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5790A

Operators Manual

6-24

•

AC (AC calibration)

•

ZC (DC zeros calibration)

•

WDC (Wideband 1 kHz calibration)

•

WAC (Wideband Flatness)

•

ALL (All of the above)

•

A group name from Appendix C, e.g., AC_2_2V

Response

(Integer) The temperature in oC.

CAL_ZERO

Executes dc zeros calibration. An error is generated if the 5790A cannot make a

measurement (ie, if the short is not applied to the input as specified in the normal

operation section of this SRS). (Overlapped command.)

Parameter

None

CLOCK

Sets the clock/calendar. If the second parameter is present, the rear panel

CALIBRATION STORE switch must be in the "ENABLE" position or an execution

error results.

Parameters

1. Time in 24-hour format as HHMMSS
2. (Optional) Date in the format controlled by the DATEFMT command

Examples:

CLOCK 140700, 021992

Sets the clock to 2:07 p.m., February 19, 1992. (Assuming DATEFMT = MDY.)

CLOCK 080000, 100392

Sets the clock/calendar to 8:00 a.m., March 10, 1992. (Assuming DATEFMT = DMY.)

CLOCK?

Returns the setting of the clock.

Parameter

None

Response

(Integer) Time as HHMMSS.

(Integer) Date in the format controlled by the DATEFMT command.

Example

CLOCK?

Returns

150000,090191

Содержание 5790A

Страница 1: ...0A AC Measurement Standard Operators Manual PN 893284 January 1992 Rev 4 8 12 1992 2012 Fluke Corporation All rights reserved Printed in USA All product names are trademarks of their respective compan...

Страница 2: ...vice center to obtain return authorization information then send the product to that service center with a description of the difficulty postage and insurance prepaid FOB Destination Fluke assumes no...

Страница 3: ...cations of Part 15 of FCC Rules which are designed to provide reasonable protection against such interference in a residential installation Operation is subject to the following two conditions This de...

Страница 4: ......

Страница 5: ...of electric shock Refer to the manual see the Index for references GROUND Ground terminal to chassis earth Attention Refer to the manual see the Index for references This symbol indicates that inform...

Страница 6: ...rument cover without first removing the power source connected to the rear panel Do not operate the instrument without the cover properly installed Normal calibration is accomplished with the cover cl...

Страница 7: ...1 5 1 10 Current Shunt Adapters 1 6 1 11 Warranty and Service Information 1 6 1 12 Specifications 1 6 2 Installation 2 1 2 1 Introduction 2 3 2 2 Unpacking and Inspection 2 3 2 3 Environmental and Inp...

Страница 8: ...the Shunt Input for Relative Current 4 17 4 26 Choosing Delta Units 4 19 4 27 Establishing a Reference 4 19 4 28 Using the Top Level Menu Keys 4 21 4 29 VIEW REF Key 4 21 4 30 UTIL MENUS Key 4 22 4 31...

Страница 9: ...5 19 5 37 Bit Assignments for the ISR ISCR and ISCE 5 19 5 38 Programming the ISR ISCR and ISCE 5 20 5 39 Output Queue 5 20 5 40 Error Queue 5 20 5 41 IEEE 488 Interface Configuration 5 21 5 42 Bus Co...

Страница 10: ...ssories 9 3 9 4 Fluke A40 and A40A Current Shunt Adapter 5790A 7001 9 3 9 5 Fluke A40A Current Shunt Adapter for Input 1 792A 7004 9 3 9 6 Low Thermal EMF Test Leads 5440A 7002 9 4 9 7 Rack Mount Kit...

Страница 11: ...Amplitude Resolution 4 11 4 6 Measurement Display Frequency Resolution 4 11 5 1 Operating State Transitions 5 8 5 2 Units Accepted in Parameters and Used in Responses 5 9 5 3 Response Data Types 5 11...

Страница 12: ...5790A Operators Manual vi...

Страница 13: ...Test Lead Connections to Test a Voltmeter 4 9 4 2 Recommended Test Lead Connections to Test a Source 4 10 5 1 Status Register Overview 5 16 5 2 Status Byte and SRE Bit Definitions 5 18 5 3 Bit Assign...

Страница 14: ...5790A Operators Manual viii...

Страница 15: ...nsfer Modes 1 3 1 4 An Overview of the Features 1 4 1 5 Instruction Manuals 1 5 1 6 5790A Operators Manual 1 5 1 7 5790A Remote Programming Reference Guide 1 5 1 8 5790A Service Manual 1 5 1 9 Wideban...

Страница 16: ...5790A Operators Manual 1 2...

Страница 17: ...asurements The second Type N input connection supports the optional wideband mode and the SHUNT binding posts are for Fluke A40 Series current shunts 1 2 Inside the 5790A Two patented internal standar...

Страница 18: ...sured amplitude and frequency of the input signal on the Measurement Display no matter what other processes are taking place 1 4 An Overview of the Features See Section 3 for detailed descriptions of...

Страница 19: ...emote commands for the 5790A It also contains information needed to determine system status using the status byte and registers 1 8 5790A Service Manual The 5790A Service Manual is a maintenance guide...

Страница 20: ...ould result in damage during shipment 1 12 Specifications Specifications are valid after allowing a warm up period of 30 minutes or twice the time the 5790A has been turned off whichever is less For e...

Страница 21: ...1 MHz 290 1 3 180 1 3 110 1 3 210 2 0 310 2 5 810 4 0 860 6 0 1400 6 0 290 1 3 190 1 3 110 1 3 210 2 0 310 2 5 810 4 0 890 8 0 1700 8 0 290 1 3 190 1 3 110 1 3 210 2 0 310 2 5 820 4 0 1000 8 0 2600 8...

Страница 22: ...63 66 67 70 40 Hz 20 kHz 21 25 27 31 20 kHz 50 kHz 44 46 48 53 50 kHz 100 kHz 80 81 85 100 kHz 300 kHz 180 190 220 300 kHz 500 kHz 380 400 470 500 kHz 1 MHz 1100 1200 1500 70 V 10 Hz 20 Hz 2 200 200...

Страница 23: ...Hz 20 kHz 30 1 3 36 1 3 43 1 3 20 kHz 50 kHz 40 2 0 45 2 0 64 2 0 50 kHz 100 kHz 53 2 5 57 2 5 73 2 5 100 kHz 300 kHz 97 4 0 110 4 0 160 4 0 300 kHz 500 kHz 310 6 0 380 8 0 610 8 0 500 kHz 1 MHz 1200...

