HBM MGA II User manual

B0599-3.7 en
Amplifier System
MGA II
with Digital Display
DA12
Operating Manual

HBM

3
MGA II
Contents
Safety instructions 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A Introduction A−1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 Notes on documentation A−2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 MGA II housings A−4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Structure of the MGA II device A−7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Control elements for the digital indicator A−9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Control elements for the amplifier plug−in units A−10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Component location diagrams, connection boards A−11. . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4 Component location diagrams ME10, ME30, ME50, ME50S6 A−14. . . . . . . . . . . . . . . . . .
4 Conditions on site A−15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Maintenance and cleaning A−16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B Connections B−1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 Mains connection B−2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Shielding design B−3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Connecting transducers B−4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 Connect strain−gage full bridge B−5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Connect inductive half bridge B−6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Intrinsically safe transducer port B−7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3.1 Electrical connection to AP05 B−8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Outputs and remotes B−10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Connection boards AP01, AP03, AP05, AP11 B−10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Synchronisation (ME30 and ME50 only) B−12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C Commissioning C−1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 Commissioning C−2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Devices in the desktop housing and module frame C−3. . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Switching on C−4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4
MGA II
D Balancing/Range D−1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 Balancing D−2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Excitation voltage D−2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Zero balancing D−4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Setting a range D−5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Calibrating the measuring chain D−9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Zero operating mode D−11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Measurement frequency range /Cut−off frequency D−12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E Index E−1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5
MGA II
Safety instructions
Use in accordance with the regulations
The amplifier system is to be used exclusively for measurement tasks and directly related
control tasks. Use for any purpose other than the above shall be deemed to be not in accor-
dance with the regulations.
To ensure safe operation, the device may only be operated in accordance with the informa-
tion given in the User Manual. It is also essential to comply with the legal and safety require-
ments for the application concerned during use. The same applies to the use of accessories.
General dangers of failing to follow the safety instructions
The amplifier system is a state−of−the−art device and is safe to operate. The device may
give rise to further dangers if it is inappropriately installed and operated by untrained person-
nel.
Any person instructed to carry out installation, commissioning, maintenance or repair of the
device must have read and understood the User Manual and in particular the technical
safety instructions.
Residual dangers
The scope of supply and list of components provided with the amplifier system cover only
part of the scope of measurement technology. In addition, equipment planners, installers and
operators should plan, implement and respond to the safety engineering considerations of
measurement technology in such a way as to minimise residual dangers. Prevailing regula-
tions must be complied with at all times. There must be reference to the residual dangers
connected with measurement technology.
After setting up and password protected activities, care must be taken to ensure that any
control units that may be connected remain in a safe and secure state until the switching
behaviour of the amplifier system has been checked.

6
MGA II
Warnzeichen und Gefahrensymbole
Wichtige Hinweise für Ihre Sicherheit sind besonders gekennzeichnet. Beachten
Sie diese Hinweise unbedingt, um Unfälle und Sachschäden zu vermeiden.
Sicherheitshinweise sind wie folgt aufgebaut:
SIGNALWORT
Art der Gefahr
Folgen bei Nichtbeachtung
Gefahrenabwehr
Warnzeichen: macht auf die Gefahr aufmerksam
Signalwort: gibt die Schwere der Gefahr an (siehe folgende Tabelle)
Art der Gefahr: benennt die Art oder Quelle der Gefahr
Folgen: beschreibt die Folgen bei Nichtbeachtung
Abwehr: gibt an, wie man die Gefahr vermeidet/umgeht

7
MGA II
Gefahrenklassen nach ANSI
VORSICHT
HINWEIS
Warnzeichen, Signalwort Bedeutung
kennzeichnet eine gefährliche Situation, in der
Tod oder schwere Körperverletzung eintreten
können, wenn sie nicht vermieden wird
kennzeichnet eine gefährliche Situation, in der
leichte bis mittelschwere Körperverletzungen
eintreten können, wenn sie nicht vermieden wird.
Sachschäden: Das Produkt oder die Umgebung
können beschädigt werden.
Auf dem Modul
Bedeutung: Angaben in der Bedienungsanleitung berücksichtigen

