Metro DataVac M1 User manual

M1 – M3 Display units
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M
M1 1 / / M M3 3
D
Di is sp pl la ay y u un ni it ts s f fo or r 1 1 o or r 2 2 a ai ir r g ga ag ge es s
USER’S MANUAL
Firmware 3.00
 [phone]
Metro Fax [phone]
80 impasse des chapotines web www.metro-fr.com
ZAE Chez Merlin
F-74420 St-André de Boëge
France E-mail [e-mail]

M1 – M3 Display units
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1. TABLE OF CONTENTS
1.TABLE OF CONTENTS ___________________________________________ 2
2.FOREWORDS __________________________________________________ 4
3.INTRODUCTION ________________________________________________ 6
3.1.PRODUCT PRESENTATION ........................................................................ 6
3.2.VERSIONS .................................................................................................... 6
3.3.CHARACTERISTICS ..................................................................................... 7
3.3.1.MAIN TECHNICAL CHARACTERISTICS ............................................... 7
3.3.2.DIMENSION AND INSTALLATION ........................................................ 7
3.3.3.CONTAINS OF THE PACKAGING ....................................................... 10
3.3.4.ACCESSORIES .................................................................................... 11
3.3.5.OPTIONS / CABLES ............................................................................ 12
3.3.6.CONNECTORS .................................................................................... 15
3.3.7.STANDARD CABLING – RESTRICTOR CHOICE ............................... 15
3.3.8.CABLING WITH BY-PASS NOZZLE (INTEGRATED RESTRICTOR) .. 18
3.3.9.THE RS232 COMMUNICATION PORT ................................................ 19
3.3.10.MINI-USB CONNECTOR .................................................................... 20
3.3.11.THE 24VDC CONNECTOR ................................................................ 20
3.3.12.THE USB STICK CONNECTOR ......................................................... 21
3.3.12.THE FOOTSWITCH CONNECTOR ................................................... 21
4.AIR PREPARATION UNIT – AIR PIPES _____________________________ 23
4.1.AIR PREPARATION UNIT ........................................................................... 23
4.2.AIR PIPES ................................................................................................... 23
5.QUICK START _________________________________________________ 25
6.GRAPHICAL INTERFACE ________________________________________ 26
6.1.2 MAIN PARTS ............................................................................................ 26
6.2.GENERALITIES ........................................................................................... 27
6.3.CONFIGURATION WINDOWS .................................................................... 29
6.4.VIRTUAL KEYBOARD ................................................................................. 30
7.CONFIGURATION OF THE DEVICE AND THE MEASURE ______________ 31
7.1.DEFINITION ................................................................................................. 32
7.1.1.PART 1 ................................................................................................. 33
7.1.2.PART 2 ................................................................................................. 36
7.1.3.PART 3 - CLASS .................................................................................. 37
7.1.4.PART 3 CONTROL LIMIT ..................................................................... 39
7.2.DISPLAY ...................................................................................................... 40
7.3.SETUP ......................................................................................................... 42
7.3.1.CALIBRATION OF THE AIR GAGE ..................................................... 43
7.3.1.1.CALIBRATION IN 2 POINTS ............................................................. 43
7.3.1.2.CALIBRATION IN 3 POINTS ............................................................. 46
7.3.1.3.ADVANCED MODE ........................................................................... 46
7.3.2.M-BUS MODULES ............................................................................... 48
7.4.CONFIGURATION ....................................................................................... 54
7.5.LOCK ........................................................................................................... 57
7.6.MEASURE ................................................................................................... 59
8.MEASURING SCREEN __________________________________________ 60
8.1.LATERAL BUTTON FUNCTIONS ............................................................... 60

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8.2.CHOICE OF THE NEEDLE INDICATOR STYLE ......................................... 63
8.3.TEMPORARY DYNAMIC MODE ................................................................. 64
8.4.DISPLAY MODE WITHOUT TOLERANCE .................................................. 65
9.USB COMMUNICATION _________________________________________ 66
10.RS232 COMMUNICATION _______________________________________ 68
10.1.COMMANDS .............................................................................................. 68
10.1.1.GENERALITIES .................................................................................. 68
10.1.2.COMMAND LIST ................................................................................ 69
10.1.2.1.WINDOW PART .............................................................................. 69
10.1.2.1.WINDOW DISPLAY ......................................................................... 70
10.1.2.2.WINDOW CONFIGURATION .......................................................... 70
10.1.2.3.WINDOW « LOCK » ........................................................................ 71
10.1.2.4.MEASURING SCREEN ................................................................... 72
11.DATA EXPORT ON USB KEYS ____________________________________ 73
11.1.STANDARD MODE : ................................................................................. 73
11.2.ADVANCED MODE : ................................................................................. 74
12.CONFIGURATION OF THE UNIT WITH QR CODES ___________________ 75
12.1.CALIBRATION COMMANDS: .................................................................... 75
12.2.ADVANCED CONFIGURATION ................................................................ 76
12.3.EXAMPLE OF QR CODE CONFIGURATION ........................................... 76
13.MODBUS RTU Protocol __________________________________________ 78
14.OPTIONNAL I/O MODULE________________________________________ 81
14.1.MB-IO MODULE ........................................................................................ 81
14.2.MB-RL MODULE ....................................................................................... 84
12.3.MB-TP MODULE – FOR TEMPERATURE COMPENSATION .................. 88
15.FACTORY RESET ______________________________________________ 92
16.FIRMWARE UPDATE ___________________________________________ 93

