Burster 9243 User manual

OPERATION MANUAL
Amplifier Module
Model 9243
from Serial-Nr. 308628
Manufacturer:
© 2019
burster
praezisionsmesstechnik gmbh & co kg
burster
praezisionsmesstechnik gmbh & co kg
All rights reserved
Talstr. 1 - 5
P.O. Box 1432
76593 Gernsbach
76587 Gernsbach
Germany
Germany
Valid from:
25.04.2019
Tel.: [phone]
Fax.: [phone]
Email: inf[email protected]om
www.burster.com
2865-BA9243EN-5970-041523

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Warranty disclaimer
All information in the present documentation was prepared and compiled with great care and reproduced
subject to effective control measures. No warranty is provided for freedom from errors. We reserve the
right to make technical changes. The present information as well as the corresponding technical data can
change without notice. Reproduction of any part of this documentation or its processing or revision using
electronic systems is prohibited without the manufacturer‘s prior written approval.
Components, devices and measured value sensors made by burster praezisionsmesstechnik
(hereinafter referred to as "product") are the results of targeted development and meticulous
research. As of the date of delivery, burster provides a warranty for the proper condition and
functioning of these products covering material and production defects for the period specified
in the warranty document accompanying the product. However, burster excludes guarantee or
warranty obligations as well as any liability beyond that for consequential damage caused by
improper use of the product, in particular the implied warranty of success in the market as well
as the suitability of the product for a particular purpose. Furthermore, burster assumes no
liability for direct, indirect or incidental damages as well as consequential or other damages
arising from the provision and use of the present documentation.

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Contents
1For your safety .......................................................................................................... 6
1.1 Symbols used in this manual ....................................................................................................... 6
1.1.1 Signal words .................................................................................................................... 6
1.1.2 Pictograms ....................................................................................................................... 6
2Introduction ............................................................................................................... 7
2.1 Intended use................................................................................................................................. 7
2.2 Customer service ......................................................................................................................... 8
2.2.1 Customer service department.......................................................................................... 8
2.2.2 Contact person................................................................................................................. 8
2.3 Download the test certificate ........................................................................................................ 8
2.4 Ambient conditions ....................................................................................................................... 8
2.4.1 Storage conditions ........................................................................................................... 8
2.4.2 Operating conditions ........................................................................................................ 9
2.4.3 Restrictions on use .......................................................................................................... 9
2.4.4 Cleaning ........................................................................................................................... 9
2.5 Personnel ..................................................................................................................................... 9
2.6 Contents of pack ........................................................................................................................ 10
2.7 Unpacking .................................................................................................................................. 10
2.8 Warranty..................................................................................................................................... 10
2.9 Conversions and modifications .................................................................................................. 10
3Device design .......................................................................................................... 11
3.1 Rail mounting module................................................................................................................. 11
3.2 IP65 version ............................................................................................................................... 11
3.3 Voltage supply............................................................................................................................ 11
4Controls and connections ...................................................................................... 12
4.1 Controls (Mounting rail version) ................................................................................................. 12
4.1.1 Front panel ..................................................................................................................... 12
4.1.2 Rear panel ..................................................................................................................... 12
4.1.3 Meaning of the DIP switches ......................................................................................... 13
4.1.3.1. Mounting rail version ....................................................................................... 13
4.1.3.2. IP 65 version.................................................................................................... 14
4.2 Terminal assignment .................................................................................................................. 15
4.2.1 Terminal assignment IP 65-version ............................................................................... 15
4.3 Grounding and potential binding ................................................................................................ 16
4.4Installation .................................................................................................................................. 16

