Bk-precision 4040B - Manual Uživatelský manuál Strana 1

Model: 4014B, 4040B DDS Function Generator USER MANUAL

10 4.3.3 Response Messages ... 51 4.4 Instrument Identification ...51 4.5 Instrument Reset ...

11 1 1 Introduction 1.1 Introduction This manual contains information required to operate the B&K Precision model 4014B and 4040B DDS F

12 Resolution *6 digits or 10 mHz Output Characteristics Amplitude Range 10 mVp-p to 10 Vp-p (into 50 Ω) 20 mVp-p to 20 Vp-p (open circuit) Resolut

13 1 cycle is generated to programmed parameters. Frequency of waveform cycle is limited to 1 MHz. Gate - Same as triggered mode, except wavefo

14 DC to > 20 kHz minimum bandwidth Counter Characteristics Range 50 Hz to 25 MHz Resolution Auto ranging, up to 8 digits Accuracy ± 0.02 % ± 2

15 1 For current up-to-date product information, please visit www.bkprecision.com

16 2 Installation 2.1 Introduction This section contains installation information, power requirements, initial inspection and signal connectio

17 1 2.4 Instrument Mounting The 4014B and 4040B Function Generators are intended for bench use. The instrument includes a front feet tilt me

18 2.6 Fuse Replacement There is a 1A, 250V rated slow blow fuse at the AC input. Should the fuse ever get blown, follow the steps below to repl

19 1 WARNING TO AVOID PERSONAL INJURY DUE TO SHOCK, THE THIRD WIRE EARTH GROUND MUST BE CONTINUOUS TO THE POWER OUTLET. BE

2 Safety Summary The following safety precautions apply to both operating and maintenance personnel and must be observed during all phases of opera

20 3 Operating Instructions 3.1 General Description This section describes the displays, controls and connectors of the function generator. Al

21 1 4 Waveform Buttons Select Sine, Ramp/Triangle, Square waveform shape 5 Numeric Keypad Enter numeric values for parameters 6 Units Keys Sele

22 or mode display selected. 3.3 Front Panel Controls The front-panel controls select, display, and change parameter, function, and mode settin

23 1 Sync Out Connector Use this connector to output a positive TTL sync pulse generated at each waveform cycle. Modulation In Connector 5V

24 If there is a DC voltage across the output load, use a coupling capacitor in series with the load. The time constant of the coupling capacitor a

25 1 Sine Menu F1: Frequency – Selects and displays the frequency. Change the frequency setting using the cursor keys, rotary knob, or numerica

26 (Vp-p)/2 + |offset| <= 5 volts F4: Symmetry – When the Square or Triangle waveforms are selected, the SYMMETRY (duty cycle) parameter is a

27 1 To select the output mode, press MODE, then press the function key that corresponds to the desired Mode menu option, as shown: Mode Menu

28 After selecting the TRIGGERED, GATED, or BURST menu, the trigger source menu is available: Trigger Menu F1: Manual – Selects manual as the tr

29 1 each trigger. The N value can be changed from 2 to 65,535. Burst Menu 3.6.3 UTILITY Key

3 personnel. Disconnect the power cord before removing the instrument covers and replacing components. Under certain conditions, even with the po

30 Utility Menu F1: Recall – Recalls a previously stored front-panel setup from the selected buffer. Change the buffer number by using the rotary

31 1 Counter Screen Press F1 - Off to turn off the counter. 3.6.4 SWEEP Key Selects the Sweep Mode and allows entering of sweep parameters

32 Sweep Menu F1: Off – Disables the sweep function. F2: Linear – Selects the Linear sweep shape. F3: Logarithmic – Selects the Logarithmic s

33 1 Set Sweep Menu 3.6.5 MODULATION Key Selects the AM or FM Modulation mode. To select the output mode, press MODUL key, then press the

34 Modulation Menu Press F2 to select AM menu: AM Menu

35 1 F1: % - Defines the modulation depth (from 0 to 100%) F2: Frequency - Selects the modulation frequency, from 0.1 Hz to 20.0

36 F1: Deviation - Defines the FM deviation frequency. F2: Frequency - Selects the modulation frequency, from 0.1 Hz to 20.00 kHz. F3: Shape - Se

37 1 3.9 Rotary Input Knob Use this knob to increase and decrease numeric values. The cursor indicates the low-order position of the displayed

38 Table 1 – Power-on Default Settings Key Function Value Description Function Sine Output Waveform Frequency 1.0000 kHz Waveform Frequency Amplitu

39 1 Table 2 – Error Messages Message Text Description Out of range The set value is out of the instrument’s limits. Setting conflict Settings c

4 WARNING: To avoid electrical shock hazard, disconnect power cord before removing covers. Refer servicing to qualified personnel. CAUTION:

40 * Selecting the waveform * Setting the output frequency * Setting the output amplitude and offset 3.13.2 Setting the Output To

41 1 Storing Setups To store the front-panel setup: 1. Press UTILITY to display the menu. 2. Press F2:Store to select the Store mode. 3. Us

4 Programming 4.1 Overview This section provides detailed information on programming the generator via the USB (virtual COM) interface. 4.

