SCHUNK GFT-X 270 User manual

Operating Manual
Hardware/Software Version 1.8/1.5
Date: December 2012
H.-D. SCHUNK GMBH & CO. SPANNTECHNIK KG
Lothringer Straße 23, D-88512 Mengen
Tel. [phone], Fax [phone]
Manufactured exclusively by
MESA Systemtechnik GmbH D-78467 Konstanz

Gripping Force Tester GFT®-X 270 Rev. 1.8/1.5 12/2012 page 2
H.-D. SCHUNK GMBH & CO. SPANNTECHNIK KG Lothringer Straße 23 D-88512 Mengen
Tel. [phone] Fax [phone] www.schunk.de
Congratulations on your new Gripping Force Tester GFT®-X 270! You have made an excellent
choice in buying this innovative technology which offers a variety of advantages in its use. In
order to avoid handling errors you should take a few minutes and read these operating manual
carefully.
When you have read these manual you should keep them safely at a place where they can be
easily accessed so you can refer to them again at any time. Keep your Gripping Force Tester
GFT®-X 270 in the transport case where it has optimum protection. When the device is
dispatched for maintenance or repair, it must also be sent in the transport case so that the
sensitive parts are protected in an optimum way during transportation.
The information and data contained in these operating manual may be modified without prior
notice. No part of this documentation may be reproduced or transmitted for any purpose
whatsoever, regardless of the mode or the means, electronically or mechanically, without the
prior permission in writing of MESA Systemtechnik GmbH.
In order to protect the unit against fire, electric shock or potential destruction of the electronic
components, it must never be exposed to rain or extreme humidity. Direct sun or heat are to be
avoided as well.
Please do not try to open the hand-held unit or the measuring device. There are no parts inside
which you could maintain.
All data in this publication have been compiled and checked with utmost diligence, nevertheless
errors and mistakes cannot be totally excluded.
All modifications, in particular those relating to technological improvements, are reserved.
©2012 MESA Systemtechnik GmbH Konstanz All rights reserved.

Gripping Force Tester GFT®-X 270 Rev. 1.8/1.5 12/2012 page 3
H.-D. SCHUNK GMBH & CO. SPANNTECHNIK KG Lothringer Straße 23 D-88512 Mengen
Tel. [phone] Fax [phone] www.schunk.de
Table of Contents
1Introduction 5
2Safety information 5
2.1 Introduction 5
2.2 Safety information pictograms 5
3System requirements 5
4Introduction 6
4.1 Packing list 6
5Overview 7
6Technical Data 8
6.1 GFT®-X Handheld Unit 8
6.2 Measuring Heads for collets 8
6.3 Measuring Heads for jaw chucks 9
6.4 Mains / Battery operation 9
7Handheld GFT®-X 10
7.1 Overview 10
7.2 Keyboard GFT®-X Handheld Unit 10
7.3 Status Line 11
7.4 LED indicator 12
7.5 Speed Buttons 12
7.6 Menu GFT®-X Hand Held - outline 13
7.6.1 Menu-Overview 14
7.6.2 Measuring 15
7.6.2.1 Measuring Head Recalibration 15
7.6.2.2 Recharge Measuring Head 16
7.6.3 Define new data collection 16
7.6.4 Settings 17
7.6.5 Menu Measuring Head 18
7.6.6 Menu collet chuck 19
7.6.7 Select Language 19
8Measuring Head 20
8.1 Measuring Head M1 and M2 for collets 20
8.2 Measuring Head M3 and M4 for jaw chuck 21
8.2.1 Measuring Head Extension Cylinder for M3 und M4 23
8.2.2 Mounting M3 und M4 Measuring Head 23
8.3 Measuring procedere 24
8.3.1 Static Measuring 24
8.3.2 Dynamic Measuring 24

Gripping Force Tester GFT®-X 270 Rev. 1.8/1.5 12/2012 page 4
H.-D. SCHUNK GMBH & CO. SPANNTECHNIK KG Lothringer Straße 23 D-88512 Mengen
Tel. [phone] Fax [phone] www.schunk.de
9Calibration, Recalibration 25
10 Maintenance, Service 25
11 Measured data display / storage on PC 26
11.1 Installing ChuckExplorer 26
11.2 Using the software 28
11.2.1 Measurement 30
11.2.2 Measurement preparations 30
11.2.3 Manual measuring 31
11.2.4 Automatic measuring 31
11.3 Download data from GFT®-X Handheld Unit 32
11.4 Loading and saving files 32
12 Software update 33
12.1 Problems with the Update of the GFT-X Handheld Unit cause / corrective 35
13 Trouble shooting / FAQ´s 36
13.1 Problems at GFT®-X Handheld Unit cause / corrective 36
13.2 Problems with Chuck Explorer – cause / corrective 36
14 How to change the power plug at mains adapter 38
15 Changing the battery of the Handheld Unit 39
16 Accessories / spare parts list 40