Страница 24: ...0 Hz 20 Hz 55 60 61 62 20 Hz 40 Hz 19 28 30 37 40 Hz 20 kHz 15 20 22 27 20 kHz 50 kHz 18 23 26 35 50 kHz 100 kHz 62 64 69 100 kHz 300 kHz 140 150 180 300 kHz 500 kHz 360 380 450 500 kHz 1 MHz 1100 120...

Страница 25: ...15 15 20 kHz 50 kHz 0 4 15 15 10 M 50 kHz 100 kHz 0 8 25 25 100 kHz 300 kHz 1 5 60 60 300 kHz 500 kHz 3 0 80 80 500 kHz 1 MHz 4 5 125 125 22 mV 10 Hz 20 Hz 0 4 5 5 20 Hz 40 Hz 0 4 5 5 40 Hz 20 kHz 0 4...

Страница 26: ...2 0 3 0 10 M 50 kHz 100 kHz 10 5 0 8 0 100 kHz 300 kHz 18 10 0 10 0 300 kHz 500 kHz 30 20 0 20 0 500 kHz 1 MHz 90 50 0 50 0 7 V 10 Hz 20 Hz 8 1 5 3 0 20 Hz 40 Hz 5 1 5 3 0 40 Hz 20 kHz 5 1 5 3 0 20 kH...

Страница 27: ...z 20 Hz 8 1 5 4 0 20 Hz 40 Hz 5 1 5 4 0 40 Hz 20 kHz 5 1 5 4 0 500 k 20 kHz 50 kHz 18 5 0 7 0 50 kHz 100 kHz 36 15 0 15 0 1 Add to uncertainty when more than 5 C from calibration temperature 2 Input c...

Страница 28: ...ding 40 Hz 2 seconds decreasing linearly to 1 second at 200 Hz 200 Hz 1 second per reading Maximum Settling Time to Full Specifications in range lock Filter Off 1 sample dc 6 seconds 200 Hz 8 seconds...

Страница 29: ...MHz 0 07 1 100 2 MHz 10 MHz 0 1 1 200 10 MHz 20 MHz 0 17 1 200 20 MHz 30 MHz 0 37 1 300 22 mV 10 Hz 30 Hz 0 10 75 0 4 10 0 5 13 0 7 16 30 Hz 120 Hz 0 05 75 0 4 10 0 5 13 0 7 16 120 Hz 1 2 kHz 0 05 75...

Страница 30: ...z 1 2 MHz 0 05 40 1 2 MHz 2 MHz 0 05 75 2 MHz 10 MHz 0 1 100 10 MHz 20 MHz 0 15 100 20 MHz 30 MHz 0 35 200 7 V 10 Hz 30 Hz 0 10 40 0 3 500 0 35 800 0 4 1000 30 Hz 120 Hz 0 03 40 0 3 500 0 35 800 0 4 1...

Страница 31: ...5 C to 35 C Storage 40 C to 70 C EMI RFI Complies with FCC Part 15 Subpart B Class B VDE 0871 Class B ESD EIA PN 1361 Surge ANSI C62 41 1980 Category A Reliability MIL T 2880D paragraph 3 13 3 Size He...

Страница 32: ...5790A Operators Manual 1 18 63 cm 24 8 in 17 8 cm 7 0 in 43 cm 17 0 in 6 35 cm 2 5 in FOR CABLE ACCESS REAR add1f eps Figure 1 1 Dimensions...

Страница 33: ...duction 2 3 2 2 Unpacking and Inspection 2 3 2 3 Environmental and Input Requirements 2 4 2 4 Cooling Considerations 2 4 2 5 Placement and Rack Mounting 2 5 2 6 Accessing the Fuse 2 5 2 7 Selecting Li...

Страница 34: ...5790A Operators Manual 2 2...

Страница 35: ...Instructions for inspection and claims are included in the shipping container When you unpack the 5790A check for all the standard equipment listed in Table 2 1 Also check for accessories if any were...

Страница 36: ...be below 1000 V dc or rms ac and be free of high energy transients Refer to Section 2 of the Service Manual for more information about protection circuitry 2 4 Cooling Considerations Caution Damage c...

Страница 37: ...abel to the right of the fuse holder labeled F1 shows the correct replacement fuse rating for each line voltage setting To access the fuse refer to Figure 2 2 and proceed as follows 1 Disconnect line...

Страница 38: ...voltage tolerance of 10 and a frequency range of 47 to 63 Hz The line voltage switches are located on the lower left side of the rear panel To change the line voltage setting set the line voltage sele...

Страница 39: ...CLEAN FILTER REMOVE FROM INSTRUMENT AND FLUSH WITH WARM SOAPY WATER IEEE 488 WARNING GROUNDING CONNECTOR IN POWER CORD MUST BE CONNECTED TO ENSURE PROTECTION FROM ELECTRIC SHOCK VOLTAGE SELECTION VOL...

Страница 40: ...5790A Operators Manual 2 8...

Страница 41: ...3 1 Chapter 3 Features Title Page 3 1 Introduction 3 3 3 2 Front Panel Features 3 3 3 3 Rear Panel Features 3 3...

Страница 42: ...5790A Operators Manual 3 2...

Страница 43: ...the 5790A rear panel features Table 3 2 describes these features POWER I O 5790A AC MEASUREMENT STANDARD 1000V RMS MAX 1000V RMS MAX 3V RMS MAX INPUT 1 INPUT 2 SHUNT HI LO GUARD GROUND 10V PEAK MAX WI...

Страница 44: ...UNT Key Selects the SHUNT to INPUT 2 LO binding posts as the active input These binding posts are only for connection through the accessory 5790A 7001 adapter cable to a Fluke Model A40 or A40A shunt...

Страница 45: ...and lock Numeric the range turning off autoranging if active or Keypad function as a numeric keypad when data entry is required Autorange or range lock is selected through a softkey on the Control Dis...

Страница 46: ...S3 S4 FUSE F1 1 2 6 5 7 8 3 9 10 4 add6f eps Figure 3 2 Accessing the Air Filter Table 3 2 Rear Panel Features Ref No Name Function 1 Fan Filter The filter covers the air intake to keep dust and debri...

Страница 47: ...ector for transmitting internal calibration constant data to a printer monitor or host computer and for remote control of the 5790A Section 7 describes proper cabling how to set up the serial interfac...

