HBM ME30 Manual de usuario

A0261-4.0 en/de/fr

600 Hz Measuring

Amplifier

ME30 / ME30S8

Operating manual

Bedienungsanleitung

600-Hz-TF-

Messverstärker

English Page 3 −22...............................................

Deutsch Seite 23 −42..............................................

Français Page 43 −63..............................................

ME30/ME30S8

HBM

A0261−4.0 en/de/fr

Contents Page

Safety instructions 4.............................................

1 Measuring Amplifiers on Eurocards ME30/ME30S8 8...........

2 Electrical Connection 9.......................................

2.1 Transducer Connection 9................................

2.2 Supply Voltage 10........................................

2.3 Output 10...............................................

2.4 Supply Voltage for Additional Units 10......................

2.5 Pin Assignment 11.......................................

3 Putting into Operation 12......................................

3.1 Select Measuring Range 12...............................

3.2 Bridge Zero Balancing 12.................................

3.3 MR Fine Adjustment 12...................................

4 Individual Settings 14.........................................

4.1 Operational Setting 14....................................

4.2 Setting the Measuring Range 14...........................

4.3 External Fine Balancing of the MR1 15......................

4.4 Bridge Fine Balancing 16.................................

4.5 Calibration signal 16......................................

4.6 Measuring Frequency Range / Cut-off Frequency fco 17......

4.7 Synchronization 17.......................................

5 Options 18...................................................

5.1 Stabilized Power Supply 18...............................

5.2 DC-DC Converter 18.....................................

5.3 Current Output Module 19.................................

5.4 Safety Barriers for use in Hazardous Areas 19...............

5.5 Additional Units 19.......................................

6 General Notes 20.............................................

6.1 Disturbances 20.........................................

7 Component Layout 21.........................................

4ME30/ME30S8

HBM A0261−4.0 en/de/fr

Safety instructions

In order to ensure sufficient immunity from disturbance only use Greenline

shielding (see HBM’s special publication ”Greenline” Screening Concept, elec-

tromagnetic compatibility of measuring cable, downloadable from the Internet

at http://www.hbm.com/Greenline).

The connection lines’ ( 50 V) minimum insulation strength must be

350 V(AC).

Appropriate use

The ME30/ME30S8 with the connected transducers may be used for mea-

surement and directly related control and regulation tasks, only. Any other use

is not appropriate.

To ensure safe operation, the ME30/ME30S8 may only be used according to

the specifications given in this manual. When using the transducer, the legal

and safety regulations for the respective application must also be observed.

The same applies if accessories are used.

General dangers in the case of non-observance of the safety instruc-

tions

The ME30/ME30S8 complies with the state of the art and is operationally reli-

able. If the device is used and operated inappropriately by untrained person-

nel, residual dangers might develop.

Any person charged with device installation, operation, maintenance or repair

must in any case have read and understood the operating manual and the

safety instructions, in particular.

Conditions on site

Protect the device from moisture or atmospheric influences such as rain,

snow, etc.

ME30/ME30S8

HBM

A0261−4.0 en/de/fr

Maintenance and cleaning

The Clip Electronic are maintenance-free. Please note the following points

when cleaning the front panel:

Remove the mains plug from the socket before cleaning.

Clean the front panel with a soft, slightly damp (not wet!) cloth. Never use

solvents, since they may damage the labelling on the front panel.

When cleaning, please ensure that no liquid finds its way into the device or

onto the contacts.

Residual dangers

The ME30/ME30S8 scope of performance and supply covers part of the mea-

suring-technology, only. The plant designer/constructor/operator must in addi-

tion design, realise and take responsibility for the measuring-system’s safety

such that potential residual dangers are minimized. The respective regulations

must in any case be observed. Residual dangers regarding the measuring

system must be specified explicitly.

Markings used in this document:

The marking below warns of a potentially dangerous situation in which failure

to comply with safety requirements can result in death or serious physical in-

jury.

Safety instructions have the following format:

Signal word

Consequences of non−compliance

Preventive measures

−Warning sign: Alerts of a hazard

−Signal word: Designates the degree or level of the hazard

(see table below)

−Type of hazard: Designates the type of source of hazard

−Consequences: Describes the consequences of non−compliance

−Prevention: Indicates how to avoid the hazard

6ME30/ME30S8

HBM A0261−4.0 en/de/fr

Hazard classes per ANSI

CAUTION

NOTICE

Warning sign, signal word Meaning

Designates a potentially hazardous situation

which, if not avoided, could result in death or

serious injury.

Designates a potentially hazardous situation

which, if not avoided, may result in minor or

moderate injury.

Property damage: May result in damage to the

product or its environment.

WARNING

On the module

Meaning: Take into account the data in the operating instructions

More symbols used in this manual

To enable you to use your product in a fast and safe way, the manual uses

standardized symbols and terminology that are explained below.