43 4. Click the “Close” button to stop the automatic search of the driver from Windows Update. 5. Now, go to Device Manager on the computer (Ope

44 7. In the following window, select “Browse my computer for driver software”, and following this, select “Let me pick from a list of device dri

45 downloaded from the website labeled “atm6124_cdc.inf”. 10. Now click “OK”. It will show in the window under Model “AT91 USB to Serial Converter

46 For Windows XP: 1. The USB driver is included in the CD that comes with the instrument. You can also go to www.bkprecision.com and browse thi

47 downloaded from the website labeled “atm6124_cdc.inf”. Select it and click “OK”. 9. The following screen will appear. 10. Click “Next”, and a

48 11. Click on “Continue Anyway” and the driver will now install. 12. The driver will now install. Once finished, under “Device Manager” (This c

49 4.1.2 USB (Virtual COM) Settings The USB (virtual COM) interface settings for the communication port are as follows: BAUDRATE: 115200 PARIT

5 Compliance Statements Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and other European countries with s

50 4.3 Message Exchange Protocol The device decodes messages using the Message Exchange Protocol similar to the one defined in IEEE 488.2. The

51 4.3.3 Response Messages The device sends a Response Message in response to a valid query. All queries return a single Response Message Unit

52 or query. The Program Message is terminated by the Program Message Terminator. The Program Message Terminator consists of optional white space

53 freq 1000 freq 1e3 b) Program Header Separator The Program Header Separator is used to separate the program header from the p

54 ON or OFF or numeric. A numeric value is rounded to an integer. A non-zero result is interpreted as 1 (ON), and a zero result as 0 (OFF).

55 MAXimum: sets the parameter to its maximum value. MINimum: sets the parameter to its minimum value. For example, to set the fr

56 tells the device to return the minimum or maximum value to which the parameter may currently be set. For example, FREQ? MAX will ret

57 length 10. The error queue is read with the following query: ERR? The first error in the queue is returned, and the queue is advanced.

58 -101 Invalid character -102 Syntax error -103 Invalid separator -104 Data type error -108 Parameter

59 -148 Character data not allowed -158 String data not allowed -161 Invalid block data An error was found i

6 Safety Symbols Refer to the user manual for warning information to avoid hazard or personal injury and prevent damage to instrument. Chassis (

60 -223 Too much data. The arbitrary waveform memory limit has been exceeded. -224 Illegal parameter value.

61 Data were sent before the entire response of a previous query was read. -420 Query UNTERMINATED. An attempt was made to rea

62 Manufacturer name Model name Serial number (0 if not relevant) Version number Command Type: Common Query Syntax:

63 Type: Common Command Syntax: *TRG 4.8.4 Stored Settings Commands *RCL - Recall ins

64 Range: 0 to 9 (4014B) / 0 to 19 (4040B). Non integer values are rounded before execution Type: Common Command

65 restarting the instrument before continuing again with remote operations. 4.9.1 Default Subsystem The Source Subsystem controls the frequenc

66 FREQuency <frequency> The frequency command controls the frequency of the output waveform. Arguments

67 1) The MIN and MAX arguments refer to currently settable minimum or maximum. 2) FIXed is alias for CW. AMPLitude <p-p amplitude> The

68 1) The MAXimum amplitude is dependent on the offset. 2) The MAX and MIN arguments should not be used in a program message containing an OFFSe

69 Response: NR2 Considerations: 1) The MAXimum offset is dependent on the amplitude. 2) The MAX and MIN argum

7 CE Declaration of Conformity The function generators meet the requirements of 2006/95/EC Low Voltage Directive and 2004/108/EC Electromagnet Com

70 Range: 1 to 99 Rounding: To integer Command Type: Setting or Query

71 MODULation OFF MODULation EXT Query Syntax:

72 This command sets the AM and FM modulating waveform frequency Arguments Type: Numeric.

73 Syntax: MODSHape<ws><SIN|TRI|SQU> Examples: MODSHape SIN MODSHape TRI Query

74 SWEep This command activates or deactivates sweep: Arguments Type: Boolean

75 Examples: SWRAte 50MS Query Syntax: SWRAte?[<ws>MINimum|MAXimum]

76 Arguments Type: Numeric. Units: MHz, KHz, Hz (default)

77 Command Type: Setting or Query Setting Syntax: MODE<ws><CONT|TRIG|GATE|BU

78 This command is used to set the number of cycles to be output in the BURST mode. It is not a standard SCPI command. Arguments

79 Rounding: to 4 digits Command Type: Setting or Query Setting Sy

8 1 INTRODUCTION ... 11 1.1 Introduction ...11 1.2 Description ...

80 SERVICE INFORMATION Warranty Service: Please go the support and service section on our website www.bkprecision.com to obtain a RMA #. Return th

81 LIMITED THREE-YEAR WARRANTY B&K Precision Corp. warrants to the original purchaser that its products and the component parts thereof, will

Index Amplitude, 12, 25, 38 cursor, 36 duty cycle, 26 Errors, 38 factory default, 37 frequency, 25 Impedance Matching, 24 LCD, 21 Linear, 32 Offset,

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9 1 3.6.4 SWEEP Key ......... 31 3.6.5 MODULATION Key ....... 33 3.7 ON Key ......