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2. FOREWORDS
ONE YEAR LIMITED GUARANTEE
MANUFACTURER'S RESPONSIBILITY
SPARE PARTS AND LABOUR.
The manufacturer commits himself to pay for repair or replacement costs (labour
costs included) during a period of one year as from the date the guarantee came into
force. The spare parts can be new or renovated and are guaranteed until the end of
the initial guarantee period.
FIRST END-USER COVERAGE.
This guarantee applies only to the first end-user of the product and is not assignable
to any other subsequent purchaser or user.
RESTRICTIONS.
Any accessory or expansion item not included in the original factory packaging is not
guaranteed.
The present guarantee does not cover: installation or repair costs, damages resulting
from circumstances beyond the manufacturer's control like damages following acts of
God, misuse, or careless mistake from the user, damages during the transport or due
to a wrong installation, use or application, such as any material damage caused by
the use of non supplied products, components or accessories. It also does not cover
products modified without any written approval from the manufacturer, including
electrical or mechanical modification, removal of serial numbers or of the
manufacturer's trademarks or of any other identification.
THE SOLE RECOURSE UNDER THIS GUARANTEE SHALL BE THE REPAIR OR
THE REPLACEMENT OF DEFECTIVE PARTS AS INDICATED ABOVE. UNDER
NO CIRCUMSTANCES THE MANUFACTURER CAN BE HELD LIABLE FOR
INDIRECT OR SPECIAL DAMAGES OR FOR DAMAGES RESULTING FROM THE
USE OF THE PRODUCT, INCLUDING ANY LOSS OF DATA, BUSINESS OR
PROFIT, AND WHETHER THESE DAMAGES CAN BE FORESEEN OR NOT AND
WHETER THEY ARE BASED ON A GUARANTEE VIOLATION OR NOT.
THE PRESENT GUARANTEE REPLACES ANY OTHER EXPRESSED OR IMPLIED
GUARANTEE INCLUDING BUT NOT LIMITED TO ANY GUARANTEE OF
MARKETING OR ADEQUACY FOR A PARTICULAR USE; AND ALL THESE
GUARANTEES ARE EXPRESSLY EXCLUDED AND CANCELLED.
WARNING
The information contained in this booklet can be changed without notice.
The manufacturer makes no warranty whatsoever with respect to the warranties of
commercial quality of this product or its suitability to a particular use.

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The manufacturer is not responsible for mistakes that could be found in this handbook
and also for direct or indirect damage resulting from the equipment, its performances
and the use of this product.
It is the responsibility of the user to verify the calibration of the display before
measuring and it is advised to check periodically the calibration and
measurement performance.
CLEANING
Use a soft cotton cloth slightly soaked with an ethyl alcohol based product.
DO NOT USE the following products: acetone, benzene, toluene and halogens
hydrocarbons.

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3. INTRODUCTION
3.1. PRODUCT PRESENTATION
The M1 and M3 display units allow making dimensional control using 1 or 2 air gages.
Depending on the version it is possible to make simple measurement (with one air
gage), or display 2 characteristics on the screen and can make static measurement or
dynamic (Max, Min, Max-Min…)
The M1-M3 can be connected to a PC thanks to its RS232 or USB connection.
A footswitch can be connected in order to transfer measurements.
The M1 / M3 displays for air gages requires 2 (eventually 3) masters for calibration.
3.2. VERSIONS
REF Description
11040 Displa
y
unit M1 for 1 air
g
a
g
e
13040 Display unit M3 for 2 air gages or 1 air
g
a
g
e with 2 measurin
g
levels

