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4-1

Chapter 4

Operator Maintenance

Title

Page

Introduction .......................................................................................................... 4-3

How to Replace the Mains Input Fuse ............................................................. 4-3

How to Clean the Air Filter ............................................................................. 4-3

How to Clean the Product ................................................................................ 4-4

Replaceable Parts ................................................................................................. 4-4

Содержание 52120A

Страница 1: ...2012 2012 Fluke Corporation All rights reserved Specifications are subject to change without notice All product names are trademarks of their respective companies 52120A Transconductance Amplifier Use...

Страница 2: ......

Страница 3: ...Features 1 12 Input and Output Connections 1 13 Input Terminals 1 13 Output Terminals 1 14 Product Connection Cables 1 14 Safe Working Practice 1 15 How to Connect the Product to an External Circuit...

Страница 4: ...iers 2 12 Greater than 120 Amps Operation 2 12 Closed Loop Operation 2 14 Multi Phase Current Outputs 2 17 How to Use the Accessory Coils with the Product 2 19 Current Hz Profile 2 19 Current Cable Co...

Страница 5: ...urden Resistor Verification 5 13 Amplitude Specification Limits Pass Fail Analysis 5 13 Calibration Adjustment Standalone Mode 5 14 Equipment Set Up 5 14 How to Correct for Shunt Resistance Error 5 16...

Страница 6: ...52120A Users Manual iv...

Страница 7: ...cation 3 12 4 1 Approved Replacement Fuses 4 3 4 2 Replaceable Parts 4 4 5 1 Calibration Equipment 5 3 5 2 Nominal Resistance for A40B Shunts 5 6 5 3 2 Amp Range Verification 5 8 5 4 20 Amp Range Veri...

Страница 8: ...52120A Users Manual vi...

Страница 9: ...2 9 2 4 5520A and 52120A Connections 2 11 2 5 Master to Slave Connections 2 13 2 6 Two Amplifier Outputs Connected in Parallel 2 14 2 7 Feedback Cable Connections 2 15 2 8 Multiple Amplifier Connectio...

Страница 10: ...52120A Users Manual viii...

Страница 11: ...13 Input Terminals 1 13 Output Terminals 1 14 Product Connection Cables 1 14 Safe Working Practice 1 15 How to Connect the Product to an External Circuit 1 15 How to Disconnect the Product from an Ex...

Страница 12: ...52120A Users Manual 1 2...

Страница 13: ...240 A or 360 A Push current with compliance voltage of 4 5 V rms or 6 4 V peak Drive inductive loads to 1 mH Drive optional current coils to deliver test currents of 3000 A or 6000 A How to Contact F...

Страница 14: ...ook for cracks or missing parts Carefully look at the insulation around the terminals Use only the mains power cord and connector approved for the voltage and plug configuration in your country and ra...

Страница 15: ...V ac peak or 60 V dc Do not use the Product if it operates incorrectly Do not use test leads if they are damaged Examine the test leads for damaged insulation Do a continuity test on the test leads Sy...

Страница 16: ...ers Manual on the included CD ROM PN 3977736 52120A Getting Started Manual PN 3977724 One of each manual shown above is shipped with the instrument You can order more copies of the manuals from Fluke...

Страница 17: ...nductance Amplifier 52120A Line Power Cord Per ship to location see Table 1 3 52120A Getting Started Manual 3977724 52120A Users Manual on CD ROM 3977736 Service Information Each Product is warranted...

Страница 18: ...insulation shows signs of wear Make sure the ground conductor in the mains power cord is connected to a protective earth ground Disruption of the protective earth could put voltage on the chassis tha...

Страница 19: ...il 3841358 Other no plug fitted 1998211 Note Typical maximum power requirement of the Product at 115 V is 1500 VA Make sure the mains supply outlet is rated for this load and has a grounded three pron...

Страница 20: ...s Output on indicator In STBY standby mode these two indicators will be Amber In OPR operate mode the indicator for the selected terminals will be illuminated green M The OPR Operate key places the Pr...

Страница 21: ...t A V Sets the INPUT to receive voltage or current INPUT OVER RANGE Indicator Comes on when the input exceeds the limit O N Sets LCOMP on or off LCOMP ON is used for highly inductive loads See the Spe...