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5Using the instrument for the first time ................................................................... 16
6Setting the amplifier ................................................................................................17
6.1 Sensor excitation........................................................................................................................ 17
6.2 Zero Point................................................................................................................................... 17
6.3 Gain setting ................................................................................................................................ 18
6.3.1 Coarse adjustment......................................................................................................... 18
6.3.2 Fine adjustment ............................................................................................................. 19
6.3.3 Calculating the gain ....................................................................................................... 19
6.4 Input reference point .................................................................................................................. 20
6.5 Cutoff frequency......................................................................................................................... 20
6.6 Calibration source ...................................................................................................................... 20
6.7 Calibration shunt ........................................................................................................................ 21
6.7.1 Adjustment and calibration ............................................................................................ 22
6.7.1.1. Adjustment with a physical variable ................................................................ 22
6.7.1.2. Adjustment with a high-precision voltage source (also refer to Chapter 6.6) 22
6.7.1.3. Adjustment with a strain-gauge simulator ....................................................... 22
6.8 Current output ............................................................................................................................ 24
7Technical Data ......................................................................................................... 25
7.1 Electromagnetic compatibility .................................................................................................... 25
7.1.1Interference immunity .................................................................................................... 25
7.1.2 Interference emission .................................................................................................... 25
8Accessories ............................................................................................................. 26
9Disposal.................................................................................................................... 27
10 Appendix .................................................................................................................. 28
10.1 Sampleconnections.................................................................................................................... 28
10.1.1 Strain-gauge full-bridge sensors.................................................................................... 28
10.1.2 Potentiometric sensors .................................................................................................. 28
10.1.3 DC/DC sensors .............................................................................................................. 29
10.2 Block schematic ......................................................................................................................... 30
10.3 Output of the sensor................................................................................................................... 31
10.4 Parallel connection of sensors ................................................................................................... 31
10.5 Tables for setting amplification stages....................................................................................... 32
10.5.1 Settings for strain-gauge sensors .................................................................................. 32
10.5.2 Settings for potentiometers and transmitters................................................................. 35

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1 For your safety
The following symbols on the 9243 amplifier module and in this operation manual warn of
hazards.
1.1 Symbols used in this manual
1.1.1 Signal words
The following signal words are used in the operation manual according to the specified hazard
classification.
DANGER
High degree of risk: indicates a hazardous situation which, if not avoided, will result in death or serious
injury.
WARNING
Moderate degree of risk: indicates a hazardous situation which, if not avoided, may result in death or
serious injury.
CAUTION
Low degree of risk: indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury.
NOTICE
Property damage to the equipment or the surroundings will result if the hazard is not avoided.
Note: It is important to heed these safety notices in order to ensure you handle the 9243 amplifier
module correctly.
IMPORTANT: Follow the information given in the operation manual.
1.1.2 Pictograms
Electric shock hazard
Electrostatic discharge. Do not touch!
Take precautionary measures against static discharge.
High Voltage! Danger to Life!
Warning about dangerous electrical voltages.

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Observe the advice for protecting the instrument.
2 Introduction
IMPORTANT: Read the operation manual carefully before using the equipment, and keep for future
reference.
2.1 Intended use
DANGER
•The 9243 amplifier module must not be used in hazardous
areas.
•The 9243 amplifier module is not intended as a substitute for
safety devices and protective equipment. Use safety devices and
protective equipment.
•The 9243 amplifier module amplifier is not suitable for medical
applications or where people are at risk.
•Do not connect voltages that are higher than those permitted in
the specification.
•Not suitable for safety-critical applications.
The 9243 amplifier module covers numerous areas of use. Designed for use with a variety of
analog sensors, the 9243 amplifier module can capture a huge range of output signals for
conditioning in fixed systems.
The intended use is defined to be:
•For industrial purposes
•For use in EMC-certified control cabinets
•For use solely with grounded DIN mounting rail
Industry-compatible connection and installation technologies make it easier for the user to adapt
and integrate the unit in existing mechanical and electrical environments. The outstanding
measurement quality also means it is ideal for use in both development and testing.
Typical applications of the 9243 amplifier module include:
•Production automation
•Integration of measurement data in a control environment
•Deployment in test and calibration laboratories
•Measuring and control equipment.