8
MGA II
Information about CE labelling
The devices in the MGA II range carry the CE label and satisfy the requirements of EU
guideline 2004/108/EG “Elektromagnetic compatibility” and of the Low Voltage Directive
2006/95/EC admits listed harmonised European standards (EN).
The EU declarations of conformity according to the above mentioned EU guideline , Article
10, for the relevant authorities are available from:
HOTTINGER BALDWIN MESSTECHNIK GMBH
Im Tiefen See 45
D−64239 Darmstadt
The MGA II system devices are designed for industrial and domestic applications (domestic
area, business and trade, small scale enterprises) and fulfil the requirements for interference
immunity and for emisssion according to EN61326−1: 2006.
In addition to the details given in the operating instructions, the following information should
be taken into account when operating the device:
The connecting cable must be screened and the screen must be connected flat on the
connector housing.
If system components (e.g. plug-in cards) are supplied separately, then the operator must
ensure that they are used in a HBM system housing or in an equivalent housing.

9
MGA II
Working safely
Error messages should only be acknowledged if the cause of the error is removed and no
further danger exists.
The instrument complies with the safety requirements of DIN EN 61010, Part 1 (VDE 0411,
Part 1); Protection Class I.
To ensure adequate immunity from interference, use only Greenline shielded ducting (see
HBM offprint ”Greenline shielding design, EMC-compliant measuring cable; downloadable
from the Internet at http://www.hbm.com/Greenline).
Conversions and modifications
The measuring amplifier system must not be modified from the design or safety engineering
point of view except with our express agreement. Any modification shall exclude all liability
on our part for any damage resulting therefrom.
In particular, any repair or soldering work on motherboards is prohibited. When exchanging
any modules, only original HBM parts must be used.
Qualified personnel
means persons entrusted with the installation, assembly, commissioning and operation of
the product who possess the appropriate qualifications for their function.
This instrument is only to be installed and used by qualified personnel strictly in accordance
with the technical data and with the safety rules and regulations which follow.
It is also essential to comply with the appropriate legal and safety regulations for the applica-
tion concerned during use. The same applies to the use of accessories.
Maintenance and repair work on an open device with the power on must only be carried out
by trained personnel who are aware of the dangers involved.

10
MGA II
Safety requirements
Before commissioning, find out whether the mains voltage and current type specified on the
identification plate match the mains voltage and current type at the place of use, and whe-
ther the circuit being used is adequately protected.
Insert the mains plug only into a socket with a protection switch (Protection Class I). When
connecting electrical devices to low voltage: connect to extra−low safety voltage only (safety
transformer in accordance with DINVDE 0551/EN60742).
Before you open the device, make sure it is switched off; remove the mains plug from the
socket.
Never pull the mains plug from the socket by the mains cable.
Automation equipment and devices must be covered over in such a way that adequate pro-
tection or locking against unintentional actuation is provided (such as access checks, pass-
word protection, etc.). The MGAII must be positioned such that the mains connection can be
accessed and the device disconnected from the mains at any time.
Do not operate the device, if the mains cable is damaged.
If an amplifier channel is to be withdrawn, close off the plug−in unit with a blanking plate.
Built−in devices must only ever be operated whilst they are within the housing provided for
them.
The device complies with the safety requirements of DIN EN 61010-Part 1
(VDE 0411-Part 1); Protection Class I.

A−1
Introduction ÝNotes on documentation
MGA II
A Introduction

Introduction ÝNotes on documentationA−2
MGA II
1 Notes on documentation
This Manual contains all the information you need to operate the MGA II.
There are several guidelines available to you:
•Each Section starts with a list of its contents.
•The header tells you which Section or sub−section you are currently reading.
Example:
TransducerConnections B-15
Ý
•The page numbering is linked to capital letters which correspond to the Section headings.
Symbols used in this manual:
Symbol:
Meaning: CE mark
The CE mark enables the manufacturer to guarantee that the product complies with the
requirements of the relevant EC guidelines (the Declaration of Conformity can be found at
http://www.hbm.com/HBMdoc).

A−3
Introduction ÝNotes on documentation
MGA II
Symbol:
Meaning: Statutory marking requirements for waste disposal
National and local regulations regarding the protection of the environment and recycling of
raw materials require old equipment to be separated from regular domestic waste for
disposal.
For more detailed information on disposal, please contact the local authorities or the dealer
from whom you purchased the product.
IMPORTANT
Important information
Indicates important information about the product or about handling the product.
TIP
Information / Instructions for use
Instructions for use or other valuable information for the user.