Gripping Force Tester GFT®-X 270 Rev. 1.8/1.5 12/2012 page 5
H.-D. SCHUNK GMBH & CO. SPANNTECHNIK KG Lothringer Straße 23 D-88512 Mengen
Tel. [phone] Fax [phone] www.schunk.de
1 Introduction
This manual contains important information about connection and safety operation of the
Gripping Force Testers GFT®-X270. Please read the safety instruction carefully.
2 Safety information
2.1 Introduction
The Gripping Force Tester GFT®-X 270 is constructed according to DIN EN 61010-1; VDE
0411-1:2009-06. At the upper front face the Handheld Unit contains an USB slave connector for
data communication with a Windows®based computer and for power supply / recharging. The
Power Supply Plug operates in the range of 100V~-240V~ alternating current and complies with
EN60950-1 and UL60950-1.
2.2 Safety information pictograms
Helpfull Information / Hints
Pictogram advices helpfull informations and hints.
Danger!
Please read observantly, non-compliance may result in risk of severe damage to
your health.
Warning!
Non-compliance may result in risk of damage at the GFT-X.
3 System requirements
Operating Systems
•Windows 2000
•Windows XP
•Windows Server 2003
•Windows Vista
•Windows 7
Recommended Hardware
•233 MHz processor (Recommended: pentium 500 MHz or newer processor)
•64 MB RAM (Recommended: 128 MB RAM or more)
•20 MB of hard drive space

Gripping Force Tester GFT®-X 270 Rev. 1.8/1.5 12/2012 page 6
H.-D. SCHUNK GMBH & CO. SPANNTECHNIK KG Lothringer Straße 23 D-88512 Mengen
Tel. [phone] Fax [phone] www.schunk.de
4 Introduction
The Gripping Force Tester GFT®-X 270 allows the measurement of tension when the chuck or
collet is in either static or dynamic mode.
Using a complex array of strain gauges in the Measuring Head, the mechanical forces are
converted into an electrical signal and amplified by the integrated electronics. The amplified
signals are transmitted from the Measuring Head with an integrated UHF transmitter (433MHz)
to the Handheld Unit to be displayed and processed.
On the display the current clamping force and, in dynamic mode, the accompanying number of
revolutions of the chuck are indicated.
The Handheld Unit is equipped with a high resolution TFT display which shows all important
menu items as icons. These icons, which are self-evidend, and a transparent command
structure allows easy operation also for occasional users.
All items are designated for use in severe workshops, the Handheld Unit is in addition equipped
with a silicon protector and offers therefore utmost protection against shocks and drop down.
4.1 Packing list
When you open the case, please make sure that all parts and components are included in the
Gripping Force Testers GFT®-X 270 M3 / M4 package:
;Handheld Unit GFT®-X 270 with Protector
;Power Supply Plug with USB master-connector
;Adapter for North America, United Kingdom, Australia and Europe
;GFT®-X ChuckExplorer for Windows-XP / Windows 7
(CD contains operating software and operating manual)
;USB- connecting cable from Handheld Unit to PC/Laptop, approximately 1m length
;Measuring Head for jaw chucks with rotating electronics and 4 each of Extension
Cylinder for jaw diameter ø72mm
;3 each Extension Cylinders for jaw diameter ≥88 und ≥108mm
;Torx-key T15 inclusive spare screws
;Stand with magnetic mounting for rpm measurement
;Measuring Head - charging cable, 2 pin, approximately 1m length
;Loading Bracket for Measuring Head
The GFT®-X Upgrade Kit includes following parts:
;Handheld Unit GFT®-X with Protector
;Power Supply Plug with USB master-connector
;Adapter for North America, United Kingdom, Australia and Europe
;GFT®-X ChuckExplorer for Windows-XP / Windows 7
(CD contains operating software and operating manual)
;USB-connection cable from Handheld Unit to PC/Laptop, approximately 1m length
GFT®-X Upgrade Kit can only be used for Measuring Heads showing a serial
number of >= 0089-3.
For other Measuring Heads packing list can vary.

Gripping Force Tester GFT®-X 270 Rev. 1.8/1.5 12/2012 page 7
H.-D. SCHUNK GMBH & CO. SPANNTECHNIK KG Lothringer Straße 23 D-88512 Mengen
Tel. [phone] Fax [phone] www.schunk.de
5 Overview
Figure: GFT®-X measuring set up
A fundamental distinction is made between stationary and dynamic mode:
Static operation
Measuring Head to be clamped, magnetic mounting for rpm measurement is not
needed
Dynamic operation
Measuring Head to be clamped, the stand for rpm measuring is fastened to the
support of the machine. Now the support must be positioned in such a way that the
magnetic bar ends besides the black cover of the Measuring Head (see chapter
8.3.2)