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2.2 Customer service
2.2.1 Customer service department
For repair inquiries, please telephone our Service department on [phone], or email:
[email protected] (Germany only). If you are outside Germany, you should contact your
burster agent (see also www.burster.com).
Please have the serial number to hand. The serial number is essential to establishing the
definite technical status of the instrument and providing help quickly. You will find the serial
number on the type plate of the 9243 amplifier module.
2.2.2 Contact person
If you have any questions relating to the 9243 amplifier module, please go directly to burster
praezisionsmesstechnik gmbh & co. kg, or if outside Germany, please contact your burster
agent (see also www.burster.com).
Head office
burster praezisionsmesstechnik gmbh & co kg
Talstr. 1 - 5
76593 Gernsbach Germany
Telephone: [phone]
Fax: [phone]
Email: [e-mail]
2.3 Download the test certificate
You have the option to download the test certificate for your 9243 amplifier module online. To
do this, you need to register at http://www.burster.com/en/registration/. You can then download
the test certificate directly by entering the serial number.
2.4 Ambient conditions
2.4.1 Storage conditions
The following requirements must be met when storing the 9243 amplifier module:
•Store at temperatures between -25°C and +70°C
•Store in a dry environment
•No condensation

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2.4.2 Operating conditions
The following requirements must be met when operating the 9243 amplifier module:
•Always operate indoors
•Maximum height above sea level 2000 m
•Operate at temperatures between 0 °C and 60 °C
•Humidity: 80% up to +31 °C, decreasing linearly above that temperature to 50% at
Tmax, no condensation
•Class of protection: 3
•Transient overvoltage category: CAT II
•Supply voltage 11 ... 30 VDC
Note: Avoid condensation forming after transportation or storage.
2.4.3 Restrictions on use
The the 9243 amplifier module does not pose a hazard if used within its specification and in
accordance with the safety regulations.
The manufacturer does not accept liability for any personal injury or property damage arising
from misinterpretation of measurement results.
Note: The the 9243 amplifier module is not intended as a substitute for safety devices and protective
equipment. Use safety devices and protective equipment.
2.4.4 Cleaning
DANGER
Electrical shock hazard
Disconnect the 9243 amplifier module from the power supply before cleaning.
Disconnect the 9243 amplifier module from the power supply and use a slightly damp cloth for
cleaning the unit.
CAUTION
Do not immerse the 9243 amplifier module in water or hold it under running water. Do
not use strong cleaning agents as these may damage the 9243 amplifier module. Use
a slightly damp cloth to clean the 9243 amplifier module.
2.5 Personnel
Personnel must be familiar with the relevant regulations. They must follow these regulations.
Only trained personnel who are familiar with the applicable safety regulations are permitted to
operate the 9243 amplifier module.
burster is happy to provide your operating personnel with training on the 9243 amplifier module.
To find out more, please look at our range of services at www.burster.com.

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2.6 Contents of pack
The following components are supplied:
•9243 amplifier module
•Operating manual
•Warranty document
•Test certificate
2.7 Unpacking
DANGER
Electrical shock hazard
Never connect the 9243 amplifier module if it shows signs of damage incurred in
transit. Only ever use the 9243 amplifier module if under the conditions specified in
this operation manual.
Inspect the 9243 amplifier module if for damage. If you suspect that the unit has been damaged
during shipping, notify the delivery company within 72 hours.
The 9243 amplifier module if should be shipped only in its original packaging or in packaging
capable of providing an equivalent degree of protection.
2.8 Warranty
burster praezisionsmesstechnik gmbh & co kg provides a manufacturer's warranty for a period
of 24 months after delivery.
Any repairs required during this time will be made without charge. This does not include
damage arising from improper use.
Please note the following when sending the 9243 amplifier module if in for repair:
•If there is a problem with the 9243 amplifier module, please attach a note to the
9243 amplifier module case summarizing the fault.
•Technical specifications subject to change at any time without notice. We also
state explicitly that we do not accept liability for consequential damage.
•The 9243 amplifier module must always be dispatched in suitable packaging.
2.9 Conversions and modifications
Note: The warranty shall be deemed void immediately if you open or dismantle 9243 amplifier module
during the warranty period.
The 9243 amplifier module does not contain any parts that are intended to be serviced by the
user. Only the manufacturer's own qualified personnel are permitted to open the 9243 amplifier
module.
It is not permitted to make any changes to the 9243 amplifier module without the written
agreement of burster praezisionsmesstechnik gmbh & co kg. burster praezisionsmesstechnik
gmbh & co kg does not accept liability for damages or injury if this condition is disregarded.