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3.3. CHARACTERISTICS
3.3.1. Main technical characteristics
 TFT colour touch screen display 4,3’’, resolution 480x272.
 Static or dynamic measurements (Max, Min, Max-Min, Average, Median)
 Analogue or digital display
 1 or 2 measurement configurations (2 characteristics)
 Possibility to select automatically the characteristic by using the air gage or by
touching the screen.
 Relative or absolute display
 Display resolution (up to 0.1µm)
 Metric (mm or µm) or Imperial (Inches) measurement
 RS232 port for communication with a PC
 USB port for communication and/or power supply
 USB Stick for data saving on a CSV file
 Optional connection of M-Bus modules
 Measurement transfer by pressing a key, footswitch input or retro-command on
the RS232 port.
 Operating temperature : : +15°C to +30°C
 Power supply from 85 to 265 VAC by using the supplied main transformer (or by
connecting it directly on your PC USB port, or through the 24 VDC screw terminal.
 Relative humidity : maximum 80%
 Dimensions : width 130 mm, height 111 mm, depth 105 mm
 Mass : 600 grams (700g with the power supply)
3.3.2. Dimension and installation
The M3 is fitted with 4 thread M5 allowing to attach it. To access to these threads, it is
necessary to remove the 4 antiskid plastic parts.

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It is also possible to panel mount the display, with the accessory ref ACS-AFF-001.
Be careful not to use longer screw than M4*16.
Pneumatic connections (see also chap.4) :
Remove the antiskid
parts to attach it on the
table or on a vertical
panel

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3.3.3. Contains of the packaging
The M1/3 package includes :
- 1 M1/3 display mounted on an orientable stand
- 1 USB cable, (length =1.8m) for power supply and/or data transfer
- 1 USB main adaptor for the display power supply. The M3 can also be powered by a
computer when connected to it with the USB.
- 1 Mini-CD containing the user manual.

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3.3.4. Accessories
Reference Description Picture
ACS-PNE-003 Air preparation unit :
It is mandatory to use a
precision regulation system,
otherwise the measurements
will not be stable.
We can supply the adapted
air preparation unit from SMC,
including stop valve, filter and
regulator + precision
regulator.
The precision regulator must
be adjusted at 3 BARS
(0.3MPa)
ACS-PNE-008 For M3 displays.
It allows to divide the 8mm
tube at the output of the air
preparation unit into 2 tubes
of 6 mm adapted for the
connection on the M3 input.
ACS-PNE-006 Soft polyurethane tubes
6*4mm :
The M1 / M3 are fitted with 2
connectors for air tube with
6mm external diameter and
4mm internal diameter.
We advise to use soft
polyurethane tubes from
SMC, because their flexibility
prevent the display to knock
over due to the pressure of
the tubes on the table.
ACS-PNE-007 Soft polyurethane tubes
8*5mm :
The air preparation unit is
fitted with a connexion for
8mm tubes (external
diameter)

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3.3.5. Options / cables
Reference Description Picture
18020 Footswitch :
This footswitch with a robust construction can be
configured in different ways: preset, measurement
transmission, start dynamic measurement etc...
18022 Handswitch
This footswitch with a robust construction can be
configured in different ways: preset, measurement
transmission, start dynamic measurement etc...
ACS-AFF-
001
Accessory for panel mounting.
To be installed instead of the stand.
MB-IO This M-Bus module is fitted with 8 input/outputs
isolated with optocouplers allowing to get additional
functionalities, for example: output for Go/noGo, input
for preset or start dynamic measurement... The M-Bus
modules are mounted on an aluminum profile allowing
to mount them on a standard DIN rail.
Up to 4 modules can be mounted
MB-RL The optional MB-RL module is fitted with 2
independent relays min and max, free of potential that
indicate the position of the measure according to the
part tolerances. The module is also fitted with 6 inputs
allowing
To remote control the display.
This MB-RL module is wired exactly like the #24136
optional board for Monocote displays. It allows then to
replace a Monocote by a M3 without changing the
machine wiring.

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81213-1.5 M-Bus câble for M3 :
This cable allows to connect the compatible M-Bus
modules on a M3 display unit. Length 1.5m
45160 RS232 cable
This cable allows to connect a M1//M3 display to a
computer or a PLC.
18193 This cable allows to connect a M1 /M3 display to a
Multiplexer Mux from Metro, and to the DP1 printer
from Mitutoyo

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45173 RS232/USB cable converter :
This cable allows a M1/M3 display to
communicate with a computer. It creates a virtual
COM port on the computer. It is delivered with a
driver on a CD.
ACS-
AFF-
002
+
45179
Tickets printer
Allows to print the displayed value of the M1/M3
Requires cable ref 45179 to be connected to the
M1 / M3
ACS-
AFF-
003
QR code reader for Metro displays.
2 main functions :
- Allow to send a configuration on the display
(part definition, tolerance, display type,
calibration of the air gage, etc…)
- Send a Manufacturing order number. The
export file will take the name of the number
entered.
ACS-
PNE-
012
Air cut-off footswitch
Allows to simply cut off the air supply, for
stopping the air flow when the air gage is not
used.

