Schmidt FS Series Manual de usuario
Tension Meter
FS Series
Model FSR
Edition FSR 01.E
Instruction Manual
Valid as of: 01.09.2017 • 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
2
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, RoHs II and WEEE registration .................................... 4
2 Available models ...................................................................................................... 5
2.1 General information................................................................................................ 5
2.2 Specifications of the FS series............................................................................... 5
2.3 Assignment of the connector.................................................................................. 6
2.3.1 Connecting the tension meter........................................................................... 6
2.4 Optional accessories.............................................................................................. 6
2.5 Delivery includes .................................................................................................... 6
2.6 Unpacking .............................................................................................................. 7
3 Operating procedure ................................................................................................ 7
3.1 Mounting possibilities ............................................................................................. 7
3.2 Initial setup ............................................................................................................. 8
3.3 Determining the tension range ............................................................................... 8
3.4 Internal adjustment of the sensors ......................................................................... 9
3.4.1 Zero adjustment................................................................................................ 9
3.4.2 Gain adjustment ............................................................................................. 10
4 Service and maintenance....................................................................................... 11
4.1 Rollers .................................................................................................................. 11
5 Cleaning................................................................................................................... 11
6 Verification interval ................................................................................................ 11
7 Correspondence ..................................................................................................... 11
8 Repairs..................................................................................................................... 12
3
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.
4
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 pre-
vention 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 result-
ing 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.
1.5 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.
1.9 Declaration of conformity, RoHs II and WEEE registration
In compliance with the EU Directives 2014/30/EU and 2011/65/EU
Hans Schmidt & Co GmbH is registered in compliance with
the German Electrical and Electronic Equipment Act (ElektroG)
under WEEE Reg. No. DE 48092317.
5
2 Available models
2.1 General information
These instruction manual refer to the FSR Model of the FS Series:
Model Tension Ranges N
FSR-10N 0 - 10
FSR-20 N 0 - 20
FSR-50 N 0 - 50
FSR-100 N 0 - 100
FSR-200 N 0 - 200
FSR-500 N 0 - 500
Guide rollers:
V-Groove Line Speed
m/min ... max.
Groove Ø
in mm Roller Material
Standard 4000 29.5 Hadened steel
Code R1 4000 29.5 Hard chrome-plated steel
(radius R5)
Code F4000 70 Hard-coated aluminium
Code FB 4000 70 Tempered steel
flat
Code B6 2000 29.5 Hardened steel, width 6 mm
Code B10 2000 29.5 Hardened steel, width 10 mm
2.2 Specifications of the FS series
Calibration: According to SCHMIDT factory procedure
Accuracy: ± 1.5% full scale and ± 1 digit
Other calibration material: ± 3% full scale or better
Overload protection: 100% of tension range
Measuring principle: Strain gauge bridge
Meas. roller deflection: 0.5 mm, max.
Natural frequency of
measuring spring: Approx. 500 Hz, depending on tension range
Signal processing: Analog
Output signal: 0 - 1 V DC, impedance: > 5 kOhm (standard)
Option Code A2: 0 - 10 V DC
Option Code A3: 4 - 20 mA
Damping (fg): Standard: approx. 30 Hz (other values on request)
Temperature coefficient: Zero point: less than ± 0.05% full scale/°C
Temperature range: 10 - 45 °C
Air humidity: 85% RH, max.
Power supply: 15 to 24 V DC (21mA) (regulated)
Option Code A3: max. 50 mA
Housing: Aluminium
Weight: Approx. 250 g
6
To assure immunity to random noise, the measuring head must be installed in
such a way that it is insulated from ground (GND).
The shield of the connecting cable must be connected to the metal housing of the
connecting plug.
2.5 Delivery includes
Sensor
Instruction manual
The requirements of the CE specification are only complied with if the ten-
sion sensor is equipped and operated with display units and connecting
cables supplied by Hans Schmidt & Co GmbH. Certification to the CE
specification does not extend to, and shall be invalid for any other combina-
tion. Under no circumstances shall Hans Schmidt & Co GmbH be held liable
for any damage resulting from the use of non-SCHMIDT sensors or cables.
2.3.1 Connecting the tension meter
2.3 Assignment of the connector
Pin assignment (viewed from outside):
1- Vcc + 15 to 24 V DC regulated
2 -Ground
3- Ground
4- Signal output -
5- Signal output +
fig. 2.3a
Strand assignment of cable EK0620:
1(white) - Vcc + 15 to 24 V DC regulated
2(black) - Ground
3 (brown) -Ground
4(blue) - Signal output -
5(grey) - Signal output +
6 - Shield
5
3
Shield
4
1
2
Female socket M9 (series 712 - company Binder)
1
2
3
4
5
fig. 2.3b 6
2.4 Optional accessories
Code A2: Analog output 0 - 10 V DC
Code A3: Analog output 4 - 20 mA
E10070 M9 sub-miniatur connector (series 712 - company Binder)
E10071 M9 sub-miniatur right angle plug (series 712 - company Binder)
EK0612 Connecting cable M9 sub-miniatur connector and open ends. Length 2 m
EK0621 Connecting cable M9 sub-miniatur connector and open ends. Length 5 m
EK0622 Connecting cable M9 sub-miniatur right angle plug and open ends. Length 2 m
EK0623 Connecting cable M9 sub-miniatur right angle plug and open ends. Length 5 m
EK0624 Connecting cable M9 sub-miniatur connector an 8-pin diode plug. Length 2 m
7
2.6 Unpacking
Unpack the instrument 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 Operating procedure
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.
