SCHUNK IFT SST User instructions

Translation of Original Operating Manual
SCHUNK IFT SST Clamping Force Tester
Assembly and Operating Manual

Imprint
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Imprint
Copyright:
This manual is protected by copyright. The author is SCHUNK GmbH & Co. KG. All rights
reserved.
Technical changes:
We reserve the right to make alterations for the purpose of technical improvement.
Document number: 1501182
Version: 01.00|03/02/2022|en
Dear Customer,
thank you for trusting our products and our family-owned company, the leading
technology supplier of robots and production machines.
Our team is always available to answer any questions on this product and other solutions.
Ask us questions and challenge us. We will find a solution!
Best regards,
Your SCHUNK team
Customer Management
Tel. [phone]
Fax [phone]
[email protected]
Please read the operating manual in full and keep it close to the product.

Table of Contents
Table of Contents
1 General instructions................................................................................................. 5
1.1 Information about this manual ............................................................................ 5
1.1.1 Presentation of Warning Labels ...............................................................5
1.1.2 Applicable documents ..............................................................................6
1.2 Warranty .............................................................................................................. 6
1.3 Scope of delivery .................................................................................................. 6
2 Basic safety notes .................................................................................................... 7
2.1 Intended use......................................................................................................... 7
2.2 Not intended use.................................................................................................. 7
2.3 Structural changes................................................................................................ 7
2.4 Spare parts ........................................................................................................... 8
2.5 Ambient conditions and operating conditions ..................................................... 8
2.6 Personnel qualification......................................................................................... 8
2.7 Personal protective equipment............................................................................ 9
2.8 Instructions for safe operation............................................................................. 9
2.8.1 Constructional changes, attachments, or modifications ..........................9
2.9 Transport .............................................................................................................. 9
2.10 Malfunctions....................................................................................................... 10
2.11 Disposal .............................................................................................................. 10
2.12 Fundamental dangers......................................................................................... 10
2.12.1 Notes on particular risks.........................................................................10
3 Technical Data ........................................................................................................11
3.1 Tablet technical data: ......................................................................................... 11
3.2 Measuring head technical data .......................................................................... 11
4 Functional description and operation......................................................................12
4.1 Overview............................................................................................................. 12
4.2 Measuring head.................................................................................................. 12
4.2.1 General ...................................................................................................12
4.2.2 Charging process / state of charge .........................................................13
4.2.3 Changing the clamping inserts................................................................14
4.3 Tablet and APP ................................................................................................... 14
4.3.1 Functional description of the tablet .......................................................14
4.3.2 Operating the APP ..................................................................................15
4.3.3 Live screen ..............................................................................................16
4.3.4 History ....................................................................................................18
4.3.5 Images ....................................................................................................19
4.3.6 Machines and clamping devices editor ..................................................20
4.3.7 Calculation method of the clamping force .............................................20
4.3.8 Measuring procedure .............................................................................21
5 Calibration and recalibration ..................................................................................22
6 Charging adapter ....................................................................................................23
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Table of Contents
7 EU Declaration of Conformity .................................................................................25
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General instructions
1 General instructions
1.1 Information about this manual
This manual contains important information for the safe, correct
use of the product.
The manual is an integral part of the product and must be kept
accessible for personnel at all times.
Personnel must have read and understood this manual before
beginning any work. The observance of all safety notes in this
manual is the precondition for safe working. The illustrations in
this manual are intended to provide a basic understanding and
may deviate from the actual version.
Besides this manual, other documents which apply are those listed
under (1.1.2)
1.1.1 Presentation of Warning Labels
To make risks clear, the following signal words and symbols are
used for safety notes.
DANGER
Danger for persons!
Non-observance will inevitably cause irreversible injury or death.
WARNING
Dangers for persons!
Non-observance can lead to irreversible injury and even death.
CAUTION
Dangers for persons!
Non-observance can cause minor injuries.
CAUTION
Material damage!
Information about avoiding material damage.
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General instructions
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1.1.2 Applicable documents
• General terms of business *
• Catalog data sheet of the purchased product *
The documents labeled with an asterisk (*) can be downloaded
from schunk.com.
1.2 Warranty
If the product is used as intended, the warranty is valid for 24
months from the ex-works delivery date under the following
conditions:
• Observe the applicable documents, }1.1 [/5]
• Observe the ambient conditions and operating conditions
• Observance of the specified calibration intervals.
Parts touching the workpiece and wearing parts are not part of the
warranty.
1.3 Scope of delivery
1 Tablet incl. APP
1 Measuring head
2 Intermediate stops
1 Charging adapter for tablet and measuring head
2 USB charging cable
1 Torx wrench
3 Screws for intermediate stop