Страница 48: ...5790A Operators Manual 3 8...

Страница 49: ...the Measurement Control Menu 4 12 4 17 Digital Filter Mode Softkey 4 13 4 18 Digital Filter Restart Softkey 4 13 4 19 Hi Res Softkey 4 14 4 20 Selecting Auto or Locked Range 4 14 4 21 Selecting Conti...

Страница 50: ...5790A Operators Manual 4 2 4 36 Techniques for Reducing Transfer Errors 4 27 4 37 DC Reversal 4 27 4 38 Loading 4 28 4 39 Mechanical Contact 4 28 4 40 Thermal EMFs 4 28 4 41 EMI 4 28...

Страница 51: ...ence between the two The 5790A is exceptionally accurate in detecting the difference in levels between rms ac and dc voltages applied to its inputs 4 2 Turning on the 5790A Warning To avoid electric s...

Страница 52: ...d components inside to stabilize You can use the 5790A right away but a 30 minute warmup period is required to ensure that the 5790A meets or exceeds the specifications listed in Section 1 If you turn...

Страница 53: ...rors on all ranges and optimizes internal settling parameters to improve measurement speed Specifications require that you execute dc zeros at least as often as every 30 days To execute zeros calibrat...

Страница 54: ...ther on in this section for more information 4 8 Coaxial Inputs Warning The type N connector shells are connected to circuit low and can float to hazardous voltages if the input is connected incorrect...

Страница 55: ...ding Posts Note The following information applies to INPUT 1 INPUT 2 and the SHUNT input only It does not apply to the WIDEBAND input The Wideband option is designed so that once you connect a coaxial...

Страница 56: ...guard configuration To prevent errors due to common mode signals especially at higher frequencies where the guard becomes less effective the following steps are recommended Refer to Figure 4 1 for the...

Страница 57: ...90A 4 4 9 5790A AC MEASUREMENT STANDARD 5790A EXT GRD UUT DMM SOURCE INT GRD 2 Use HEAVY BRAID 4 PLANE OF REFERENCE 3 LOCATION OF EXTERNAL ATTENUATOR IF USED 1 GUARD 1 EXT GRD add9f eps Figure 4 1 Rec...

Страница 58: ...Connection For some conditions such as low frequency common mode interference better results may be obtained by using the external guard configuration Select external guard by pressing EX GRD so that...

Страница 59: ...shows the measured input voltage and frequency on two lines Features and functions of the Measurement Display are summarized in Table 3 1 in Section 3 Table 4 5 shows the amplitude resolution display...

Страница 60: ...surement since power up or an action such as an input or range change has invalidated a measurement in progress the display shows dashes instead of numerals mV add7f eps An overload is indicated by fl...

Страница 61: ...he restart floor allows you to set the threshold of restarting the filter as a way of rejecting inconsistent readings Readings over the threshold flush the filter and start a new running average Until...

Страница 62: ...ocking a range and applying excessive voltage for that range does not damage the instrument if voltage and current limits are observed 1000 V dc or rms and 200 mA max The 5790A input impedance is depe...

Страница 63: ...leted measurement is under way Select external trigger mode by pressing EX TRIG so that its keycap indicator is lit When the Digital Filter is active and the 5790A is in external trigger mode pressing...

Страница 64: ...is governed by 5790A ac dc difference specifications in addition to the uncertainty of the dc source A transfer is the process of comparing an unknown ac voltage to a known voltage Accuracy of the tr...

Страница 65: ...ows for direct connection to current shunts Connection to A40 and A40A Current Shunts requires the 5790A 7001 accessory which consists of an adapter and cable The cable is approximately 36 inches long...

Страница 66: ...needed the 5790A with the 792A 7004 Adapter should be used Note Current measurements are specified for transfer mode only Use the ac dc difference specification for the voltage being read from the cur...

Страница 67: ...he difference between an applied input and the stored reference or average of references The difference can be displayed in units of V or mV ppm percent or ratio Once a reference has been established...

Страница 68: ...ity of the dc input and press the Avg Ref softkey to correct for dc reversal error The 5790A averages a new measurement taken from INPUT 2 with the previously stored reference The displays now appear...

Страница 69: ...y under PPM you can cycle through the delta units choices Note that the formula used to compute the ac dc or ac ac difference changes depending on delta units kHz add18f eps add08m eps 4 28 Using the...

Страница 70: ...This is the top level utilities menu The list below describes submenus accessed through each softkey and tells you where to find further information in the manuals Cal Opens the calibration menu Softk...

Страница 71: ...1 or INPUT 2 as the initial input Section 4 16 describes how to use these softkeys 4 31 Checking Instrument Configuration The Config softkey in the utilities menu shows the serial number of the 5790A...

Страница 72: ...menu accessed by pressing Setup softkey in the utilities menu are shown below add08u eps The list below describes submenus accessed by each softkey and tells you where you can find further informatio...

Страница 73: ...d off It contains calibration constants and dates setup parameters and the user report string Softkeys in this menu let you replace all or part of the contents with factory defaults In the case of cal...

Страница 74: ...date of the internal clock proceed as follows 1 If you want to set the date or both date and time set the rear panel CALIBRATION STORE switch to ENABLE See Figure 3 2 for the switch location The posit...

Страница 75: ...ss For the SHUNT input no specification is displayed The days since calibration relates to the calibration procedure for the active input Periodic or WIDEBAND 4 36 Techniques for Reducing Transfer Err...

Страница 76: ...onnectors on the 5790A are all stainless steel To achieve the highest quality measurements do not disturb the instrumentation setup during the course of a transfer Try not to move jostle or vibrate th...

Страница 77: ...15 Extra Space or Tab Characters 5 9 5 16 Terminators 5 9 5 17 Incoming Character Processing 5 10 5 18 Response Message Syntax 5 10 5 19 Input Buffer Operation 5 10 5 20 Using Commands 5 12 5 21 Multi...

Страница 78: ...5 42 Bus Communication Overview 5 22 5 43 Device Dependent Commands 5 22 5 44 Common Commands 5 22 5 45 Interface Messages 5 22 5 46 Definition Queries and Commands 5 23 5 47 Functional Elements of Co...

Страница 79: ...nterface 5 2 Using the IEEE 488 Interface for Remote Control The 5790A is fully programmable for use on the IEEE Standard 488 1 interface bus IEEE 488 bus The interface is also designed in compliance...

