Schmidt Z Series User manual

Tension Meter
Z Series
Model ZD2
Edition ZD2 04.2.E
Instruction Manual
Valid as of: 01.06.2007 • Please keep the manual for future reference!
S C H M I D T
c o n t r o l i n s t r u m e n t s

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Contents
1 Warranty and liability ............................................................................................... 3
1.1 Notices within the instruction manual..................................................................... 3
1.2 Responsibilities of the operating company............................................................. 3
1.3 Responsibilities of the personnel ........................................................................... 3
1.4 Informal safety measures....................................................................................... 4
1.5 Training of the personnel ....................................................................................... 4
1.6 Intended use .......................................................................................................... 4
1.7 Dangers in handling the device.............................................................................. 4
1.8 Copyright................................................................................................................ 4
1.9 Declaration of conformity ....................................................................................... 4
2 Available models ...................................................................................................... 5
2.1 Specifications ......................................................................................................... 5
2.2 Delivery includes .................................................................................................... 6
2.3 Unpacking .............................................................................................................. 6
3 Initial setup and operating procedure .................................................................... 6
3.1 Notes before starting measurement....................................................................... 6
3.2 Operating elements of the tension meter ............................................................... 7
3.3 Measuring with the tension meter .......................................................................... 7
3.4 Checking the measuring accuracy ......................................................................... 8
4 Service and maintenance......................................................................................... 9
4.1 Rollers .................................................................................................................... 9
5 Cleaning..................................................................................................................... 9
6 Verification intervals ................................................................................................ 9
6.1 Verification of calibration and determination of repair costs................................. 10
7 Correspondence ..................................................................................................... 11
8 Repairs..................................................................................................................... 11

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1.3 Responsibilities of the personnel
All persons who work with the device agree to perform the following duties before starting
work:
- to observe the basic regulations on industrial safety and accident prevention.
- to read the chapter on safety and the warning notices in these instruction manual and
to confirm with their signatures that they have understood them.
1 Warranty and liability
In principle, the supply of the device is subject to our “General Conditions of Sale and
Delivery.” These have been provided to the operating company on conclusion of the
contract, at the latest.
Warranty:
- SCHMIDT tension meters are warranted for 12 months.
Parts subject to wear, electronic components and measuring springs are not covered by
the warranty. No warranty or liability will be accepted for bodily injury or property damage
resulting from one or several of the following causes:
- Misuse or abuse of the device.
- Improper mounting, commissioning, operation and maintenance of the device
(e.g. verification interval).
- Operation of the device if any safeguards are defective or if any safety and protection
precautions are not properly installed or not operative.
- Failure to comply with the notices in the instruction manual regarding transport,
storage, mounting, commissioning, operation, maintenance and setup of the device.
- Any unauthorized structural alteration of the device.
- Insufficient inspection of device components that are subject to wear.
- Opening the device or improper repair work.
- Disasters caused by the effects of foreign objects or by force majeure.
1.1 Notices within the instruction manual
The fundamental prerequisite for the safe handling of this device and its troublefree opera-
tion is the knowledge of the basic safety notices and safety instructions.
These instruction manual contains the most important notices for the safe operation of the
device.
These instruction manual, in particular the safety notices, must be observed by any person
who works with the device. In addition, the local valid rules and regulations for the preven-
tion of accidents must be complied with.
The representations within the instruction manual are not true to scale.
The dimensions given are not binding.
General indications of direction, such as FRONT, REAR, RIGHT, LEFT apply when view-
ing the front of the device.
1.2 Responsibilities of the operating company
In compliance with the EC Directive 89/655/EEC, the operating company agrees to only
permit persons to work with the device who:
- are familiar with the basic regulations on industrial safety and accident prevention and
who have been trained in handling the device.
- have read and understood the chapter on safety and the warning notices in these
instruction manual and have confirmed this with their signatures.
- are examined regularly on their safe and conscientious working method.