Introduction ÝMGA II housingsA−4
MGA II
2 MGA II housings
The MGA II System is supplied in various housings:
Desktop housing Module frame Maximum number of channels Supply voltage
TG005 −6230 V (115 V)
TG007 −12 230 V (115 V)
TG011 −2230 V (115 V)
−ER007 12 230 V (115 V)
19” module frame ER007 (483x132.5x367)
Desktop housing TG005
(255x171x367)
Desktop housing TG007 (458x171x367)
Desktop housing TG011 (173x171x367)
(W x H x D in mm)

A−5
Introduction ÝMGA II housings
MGA II
All basic versions of the device consist of the following components:
•Housing
•DA12 digital indicators (indication limit 19.999)
•Amplifier plug−in units (ME10 ....)
•Connection boards (AP01, AP03 ... )
•Power pack
Accessories
•Kab133A adapter cable; 0.3 m, (D-connector to MS coupler socket)
•Kab251-05 synchronisation cable; 0.5 m, (2x 5−pin cable plugs)
•DB−25P connecting plug (25−pin cable plug with housing and fixing accessories for
output and control signals)
•DB−15P connecting plug (15−pin cable plug with housing and fixing accessories for
transducer port)
•D25-BNC/2 connecting plug; with BNC jack
•EM001 end−phase module, switchable to impressed voltage or impressed current; can be
plugged on to connection boards

Introduction ÝMGA II housingsA−6
MGA II
Protection class
The degree of protection given in the technical data indicates the suitability of the housings
for various ambient conditions and also the protection of persons against potential risks
when used. The letters IP (International Protection), which are always present in the
designation, are followed by two digits. These indicate which degree of protection a housing
offers against contact or foreign bodies (first digit) and moisture (second digit).
The MGA II System is available in housings with degree of protection IP20 (as per
DIN EN 60529).
IP 2 0
Code index Degree of protection against
contact and foreign bodies
Code index Degree of protection against water
2Protection against contact with
fingers, protection against foreign
bodies with ∅> 12 mm
0No water protection
6Complete protection against contact,
protection against penetration of dust
5Protection against water jet(nozzle)
from any angle

A−7
Introduction ÝStructure of the MGA II device
MGA II
3 Structure of the MGA II device
Power
pack
Connection boards (AP01, AP02, AP05, AP11) End−phase module (option)
Amplifier plug−in units
(ME10, ME30, ME50, ME50S6)
DA12 digital indicator
Fig. 3.1: Overall structure of the MGA II device

Introduction ÝStructure of the MGA II deviceA−8
MGA II
Mains
connection
Synchronisation
Blanking
plates
Earthing switch
Chassis ground
AP01
Connection
boards
Transducer port
Output
SY02
Fig. 3.2: Rear of device (section)

A−9
Introduction ÝStructure of the MGA II device
MGA II
3.1 Control elements for the digital indicator
Mains
switch
Digital display
4 1/2−position 7-segment display
Channel−selector switch
Selection of the required
measurement channel
Fig. 3.3: DA12 digital indicator
The four−and−a−half−position digital indicator displays the nominal value at 10 V. This corresponds to the HBM
amplifiers’ output area.
The decimal point is selectable/disconnectable via plug−in jumpers St21/St22 on the DA12 motherboard.
Select decimal point:
SUnscrew DA12 front panel
SLift cap off the rotary switch and unscrew
rotary switch with socket spanner
SUnscrew motherboards; access to ST21/22 free
Remove jumper: no decimal point
Plug jumper in: Decimal point can be moved to any
position
DA12 motherboard
St21
St22
Dec.−point
position
1.V
10.V
100.V
1000.V
10000.V
Free
P21
S22
Display
Factory
setting

Introduction ÝStructure of the MGA II deviceA−10
MGA II
3.2 Control elements for the amplifier plug−in units
Amplifier type
ME10: DC amplifier for strain−gauge transducers
(measurement−frequency range 0...10 kHz)
ME30: 600 Hz carrier−frequency amplifier for strain gauge transducers
ME50: 4.8 kHz carrier−frequency amplifier for inductive transducers
ME50S6: 4.8 kHz carrier−frequency amplifier for strain−gauge transducers
Range fine
Fine balancing of the ranges
Operating mode
Selection of Zero/Measure/Calibrate operating modes
Zero balancing fine
Fine balancing of the zero point
Zero balancing coarse
Coarse balancing of the zero point
Polarity
Setting the polarity of the balance voltage
ME10
Fig. 3.4: Front panel, amplifier plug−in unit