Страница 80: ...the range is 0 to 30 use the up or down arrow key as instructed on the display add40f eps Attach the IEEE 488 cable to the rear panel IEEE 488 connector It is recommended that you use Fluke shielded...

Страница 81: ...ond RS 232 parameter menu appears add44f eps Press the softkeys to select the desired stall method terminal computer responses and EOL characters Choose TERMINAL mode for interactive remote control Re...

Страница 82: ...cannot be a part of the PUD command except if C notation is used within strings The PUD command terminates with Line Feed or Carriage Return the same as all other serial remote commands C Control C J...

Страница 83: ...he GTL Go To Local interface message returns the 5790A to the local state One way to send the GTL interface message is to execute the 1722A LOCAL statement Note The left most softkey does not toggle b...

Страница 84: ...errors to occur When a command error occurs bit CME 5 in the Event Status Register ESR goes to 1 if enabled in ESE register and the error is logged in the error queue Table 5 2 lists the vocabulary o...

Страница 85: ...iated multiplier or unit Section 6 contains examples for commands whose parameters or responses are not self explanatory Remote program examples for the Fluke 1722A Instrument Controller are provided...

Страница 86: ...each data byte from the controller it places the bytes in a portion of memory called the input buffer The input buffer holds up to 128 data bytes and operates in a first in first out fashion The 5790A...

Страница 87: ...ASCII IAD Any ASCII characters followed by EOM EOM is an IEEE 488 bus message Queries with this type of response MUST be the last query in a program message Example CMD OPT RESP WBND CMD OPT ESE RESP...

Страница 88: ...IVE INPUT 30 PRINT 6 MEAS TAKE A MEASUREMENT 40 INPUT 6 V F ST GET THE RESULT If you wish to use SRQs first use the SRE ESE and ISCE commands to enable the desired event Refer to Checking the Instrume...

Страница 89: ...ess it is stated otherwise in the alphabetical listings You can use OPC OPC and WAI to detect completion of overlapped or long term commands See the full descriptions of OPC OPC and WAI in Section 6 a...

Страница 90: ...byte at power on is determined by the value of the service request enable register SRE which is saved in nonvolatile memory Its bits are defined as follows bits 1 and 0 are always 0 If you are using...

Страница 91: ...RE 20 PRINT 6 SRE 16 LOAD THE REGISTER 30 PRINT 6 SRE ASK FOR THE SRE CONTENTS 40 INPUT 6 A RETRIEVE THE REGISTER CONTENTS 50 PRINT SRE A 60 RETURN The following program generates an error and checks...

Страница 92: ...Generation SRQ on IEEE bus Output Buffer EAV ISCB Logical OR Instrument Status Change Registers Read Using ISCR and ISCR0 R E M O T E R P T B S Y 0 0 0 0 0 0 0 M C C H G M C C H G I N P C H G R N G C...

Страница 93: ...s 1 the corresponding bit in the ESR is enabled When any enabled bit in the ESR is 1 the ESB bit in the Serial Poll Status Byte also goes to 1 The ESR bit stays 1 until the controller reads the ESR or...

Страница 94: ...One or more enabled ISCR bits are 1 add48f eps Figure 5 2 Status Byte and SRE Bit Definitions Convert the contents of variables A and B into binary and you can read the status of the registers For ex...

Страница 95: ...talk when no response data was available or appropriate or when the controller failed to retrieve data on the output queue OPC Operation complete All commands previous to reception of a OPC command h...

Страница 96: ...00000 00000100 Therefore bit 3 RNGCHG is set 1 and the rest of the bits are reset 0 By setting the bits in an ISCE register you can mask disable the associated bits in the ISCR For example to cause an...

Страница 97: ...t changes to 1 only in the ISCR0 and ISCR1 registers Set to 1 when the range has changed This bit is always 0 in the ISR It changes to 1 only in the ISCR0 and ISCR1 registers Set to 1 when the present...

Страница 98: ...en the 5790A and the IEEE 488 controller Some commands cause an action to take place in the 5790A Others called queries in the IEEE standards ask for information and always generate a response message...

Страница 99: ...commands described by the IEEE 488 2 standard that are used by the 5790A This table is for those who have a copy of the standard and want to use it to pursue additional information The standard provi...

Страница 100: ...ake sure devices are not confused 1120 IF SPL 6 AND 64 THEN GOSUB 1200 If STB RQS call 5790A SRQ 1130 TEST OTHER DEVICES RQS BITS IF DESIRED 1140 RESUME 1200 5790A SRQ handler 1210 IF SPL 6 AND 8 THEN...

Страница 101: ...rder to use the best range for a given value it is necessary to use 5790A RANGE command Given the approximate value to be measured the RANGE command selects sets and locks the best range in which to m...

Страница 102: ...T1 320 PRINT Connect AC voltage source to I 330 PRINT A CAL_AC I 340 GOSUB 1000 400 REM Save the calibration constants 410 PRINT Set CAL STORE switch to ENABLE press RETURN to continue 420 INPUTLINE A...

Страница 103: ...ingle query sent from the controller to the device PROGRAM DATA Any of the six program data types PROGRAM MESSAGE UNIT SEPARATOR Separates PROGRAM MESSAGE UNIT elements from one another in a PROGRAM M...

Страница 104: ...on commands addressed to a specific instrument None DAC Data Accepted Sets the handshake signal line NDAC low None DAV Data Valid Asserts the handshake signal line DAV None DCL Device Clear Clears the...

Страница 105: ...c device on the bus as a listener The controller sends UNT automatically after it receives the response from a device dependent or common query None Table 5 8 Interface Messages that the 5790A Sends M...

Страница 106: ...0I DIO3 DIO1 SHIELD SRQ NDAC DAV DIO4 DIO2 LOGIC GND GND 10 GND 8 GND 6 DIO8 DIO6 GND 11 GND 9 GND 7 REN DIO7 DIO5 1 2 3 4 5 6 7 8 9 10 11 12 13 24 14 15 16 17 18 19 20 21 22 23 add51f eps Figure 5 5...

Страница 107: ...6 1 Chapter 6 Remote Commands Title Page 6 1 Introduction 6 3 6 2 Alphabetical List of IEEE 488 2 Common Commands 6 7 6 3 Alphabetical List of 5790A Device Dependent Commands 6 13...

Страница 108: ...5790A Operators Manual 6 2...