Страница 22: ...t Used to control the Product from a MASTER unit Either another 52120A or a 6100 series Electrical Power Standard Control Output Used to control another 52120A SLAVE through its control Input This Pro...

Страница 23: ...nput terminals of the Product are 4 mm binding posts Table 1 6 shows the maximum voltage and current that can safely be applied to the input terminals W Caution To prevent damage to the Product do not...

Страница 24: ...t a connector or terminal other than the mains input connector to line power Product Connection Cables Five signal cables are shipped with the Product All are rated for 600 V Two interchangeable low c...

Страница 25: ...st leads to the HI and LO terminals of the Product 5 Connect the test leads to the external circuit 6 Push M to set the Product to operate How to Disconnect the Product from an External Circuit 1 Remo...

Страница 26: ...No 61010 1 04 ANSI UL 61010 1 2004 EMC Complies with EN 61326 1 2006 CISPR 11 EN 55011 2004 FCC rules part 15 sub part B Class A Indoor user only Pollution degree 2 Agency Approvals P Electrical Perfo...

Страница 27: ...kHz to 10 kHz 33 V rms 47 V pk limited 2 A rms no transient overvoltages Performance Specifications Operated within 6105A or 6100B Control Loop Sine or Harmonic Input all current ranges The current a...

Страница 28: ...0 Hz to 69 Hz 0 005 69 Hz to 180 Hz 0 009 180 Hz to 450 Hz 0 020 450 Hz to 850 Hz 0 035 850 Hz to 3 kHz 0 250 3 kHz to 6 kHz 0 500 Maximum load dependent phase shift 0 001 60 Hz increasing linearly to...

Страница 29: ...ge of Output of Range LCOMP OFF 2 LCOMPON 3 2 Amp Range DC 0 010 0 005 0 005 10 Hz to 65 Hz 0 015 0 070 0 300 65 Hz to 300 Hz 0 030 0 070 0 500 300 Hz to 1 kHz 0 100 0 070 3 500 1 kHz to 3 kHz 0 300 0...

Страница 30: ...0 Not Specified 6 kHz to 10 kHz 2 330 0 470 Not Specified 120 Amp Range DC 0 008 0 004 0 004 10 Hz to 65 Hz 0 012 0 016 0 390 65 Hz to 300 Hz 0 023 0 023 0 700 300 Hz to 1 kHz 0 078 0 078 3 500 1 kHz...

Страница 31: ...ecreases to approximately 0 8 A at 10 kHz 2 Includes coil clamp interaction 52120A COIL 6 KA 50 Turn Coil Number of turns 50 Minimum flexible probe length 500 mm Maximum input current 120 A continuous...

Страница 32: ...52120A Users Manual 1 22...

Страница 33: ...Key Selections 2 9 Status Indicators 2 9 Voltage Compliance Indictors 2 10 Three Red LEDs Together or Product Self Shutdown 2 10 How to Use the Product 2 10 Current Amplifier Operation 2 10 Stand alon...

Страница 34: ...52120A Operators Manual 2 2...

Страница 35: ...nly used confidence probabilities for this type of product are shown in Table 2 1 Table 2 1 Confidence Probabilities Confidence Probability Coverage Factor Divisors Multipliers 95 2 00 99 2 58 Not Sta...

Страница 36: ...connection to an external power supply or earth is mostly immune to common mode current This is because there is nowhere for the common mode current to flow Current transformers are also immune to com...

Страница 37: ...MPLIANCE MIN STATUS MASTER UNIT SLAVE UNIT REMOTE OVER TEMP L2 PHASE L1 PHASE L3 PHASE N PHASE INPUT INPUT OVER RANGE L COMP POWER 10V PK MAX OPTION POWER OUTPUT 12V DC 52120A TRANSCONDUCTANCE AMPLIFI...

Страница 38: ...he external circuit When you connect an external voltage to the current output terminals you cannot connect the output current low connector to ground for common mode protection W Caution To prevent d...

