Metrix GX 305 User manual

Function

Generators

r’

’

’s

Pôle Test et Mesure de CHAUVIN-ARNOUX

Parc des Glaisins - 6, avenue du Pré de Challes

F - 74940 ANNECY-LE-VIEUX

Tel. +33 (0)4.50.64.22.22 - Fax +33 (0)4.50.64.22.00

Contents

I - 2 Function Generators

Contents

General Instructions ............................................................................................................................................. 4

Introduction.........................................................................................................................................................4

Contents of the box............................................................................................................................................4

Precautions ........................................................................................................................................................4

Safety measures ................................................................................................................................................4

Guarantee ..........................................................................................................................................................5

Maintenance, metrological checks.....................................................................................................................5

Maintenance.......................................................................................................................................................5

rII

GX 305 and GX 310 Description...........................................................................................................................6

Presentation.......................................................................................................................................................6

Specifications..................................................................................................................................................6

Front Face..........................................................................................................................................................6

Back Face .......................................................................................................................................................... 7

Display................................................................................................................................................................7

Keys....................................................................................................................................................................9

Pressing keys for less than < 1s.....................................................................................................................9

Pressing keys for more than > 1s.................................................................................................................11

III

GX 320 Description ............................................................................................................................................. 12

Presentation.....................................................................................................................................................12

Specifications................................................................................................................................................12

Front Face........................................................................................................................................................12

Back Face ........................................................................................................................................................ 13

Display..............................................................................................................................................................13

Keys..................................................................................................................................................................16

Pressing keys for less than < 1s...................................................................................................................17

Pressing keys for more than > 1s.................................................................................................................18

Chapter IV

General commands............................................................................................................................................. 19

Commissioning.................................................................................................................................................19

in Normal mode ............................................................................................................................................19

in Version mode............................................................................................................................................19

in Calibration mode.......................................................................................................................................19

in Autotest mode...........................................................................................................................................19

Stop..................................................................................................................................................................20

Activating MAIN OUT.......................................................................................................................................20

Adjusting screen contrast.................................................................................................................................21

Selection of the instrument function.................................................................................................................21

Display of the software version ........................................................................................................................22

Automatic calibration........................................................................................................................................22

Instrument Autotest..........................................................................................................................................25

Saving a configuration (GX 320)......................................................................................................................28

Reloading a configuration (GX 320).................................................................................................................29

Clearing a configuration (GX 320)....................................................................................................................30

Generation of simple CONTinuous periodical signals....................................................................................31

Available output signals....................................................................................................................................31

Signal selection................................................................................................................................................31

Adjusting signal frequency ............................................................................................................................... 32

Adjusting signal duty cycle ...............................................................................................................................35

Adjusting signal amplitude................................................................................................................................35

Adjusting offset and DC level...........................................................................................................................36

Adjusting signal logical levels...........................................................................................................................36

Contents

Function Generators I - 3

SHIFT Shift Keying function (GX 320 only)....................................................................................................... 37

Connections .....................................................................................................................................................37

Selection of FSK mode.....................................................................................................................................37

Selection of PSK mode ....................................................................................................................................37

Selection of piloting source ..............................................................................................................................37

Adjusting jump frequencies (in FSK mode)......................................................................................................38

Adjusting jump phases (in PSK mode).............................................................................................................38

Other settings...................................................................................................................................................38

III

SWEEP Frequency scan function...................................................................................................................... 39

Connections .....................................................................................................................................................39

Selection of the sweep mode...........................................................................................................................39

Selection of the scan source............................................................................................................................40

Adjusting START / END frequencies ...............................................................................................................40

Adjusting scan period using an INTernal source..............................................................................................41

Other settings...................................................................................................................................................41

III

MODUL Modulation function (GX 320 only) ..................................................................................................... 42

Connections......................................................................................................................................................42

Selection of AM / FM mode..............................................................................................................................42

Selection of the modulation source..................................................................................................................43

Adjustment of the FM START / END frequencies............................................................................................43

Other settings...................................................................................................................................................43

IIX

FREQ Frequency meter function ....................................................................................................................... 44

Connections.....................................................................................................................................................44

SYNC Synchronisation function (GX 320 only)................................................................................................ 45

Connections.....................................................................................................................................................45

Selection of SLAVE / MASTER mode.............................................................................................................46

Adjusting dephasing........................................................................................................................................46

Activating signal generation (MASTER) ..........................................................................................................47

Other settings..................................................................................................................................................48

GATE function (GX 320 only) ............................................................................................................................. 50

Connections.....................................................................................................................................................50