Symbol:

Meaning: CE mark

The CE mark enables the manufacturer to guarantee that the product com-

plies with the requirements of the relevant EC directives (see Declaration of

Conformity at http://www.hbm.com/HBMdoc).

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.

ME30/ME30S8

HBM

A0261−4.0 en/de/fr

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 pro-

duct.

TIP

Information / Instructions for use

Instructions for use or other valuable information for the user.

Reconstruction and modifications

HBM’s express consent is required for modifications regarding the ME10

construction and safety. HBM does not take responsibility for damage result-

ing from unauthorized modifications.

In particular, repair and soldering works on the boards are prohibited. If com-

plete componentry is replaced use original HBM components, only.

Qualified personnel

The device may be used by qualified personnel, only; the technical data and

the special safety regulations must in any case be observed. When using the

device, the legal and safety regulations for the respective application must

also be observed. The same applies if accessories are used.

Qualified personnel means: personnel familiar with the installation, mounting,

start-up and operation of the product, and trained according to their job.

Maintenance and repair work on an open device with the power on should

only be undertaken by trained personnel who are aware of the above-men-

tioned dangers.

8ME30/ME30S8

HBM A0261−4.0 en/de/fr

1 Measuring Amplifiers on Eurocards ME30/ME30S8

The Eurocards ME30/ME30S8 is a 600 Hz carrier frequency amplifiers for

strain gauge transducers. An aluminium front panel (4 divs. wide) is delivered

as standard. Aplasticcs handle can be mounted instead of it if ordered sepa-

rately.

All plug-in cards are delivered without housing without power supply unit so

that a 19” rack frame can be set up as required. Owing to the narrow width of

the plug-in cards (4 divs = 20.32 mm) up to 21 cards can be inserted into a

19” rack. The dimensions and connecting details correspond to the IEC stan-

dards 48D and 297.

All controls are accessible from the front.

Individual adjustments are described in chapter four; factory settings are spe-

cified on the back of the Eurocard.

The ME30S8 Eurocard is an ME30 card with integrated DC/DC-converter

(2−9278.0317) and 1−EM002 output stage module.

ME30/ME30S8

HBM

A0261−4.0 en/de/fr

2 Electrical Connection

2.1 Transducer Connection

Strain gauge transducers are connected by means of 6-wire circuits.

With transducers in 4-wire technology the sensing leads are not needed. In

this case the contacts 32a+c and 28a+c on the connector must be linked.

For cable lengths >50 m, one resistor with half the bridge resistance value

(BR/2) must be solder into the transducer in place of each feedback bridge. If

the transducers are calibrated in six−wire connection, the resistors must be

solder directly into the sensor circuit.

screen pins 31a+c..................

measuring signal (−) pin 30a......

sensing line to 32a (−) pin 32c.....

bridge supply voltage (−) pin 32a..

measuring signal (+) pin 30c......

bridge supply voltage (+) pin 28a..

sensing line to 28c (+) pin 28c.....

contact

(alternatively 29a+c)

Fig. 2.1: Bridge connection

The required bridge excitation voltage set by the factory is 5 V(symmetrical

about ground). It can be switched to 2.5 V by switch S25.

UBBridge resistance Switch S25

2.5 V RB60...4000 

5 V

(factory settings) RB110...4000 

The safety barriers SD01A must be wired into the connecting lines (see chap-

ter 5.4) for transducers in EEx(i) design.

10 ME30/ME30S8

HBM A0261−4.0 en/de/fr

2.2 Supply Voltage

a) stabilized double-pole supply voltage

+14.5...+15.5 V (max.70 mA) .........

−14.5...−15.5 V (max.65 mA) ..........

operating voltage zero ...............

The ripple on the supply voltage should not exceed 0.1 V peak-to−peak. The

supply connections are internally protected against reverse polarity. Single

sided connection of the supply voltage should be avoided. The supply voltage

should be kept as low as possible within the permissible range of

"15.6..."25 V in order to maintain the dissipation at a low value.

b) unstabilized double-pole supply voltage

If a stabilized voltage is not available, the amplifier can be operated by means

of a stabilizer(unstabilized supply) or a DC-DC converter (single-pole supply,

battery) (see chapter 5.1 and 5.2).

2.3 Output

output voltage: "10 V; RL5 k 

operating voltage zero ...............

The output is provided for the connection of a display and/or recorders.

A current output is possible optionally (see chapter 5.3).

2.4 Supply Voltage for Additional Units

Stabilized voltages are available for current supply of additional function units.

+14.5 V...+15.5 V; <50 mA ............

−14.5 V...−15.5 V; <50 mA ...........

operating voltage zero ...............

pin15a

pin16a

pin19c

pin18c

pin 20a



pin6c

pin 7a

pin15c

−

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