Stahlwille 7707-1-2W User manual

Operating Instructions
STAHLWILLE
Sensotork Electronic Workshop Torque Tester
7707-1-2W, 7707-1-3W, 7707-1W, 7707-2W, 
7707-2-1W, 7707-2-2W and 7707-3W
Please ensure you read these Operating Instructions carefully to ensure
you operate the equipment correctly and safely and keep these
instructions in an accessible place.
402150001
91979782

EN
Preface
These Operating Instructions will assist you in using the electronic
workshop torque testers, 
models 7707-1W, 7707-1-2W, 7707-1-3W, 7707-2W, 7707-2-1W, 
7707-2-2W and 7707-3W,
safely,
economically and
in accordance with the intended purpose.
Target group for these Operating Instructions
The Operating Instructions are design for use with the electronic
workshop torque testers models 7707-1W, 7707-1-2W, 
7707-1-3W, 7707-2W, 7707-2-1W, 7707-2-2W, 7707-3W.
The information contained in the Operating Instructions is for
authorised,qualified,instructedpersonnel.Itisassumedthatthese
people will have generally applicable technical knowledge.
Any person
transporting,
setting up,
dismantling,
operating,
servicing or
disposing
of this electronic torque tester for torque wrenches or torque
screwdrivers is expected to have read and understood the
corresponding sections of these Operating Instructions.
If, for any reason, you do not understand any of the information in
these Operating Instructions or feel there is some important
information missing, please contact Eduard Wille GmbH & Co. KG.

Contents
Introduction to the Operating Instructions . . . . . . . . . . . . . . 5
Structural features of the information on dangers . . . . . . . . . . . 5
Structural features of notices referring to property damage . . . . 5
Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Addenda . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Conventions used in these Instructions . . . . . . . . . . . . . . . . . . . 6
Fundamental safety instructions . . . . . . . . . . . . . . . . . . . . . . 7
Intended purpose and field of application . . . . . . . . . . . . . . . . . . 7
Obligations relating to the Operating Instructions . . . . . . . . . . . . 8
CE symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Fundamental safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . 9
Technical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Transport, items supplied, storage . . . . . . . . . . . . . . . . . . . . 19
Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Items included . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Optional accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Preparing and mounting the electronic workshop torque
tester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
General fitting instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Mounting the electronic workshop torque tester . . . . . . . . . . . . 29
Attaching the display unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Attaching the display unit to the mounting block . . . . . . . . . . . 32
Fixing the display unit on the stand . . . . . . . . . . . . . . . . . . . . . 36

EN
Inserting and removing transducers . . . . . . . . . . . . . . . . . . .38
Inserting the transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Releasing the transducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Connecting the display unit . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Connecting a USB-adapter (optional) . . . . . . . . . . . . . . . . . . . .44
Switching the display unit on and off . . . . . . . . . . . . . . . . . .45
Testing a torque wrench or torque screwdriver . . . . . . . . . .47
Inserting the torque wrench or torque screwdriver . . . . . . . . . . .48
Reading off measurements via the display unit . . . . . . . . . . . . .51
Testing indicating torque wrenches or torque screwdrivers . . . .54
Maintenance and cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Repairs, calibration and adjustment . . . . . . . . . . . . . . . . . . .62
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

5
Introduction to the Operating Instructions
Structural features of the information on dangers
The following categories of notices are contained in these
operating instructions:
Structural features of notices referring to property
damage
DANGER
Notices containing the word DANGER
warn of hazards which lead directly to
severe or fatal injuries.
WARNING
Notices containing the word WARNING
warn of hazards which may possibly
lead to severe or fatal injuries.
CAUTION
Notices containing the word CAUTION
warn of hazards which may possibly
lead to slight to moderate injuries.
ATTENTION!
Notices containing the word ATTENTION warn of
possible property damage.
!
!
!

6
EN
Availability
If these Operating Instructions should be mislaid or become
unusable, replacement copies are available from Eduard Wille
GmbH & Co. KG. If you have not yet registered your device, you
will need the following details to place your order:
The number of the transducer
The name of your local distributor
The date of purchase of the device
The order number is to be found in the bottom left-hand corner of
the title page.
Addenda
As legal regulations for the machine location relating to
accident prevention and
environmental protection change,
you are required to amend or add to these Operating Instructions.
Conventions used in these Instructions
Throughout these Operating Instructions, certain typographical
conventions have been used. This is to underline whether a text is
descriptive,
a list of points or
a list of actions
to be carried out.
These instructions provide special information on the most
economic use of the electronic workshop torque tester for
torque wrenches or torque screwdrivers.