Страница 39: ...OWER OUTPUT 12V DC HI LO HI LO Line Side Control Cable Load Side Shunt Resistor Vin L L N N Fluke 52120A Fluke 6105A gpp012 eps Figure 2 2 Product Connections to a Watthour Meter The capacitance betwe...

Страница 40: ...rrent HI and LO terminals is necessary The short loop connector has very low inductance The low inductance means you can do clamp meter performance tests at higher frequencies than is possible with lo...

Страница 41: ...ator Description MASTER UNIT No other Product or the Control Input of a second Product is connected to the control output of this Product This Product is the master and controls other Products as slav...

Страница 42: ...touch with a Fluke Service center representative How to Use the Product One amplifier can source a single phase ac current waveform to a maximum of 120 amps or 100 amps dc current The Product can be s...

Страница 43: ...LIANCE MIN STATUS MASTER UNIT SLAVE UNIT REMOTE OVER TEMP L2 PHASE L1 PHASE L3 PHASE N PHASE INPUT INPUT OVER RANGE L COMP POWER 10V PK MAX OPTION POWER OUTPUT 12V DC HI LO HI LO HI LO 30 0V CA T 60 0...

Страница 44: ...urrent out of the Product The input voltage range of the Product is 0 volts to 2 volts To output 15 amps from the Product on the 20 amp range set the input voltage to 1 5 volts See the specifications...

Страница 45: ...the second the slave Connect the input signal to the master Product front panel terminals The second Product senses the input signal through the control cable The two Products are controlled through t...

Страница 46: ...nd supply a more accurate current signal To connect the feedback circuit connect one end of the control cable to the Control Input connector on the rear panel of the Product Connect the other end of t...

Страница 47: ...B Control Loop section in the specifications of Chapter 1 These specifications include the accuracy of the 6100B or 6105A in this 6105A controlled mode of operation A maximum of three Products can be...

Страница 48: ...Manual 2 16 Fluke 6105A Fluke 52120A 1 Fluke 52120A 2 gpp008 eps Figure 2 8 Multiple Amplifier Connections Note The output of the 6105A is connected to the amplifiers through the control cable from th...

Страница 49: ...ree Products in parallel are the same as for the Product Multi Phase Current Outputs For mutli phase current output use a 6105A for one phase and a 6106A for all other phases The 6105A controls all 61...

Страница 50: ...e 6106A 2 To 52120A Phase 2 To 52120A Phase 2 gpp010 eps Figure 2 9 6105A to 6106A Connections 3 Connect a control cable between the Current Amplifier Control Output connector on the rear panel of the...

Страница 51: ...ce The voltage compliance limit is a function of coil impedance With a voltage compliance limit of 4 5 volts in the Product the maximum impedance that the Product can supply 120 A into is 0 0375 The m...

Страница 52: ...52120A Operators Manual 2 20...

Страница 53: ...ress 3 3 Power On and RST Conditions 3 4 SCPI Status Registers 3 4 Remote Commands 3 5 Supported Common Commands 3 6 Supported SCPI Commands 3 6 SCPI Command Summary 3 7 52120A SCPI Command Details 3...

Страница 54: ...52120A Users Manual 3 2...

Страница 55: ...and IEEE Std 488 2 1988 How to Set the Bus Address The address that the product responds to on the IEE 488 1 bus is set by switches on the rear panel See Figure 3 1 The right hand 5 of these switches...

Страница 56: ...ameters are lost when you turn off the Product Table 3 1 Power On and RST Defaults Item Power On State RST State Input Terminals Voltage Voltage Range 2A 2A Output Terminals High High Load Compensatio...

Страница 57: ...ter Enable Register ESR ESE value ESE OR 0 Not Used Query Error 2 Device Error 3 Execution Error 4 5 Command Error 7 Not Used Power On Not Used Status Byte Summary Register Enable Register Serial Poll...

Страница 58: ...ected device operations have completed OPT This query command gets a list of all the detectable options that are installed in the Product Options that are not installed are identified with an ASCII 0...

Страница 59: ...SCPI commands Gets the SCPI version installed in the Product Gets the earliest error in the error queue Path the chain function Gets number of units in chain Gets instrument identification Path to inp...