Activation, Deactivation of GATE ....................................................................................................................50

III

BURST pulse burst function (GX 320 only)...................................................................................................... 51

Connections.....................................................................................................................................................51

Selection of the BURST source.......................................................................................................................51

Setting the number of pulses...........................................................................................................................52

Setting the generation time for INTernal source..............................................................................................52

Manual triggering in EXTernal source.............................................................................................................52

Other settings..................................................................................................................................................52

III

Remote programming (programmable device only)........................................................................................ 53

IIV

Technical specifications..................................................................................................................................... 56

General, Mechanical specifications............................................................................................................. 60, 61

Supplies................................................................................................................................................................ 62

General Instructions

I - 4 Function Generators

General Instructions

Introduction You have just purchased a GX 305, GX 310 or GX 320 Function Generator

and we appreciate your confidence.

Content of the box •the generator

•the safety notice

•the power supply cable

•the USB A/B cable for the programmable versions

•the ETHERNET cable for the GX 320E

•the CD-ROM containing:

the operating guide in 5 languages

the programming in 2 languages

the USB ‘CP210x USB to UART Bridge Controller’ Drivers

the LabView and LabWindows Drivers

the USBxPress application (USB port identification)

the GX320E-Admin (IP address programming)

Precautions To obtain the best service:

- read this notice carefully,

- respect the safety instructions.

Failure to respect the warnings and/or usage instructions may damage the

device and/or installations and may be dangerous for the user.

Safety measures This instrument complies with the NF EN 61010-1 - Ed. 2 (2001) safety

standard relating to the safety of electric measurement devices.

•It is designed for indoor use in an level 2 pollution environment at an altitude

of less than 2000 m, a temperature between 0°C and 40°C and a RH

(relative humidity) of less than 80% up to 40°C.

•The MAIN OUT, SWEEP OUT, TTL OUT outlets are referenced to earth and

protected from accidental voltages that are not in excess of 60 V DC or

40 V AC.

•The FREQ EXT entry can only be used for measurements on Category 1

installations and for voltages not exceeding 300 V in relation to the earth.

•Mains power supply: 115 V or 230 V depending on the model.

Definition of

installation

categories

CAT I: Category I corresponds to measurements on circuits that are not

directly connected to the network.

Example: protected electronic circuits

CAT II: Category II corresponds to measurements

on circuits that are directly

connected to low voltage installations.

Example: power supply for household appliances and portable tools

CAT III: Category III corresponds to measurements on the building

installation.

Example: power supply for industrial machinery or devices.

CAT IV: Category IV corresponds to measurements at the source of the low

voltage installation.

Example: power supply

General Instructions

Function Generators I - 5

General Instructions (contd.)

Symbols on the

instrument Warning: potential hazard, refer to the operating guide.

Selective waste sorting for recycling electric and electronic waste. In

compliance with the WEEE 2002/96/EC directive:

the device should not be considered as household waste.

Earth terminal

Alternating signal

Indication of a key double function when pressed for more than 1

second

USB symbol

Guarantee

This equipment is guaranteed for all manufacturing and parts defects in

compliance with the general terms and conditions which are available on request

During the warranty period (3 years), the instrument may only be repaired by the

manufacturer who reserves the right to make the decision to either repair or

replace all or part of the appliance. In the event of a return of the equipment to

the manufacturer the shipping charge from the customer to the manufacturer is

at the customer’s expense.

The guarantee does not apply in the following conditions:

•inappropriate use of the equipment or use with incompatible equipment

•one or more changes made to the equipment without prior explicit

authorisation from the manufacturer’s technical department

•an intervention is made on the instrument by a person not approved by the

manufacturer

•the adapting to a specific application that is not part of the definition of the

instrument or in the operating guide

•damage caused by a mechanical shock, by dropping the instrument or by

flooding.

Maintenance,

repairs, metrological

checks

The device includes no parts that can be replaced by the operator. All operations

must be carried out by competent approved personnel.

For checks and calibrations, contact one of our accredited metrology laboratories

(information and contact details available on request), at our Chauvin Arnoux

subsidiary or the branch in your country.

Cleaning No interventions are authorised inside the instrument.

- Turn the instrument off (remove the power supply cable).

- Clean using a damp cloth and soap.

- Never use abrasive products or solvents.

- Dry quickly using a dry cloth or an air blower at max. 80°C.

GX 305 and GX 310 Description

II - 6 Function Generators

GX 305 and GX 310

Description

Presentation

The GX 305 and GX 310 are alternating standard form wave generators, using the

DDS (Direct Digital Synthesis) technology. They may simulate the operation and

specifications of various electronic systems.