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3 Device design
3.1 Rail mounting module
•Dimensions [W x H x D]: 45 x 75 x 108 [mm]
•Weight: approx. 250 g
•Material: polyamide 6.6, color: green
•Connections: terminal connector, 2 x 8 terminals
•Assembly: on DIN EN 50 022 mount rails
•Protection class: IP20
3.2 IP65 version
•Dimensions [W x H x D]: 160 x 100 x 65 [mm]
•Weight: approx. 880 g
•Material: cast-aluminium
•Connection: terminal connector, 2 x 8 terminals
•Assembly: screw mounting
•Protection class: IP65
•Screen distance: 143 x 63 [mm]
shaft screw ø 4.7 mm; screw ø 8.5 mm
3.3 Voltage supply
The device can be operated on AC as well as DC without the need for conversion.
Voltage supply:
•DC: 20 – 36 V unregulated
•AC: 14 – 26 VAC / 45 … 65 Hz / 3 VA

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4 Controls and connections
4.1 Controls (Mounting rail version)
4.1.1 Front panel
The front panel contains two bores for accessing the potentiometers for fine adjustment of the
zeropoint and the gain.
4.1.2 Rear panel
The rear panel contains two bores for accessing the potentiometers for fine adjustment of the
sensor feed voltage and the 5-mV calibration source. The sensor feed voltage only requires
calibration by the customer after it has been switched from the factory default setting (5 V) to a
different value. In this case, the feed voltage can deviate by up to 0.2% from the setpoint value.

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4.1.3 Meaning of the DIP switches
4.1.3.1. Mounting rail version
IMPORTANT: The switch numbers indicated on the printed circuit board are valid.
Figure 1: DIP switches of the mounting rail version

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4.1.3.2. IP 65 version
Figure 2: DIP switches of the IP 65 version

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4.2 Terminal assignment
CAUTION
If possible, please use the 10 V-output (PIN6), even if you only adjust i.e. to 0-5 V!
If the adjustment is done at burster (order code 9243ABG), this output is always used
for adjustment, if not particularly an adjustment on the current output is requested.
Figure 3:
Front view of housing
4.2.1 Terminal assignment IP 65-version
Figure 4:
Terminal assignment IP 65-version
Terminal
Function
Description
1
Input:
+ / ~ Supply voltage
2
Input:
- / ~Supply voltage
3
Output:
- Ground for the current
4
Output:
+ Current output
5
Output:
- Ground for the voltage
6
Output:
+ *10 V output
7
Output:
+ ±5 V monitor output
8
Output:
+ Calibration voltage 5 mV
9
Sensor:
- Sensor excitation, shield
10
Sensor:
- Sense
11
Sensor:
+ Sensor excitation
12
Sensor:
+ Sense
13
Sensor:
- Signal input
14
Sensor:
+ Signal input
15
Input:
Calibration shunt
16
Input:
Calibration shunt
Terminal
Function
Description
1
Input:
+ / ~ Supply voltage
2
Input:
- / ~Supply voltage
3
Output:
- Ground for the current output
4
Output:
+ Current output
5
Output:
- Ground for the voltage output
6
Output:
+ *10 V output
7
Output:
+ ±5 V monitor output
8
Output:
+ Calibration voltage 5 mV
9
Sensor:
- Sensor excitation, shield
10
Sensor:
- Sense
11
Sensor:
+ Sensor excitation
12
Sensor:
+ Sense
13
Sensor:
- Signal input
14
Sensor:
+ Signal input
15
Input:
Calibration shunt
16
Input:
Calibration shunt
Table
1: Terminal assignment
Table 2: Terminal assignment IP 65-version