7
Fundamental safety instructions
Intended purpose and field of application
Only use the electronic workshop testers for the purpose of testing
torque wrenches or torque screwdrivers as described in these
instructions. The 7707-1-3W electronic workshop tester is
designed for the calibration and adjustment of indicating and
clicking torque screwdrivers as well as for general torque
measurement.
The 7707-1W, 7707-1-2W, 7707-2W, 7707-2-1W, 7707-2-2W and
7707-3W electronic workshop torque testers are intended for the
calibration and adjustment of indicating and clicking torque
wrenches as well as for simply measuring torque.
Any use not conforming to the intended use of the electronic
workshop torque tester as described herein can result in damage
to property and even personal injury.The "intended purpose"
includes full adherence to the information contained in this
instruction booklet, in particular the safety instructions and
technical tolerance limits.
Furthermore, it is essential to observe all the laws and regulations
in force at the location where the tool is to be used.
STAHLWILLE will not accept any liability for damage or injury
occurring from use that does not conform with the intended use.
DANGER
Danger due to independent conversions
or modifications to the electronic
workshop tester.
Make sure that no conversions are
carried out on the electronic workshop
tester.
!

8
EN
Obligations relating to the Operating Instructions
The user of the electronic workshop torque tester for torque
wrenches or torque screwdrivers is responsible for ensuring that
these Operating Instructions are readily available wherever the
electronic workshop tester is in use. Always keep the Operating
Instructions close to the electronic torque tester.
CE symbol
All electronic workshop torque testers conform with the EU
directives and regulations currently in force. The CE mark is to be
found on
the transducer,
the mains adaptor,
the front of the display unit
and the (optional) USB adaptor.

9
Fundamental safety instructions
The 7707-1W, 7707-1-2W, 7707-1-3W, 7707-2W, 7707-2-1W,
7707-2-2W and 7707-3W electronic workshop torque testers and
their display units are precision testing equipment and must be
treated with corresponding care. Avoid subjecting the tool to
physical knocks, chemicals or excessive temperatures beyond the
limits given in these instructions. Damp and dirt can cause
malfunctioning and lead to inaccurate readings.
CAUTION
Risk of injury due to overloading the
electronic workshop tester.
Only overload the electronic workshop
tester briefly.
Do not overload the electronic workshop
tester to more than 20% of the maximum
value.
!

10
EN
Technical description
Identification
All the transducers have a serial number on them and are supplied
with a works calibration certificate.
Serial number
Accuracy
The range of measurement is
Sensotork 7707-1-2W, 7707-1-3W: 0,2 to 10 N·m,
Sensotork 7707-1W: 0,4 to 20 N·m,
Sensotork 7707-2W: 2 to 100 N·m,
Sensotork 7707-2-1W: 4 to 200 N·m,
Sensotork 7707-2-2W: 8 to 400 N·m,
Sensotork 7707-3W: 25 to 1100 N·m.
402150001
402150001

11
Therange of measurementaccordingtothedisplayvariationofthe
individual models can be found in the tables below.
Sensotork 7707-1-2W, 7707-1-3W:
Sensotork 7707-1W:
Sensotork 7707-2W:
Display variation N·m ft·lb in·lb
±1 % of value 0,2–10 0,15–7,4 1,8–88,5
±0,5 % of value 1–10 0,75–7,5 9–88,5
±0,25 % of value 2–10 1,5–7,5 17,5–88,5
Display variation N·m ft·lb in·lb
±1 % of value 0,4–20 0,3–15 3,5–177
±0,5 % of value 2–20 1,5–15 18–177
±0,25 % of value 4–20 3–15 35–177
Display variation N·m ft·lb in·lb
±1 % of value 2–100 1,5–74 18–885
±0,5 % of value 10–100 7–74 89–885
±0,25 % of value 12–100 9–74 106–885

12
EN
Sensotork 7707-2-1W:
Sensotork 7707-2-2W:
Sensotork 7707-3W:
Additional details can be seen from the calibration certificate
supplied with the unit.
Functional description
The torque to be determined is applied using an internal square
drive.
Display variation N·m ft·lb in·lb
±1 % of value 4–200 3–148 35–1770
±0,5 % of value 20–200 15–148 177–1770
±0,25 % of value 40–200 30–148 354–1770
Display variation N·m ft·lb in·lb
±1 % of value 8–400 6–295 71–3540
±0,5 % of value 40–400 30–295 354–3540
±0,25 % of value 80–400 59–295 708–3540
Display variation N·m ft·lb in·lb
±1 % of value 25–1100 18–812 221–9736
±0,5 % of value 110–1100 81–812 974–9736
±0,25 % of value 220–1100 162–812 1947–9736