Basic safety notes
2 Basic safety notes
Risks to persons and property may arise from incorrect handling of
this product if these instructions are disregarded.
Report any damage and defects immediately and repair without
delay to keep the extent of the damage to a minimum and avoid
compromising the safety of the product.
Only original SCHUNK spare parts may be used!
2.1 Intended use
The product is intended for measuring clamping force on clamping
devices in a machine tool. Measurements are performed as a static
measurement (clamping force without speed of rotation).
• The product may only be used within the scope of its technical
data.
• The product is intended for industrial and industry-oriented use.
• Appropriate use of the product includes compliance with all
instructions in this manual.
2.2 Not intended use
The product is not being used as intended if, for example:
• the product is used with machines or clamping devices that are
not designed to be used with it.
• the specified technical data for use of the product are
exceeded.
• the product is used in working environments that are not
permissible.
• system changes or external influence of the tablet by the
operator.
2.3 Structural changes
Implementation of structural changes
Modifications, changes or reworking, e.g. additional threads,
holes, or safety devices, can damage the product or impair its
functionality or safety.
• Structural changes should only be made with the written
approval of SCHUNK.
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Basic safety notes
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2.4 Spare parts
Use of unauthorized spare parts
Using unauthorized spare parts can endanger personnel and
damage the product or cause it to malfunction.
• Use only original spare parts and spares authorized by SCHUNK.
2.5 Ambient conditions and operating conditions
Requirements for ambient and operating conditions
Incorrect ambient and operating conditions can make the product
unsafe, leading to the risk of serious injuries, considerable material
damage and/or a significant reduction to the product's life span.
• Make sure that the product is only used within its defined
application parameters.
• The measuring head must have reached room temperature
before measurement.
2.6 Personnel qualification
Inadequate qualification of personnel
Work on and with the product by inadequately qualified personnel
can lead to serious injuries and considerable material damage.
• Order all work to be performed only by appropriately qualified
personnel.
• Personnel must have read and understood the complete
operating manual before beginning any work on the product.
• Observe national accident prevention regulations and the
general safety notes.
The following personnel qualifications are required for the various
types of work on the product:
Specialist personnel:
Specialist personnel have the specialized training, knowledge, and
experience to perform the tasks entrusted to them, to recognize
and avoid potential dangers, and know the relevant standards and
regulations.
Instructed personnel:
Instructed persons have been instructed by the user regarding the
tasks entrusted to them and the potential dangers of
inappropriate behavior.
Manufacturer service personnel:
The manufacturer's service personnel have the specialized
training, knowledge, and experience to perform the work
entrusted to them and to recognize and avoid potential dangers.

Basic safety notes
2.7 Personal protective equipment
Use of personal protective equipment
Personal protective equipment serves to protect staff in the event
of a danger that may interfere with their health or safety at work.
• When working on and with the product, observe the
occupational health and safety regulations and wear the
required personal protective equipment.
• Observe the valid safety and accident prevention regulations.
• Wear protective gloves to guard against sharp edges and
corners or rough surfaces.
• Wear close-fitting protective clothing and place a hairnet over
long hair when dealing with moving components.
2.8 Instructions for safe operation
Working in an incorrect manner
An incorrect manner of working can make the product unsafe and
risk the danger of serious injuries and considerable material
damages.
• Avoid any manner of working that may interfere with the
function and operational safety of the product.
• Use the product as intended.
• Observe the safety notes and assembly instructions.
• Do not expose the product to any corrosive media.
• Rectify malfunctions as soon as they occur.
• Observe the calibration intervals.
• Observe the current safety, accident prevention, and
environmental protection regulations for the application field of
the product.
2.8.1 Constructional changes, attachments, or modifications
Additional threads, bore holes or attachments which are not
supplied as accessories by SCHUNK may affect safety. They may
only be applied after obtaining the prior consent of SCHUNK.
2.9 Transport
The transport is performed exclusively in the original, specially
adapted transport case.
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Basic safety notes
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2.10 Malfunctions
Behavior in case of malfunctions
• Immediately remove the product from operation and report the
malfunction to the responsible departments/persons.
• Have appropriately trained personnel rectify the malfunction.
• Do not recommission the product until the malfunction has
been rectified.
• Test the product after a malfunction to establish whether it still
functions properly and no increased risks have arisen.
2.11 Disposal
Conduct during disposal
Incorrect handling during disposal can make the product unsafe
and risks serious injuries and considerable material and
environmental harm.
• Follow local regulations on dispatching product components for
recycling or proper disposal.
• Batteries and rechargeable batteries are subject to hazardous
waste treatment and may only be disposed of by authorized
specialist companies.
2.12 Fundamental dangers
General:
• Do not reach into the open mechanism or movement area of
the product during operation.
• Never deactivate safety installations.
• Before commissioning the product, take appropriate protective
measures to secure the danger zone.
• Technical data of the machine or the clamping device must not
exceed the maximum permissible data of the measuring head.
2.12.1 Notes on particular risks
WARNING
Crushing!
•Do not reach between moving parts (measuring head and
jaw).