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4.3 Grounding and potential binding
The 9243 amplifier module is ungrounded. The measurement inputs and outputs are isolated
from the supply voltage. Observe the potential binding between the sensor, cable shield and
downstream-connected electronics.
CAUTION
Only applicable to low rated voltages.
4.4 Installation
The mounting rail version is installed on a DIN EN mounting rail.
5 Using the instrument for the first time
DANGER
Electrical shock hazard
Never switch on the 9243 amplifier module if it shows signs of damage incurred in
transit. Only ever use the 9243 amplifier module under the conditions specified in this
operation manual.
DANGER
Electrical shock hazard
Turn on the operating voltage only once all sensors and loads have been connected.
Only connect the device to power supply units which are equipped with a safety transformer
complying with VDE 0551. Transmitters and other components connected in series with the
9243 amplifier module and powered from the mains should also be equipped with a safety
transformer complying with VDE 0511.

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6 Setting the amplifier
6.1 Sensor excitation
The sensor excitation voltage is asymmetric and referenced to ground. This also allows the
shield of the sensor cable to be connected to the negative sensor feed. The excitation voltage is
supplied via a 4-wire cable. This means that the voltage drops in the excitation lines can be
compensated, provided that appropriate sensors are in use and the probe lines are connected.
Only use 6-wire extension cables. The excitation lines and probe lines in the plug on a 4-wire
sensor are bridged in each case. In the case of a 6-wire sensor, the two sensor lines are
generally routed directly to the sensor element, so that bridging is not required.
The following excitation voltages can be set:
2.5 V, 5 V and 10 V
The default excitation voltage of 5 V can be used to operate most sensors. If 2.5 V or 10 V are
selected, the device needs to be readjusted. The sensor excitation voltage is short-circuit proof;
the maximum current consumption is 35 mA.
6.2 Zero Point
The zero point is adjusted with a potentiometer (zero) which can be accessed via a bore in the
front panel.
The adjustment range of the potentiometers can be set with 2 DIP switches. The switch settings
are described in Chapter 4.1.3 titled Meaning of the DIP switches Page 13. If both switches are
OFF, the adjustment range is smallest. If both switches are ON, the adjustment range is largest.
The switches can be set in any required combination, so that asymmetric adjustment ranges are
also possible.
The zero point is adjusted between the second and third amplification stages. If the adjustment
range is too small, the gain can be decreased in stage 2 and increased in stage 3. If the
adustment range is too large, the gain can be increased in stage 2 and decreased in stage 3
(refer to Chapter 10.2 titled Block schematic Page 30).

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6.3 Gain setting
6.3.1 Coarse adjustment
The gain is adjusted coarsely on three amplification stages (stages 1 - 3). DIP switches are
assigned to each amplification stage. Multiplying the gain factors set on each stage results in
the total coarse gain VTotal (also refer to Chapter 4.1.3.1 titled Mounting rail version Page 13).
Stage 1:
The gain can be set with DIP switches S1 – S2.
1
10
100
Only factors of 1, 10 and 100 are available here. It is not possible to combine these factors,
forexample, to obtain 110.
Stage 2:
The gain can be set with DIP switchesS3 – S10.
0.25
0.5
0.75
1
2
4
8
16
32
The gain factor here can be adjusted with a resolution of 0.25. The switches can be set in any
required combination to obtain, for example, a gain of 33.25.
Stage 3:
The gain here can be set with DIP switches S13 – S14.
2
4
6
8
Only factors of 2, 4, 6 and 8 are available here. Combinations are not possible.
The specified gain factors always refer to the 10-V output. The 5-V output and current output
are derived from the 10-V output and are available simultaneously. During subsequent fine
adjustment, only the output requiring the highest degree of precision is observed. The maximum
deviation at the remaining outputs is then 0.2%.
The switch settings are described in detail in Chapter 4.1.3 titled Meaning of the DIP switches
Page 13.