13
Technical specifications
7707-1-2W and 7707-1-3W
Weight of the electronic 
workshop torque tester

6,255 kg
Weight of the display unit 0.190 kg
Weight of the stand 0.480 kg
Dimensions of the electronic workshop
torque tester  width: 180 mm
height: 215 mm
depth: 180 mm
Dimensions of the display unit width: 80 mm
height: 145 mm
depth: 38.5 mm
Range of measurement 0.2–10 N·m
Rated value 10 N·m (with a maximum overload
of 20% for a short time only)
Mains adapter power supply 110 V – 230 V AC
Display unit power supply 9–12 V DC
Transducer current consumption maximum 60 mA

14
EN
7707-1W
Weight of the electronic 
workshop torque tester

6,255 kg
Weight of the display unit 0,190 kg
Weight of the stand 0,480 kg
Dimensions of the electronic 
workshop torque tester

width: 180 mm
height: 215mm
depth: 180 mm
Dimensions of the display unit width: 80 mm
height: 145 mm
depth: 38,5 mm
Range of measurement 0,4–20 N·m
Rated value 20 N·m (with a maximum overload
of 20% for a short time only)
Power rating of the mains adaptor 110 V – 230 V AC
supply to the display unit 9–12 V DC
Current rating for a transducer / a display
unit, in total

maximum 60 mA

15
7707-2W
Weight of the electronic 
workshop torque tester

7,025 kg
Weight of the display unit 0,190 kg
Weight of the stand 0,480 kg
Dimensions of the electronic 
workshop torque tester

width: 180 mm
height: 215 mm
depth: 180 mm
Dimensions of the display unit width: 80 mm
height: 145 mm
depth: 38,5 mm
Range of measurement 2–100 N·m
Rated value 100N·m(withamaximumoverload
of 20% for a short time only)
Power rating of the mains adaptor 110 V – 230 V AC
supply to the display unit 9–12 V DC
Current rating for a transducer / a display
unit, in total

maximum 60 mA

16
EN
7707-2-1W
Weight of the electronic 
workshop torque tester

7,511 kg
Weight of the display unit 0,190 kg
Weight of the stand 0,480 kg
Dimensions of the electronic 
workshop torque tester

width: 180 mm
height: 215 mm
depth: 180 mm
Dimensions of the display unit width: 80 mm
height: 145 mm
depth: 38,5 mm
Range of measurement 4–200 N·m
Rated value 200N·m(withamaximumoverload
of 20% for a short time only)
Power rating of the mains adaptor 110 V – 230 V AC
supply to the display unit 9–12 V DC
Current rating for a transducer / a display
unit, in total

maximum 60 mA

17
7707-2-2W
Weight of the electronic 
workshop torque tester

7,654 kg
Weight of the display unit 0,190 kg
Weight of the stand 0,480 kg
Dimensions of the electronic 
workshop torque tester

width: 180 mm
height: 215 mm
depth: 180 mm
Dimensions of the display unit width: 80 mm
height: 145 mm
depth: 38,5 mm
Range of measurement 8–400 N·m
Rated value 400N·m(withamaximumoverload
of 20% for a short time only)
Power rating of the mains adaptor 110 V – 230 V AC
supply to the display unit 9–12 V DC
Current rating for a transducer / a display
unit, in total

maximum 60 mA

18
EN
7707-3W
Weight of the electronic 
workshop torque tester

7,495 kg
Weight of the display unit 0,190 kg
Weight of the stand 0,480 kg
Dimensions of the electronic 
workshop torque tester

width: 180 mm
height: 215 mm
depth: 180 mm
Dimensions of the display unit width: 80 mm
height: 145 mm
depth: 38,5 mm
Range of measurement 25–1100 N·m
Rated value 1100 N·m (with a maximum
overload of 20% for a short time
only)
Power rating of the mains adaptor 110 V – 230 V AC
supply to the display unit 9–12 V DC
Current rating for a transducer / a display
unit, in total

maximum 60 mA

19
Transport, items supplied, storage
Transport
Transport the electronic workshop torque tester, the transducer
and display unit only in the case supplied and ensure that the case
cannot be dislodged and cannot fall in transit.
ATTENTION!
Damage to and decalibration of the electronic
workshop tester.
Do not expose the aluminium mounting block, the
transducer or the display unit to impacts.
Do not throw the electronic workshop tester or its
components.

20
EN
Items included
Electronic workshop torque tester, model 7707-1W
402150001