Страница 109: ...tus enable register described in Status Information section below ESE Returns the decimal equivalent of the event status enable register described in Status Information section below ESR Returns the d...

Страница 110: ...ndar DATEFMT Selects the clock calendar date format DATEFMT Returns the clock calendar date format EOFSTR Stores the end of file character sequence for use in cal reports EOFSTR Returns the end of fil...

Страница 111: ...value of the present input measurement TRIG Triggers a measurement When the 5790A is in manual trigger mode it begins a measurement when it receives the TRG TRIG or MEAS command UNCERT Returns the pr...

Страница 112: ...ation step CAL_CLST Lists the symbolic names for all the calibration constants for a specified range CAL_CONST Returns the value of a particular calibration constant CAL_DATE Returns the date of the m...

Страница 113: ...aved this is like CAL_STLST except only the initial number is given CAL_TEMP Sets the temperature for calibration This should be done before CAL_DC CAL_I2 and CAL_AC commands Once set the temperature...

Страница 114: ...EXE 1 RQC and 0 OPC ESE Reads the contents of Event Status Enable register described under Checking 5790A Status Parameter None Example ESE Returns 140 if bits 2 QYE 3 DDE and 7 PON are enabled 1 and...

Страница 115: ...time recreates the operational state This response uses the LRN command which is reserved for this purpose and is not documented beyond here Parameter None Response An IAD that when later sent to the...

Страница 116: ...perations are complete See also WAI Parameter None Response Integer 1 after all operations are complete OPT Query which hardware and software options are installed Parameter None Response IAD WBND or...

Страница 117: ...acters Example PUD Returns 216CAL LAB NUMBER 1 Assuming that this is stored as in the example for PUD above RCL Restores the 5790A operating state to a previous setup saved using the SAV command This...

Страница 118: ...ce Request Enable register SRE described under Checking 5790A Status Parameter The decimal equivalent of the binary number to load into the register You can also send a binary octal or hexadecimal num...

Страница 119: ...cuted until all previous remote commands have been executed See also OPC Parameter None Example If you had sent a TRIG command you can cause the 5790A to wait until the measurement has settled before...

Страница 120: ...location amplitude tells range CAL_NEXT amplitude this is the first step frequency is implicit CAL_NEXT amplitude this is the last step An error occurs if either the entered amplitude is out of range...

Страница 121: ...symbolic names and values for a group of calibration constants Parameters 1 ACTIVE STORED OLD or DEFAULT 2 Which constants to list This parameter may be a single constant e g DI_7V or a group of const...

Страница 122: ...he most recent calibration Parameters MAIN Entire main input calibration WBND Wideband calibration SERVICE Service calibration DC DC calibration AC AC calibration ZC DC zeros calibration WDC Wideband...

Страница 123: ...meter is included list only the steps for the specified range if not included list steps for all ranges Response IAD A list in the following form of ranges EOL range 1 max of steps in range EOL 1st st...

Страница 124: ...ameters 1 INPUT1 or INPUT2 2 A number signifying input frequency including units If no units are given HZ are assumed value must be between 900 Hz and 1 1 kHz inclusive CAL_I2 Begins the INPUT 2 vs IN...

Страница 125: ...ION MODE switch CAL_SW returns the CALIBRATION STORE switch setting Parameter None Response Integer 0 PERIODIC 1 SERVICE CAL_NEXT Initiates the next calibration point An error occurs if the response f...

Страница 126: ...point to be calibrated The units are assumed to be Hertz Example CAL_DC 150 mV CAL_NEXT 1 5E 01 0 0E 00 If the 5790A has calibrated the first point of an ac range the CAL_NEXT query returns the ampli...

Страница 127: ...ORED to ACTIVE STORED the shift from ACTIVE to STORED 2 Input binding post WBND INPUT1 INPUT2 or SHUNT 3 The value at which to show the shift This parameter selects the range the same way as in the RA...

Страница 128: ...to show the specification Use 0 0 for dc Response Float The specification in PPM If there is no specification for the input 0 is returned CAL_STLST Lists the calibration constant groups that have been...

Страница 129: ...en updated otherwise the number of groups CAL_SW Returns the setting of the rear panel CALIBRATION STORE switch CAL_MODE returns the CALIBRATION MODE switch setting Parameter None Response Integer 0 N...

Страница 130: ...None CLOCK Sets the clock calendar If the second parameter is present the rear panel CALIBRATION STORE switch must be in the ENABLE position or an execution error results Parameters 1 Time in 24 hour...

Страница 131: ...te and DD MM YY on the display YMD for YYMMDD in remote and YYMMDD on the display DATEFMT Returns the present date format setting Parameter None Responses CRD MDY for MMDDYY in remote and MM DD YY on...

Страница 132: ...verlapped long term command Parameter Selects diagnostic routine to run or action to take if an error was encountered during remote controlled diagnostics The choices are ALL Runs all diagnostics for...

Страница 133: ...rameters The EOF string two characters maximum EOFSTR Returns the End Of File character string Parameter None Response String The End Of File character string ERR Returns the first error code containe...

Страница 134: ...rameter is originally obtained by sending the FAULT query See the ERR command which returns both the error code and the explanation string Parameter The error code an integer Response The explanation...

Страница 135: ...explanation string A zero value is returned when the error queue is empty so to read the entire contents of the error queue repeat FAULT until the response is 0 Parameter None Response Integer The er...

Страница 136: ...s the setting of the HIRES command for higher resolution amplitude displays and remote responses as defined in Table 4 5 Response Integer 1 for on or 0 for off INPUT Selects the active input connector...

Страница 137: ...nge Enable register ISCE1 Loads two bytes into the Instrument Status 0 to 1 Change Enable register described under Checking 5790A Status Parameter The decimal equivalent of the binary number to load i...

Страница 138: ...us 1 to 0 Change register ISCR1 Reads and clears the contents of the Instrument Status 0 to 1 Change Register described under Checking 5790A Status Parameter None Response Integer The contents of the...

Страница 139: ...od the command generates an error and presents the closest approximation of the measurement obtained in the timeout period The MEAS command is equivalent to the following sequence of commands TRIG WAI...

Страница 140: ...ed value furnished as a parameter or otherwise controls the range setting as defined by the parameter The range selected will be the one within whose limits as returned by the RANGE command the value...

Страница 141: ...he last reference was measured e g INPUT1 or NONE if no reference is set REFAVG Sets the reference to the average of the present stored reference value and the present input measurement This command g...