Страница 60: ...ueries the 52120A 52120A SCPI Command Details All SCPI commands recognized by the Product are contained in this section Each command has a description and syntax rules CALibration ADJust cpd nrf nrf D...

Страница 61: ...on Gets the number of units in the chain Example CHA FITT Get back a number from 1 to n CHAin IDN nrf Desription Gets the identification string of an instrument in the chain Parameter nrf 1 to 10 Inde...

Страница 62: ...n Sets or gets the state of the LCOMP inductive load compensation function Parameters bool ON or 1 Turns on LCOMP OFF or 0 Turns off LCOMP Example CURR LCOM ON LCOMP on CURR LCOM Gets back 1 or 0 SOUR...

Страница 63: ...P TERMinal MODE cpd Description Sets or gets the state of which output terminals are used for different ranges Parameters cpd HIGH Output all ranges on the high terminals AUTO Output the 2 A and 20 A...

Страница 64: ...s command when it is necessary to verify an adjustment at points not available in the calibration mode A change of range after you use this command removes this special range from the dropdown list be...

Страница 65: ...3 13 For a system made up of a 6100A and one 6101A with an 80A and bandwidth current option installed OPT would respond with 0 0 0 3 0 0 0 0 Note The bandwidth and 50mR shunt options are only used on...

Страница 66: ...52120A Users Manual 3 14...

Страница 67: ...4 1 Chapter 4 Operator Maintenance Title Page Introduction 4 3 How to Replace the Mains Input Fuse 4 3 How to Clean the Air Filter 4 3 How to Clean the Product 4 4 Replaceable Parts 4 4...

Страница 68: ...52120A Users Manual 4 2...

Страница 69: ...Switch the Product off with the rear panel main power ON OFF switch 2 Remove the power cord from the mains input connector 3 Use a flat blade screwdriver to turn the fuse holder cap counterclockwise...

Страница 70: ...dampened with water or a non abrasive solution that will not damage plastic W Caution To prevent damage to the Product do not use aromatic hydrocarbons or chlorinated solvents to clean the Product The...

Страница 71: ...den Resistor Verification 5 13 Amplitude Specification Limits Pass Fail Analysis 5 13 Calibration Adjustment Standalone Mode 5 14 Equipment Set Up 5 14 How to Correct for Shunt Resistance Error 5 16 A...

Страница 72: ...52120A Users Manual 5 2...

Страница 73: ...ify the Product to full specification when connected to a 6105A is not available commercially A procedure to do a confidence check is included in this manual But to make correction adjustments for ope...

Страница 74: ...E MIN STATUS MASTER UNIT SLAVE UNIT REMOTE OVER TEMP L2 PHASE L1 PHASE L3 PHASE N PHASE INPUT INPUT OVER RANGE L COMP POWER 10V PK MAX OPTION POWER OUTPUT 12V DC 52120A TRANSCONDUCTANCE AMPLIFIER HI L...

Страница 75: ...edure below the Fluke A40B shunts make a voltage from the current that flows through them Use the formula that follows to calculate the equivalent current value Equivalent current value 8508A measurem...

Страница 76: ...Rear Input option so you do not have to change connections in the procedure This procedure limits measurement uncertainty of the reference system to the linearity and short term stability of the 5720A...

Страница 77: ...input and then measure through the A40B with the 8508A The c and z stores are preloaded with the expected voltage output from the shunt For all of the shunts the output is 0 8 when the input is full r...

Страница 78: ...than 50 of Product range let the shunt become stable for a minimum of five minutes Set the DMM to rear input Turn off the m c and z and math functions on the DMM Let the measurement become stable for...

Страница 79: ...A 0 2600 0 0040 25 1 0 8 V 10 kHz 100 Rear 2 A Reference level 2 V 10 kHz 100 Front 2 A 6 0000 0 0040 25 1 20 Amp Range Verification 1 Push S on the Product and the 5720A 2 Connect the 20 A shunt betw...

Страница 80: ...ading and Enter to store the last measurement in the z and c stores of the DMM Turn on the c and z math functions on the DMM Note The DMM measurement must be 0 000000 V plus a few digits of noise Turn...