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3.3.6. Connectors
3.3.7. Standard cabling – restrictor choice
The M1 or M3 are delivered with 1 or 2 restrictors of 0.5mm on the air input + 1 or 2
0.7mm restrictors as spare parts. The value of the restrictor is indicated as below:
7 =0.7mm
5=0.5mm
On/Off switch
(press 2s. for
shutting down)
2 input for AIR at
3BAR (0.2Mpa) (air
filtered at 1µm and
regulated at
0.1BAR /
0.01MPA). NEVER
OVERPASS
4BAR/0.4MPA. It is
very recommended
to use the FRL (Air
preparation set)
from Metro ref
ACS-PNE-003.
See details on the
chap. 3.3.4
RS232
connector for
connection to a
PC
Multi-function
footswitch
connecto
r
Mini-USB
connector for
power supply
and
measurement
transfer to a PC
To connect m-bus
modules
(optional)
24 VDC power supply. If you choose
this connector to power the display,
the ON-OFF switch will be
deactivated.
Output to the Air
gage
USB Stick connector for data saving
on a CSV file, or for configuration
with QR codes
Value of the
restrictor
7=0.7mm
O ring
M5 thread
Restrictor
Restrictor

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The following table shows some frequent cases to define which restrictor will be the
most adapted to your application. In order to get the best linearity, the most important
is to get 2.7 BAR at the nominal (pressure indicated on the Setup menu, it is a relative
pressure from the atmospheric pressure, while the 3 BAR at the output of the
regulator is absolute)
If you order a turnkey solution at Metro, we will deliver the display with the adapted
restrictor, or with an integrated restrictor (see chap 3.3.8). But if you want to use the
M1 / M3 display together with your existing air gage, you will have to use the adapted
restrictor by your own.
It is advised to contact Metro or one of its distributors for advices or
confirmation around this subject.
Check this video for understanding the influence of the restrictor on the
linearity :
link to the video Or scan the QR code :
Nozzlediameterinmm numberofnozzles totalflowsurfaceinmm² Restrictor
0,3 2 0,14 0,3
0,4 2 0,25 0,4
0,5 2 0,39 0,4
0,6 2 0,57 0,5
1 2 1,57 0,7
2,07 2 6,73 0,9
  
0,3 3 0,21 0,3
0,4 3 0,38 0,4
0,5 3 0,59 0,5
0,6 3 0,85 0,5
1 3 2,36 0,7
  
0,3 4 0,28 0,4
0,4 4 0,50 0,4
0,5 4 0,79 0,5
0,6 4 1,13 0,5
1 4 3,14 0,7
Example :

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3.3.8. Cabling with by-pass nozzle (integrated restrictor)
Some air gages are delivered with a by-pass nozzle (or integrated restrictor). It means
that the restrictor is integrated inside the air gage itself, and there is no need to install
it on the display. NO RESTRICTOR ON THE DISPLAY.
This configuration allows to have a faster the reaction time and makes the installation
easier by removing the need to choose the adapted restrictor.
If you order a turn key solution at Metro, it will generally be delivered according to this
principle.
The cabling schema is the following:
Air gage with by-pass nozzle
(integrated restrictor)
Regulation unit
ref ACS-PNE-003 (delivers
3BAR/0.3MPa pressure) Stopper ref CMP-PNE-018 Standard push-in
connector, M5 thread.
Generally, for tube
external diam 3mm (ref
CMP-PNE-014)

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3.3.9. THE RS232 COMMUNICATION PORT
The M3 is fitted with a RS232 port. It allows linking the M1/M3 to PC or an external
system. The configuration is as following
9600 bauds, 8 bits, 1 stop bit, no parity
CONNECTOR PINOUT
It is fitted with a SUBD 9 pins female connector.
Pin Signa
l
Direction Description
1 Not used
2 RX Input Reception of data
3 TX Output Transfer of data
4 IN1 Input Do not use. Onl
y
for firmware update
5 Gnd - Ground
6 Not used
7 IN2 Input Do not use. Onl
y
for firmware update
8 &9 Not used

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3.3.10. MINI-USB connector
The mini-USB connector has 2 functions
1. Power supply through a wall mounted transformer. This transformer supplies a
regulated 5V/1A DC voltage.
2. Measurement transmission. If you connect your M3 to a PC, the PC will detect
and install automatically the M3 as a standard USB keyboard with the standard
drivers of your operating system (Windows, Mac OS etc..). When you will send
the measurement, the value will be written on your PC screen where your
cursor is, in the same way as it would have been typed with a keyboard.
Message that appears when the M1/M3 has been correctly installed:
3.3.11. The 24VDC connector
It is advised to use this power supply when the M3 is panel mounted.
Using this power supply instead of the mini-USB will deactivate the ON-OFF switch.
Therefore, when the M3 is powered, it will start automatically.