Страница 142: ...ters SPLSTR Sets the serial remote mode Serial Poll response string Parameters The string up to 40 characters to print on receipt of a P character SPLSTR Returns the string programmed for serial remot...

Страница 143: ...SBIT1 PNONE CRLF Example 1200 COMP XON DBIT8 SBIT1 EVEN CRLF SP_SET Returns the serial port settings contained in nonvolatile memory Response 1 Integer One of these baud rate values 300 600 1200 2400...

Страница 144: ...UNCERT Returns the uncertainty in ppm of the instrument for the present measurement value and the present calibration interval setting This returns 0 if there is no specification for the present meas...

Страница 145: ...e Page 7 1 Introduction 7 3 7 2 Serial Interface Specifications 7 3 7 3 Setting Up and Connecting the Serial Interface 7 4 7 4 Printing Calibration Reports 7 5 7 5 Sample Measurement Shifts Report 7 6...

Страница 146: ...5790A Operators Manual 7 2...

Страница 147: ...other information to a printer video display terminal or host computer 7 2 Serial Interface Specifications The serial interface is configured as DTE Data Terminal Equipment A null modem cable with tw...

Страница 148: ...nnecting the Serial Interface Refer to the specifications for your peripheral device and proceed as follows to set up the serial interface for your application 1 Connect an RS 232 null modem cable suc...

Страница 149: ...f the ASCII American Standard Code for Information Interchange character or characters to be designated as EOF Appendix C contains a table of ASCII codes Verify that your selection is correct as shown...

Страница 150: ...N REPORT Calibration Shifts STORED vs OLD Constants Printed on 12 17 91 at 11 39 00 Serial Number 5420001 Report String 5790A Software Versions Main 1 2 Inguard 1 2 CALIBRATION DATES AND TEMPERATURES...

Страница 151: ...8 5 20 0 kHz 48 3 ppm 395 7 ppm 12 2 300 0 kHz 70 8 ppm 1771 4 ppm 4 0 500 0 kHz 155 0 ppm 2442 9 ppm 6 3 800 0 kHz 364 0 ppm 3442 9 ppm 10 6 1 0 MHz 777 5 ppm 3442 9 ppm 22 6 I2 vs I1 1 0 MHz 1 3 ppm...

Страница 152: ...DC Cal INPUT1 AC Cal INPUT1 FREQUENCY STORED vs OLD 1 YEAR ABS SPEC OF SPEC DC 0 0 ppm No Spec DC 0 0 ppm No Spec 10 0 Hz 2 2 ppm 200 0 ppm 1 1 1 0 kHz 1 2 ppm 24 0 ppm 5 0 20 0 kHz 1 6 ppm 24 0 ppm 6...

Страница 153: ...5 1 0 kHz 0 0 ppm 31 0 ppm 0 0 20 0 kHz 0 7 ppm 31 0 ppm 2 3 300 0 kHz 6 1 ppm 210 0 ppm 2 9 I2 vs I1 1 0 MHz 0 6 ppm 700V RANGE DC Cal INPUT1 AC Cal INPUT1 FREQUENCY STORED vs OLD 1 YEAR ABS SPEC OF...

Страница 154: ...7043 1 6 15 0 MHz 0 0203 0 7843 2 6 20 0 MHz 0 0390 0 7843 5 0 26 0 MHz 0 0462 0 9843 4 7 30 0 MHz 0 0775 0 9843 7 9 WIDE BAND 22 mV RANGE FREQUENCY STORED vs OLD 1 YEAR ABS SPEC OF SPEC 10 0 Hz 0 00...

Страница 155: ...15 0 MHz 0 0028 0 5864 0 5 20 0 MHz 0 0052 0 5864 0 9 26 0 MHz 0 0074 0 7864 0 9 30 0 MHz 0 0110 0 7864 1 4 WIDE BAND 700 mV RANGE FREQUENCY STORED vs OLD 1 YEAR ABS SPEC OF SPEC 10 0 Hz 0 0050 0 442...

Страница 156: ...Report JOHN FLUKE MFG CO INC 5790 CALIBRATION REPORT Calibration Constant List Printed on 12 17 91 at 13 11 43 Serial Number 5420001 Report String 5790A Software Versions Main 1 2 Inguard 1 2 CALIBRAT...

Страница 157: ...MHz F7_2_2MV 1 01795813 1 01795813 1 01616176 7 mV RANGE CONSTANT NAME ACTIVE STORED OLD True Gain DI_7MV 1 001031e 03 1 001031e 03 1 001031e 03 Rough Gain IA_7MV 3 070076e 03 3 070076e 03 3 070076e...

Страница 158: ...V 3 093178e 05 3 093178e 05 3 093178e 05 DC Turnover OF_700MV 1 770888e 06 1 770888e 06 1 770888e 06 Shunt Offset SHO_700MV 2 520451e 05 2 520451e 05 2 520451e 05 10 0 Hz F1_700MV 1 00010458 1 0001045...

Страница 159: ...Gain IA_22VHF 9 888533e 00 9 888533e 00 9 888533e 00 DC Zero Z_22VHF 0 000000e 00 0 000000e 00 0 000000e 00 DC Turnover OF_22VHF 2 515259e 03 2 515259e 03 2 515259e 03 100 0 kHz F1_22VHF 1 00034703 1...

Страница 160: ...GE CONSTANT NAME ACTIVE STORED OLD True Gain DI_2_2MV_WB 5 012127e 03 5 012127e 03 5 012127e 03 Rough Gain IA_2_2MV_WB 3 074441e 02 3 074441e 02 3 074441e 02 10 0 Hz F1_2_2MV_WB 1 00273520 1 00273520...

Страница 161: ...F5_22MV_WB 0 99939840 0 99939840 0 99940348 200 0 kHz F6_22MV_WB 0 99862014 0 99862014 0 99861548 500 0 kHz F7_22MV_WB 0 99859246 0 99859246 0 99858680 1 0 MHz F8_22MV_WB 0 99872840 0 99872840 0 99875...

Страница 162: ...6 0 MHz F15_220MV_WB 1 00256308 1 00256308 1 00263741 30 0 MHz F16_220MV_WB 1 00316900 1 00316900 1 00327895 WIDE BAND 700 mV RANGE CONSTANT NAME ACTIVE STORED OLD True Gain DI_700MV_WB 9 965484e 00 9...