Страница 81: ...Push D on the Product 4 Set the 5720A output to 0 6 V dc 5 Set the DMM to front input 6 Set the 5720A output to 0 6 V dc 7 Set the DMM m store to the 100 A shunt correction factor 8 Set the DMM c and...

Страница 82: ...r and show the measurement in percent Set the 5720A to the values in the row below the reference level row Set the DMM to front input Let the measurement become stable and then write in the measured e...

Страница 83: ...urn on the m c and z and math functions on the DMM 9 Set the 5720A output to the values in Table 5 6 and record the measured error Table 5 6 Burden Resistor Verification Points 5720A Output 8508A ACV...

Страница 84: ...ructions It is recommended that you do the verification procedure above to find out if adjustments are necessary Do a full verification after adjustments are made Equipment Set Up To set up the test e...

Страница 85: ...ANCE MIN STATUS MASTER UNIT SLAVE UNIT REMOTE OVER TEMP L2 PHASE L1 PHASE L3 PHASE N PHASE INPUT INPUT OVER RANGE L COMP POWER 10V PK MAX OPTION POWER OUTPUT 12V DC 52120A TRANSCONDUCTANCE AMPLIFIER H...

Страница 86: ...instructions for front panel control on the Product The remote commands are contained in Chapter 3 Adjustments Notes Two parameters are necessary for each adjustment measured value and target value Ta...

Страница 87: ...000008 V and 0 000008 V verify the test equipment controls and connections Then do the offset procedure again 9 Set the DMM z store to the 2 A shunt resistance value 10 Turn on the z store on the DMM...

Страница 88: ...t of the DMM See Figure 5 2 37 Set the DMM to the DCV function on the 1V range 38 Set the DMM to Resolution 6 39 Turn off all DMM Math functions 40 After the DMM measurement settles push the Offset ke...

Страница 89: ...shunt and 2 V at 6 kHz adjustment point 64 Push M on the 5720A 65 Push M on the Product 66 Write the value shown in the DMM in the Measured Current column of Table 5 7 67 Send the command CAL ADJ FLA...

Страница 90: ...M on the 5720A 91 Push M on the Product 92 Write the values shown on the DMM in the Measured Current column of Table 5 7 Calculate the average amplitude of the absolute positive and negative values as...

Страница 91: ...A 2 V dc 20 A Gain M M M 2 20 A M 20A 200 mA dc M 20A 200 mA dc 2 A Gain M M M 2 20 A 20 A Flat 20A 2 V 6 kHz 20 A Output Off 100A Off 120 A Offset 100A 0 V dc 0 A M 100A 1 0 V dc M 100A 1 0 V dc 120...

Страница 92: ...ear output must be adjusted so errors are no larger than specification for the confidence checks below to be accurate The Power Meter is used as a check reference standard for power line frequencies b...

Страница 93: ...Ext 120A 120 A 60 To calculate phase angle from PF or VA and watts PF Watts VA error cos 1 PF For example if the power meter shows PF 0 499894 error cos 1 0 499894 60 0 007 Verify Amplitudes at DC an...

Страница 94: ...zero amplitude 19th harmonic at 0 6 A 2 Fundamental 57 Hz zero amplitude 50th harmonic at 0 6 A 3 Fundamental 57 Hz zero amplitude 99th harmonic at 0 4 A 20 Amp Range 1 Set the DMM to the DCV function...

Страница 95: ...t 4 A 120 Amp Range 1 Set the DMM to the DCV function and the 2 V range 2 Set the DMM m store to the 100 A shunt correction factor 3 Set the DMM c and z stores to 0 4 4 Turn on the m c and z and math...

Страница 96: ...specification of the Clarke Hess 6000 has a specification that is wider than the specification for the Product below 180 Hz 1 Set the 6105A voltage output to 23 V on the 23 V range 2 Connect the 6105A...

Страница 97: ...2 Fundamental zero amplitude 99th harmonic at 4 A 9 Connect the 100 A shunt between the 6105A and the second input to the phase meter 10 Set the 6105A range to 1 x Ext 120A 11 Set the current frequenc...

Страница 98: ...ale 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 040 303...

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