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1.7 Dangers in handling the device
The device was designed according to the state of the art and the approved safety stan-
dards. Nevertheless, its use may cause serious or fatal injury to the user or third persons,
and/or an impairment of the device or of other material assets.
The device may only be applied:
- For its intended use in a faultless condition with regard to the safety requirements.
- Malfunctions that could impair safety must be remedied immediately.
- Personal protective equipment must be used according to the EC Directive 89/686/EEC.
1.4 Informal safety measures
The instruction manual must always be kept on hand where the device is operated.
Apart from the instruction manual, the general and local valid regulations on accident
prevention and environmental protection must be provided and complied with.
1.6 Intended use
The device is intended exclusively to be used as a tension meter. Any other use or any
use exceeding this intention will be regarded as misuse. Under no circumstances shall
Hans Schmidt & Co GmbH be held liable for damage resulting from misuse.
The intended use also includes:
- Complying with all notices included in the instruction manual and observing all
inspection and maintenance works.
1.8 Copyright
The copyright on these instruction manual remains with the company
Hans Schmidt & Co GmbH.
These instruction manual is intended for the operating company and its personnel only.
They contain instructions and notices that may only be reproduced on the prior written
permission of
Hans Schmidt & Co GmbH
and under indication of the complete reference data.
Violations will be prosecuted.
1.9 Declaration of conformity
Our mechanical tension meters do not belong to the EC machinery directive 2006/42/EC
and do not have a CE mark.
1.5 Training of the personnel
Only trained and instructed personnel is permitted to work with the device. The responsi-
bilities of the personnel must be clearly defined for mounting, commissioning, operation,
setup, maintenance, and repair. Trainees may only work with the device under the super-
vision of experienced personnel.
The device must not be operated in potential explosive areas
and must not come into contact with aggressive substances.

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2 Available models
These instruction manual refer to model ZD2 of the Z series.
The individual models of the Z Series are also available with the following
modifications (customized versions):
- Special tension ranges
- Calibration for material path other than standard (vertical)
- Calibration to different units of measure, such as g
* Outer distance between outside guide rollers / pins
** Suitable for 95% of all applications. PA = Polyamide Monofilament.
If the material to be measured differs significant from the SCHMIDT
calibration material in diameter, rigidity, shape, etc., we recommend
calibration using customer supplied material.
For this purpose a material sample of about 5 m should be supplied.
International unit of tensile force: 1 cN = 1.02 g = 0.01 N
2.1 Specifications
Calibration: According to SCHMIDT factory procedure
Accuracy: ± 1% full scale (FS) or ± 1 graduation on scale
Scale diameter: 54 mm
Temperature range: 10 - 45°C
Air humidity: 85% RH, max.
Housing material: Plastic (POM)
Dimensions: 157 x 85 x 32 mm (L x W x H)
Weight net (gross): Approx. 220 g (620 g)
Model
Tension
Range
cN
*Measuring
Head Width
mm
**SCHMIDT
Calibration Material
ZD2-30 3 - 30 63 PA: 0.12 mm Ø
ZD2-50 5 - 50 63 PA: 0.12 mm Ø
ZD2-100 10 - 100 63 PA: 0.12 mm Ø
ZD2-150 20 - 150 63 PA: 0.12 mm Ø
ZD2-200 20 - 200 63 PA: 0.12 mm Ø
ZD2-300 20 - 300 63 PA: 0.12 mm Ø
V-grooved Line Speed
max. m/min Roller Material
Standard 2000 Hard-coated Aluminium
Code K3500 Hard-coated Aluminium
Code H5000 Aluminium plasmabeschichted
(model ZD2-100 and higher ranges)
Code T1000 Plastic (POM) black
Code W1000 Nickel-plated steel
Code ST 1000 Hardened steel
Code CE2 1000 Ceramic
Guide rollers:

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2.2 Delivery includes
Tension meter
Certificate of Compliance with the order 2.1 under EN 10204
Instruction manual
Carrying case
2.3 Unpacking
Unpack the tension meter and inspect it for any shipping damage. Notices of defect must
be announced immediately, in writing, at the latest within 7 days on receipt of the goods.
3 Initial setup and operating procedure
3.1 Notes before starting measurement
Have you read and understood the instruction manual, in particular
chapter 1 “Warranty and liability” ?
You are not permitted to operate the tension meter before doing so.
Before working with the instrument you must put on your personal protective
clothing, if necessary. For example, eye protectors, gloves, etc.
To avoid damage, do not move the center roller by hand.
Tensions that exceed the tension range of the instrument by more than 100%
may cause permanent damage to the measuring spring and must be avoided
under any circumstances.
Do not turn the outer ring of the movement, the measured values will other-
wise be wrong. If the outer ring has been turned, check the calibration as
described in chapter 3.3 and correct the position of the outer ring.
The ID plate with the serial number as well as the calibration label (optional)
are provided on the rear side of the instrument, the SCHMIDT Quality Seal is
provided on the front side.
SCHMIDT quality seal
Calibration label
(option)
ID plate with serial number

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3.2 Operating elements of the tension meter
Trigger
Measuring
roller
Outer
rollers
Material to be
measured
Scale
Filament
guide
fig. 3.2a fig. 3.2b
Material
to be
measured
Measuring
roller
Outer
rollers
3.3 Measuring with the tension meter
Inserting:
- Push the trigger as far as it will go in the direction of the arrow to extend the outer rollers.
- Keeping the outer rollers extended, bring the instrument behind or under the filament and
move it so that the filament guide bars contact the material to be measured (see fig.
3.1b).
- Slowly release pressure on the trigger until the outer rollers return to their original
position. It is important to assure that the measured material runs smoothly between the
outer rollers and the .
It is essential that the trigger return slowly to its initial position.
Any uncontrolled snap-back may affect calibration and may also
damage the instrument.
The scale pointer will now show the line tension directly.
Removing:
- Push the trigger as far as it will go in the direction of the arrow.
- With the outer rollers extended, move the instrument away from the material.
- Slowly release pressure on the trigger until the outer rollers return to their original
position.

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3.4 Checking the measuring accuracy
Measuring roller
Outer rollers
Weight
Scale
Trigger
Material to be
measured
Filament guide
fig. 3.3
All tension meters are calibrated with standard materials - such as polyamide monofila-
ment (PA) - according the SCHMIDT factory procedure. The filament sizes are noted in
chapter 2. Any difference in process material size and rigidity from the standard material
may cause a deviation of the accuracy.
In 95 % of all industrial applications the SCHMIDT calibration has been proven to provide
the best results and is used for comparative purposes.
If the measured material differs significant in size, rigidity and shape we recommend spe-
cial calibration using customer`s sample. For this purpose a material sample of 5 m should
be supplied.
Checking procedure:
- Suspend a known weight that corresponds to the tension to be measured (pay attention
to the correct unit of measure) from the material to be measured, vertically, as shown in
fig. 3.3. (Always use a fresh portion of the material to be measured).
- Push the trigger as far as it will go in the direction indicated by the arrow and thread
the measured material between the outer rollers and the measuring roller. Refer to
chapter 3.2
- Slowly release pressure on the trigger until the outer rollers return to their original
position.
It is essential that the trigger return slowly to its initial position.
Any uncontrolled snap-back may affect calibration and may also
damage the instrument.
- Before the final check, move the instrument slowly up and down to compensate any
friction caused by the instrument and thus ensure the repeatability.
- The tension value should be equal to the value of the suspended weight.
If this procedure shows a deviation beyond the allowable tolerance and a reliable
operation is no longer allowed, the instrument has to be recalibrated or repaired.
For recalibration, return the tension meter to the factory.