Gripping Force Tester GFT®-X 270 Rev. 1.8/1.5 12/2012 page 8
H.-D. SCHUNK GMBH & CO. SPANNTECHNIK KG Lothringer Straße 23 D-88512 Mengen
Tel. [phone] Fax [phone] www.schunk.de
6 Technical Data
6.1 GFT®-X Handheld Unit
Power supply via USB, 5V DC
Measurement range / gripping force F
indication in kN or lbf, selectable by user
bargraph in % full scale, wheras value of
measurement range is indicated as follows:
0.....80% green,
80.…95% yellow,
95...100% red.
Measurement range / speed (rpm) indication in 1/min (can be switched off)
Dimensions 220x100x50mm
Weight 460g
Operating temperature 0...40°C
Protection class IP54
Interface PC / Laptop USB 2.0
Data cable/charging cable Handheld Unit approx. 1,5m length
Charging cable for Measuring Heads approx. 1m length including mating connector
Receiving frequency 433,92 MHz
Distance Handheld Unit / Measuring Head see chapter 6.2 / 6.3
6.2 Measuring Heads for collets
Measuring Head M1 Measuring Head M2
Power supply internal energy storage
Energy storage capacity ca. 1,5h@50% duty cycle
Measurement range/gripping
force F 0...75kN 0...120kN
Measurement range/
speed of rotation (rpm) >approx. 200*)to <10.000 rpm >approx. 200*)to <8.000 rpm
Accuracy (F/rpm) <5% / <1% fsr
Clamping diameter 18mm 42mm
Number of jaws 3 3
Dimensions ø18/57x56mm ø42/57x63mm
Weight 400g 700g
Operating temperature 0...40°C
Protection class IP65
Transmitting frequency 433,92MHz
Charge time <3 minutes
Distance Handheld Unit/
Measuring Head >1m and <4m straight line (value may vary depending on the ambient conditions)
*) the lower value can start from 60 rpm by reducing the gap between magnet and Measuring
Head from 3mm to about 2mm

Gripping Force Tester GFT®-X 270 Rev. 1.8/1.5 12/2012 page 9
H.-D. SCHUNK GMBH & CO. SPANNTECHNIK KG Lothringer Straße 23 D-88512 Mengen
Tel. [phone] Fax [phone] www.schunk.de
6.3 Measuring Heads for jaw chucks
Measuring Head M3 Measuring Head M4
Power supply by internal energy storage
Energy storage capacity approx. 1,5h@50% d.c. approx. 1,5h@50% d.c.
Measurement range/gripping
force F 0…180kN (2 jaws) 0…270kN (3 jaws) 0…30kN (2 jaws) 0…45kN (3 jaws)
Measurement range/speed (rpm) >ca. 200*)bis <6.000 rpm
Accuracy (F/rpm) <3% / <1% fsr <1,5% / <1% fsr
Clamping diameter 72…108mm
Number of jaws 2 or 3, user adjustable
Dimensions ø68/57x63mm
Weight 700g without extentions
Operating temperature 0…40°C
Protection class IP65
Transmitting frequency 433,92MHz
Charge time <3 minutes
Distance Handheld Unit/
Measuring Head >1m and <4m straight line (value may vary depending on the ambient conditions)
*) the lower value can start from 60 rpm by reducing the gap between magnet and Measuring
Head from 3mm to about 2mm
6.4 Mains / Battery operation
The GFT®-X Handheld Unit is supplied by 5VDC (500mA) via a Power Supply Plug with an input
voltage range from 100VAC to 240VAC. Different interchangeable blade assemblies for North
America, United Kingdom, Australia and Europe are included.
Please see chapter 13 for a guidance to exchange the interchangeable blade assemblies.
Furthermore GFT-X is equipped with a powerful battery (Li-Ion). A one time charge allows an
operation up to 5 hours. During this time frame, a Measuring Head can be loaded up to 4 times
out of the Handheld Unit battery.
A correct indication of the charge condition is only possible until the battery is
completely full charged and discharged first. It's recommended to charge the
handheld unit first completely and then use it until the power is turned off
automatically.
Charging condition of the battery is indicated on battery symbol in Status Line, left side (see
chapter 7.3).
Battery could, if not in use and not charged for several months, discharge itself.
If operating time drops down to less than 2 hours it is recommended to replace the
battery (see chapter 15)

Gripping Force Tester GFT®-X 270 Rev. 1.8/1.5 12/2012 page 10
H.-D. SCHUNK GMBH & CO. SPANNTECHNIK KG Lothringer Straße 23 D-88512 Mengen
Tel. [phone] Fax [phone] www.schunk.de
7 Handheld GFT®-X
7.1 Overview
Measuring Head USB interface/
Power Jack Power Plug
Status Line
Set Menu
Command Line
Display Line for Speed Buttons / Softkeys
Speed Buttons
LED indicator
Key Pad
Powerswitch
7.2 Keyboard GFT®-X Handheld Unit
To switch on and off the Handheld Unit press for about 2 seconds. First it appears the
Welcome Logo, at the same time blue LED twinkles. The Set Menu appears after 2 seconds
automatically.
Speed Button – With this button the above indicated menu
item will be chosen. These buttons are freely configurable
(see chapter 7.4)
Moves icon or line above Moves icon or line down
Moves icon or character / number to the right
Moves icon or character / number to the left
Delete deletes last input (character / number)
Menu Back to Main Menu
ESC Back one level above
OK Confirm selection