They also include a frequency meter input.

The GX 310P is a generator that can be programmed remotely via an USB link.

Specifications

- Wave form: sinusoidal, square, triangle, logical, TTL, continuous

- Wave frequency: GX 305 0.001 Hz to 5 MHz for the sinus and the square

0.001 Hz to 2 MHz for the triangle

GX 310 0.001 Hz to 10 MHz for the sinus and the square

0.001 Hz to 2 MHz for the triangle

- INT and EXT sweep: GX 305 adjustable from 0.001 Hz to 5 MHz

GX 310 adjustable from 0.001 Hz to 10 MHz

- EXT freq. meter : from 5 Hz to 100 MHz

Front face

Terminals

MAIN OUT

- Main output

VCF IN

- SWEEP input pilot signal in EXTernal source

SWEEP OUT

- Pilot output signal for INTernal SWEEP

TTL OUT

- TTL output

FREQ EXT

- Frequency meter input

Coding wheel

Back lit LCD display (124 x 43 mm)

ON /

STANDBY

GX 305 and GX 310 Description

Function Generators II - 7

GX 310 Description (contd.)

Back face

GX 305

GX 310

GX 310P

Display

USB type B connection

Network connection

Working voltage indicator

Network connection

Working voltage indicator

GX 305 and GX 310 Description

II - 8 Function Generators

GX 305 and GX 310 Description (contd.)

Wave selection:

•Sinusoidal

•square

•logic

•triangle

•continuous

Indication of the displayed frequency:

•Freq, FreqSTART or FreqEND

•Time (sweep interval)

Frequency display (digit height: 20 mm)

Underscores: Indication of the digit to which the wheel

increments apply during adjustment.

Unit of measure display

•degree

•MHz, kHz, Hz

•seconds

Function selection: current function indicator

•continuous

•sweep

•frequency

Duty cycle value display

Display of the amplitude value

Display of the offset value or the DC level

OFFSET display

DUTY display

AMPLITUDE display

Logical HIGH / LOW display

INTernal / EXTernal source selection

LINear / LOGarithmic sweep display

Sawtooth or triangle type sweep

Indication that the MODE key is assigned:

•to trigger the adjustment step when calibrating

•to trigger the selected test in Autotest

During calibration the is assigned to saving the parameters.

GX 305 and GX 310 Description

Function Generators II - 9

GX 305 and GX 310 Description (contd.)

Keys



The keys with the



symbol have a specific action when pressed for more

than 1 second.

•The white keys may have a backlight:

Appliance under power but not turned on

Appliance turned on

MAIN OUT

Key lit MAIN OUT exit activated

•The other keys can be:

unlit

keys not assigned to the wheel adjustment or

having no action

lit

the corresponding adjustment is assigned to the

wheel.

blinking

the corresponding adjustment can be assigned to

the wheel.



Each time the WAVEFORM or FUNCTION is changed the keys that can be

assigned to the wheel adjustment blink for 4 seconds; if no keys are used

at this time the frequency adjustment (Freq or Freq

START

) is assigned to the

wheel.

Keys pressed for

less than 1 second

Sinusoidal waveform selection

Selects square or logical waveform by successive pressing on the key

Triangular waveform selection or saves adjustments during calibration

Continuous waveform selection

MAIN OUT

Validation, or not, of the waveform on the MAIN OUT BNC

Adjustment of the duty cycle using the wheel (square, triangle)

Adjustment of the output signal amplitude using the wheel

•Offset adjustment using the wheel

•DC level adjustment if the continuous

waveform is selected.

GX 305 and 310 Description

II - 10 Function Generators

GX 305 and GX 310 Description (contd.)

Keys pressed for

less than 1 second

(contd.)

LOGIC LEVEL

LOGIC waveform selected:

Adjustment of the high or low signal level using the wheel

FUNCTION

FUNCTION keys:

Selection of one of the three available functions

SWEEP selection of the INTernal or EXTernal command signal

•SWEEP activated: selection of LIN or LOG sweep

•calibration: triggering of the selected adjustment step

•Autotest: run the selected test

SWEEP function activated in INT: assignment of the desired duration setting

for carrying out the sweep using the wheel.

Then, by pressing several times, selection of the digit on which to increment.

Division or multiplication by 10 of the current frequency value (decade change)

•Assignment of frequency adjustment to the wheel.

Then, by pressing several times, selection of the digit on which to

increment.

•SWEEP function activated: same functions with FreqSTART and FreqEND

frequencies.

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