Страница 163: ...99820942 0 99820942 0 99828133 WIDE BAND 7V RANGE CONSTANT NAME ACTIVE STORED OLD True Gain DI_7V_WB 9 964605e 01 9 964605e 01 9 964605e 01 Rough Gain IA_7V_WB 1 001994e 02 1 001994e 02 1 001994e 02 1...

Страница 164: ...5790A Operators Manual 7 20...

Страница 165: ...8 1 Chapter 8 Operator Maintenance Title Page 8 1 Introduction 8 3 8 2 Accessing the Fuse 8 3 8 3 Cleaning the Air Filter 8 4 8 4 General Cleaning 8 4 8 5 Calibration 8 5...

Страница 166: ...5790A Operators Manual 8 2...

Страница 167: ...ting label to the right of the fuse holder shows the correct replacement fuse ratings for each operating voltage To access the fuse refer to Figure 8 1 and proceed as follows 1 Disconnect line power 2...

Страница 168: ...ng water c Shake out the excess water then allow the filter element to dry thoroughly before reinstalling it CAUTION FOR FIRE P ROTECTION REPLACE ONLY WITH A 250V FUSE OF INDICATED RATING VOLTAGE SELE...

Страница 169: ...ion When shipped your 5790A is calibrated at the factory traceable to the U S National Institute of Standards and Technology To maintain traceability calibrate the 5790A to traceable external standard...

Страница 170: ...5790A Operators Manual 8 6...

Страница 171: ...ies 9 3 9 4 Fluke A40 and A40A Current Shunt Adapter 5790A 7001 9 3 9 5 Fluke A40A Current Shunt Adapter for Input 1 792A 7004 9 3 9 6 Low Thermal EMF Test Leads 5440A 7002 9 4 9 7 Rack Mount Kit Y573...

Страница 172: ...5790A Operators Manual 9 2...

Страница 173: ...of the source in ppm as you sweep the source through the WIDEBAND input frequency range 9 3 Accessories Table 9 1 summarizes the accessories available for use with the 5790A Following the table is a b...

Страница 174: ...pin connectors at both ends to allow stacking Metric threaded mounting screws are provided with each connector Figure 5 2 in Section 5 shows the pinout for the IEEE 488 connector 9 9 RS 232 C Null Mod...

Страница 175: ...es Appendix Title Page A Glossary of AC DC Transfer Related Terms A 1 B ASCII and IEEE 488 Bus Codes B 1 C Calibration Constant Information C 1 D 5790A Error Codes D 1 E 5200A Verification and Calibra...

Страница 176: ...5790A Operators Manual...

Страница 177: ...er of artifact standards The Fluke 5700A Calibrator uses Artifact Calibration artifact standard A stable object that produces or embodies a physical quantity for use as a reference standard An artifac...

Страница 178: ...he ampere buffer 1 An area of digital memory for temporary storage of data 2 An additional amplifier stage to reduce output impedance levels burden voltage The maximum sustainable voltage across the t...

Страница 179: ...the values and the corresponding frequencies of a variable drift Gradual change in a value over time error Deviation from correct value The different types of error defined in this glossary are floor...

Страница 180: ...maintenance cost and the cost of support equipment linearity The relationship between two quantities when a change in the first quantity is directly proportional to a change in the second quantity li...

Страница 181: ...nditions The precision of a measurement process is its coherence or repeatability Note that while precision is necessary for accuracy it does not imply it predictability A measure of what is known of...

Страница 182: ...removed and reapplied over a specified time period rf radio frequency The frequency range of radio waves from 150 kHz up to the infrared range rms root mean square The value assigned to an ac voltage...

Страница 183: ...ictable manner as successive measurements of the same quantity are made under effectively identical conditions Note that a known systematic error can be compensated for with a correction whereas a ran...

Страница 184: ...ed verification The comparison of a measurement or source device UUT with a measurement or source device of known and lesser uncertainty to report variation from required performance Verification does...

Страница 185: ...B 1 Appendix B ASCII and IEEE 488 Bus Codes...

Страница 186: ...5790A Operators Manual B 2...

Страница 187: ...Appendices ASCII and IEEE 488 Bus Codes B B 3...

Страница 188: ...5790A Operators Manual B 4...

Страница 189: ...Internally Calibrated DAC Sensor and A D Parameters Name Default Function DAC_Z1 398 0 Reference DAC zero coarse channel DAC Z2 17500 00 Reference DAC zero fine channel DAC_RATIO 16500 0 Reference DAC...

Страница 190: ...earization Name Default Function LN C 02 see title Group AC_LINEARITY Low Frequency Linearization Name Default Function INPUT2_LO 150 0E 6 INPUT2 vs INPUT1 flatness 2 2 V INPUT2_MID 350 0E 6 INPUT2 vs...

Страница 191: ...OF_7MV 0 0 Full scale calibrated DC offset Group ZC_7MV DC Constants 7 mV Range Name Default Function Z_7MV 0 0 Zero calibrated DC offset SHO_7MV 0 0 Shunt input DC offset IA_7MV 0 00316228 Rough gai...

Страница 192: ...ange Name Default Function DI_70MV 100 0 Basic gain Ref DAC to input ratio OF_70MV 0 0 Full scale calibrated DC offset Group ZC_70MV More DC Constants 70 mV Range Name Default Function Z_70MV 0 0 Zero...

Страница 193: ...00 mV Range Name Default Function DI_700MV 10 0 Basic gain Ref DAC to input ratio OF_700MV 0 0 Full scale calibrated DC offset Group ZC_700MV More DC Constants 700 mV Range Name Default Function Z_700...

Страница 194: ..._7V 1 0 Basic gain Ref DAC to input ratio OF_7V 0 0 Full scale calibrated DC offset Group ZC_7 V More DC Constants 7 V Range Name Default Function Z_7V 0 0 Zero calibrated DC offset IA_7V 3 16228 Roug...

Страница 195: ...nction Z_22V 0 0 Zero calibrated DC offset IA 22V 10 0 Rough gain input to A D ratio Group AC_22 V Flatness Constants 22 V Range Name Default Function F1_22V 1 0 10 Hz F2_22V 1 0 1 kHz F3_22V 1 0 20 k...

Страница 196: ...Hz F4_70V 1 0 500 kHz F5_70V 1 0 1 MHz Group DC_220 V DC Constants 220 V Range Name Default Function DI_220V 0 05 Basic gain Ref DAC to input ratio OF_220V 0 0 Full scale calibrated DC offset Group ZC...