CE conformity testing was carried out and successfully passed by Hans
Schmidt & Co GmbH with a complete unit consisting of:
TSR sensor, SCD-1 display unit and an 5 m long connecting cable (special
cable).
In no event shall Hans Schmidt & Co GmbH take over any warranty coverage
for, or shall be held liable for, any damage resulting from self-made cables.
The model number, the serial number, the calibration label (option) and the
SCHMIDT Quality Seal are provided on the cylindrical portion of the sensor.
fig. 3.1
3.1 Mounting possibilities
Sensors FSR can be mounted in different ways:
- Mounting by using the frontplate on a cylindrical hole (cut out 38.5 - 40 mm Ø)
- Mounting on a flat platform
8
3.3 Determining the tension range
The tension range can be calculated for every wrapping angle with this formula:
material path
α
Wrap Angle
30°
60°
90°
180°
Resultant
Force Multiplier
0.5 x (FZLine Tension)
1.0 x (FZLine Tension)
1.4 x (FZLine Tension)
2.0 x (FZLine Tension)
Wrap
Angle
Recommended wrapping angle 40 - 180°
FN= Multiplier x FZ
FNFZ
α
Guide
Roll
Line
Tension
fig. 3.2
3.2 Initial setup
- If the sensor is delivered with the standard roller, it is already mounted in the factory.
If the device is supplied with a roller code F, FB, R1, B6 or B10, it must be installed.
Tight the cap nut with 1 Nm.
- Install the sensor at the desired measuring location using the 4 provided mounting holes.
To avoide damage of the load cell, the transmission of force has to occure in direction of
the arrow. The direction of force ist the angle bisector (fig.3.2).
- Connect the sensor to the supplied or existing display unit.
The pin assignment of the 8-pin connector located on the rear side of the sensor is
described in chapter 2.3
- If the material path is other than vertical or if the process material deviates significantly
from the SCHMIDT calibration material, you need to carry out zero adjustment and gain
adjustment as described in chapters 3.4.1 and 3.4.2 before starting measurement.
- Allow approx. 10 minutes for thermal stabilization of the sensor.
- Thread the process material through the measuring roller, following the arrow on the
front of the sensor.
9
- Connect a volt meter to the yellow and green leads of the connecting cable
- Adjust the potentiometer, which you can reach through the zero hole in the housing,
with a screwdriver (with a point width of max. 1.9 mm) until the display of the connected
volt meter reads 0 cN = display 0 V,
Do not insert the screwdriver at an angle
as this may damage the potentiometer.
3.4 Internal adjustment of the sensors
General information:
All tension meters are calibrated with standard materials - such as polyamide monofila-
ment (PA) - according to the SCHMIDT factory procedure; therfore the wraping angle is
180°.
3.4.1 Zero adjustment
- Install the sensor in the desired position at the measuring location using the provided
mounting holes.
- Allow approx. 10 minutes for thermal stabilization of the sensor.
3.3 Determining the tension range (cont.)
FN= Nominal load (Multiplicator x FZ)
FZ= Line tension
α= Wrapping angle at the guide roll
FN= 2∙FZ∙sin α
2
fig. 3.4.1b
Force direction
Measuring
roller
fig. 3.4.1a
Zero
Gain
When selecting the nominal measurement force it is necessary to take into
account the weight of the guide roll and raise the nominal load respectively,
particularly when working with small nominal forces.
In any case you need to carry out static zero and gain
adjustment as described in chapters 3.4.1 and 3.4.2.
Since zero and gain adjustments are always performed
statically, the readings may differ under dynamic load.
10
Do not insert the screwdriver at an angle as this may damage
the potentiometer.
Gain adjustment of sensors with output signal Code A10 has to be realized
with display unit.
- Hang a weight that corresponds 100% of the tension range from the process material.
- Adjust the potentiometer, which you can reach through the gain hole in the housing,
with a screwdriver (with a point width of max. 1.9 mm) until the display of the connected
volt meter reads,
for example:
Sensor model FSR - 20N:
Weight 20 N = Displays 1 V for FSR standard version
or
Weight 20 N = Displays 100 V for FSR version with 10 V output signal.
- Check the adjustments with a new filament of the process material and repeat the
procedure, if required, as described in chapters 3.4.1 and 3.4.2.
Requirement: Zero adjustment carried out.
Thread the process material in the measuring roller
3.4.2 Gain adjustment
fig. 3.4.2b
Measuring
roller
Weight
Force
direction
fig. 3.4.2a
Zero
Gain
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