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4 Service and maintenance
The tension meter is easy to maintain. Depending on operating time and load, the ten-
sion meter should be checked according to the locally valid regulations and conditions (as
described in chapter 3.3). The use of other test methods than the procedure described in
chapter 3.3 may cause deviating measuring results.
4.1 Rollers
You should regularly inspect the rollers to assure that they are running easily and smooth-
ly. You can replace the rollers yourself, as necessary. When ordering spare rollers, please
indicate the tension meter model and the serial number (on the rear side of the tension
meter).
e. g.:
Ordering of spare rollers
Model: ZD2-100 (on the rear of the tension meter)
Serial number: 212 - 888888 (on the rear of the tension meter)
Standard rollers: Order number R521204
Supply: 1 set (3 pieces) spare rollers 2000 m/min with mounting wrench
or
Model: ZD2-100-K (on the rear of the tension meter)
Serial number: Z 212 - 888888 (on the rear of the tension meter)
Roller Code K: Order number R521203
Supply: 1 set (3 pieces) spare rollers 3500 m/min with mounting wrench
5 Cleaning
For cleaning the unit, do not use any
AGGRESSIVE SOLVENTS
such as trichloroethylene or similar chemicals.
NO WARRANTY OR LIABILITY
shall be accepted for damage resulting from improper cleaning.
6 Verification intervals
The question of finding the right frequency of calibration accuracy verification depends
on several different factors:
Operating time and load of the SCHMIDT tension meter
Tolerance band defined by the customer
Changes of the tolerance band compared to previous verifications of calibration
Therefore, the interval between verifications must be determined by the user`s Quality As-
surance Department based on the user`s experience.
Assuming normal operating time and load as well as careful handling of the tension meter,
we recommend a verification interval of 1 year.

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6.1 Verification of calibration and determination of repair costs
Flow chart for verifying the calibration of used tension meters, incoming and outgoing veri-
fication with Inspection Certificate 3.1 according to DIN EN 10204
Delivery
Unit can be
calibrated
(functional)
Repair costs
exceed 40 % of as
new value
Costs approved
by customer
No
Yes
No
Yes
No
Yes
Vertification of the
calibration
Visual inspection
and functional test
Values within
specification
Prepare certification
for
incoming calibration
Determination
of costs
Make of
cost estimate
Repair and
adjustment
Verification of the
calibration
Calibration label
on the instrument
No
Invoice scrapping
and disposal
Invoice repair and
calibration services
and dispatch
Invoice
calibration services
and dispatch
Prepare certificate
for outgoing
calibration
Yes
Calibration label
on the instrument

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7 Correspondence
Should you have any questions regarding the instrument or instruction manual, or their use,
please indicate above all the following details which are given on the ID plate:
1) Model
2) Serial number
Notes:
To avoid unnecessary follow-up questions, and the resulting loss of time or
possible misunderstandings, please return the instrument with a detailed fault
description to our service department. Please indicate in your order whether you
require an Inspection Certificate 3.1 according to DIN EN 10204.
Hans Schmidt & Co GmbH
Schichtstr. 16
D-84478 Waldkraiburg
Germany
Service address:
8 Repairs
Shipping instructions:
We kindly ask for return free of charge for us, if possible by airmail parcel. All occurring
charges, if any (such as freight, customs clearance, duty etc.), will be billed to customer.
For return from foreign countries, we ask you to include a proforma invoice with a low value
for customs clearance only, e.g. 50 Euro, each and to advise the shipment in advance by
fax or eMail.

Mailing address:
P. O. B. 11 54
84464 Waldkraiburg Germany
Shipping address:
Schichtstr. 16
84478 Waldkraiburg Germany
Hans Schmidt & Co GmbH
Phone:
int. + 49 / (0)8638 / 9410-0
Fax:
int. + 49 / (0)8638 / 4825
int. + 49 / (0)8638 / 67898
More than 75 years - Worldwide -
e-mail:
[email protected]
Internet:
http://www.hans-schmidt.com
SCHMIDT-Test-Instruments
indispensable in production monitoring,
quality control and automation
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