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The effective gain factor is approximately 50000.
This applies to the following general relationship.
This results in a minimum input signal of 0.2 mV for the module amplifier.
6.3.2 Fine adjustment
The gain is adjusted finely with the corresponding control on the front panel.
vTotal = vStage1 x vStage2 x vStage3 x (0.85 ... 1.11)*
*Fine adjustment
6.3.3 Calculating the gain
When calculating the gain, always use UO= 10 V as the reference, even if the 5-V output is
required.
Example:
Given: Strain-gauge sensor 350 ohms
Rated characteristic value 1.5 mV/V
Sensor excitation voltage 5 V
Required output voltage UOfrom the amplifier 10V
Wanted: Total gain v
The amplifier input voltage UI generated by the sensor is determined as follows:
UI= Rated characteristic value x reference excitation voltage
The relationship

 =


= 10 
7.5 
results in a gain factor v = 1333 in this example. The fine adjustment covers 85 -111% of the
gain adjusted coarsely in stages 1 - 3. In this example, the theoretical gain factor therefore lies
between v = 1133 (85% of 1333) and v = 1480 (111% of 1333).
Calculated total gain: v = 1333 (Stage 1 x Stage 2 x Stage 3)
Set total gain: v = 1300 (100 x 6.5 x 2)
Fine adjustment range: v = 1105 ... 1443 (0.85 x 1300 to 1.11 x 1300)
UI= Input signal
UO= Output signal
VTotal = Gain
=



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6.4 Input reference point
The signal amplifier acts as a differential amplifier. This means that the negative signal output is
not connected to ground. If a ground connection is required, it must be established externally.
6.5 Cutoff frequency
Using DIP switches, the cutoff frequency can be switched between 10 Hz and 1 Hz (-3dB). The
switch settings are described in Chapter 4.1.3 titled Meaning of the DIP switches Page 13.
6.6 Calibration source
The 9243 amplifier module is equipped with a 5.000 mV precision voltage source for the
purpose of calibration. This voltage source is referenced to ground and must be connected
externally when calibration is required.
Observe the following procedure for this:
1. Disconnect the sensor.
2. Connect pin 9 with pin 13 and pin 14.
3. Ajust “0 V” at the voltage output.
4. Connect pin 14 with pin 8.
5. Adjust the calculated voltage output.
Example:
Given: Strain gauge sensor 350 ohms
Rated characteristic value 1.5 mV/V
Sensor excitation voltage 5 V
Required output voltage UOfrom the amplifier 10 V
Wanted: The amplifier output voltage UOCAL to be set for a calibration excitation
voltage UICAL = 5.000 mV
1st step: Calculate and set the gain for 1.5 mV/V as described in the example in
Chapter 6.
When rough changes should be a repetition starting from step 2.
2nd step: Calculate the amplifier output UOCAL (to be fine-adjusted) when
UICAL = 5.000 mV is applied instead of the input voltage UIsupplied by
the sensor (7.5 mV in this example):
 =
× 

= 10 × 5 
7.5  = 6.666 
UI= Output of the sensor x excitation voltage
UO= Output of the amplifier with UI
UICAL = 5.000 mV calibration voltage
UOCAL = Output of the amplifier with UICAL
In this example, a voltage of 6.666V needs to be set at the amplifier output.