Страница 197: ...fault Function DI_1000V 0 005 Basic gain Ref DAC to input ratio OF_1000V 0 0 Full scale calibrated DC offset Group ZC_1000 V More DC Constants 1000 V Range Name Default Function Z_1000V 0 0 Zero calib...

Страница 198: ...WB 1 0 200 kHz F7_2_2MV_WB 1 0 500 kHz F8_2_2MV_WB 1 0 1 MHz F9_2_2MV_WB 1 0 2 MHz F10_2_2MV_WB B 1 0 4 MHz F11_2_2MV_WB B 1 0 8 MHz F12_2_2MV_WB B 1 0 10 MHz F13_2_2MV_WB B 1 0 15 MHz F14_2_2MV_WB B...

Страница 199: ...1 0 4 MHz F11_7MV_WB 1 0 8 MHz F12_7MV_WB 1 0 10 MHz F13_7MV_WB 1 0 15 MHz F14_7MV_WB 1 0 20 MHz F15_7MV_WB 1 0 26 MHz F16_7MV_WB 1 0 30 MHz Group WDC_22MV Gain Constants Wideband 22 mV Range Name De...

Страница 200: ...Range Name Default Function DI_70MV_WB 100 0 Basic gain Ref DAC to input ratio IA_70MV_WB 1 0 Rough gain input to A D ratio Group WAC_70MV Flatness Constants Wideband 70 mV Range Name Default Functio...

Страница 201: ...200 kHz F7_220MV_WB 1 0 500 kHz F8_220MV_WB 1 0 1 MHz F9_220MV_WB 1 0 2 MHz F10_220MV_W B 1 0 4 MHz F11_220MV_W B 1 0 8 MHz F12_220MV_W B 1 0 10 MHz F13_220MV_W B 1 0 15 MHz F14_220MV_W B 1 0 20 MHz F...

Страница 202: ...band 2 2 V Range Name Default Function DI_2_2V_WB 3 16228 Basic gain Ref DAC to input ratio IA_2_2V_WB 31 6228 Rough gain input to A D ratio Group WAC_2_2V Flatness Constants Wideband 2 2 V Range Name...

Страница 203: ...D ratio Group WAC_7V Flatness Constants Wideband 7 V Range Name Default Function F1_7V_WB 1 0 10 Hz F2_7V_WB 1 0 100 Hz F3_7V_WB 1 0 1 kHz F4_7V_WB 1 0 10 kHz F5_7V_WB 1 0 50 kHz F6_7V_WB 1 0 200 kHz...

Страница 204: ...5790A Operators Manual C 16...

Страница 205: ...ce outside of limits 109 CAL Measured and entered input don t match 110 CAL Frequency doesn t match expected 111 CAL Input is of wrong polarity 112 CAL Input is changing during cal 113 CAL Input tripp...

Страница 206: ...07 DIAG A15 ND Chopper s 408 DIAG A10 Transfer s Range 409 DIAG A10 Transfer s Protection check 410 DIAG A10 Transfer Overload check 411 DIAG A10 Transfer Sensor input output match 412 DIAG A10 Transf...

Страница 207: ...ad NV selector d 1004 NV d Blocks failed post format check 1100 OPM Guard crossing protocol failed to start 1101 OPM Analog hardware initialization failed 1102 OPM Giving up on initializing hardware 1...

Страница 208: ...ment array full 1610 SEQ Name array full 1611 SEQ Already defining a sequence 1612 SEQ Not defining a sequence 1613 SEQ Command failed 1700 SER Bad virtual channel d 1701 SER d framing 1702 SER d inpu...

Страница 209: ...ppendices 5790A Error Codes D D 5 2204 UT Domain error s 2205 UT Singularity s 2206 UT Overflow s 2207 UT Underflow s 2208 UT Error s 2209 UT s 2300 WD Watchdog timed out tid d 65535 ERR Unknown error...

Страница 210: ...5790A Operators Manual D 6...

Страница 211: ...edures will require additional test accessories see Table F 1 Use all other verification and calibration procedures of the 5200A manual as written Table F 1 Additional Test Accessories Accessories Mod...

Страница 212: ...the desired output voltage and frequency from the 5200A Suggested representative voltage and frequency combinations along with accuracy tolerances are listed in Table F 2 4 Set the reference voltage...

Страница 213: ...V Output Accuracy Equipment Configuration 2 Ensure the Equipment Set Up procedure has been performed 3 Set the 5200A output to 100 mV on the 100 mV range at 1 kHz Note Internal sensing is automatic on...

Страница 214: ...uency Ranges Output Range 10 Hz 30 Hz 0 1 10 V 30 Hz 20 kHz 0 02 10 V 20 kHz 100 kHz 0 05 20 V 0 1 MHz 1 0 MHz 0 33 30 V 100 mV 100 mV range 10 mV 10 mV range 1 mV 1 mV range 0 11 0 2 1 1 0 03 0 12 1...

Страница 215: ...units to give PCT d Reset the 5200A to 1 mV 13 Perform the measurements at the frequencies desired The readings should not be greater than the value listed for the voltage frequency selected in Table...

Страница 216: ...overs and firmly secure for these tests 2 Make the adjustments through the marked ports in the instrument compartment inner cover as shown in Figure F 6 3 Perform the tests in sequence ensuring that t...

Страница 217: ...1 V on the 1 V range and 1 MHz on the 1 MHz range 2 Adjust HIGH FREQ GAIN R91 AC DC Converter PCB if necessary to give a 5790A reading of 1 0000000 0 000100 V 3 Repeat the High Frequency Zero Calibra...

Страница 218: ...litude and linearity for the 1 mV 10 mV and 100 mV ranges Install the inner covers and firmly secure for these tests Make the adjustments through the marked ports in the instrument compartment inner c...

Страница 219: ...1 MHz range 11 Adjust the 1 mV High Freq R11 Attenuator PCB if necessary to give a reading of 1 0000 0 0010 mV Error Control Calibration Use the following procedure for the error control calibration 1...

Страница 220: ...rale Berlin Heerstra e 32 14052 Berlin Tel 030 214982 0 Fax 030 214982 50 office calplus de www calplus de CalPlus GmbH Niederlassung Hamburg Normannenweg 30 20537 Hamburg Tel 040 3039595 0 Fax 040 30...

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