Technical Data
3 Technical Data
3.1 Tablet technical data:
Description Handset/tablet/APP
Display size 10"
Operating system Android
Charger connection USB type C
Operating temperature [°C] 0...40
Transmitting/receiving
frequency
[GHz] 2.4
Data exchange MicroSD; USB type C
3.2 Measuring head technical data
Description Measuring head
Voltage supply Internal energy accumulator
Energy accumulator
capacity
approx. 1.5 h @ 100% DC
Charging process < 3 minutes
Charger connection USB mini
Number of jaws* 2-jaw SCHUNK
2-jaw KONTEC / Gressel
Force measurement
range
[kN] 0...120 kN (SCHUNK)
0...60 kN (KONTEC / Gressel)
Force measurement
accuracy
< 3% fsr
Clamping range [mm] 55
Measured value
transmission rate
500 ms
Dimensions [mm] 95 x 55 x 63
Weight [g] 700
Operating temperature [°C] 0...40
Protection class IP67
Transmission frequency [GHz] 2.4
Handset/measuring head
distance
< 10 m (depending on ambient
conditions)
* For a 2-jaw SCHUNK, this corresponds to the arithmetic total for
the jaw clamping force (factor 2)
For a 2-jaw Gressel / KONTEC this corresponds to the clamping
force per jaw (factor 1)
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Functional description and operation
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4 Functional description and operation
4.1 Overview
The operating principle of the measuring head is based on several
internal strain gauges. The applied clamping force is converted
into an electrical signal and evaluated by the electronics. A
wireless data link transmits the data from the measuring head to
the tablet and visualizes the measured values in the APP.
4.2 Measuring head
4.2.1 General
The measuring head consists of the base body with an integrated
sensor system and electronic processor, as well as intermediate
stops for clamping support. The arrow on the cover and also on
the bottom of the measuring head symbolizes the measuring jaw,
which must always rest on a jaw of the clamping device to be
measured.
1 measuring jaw with indicator arrows
CAUTION
Measuring jaw always in force flow!
Otherwise the measured values are not meaningful.

Functional description and operation
4.2.2 Charging process / state of charge
A USB mini port is located in the cover of the measuring head. This
is used in conjunction with the USB mini cable supplied and the
charging adapter to charge the measuring head.
1 USB-mini measuring head charging socket
CAUTION
Danger of confusion!
Charging the tablet: USB type C
Charging the measuring head: USB mini
WARNING
Damage by liquid!
The charging socket must be dry and free of dirt during the
charging process.
The charging status is indicated by the LED integrated in the lid
and within the APP. If the charge level is less than 15%, the LED on
the measuring head flashes.
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Functional description and operation
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4.2.3 Changing the clamping inserts
The clamping inserts can be changed with the assembly key
enclosed. The clamping width is 55 mm.
1 Measuring head
2 Clamping insert
3 Fastening screw
4 Torx assembly key
4.3 Tablet and APP
WARNING
Lithium-ion battery!
The product is equipped with a lithium-ion battery.
•Do not disassemble.
•Keep away from heat sources.
•Do not use in areas of increased radiation.
4.3.1 Functional description of the tablet
The supplied tablet is connected to the measuring head via the
internal Bluetooth interface. The evaluation of the measured
values is done with the pre-installed app.
The tablet is charged using the charging adapter and the USB type
C cable supplied.
CAUTION
Danger of confusion!
Charging the tablet: USB type C.
Charging the measuring head: USB mini.

