)
Calibration / Preset
Different display modes
Direct or dynamic measurement (Max, Min, Max-Min, Average, Median)
Sorting by classes of size, up to 16 classes by characteristic with coloured indicator
Possibility to lock selected functions with a password
Display resolution (from 2 to 5 decimals)
M-Bus connector for the optional connection MBUS modules ( I/O modules or inductive probe etc.
Metric (µm or mm) or imperial measurements (inches)
Different languages installed (including Japanese, Chinese, Korean). New language can be installed upon request
Data export on a USB stick (.csv file)

Thanks to its user friendly interface and its general simplicity the M3 is a device that will be immediately adopted by every operator.

The 4”3 resistive touch screen display can be used with gloves.

This digital readout has several means of communication, USB and RS232 to remote control the device and/or send the measurements to an external system.

Its housing machined in a solid aluminium block offers to the M1/M3 an incomparable robustness even when used in the most severe industrial environments.

User friendly interface

Compatible with all air gauge brands

Multiple measurement display modes

Graphical interface

Measurements can be displayed with different types of barographs and needle indicators for ease of use.

USB connection

The mini-USB provides power to the M3 and allows for measurement transmission

Many functions and measurement mode can be selected through the keyboard:

1 or 2 measurement configuration (2 characteristic only on M3)
Calibration in 2 or 3 points
Resolution up to 0.01µm
Filtering function for a very high measurement stability not depending on the air gage.
Different display modes with or without tolerances: analogue (needle indicator), digital
Tolerance limits and control limits (Warnings).
Absolute or relative measurement
Direct or dynamic measurement (Min, Max, Max-Min , Average, Median)
USB communication “virtual keyboard”
USB Stick connection for data export (CSV file)
Modbus-RTU or ASCII Communication on RS232
Sorting by classes of size, up to 16 classes by characteristic, with useful coloured indicator.
Possibility to connect up to 4 optionnal I/O module with 8 optocoupled I/O (= max 32 I/O)
Possibility to connect a multi-function footswitch (measurement transfert, calibration etc…)
Alarm with temperature variation (option)
Temperature compensation (option)
Configuration possible by a QR code
Easy to use and reliable

The M3 is equipped with a mini-USB connector with 2 functions
1. Power supply via a supplied wall transformer.
2. Measurement transmission: When the M3 is connected in USB to a PC, it is detected as a keyboard with the standard drivers of your operating system (Windows, MacOS, Linux…). When you transfer measurements from the M3, they appear on your computer screen as if they had been entered on the keyboard. No need to install any specific driver or software.

Advantages of this feature:

No risk of error when entering values
Saves time
Works everywhere on all software: Excel, SAP, Word….
No need for a driver, interface software or computer knowledge: you just plug in the display and you can work

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