Functional description and operation
WARNING
Damage by liquid!
The charging socket must be dry and free of dirt during the
charging process.
1 USB type C port (charging)
2 ON key
4.3.2 Operating the APP
The pre-installed APP is used to visualize the values of the
measuring head.
4.3.2.1 Starting the APP
The APP for the clamping force measuring device is started via the
APP ICON on the start screen.
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Functional description and operation
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4.3.3 Live screen
All the relevant data can be visualized and processed on the live
screen.
1 Set display for live view / start screen
2 Set display for clamping force history for clamping devices stored
3 Set display for the clamping force images stored
4 Set display for the machine and clamping device editor
5 Button for connection with a measuring head
6 Status of the connected measuring head (charging status /
connection quality)
7 Button for selecting a machine
8 Button for selecting a machine-based clamping device
9 Button for taring the measuring head
10 Advanced menu (language settings / imprint)
11 Current measured data for clamping force displayed in a diagram
12 Current measured data display (clamping force / temperature)
13 Selection of clamping device type (responsible for the correct
clamping force calculation)
14 Button to start / stop data acquisition
15 Button for saving the current value to clamping force history

Functional description and operation
4.3.3.1 Sequence for clamping force measurement
• Load the measuring head and switch it on. As soon as the power
button is pressed, an LED lights up.
• Select measuring head and connect with APP (5).
– The measuring head designation in the radio network
corresponds to the serial number. This is applied to the
measuring head.
– Measured values are now transferred and displayed
automatically.
• Tare of the measuring head (9) with unloaded measuring head.
• Insert the measuring head into the clamping device and clamp
it.
– The measuring head must be inserted plane-parallel to the
chuck jaws.
– The contact point of the jaws must be centered on the
clamping insert (jaw height > 15 mm).
Variant A: Direct measurement without machines and clamping
device selection
• Select the calculation method for the clamping force suitable for
the clamping device (13).
Variant B: Measurement with selection of machine and clamping
device
• Selection or creation of machine (7).
• Selection or creation of clamping device (8).
– Calculation method for clamping force is predefined.
– Maximum actuation and clamping force are displayed.
• Start / stop clamping force data acquisition (14), image stored is
displayed at (3).
• Current clamping force value can be stored in history (15),
history is displayed at (2).
4.3.3.2 Advanced menu
In the advanced menu (10), the language can be changed by the
user.
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Functional description and operation
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4.3.4 History
Values for machines and their clamping devices can be stored and
archived in the history. The history of the measured values can be
called up.
7 Button for selecting a machine
8 Button for selecting a machine-based clamping device
16 Export data series (to tablet)
17 Delete data item / data series
18 Data display for the selected data item (date, processor, actuation,
note)
4.3.4.1 History display for a clamping device
• History selection (2).
• Selection of machine on which the clamping device is located
(7).
• Select the clamping device (8).
Diagram with data items is displayed
• Selection of a desired measuring item on the diagram.
– Bar changes color.
– Data is displayed for the data item (18).
• Export or delete data series (16) (17).

Functional description and operation
4.3.5 Images
Images of clamping force/time diagrams can be saved in relation
to the clamping device. These can then be viewed and edited.
7 Button for selecting a machine
8 Button for selecting a machine-based clamping device
19 Diagram of data acquisition
20 Selection area for the available images
21 Hide / show selection area
22 Editing fields for the images saved
4.3.5.1 Saved images display
• Selecting images (3)
• Selecting the machine on which the clamping device is located
(7)
• Selecting the clamping device (8)
– Saved images are displayed (20)
• Selection of the desired image (20)
– Diagram of measured values (19) is displayed
– Editing the image (22) (comment, rename, export, delete)
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Functional description and operation
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4.3.6 Machines and clamping devices editor
In the machine and clamping devices editor, machines and
associated clamping devices can be created, edited and viewed.
7 Button for selecting a machine
8 Button for selecting a machine-based clamping device
23 Machine parameters
24 Clamping device parameters
4.3.6.1 Entering and changing machines and clamping devices
• Open machine and clamping device editor (4).
• Selecting or newly creating a machine (7).
• Select or create the clamping device for the machine (8).
– All fields for the clamping device must be filled in.
– The correct method of calculating the clamping force must
be selected for the clamping device.
4.3.7 Calculation method of the clamping force
In clamping technology, the clamping force is determined using
two different calculation methods. This can be selected in the APP
for the respective clamping device. The selection is based on the
clamping device manufacturer (SCHUNK, GRESSEL, KONTEC).
4.3.7.1 SCHUNK clamping device (e.g. TANDEM)
For SCHUNK clamping devices, the clamping force results from the
arithmetic total of the jaw clamping force acting on each jaw. For
clamping devices with two contact points (e.g. TANDEM), this
results in a calculation factor of 2.0.