Fluke 3458/HFL User's Manual
Contents
1. 40 400 40 400 20 600 20 1200 20 3000 20 100 60 100 10 80 10 60 10 80 10 200 20 500 100 3000 1000 10000 10000 100 60 100 10 80 10 60 10 80 10 200 20 500 100 3000 1000 10000 10000 100 70 100 20 80 20 200 40 500 200 8508A vs 3458 HFL Functional amp Versatility Parameters Full Scale dc amp ac Voltage Fluke 8508A 3458 HFL Aal l 200mV 2V 20V 200V 1050Vrms 120mV 1 2V 12V 120V 1050Vdc ac 700Vrms Comments 8508A maintains gt 10Gohm input impedance to 20Vdc This compares with 12V on 3458 HFL The 8508A 1050Vrms measurement is often used to calibrate calibrators at 1000 Vrms output Full Scale dc amp ac current 200uA 2mA 20mA 200mA 2A amp 20A 100nA 1uA 120uA 1 2mA 12mA 120mA 1 05A 3458A HFL has lower current ranges with a sensitivity of 15A compared with 10pA on the 8508A the 3458 HFL datasheet does state that lower ranges have typical uncertainty only 8508A states typical above 10kHz and 2GOhm for resistance A 20Amp range on the 8508A improves calibration of Multi product calibrators This reduces the need for additional external shunts AC Measurement Bandwidth AC Voltage 1MHz 296 AC Current 100kHz 0 4 AC Voltage 1MHz 196 AC Voltage 10MHz 15 AC Current 100kHz 0 796 Typical A DMM with 10 MOhm input impe2. 0 200 300 200 600 200 4000 400 5500 1500 4000 200 1500 200 600 200 300 200 600 200 4000 400 5500 1500 4000 200 1500 200 600 200 300 200 600 200 4000 400 5500 1500 4000 200 1600 200 800 200 1000 200 3000 200 10000 400 250 100 250 100 600 100 4000 100 250 100 250 100 600 100 4000 100 250 100 250 100 600 100 4000 100 250 100 250 100 600 100 600 100 700 100 3000 100 800 100 2500 100 AC Voltage ppm of setting ppm of range relative to calibration standards used Calibration Interval 365 day 1 C of last TCAL Range Frequency HP3458 HFL 8508A 12 00000mV 1Hz 40Hz 300 300 40Hz 1kHz 200 110 1kHz 20kHz 300 110 20kHz 50kHz 1000 110 50kHz 100kHz 5000 110 100kHz 300kHz 40000 200 120 0000mV 1Hz 40Hz 70 40 40Hz 1kHz 70 20 1kHz 20kHz 140 20 20kHz 50kHz 300 20 50kHz 100kHz 800 20 100kHz 300kHz 3000 100 300kHz 1MHz 10000 100 1MHz 2MHz 15000 100 199 9999mV 1Hz 10Hz 120 70 10Hz 40Hz 120 70 40Hz 100Hz 100 20 100 20 100Hz 2kHz 100 20 100 10 2kHz 10kHz 100 20 100 20 10kHz 30kHz 300 40 300 40 30kHz 100kHz 700 100 700 100 1 2000000V 1Hz 40Hz 70 40 40Hz 1kHz 70 20 1kHz 20kHz 140 20 20kHz 50kHz 300 20 50kHz 100kHz 800 20 100kHz 300kHz 3000 100 300kHz 1MHz 10000 100 1MHz 2MHz 1
3. 19 9999999V 3 0 2 2 7 0 2 fosso eror fg 199 999999V 6 0 1 4 0 0 2 1050 0000V 4 0 0 5 0 0020 Z HP3458 HFL dc Volts 0 0015 9o Error 0 0010 8508A dc Volts 0 0005 1281 dc Volts 0 0000 7 24 0m volts to 1 050 volts DC Current ppm of setting ppm of range relative to calibration standards used Calibration Interval 365 day 1 C of last TCAL Range 1281 HP3458 HFL 8508A 20 000nA es 30 400 200000pA T p 20 40 e 2 000000uA oe O 20 10 p s 199 999990A 25 2 6 5 2 0 1 9999999mA 25 2 6 5 2 0 199 99999mA 5075 33 4 0 1 0500000A 110 10 1 9999999A 150 10 170 8 0 19 999999A EC HUNE EE ERE 380 20 12 000000mA 2075 19 999999mA 25 2 8 0 2 0 HP3458 HFL dc 0 1 Current 9 9 Error 0 01 8508A dc Current 0 001 1281 dc Current 0 0001 l l l 24 0n amps to 20 0 amps Resistance ppm of setting ppm of range relative to calibration standards used Calibration Interval 365 day 1 C of last TCAL Range 1281 HP3458 HFL 8508A 199999999 Ohm 1020 iu 1 307 E e 19 9999999 Ohm 12 1 0 7 0 0 7 120 00000 Ohm 845 199 999999 Ohm 8 0 3 7 0 0 25 1 2000000 kOhm 7 5 0 5 1 99999999 kOhm 6 0 3 7 0 0 25 paom H cese 8 19 9999999 kOhm 6 0 3 7 0 0 25 199 999999 kOhm 6 0 3 7 0 0 25 1 2000000 MOhm 15 2 1 99999999 MOhm 10 0 7 7 0 0 5 FP Tr i MUT RA 19 9999999
4. 5000 100 1 999999V 1Hz 10Hz 100 60 10Hz 40Hz 100 10 40Hz 100Hz 80 10 80 10 100Hz 2kHz 60 10 60 10 2kHz 10kHz 80 10 80 10 10kHz 30kHz 200 20 200 20 30kHz 100kHz 500 100 500 100 100kHz 300kHz 3000 1000 3000 1000 300kHz 1MHz 10000 10000 10000 10000 12 00000V 70 40 70 20 1kHz 20kHz 140 20 20kHz 50kHz 300 20 50kHz 100kHz 800 20 100kHz 300kHz 3000 100 300kHz 1MHz 10000 100 1MHz 2MHz 15000 100 S Range Frequency 19 99999V 1Hz 10Hz 10Hz 40Hz 40Hz 100Hz 100Hz 2kHz 2kHz 10kHz 10kHz 30kHz 30kHz 100kHz 100kHz 300kHz 300kHz 1MHz 120 0000V 1Hz 40Hz 40Hz 1kHz 1kHz 20kHz 20kHz 50kHz 50kHz 100kHz 100kHz 300kHz 300kHz 1MHz 199 9999V 1Hz 10Hz 10Hz 40Hz 40Hz 100Hz 100Hz 2kHz 2kHz 10kHz 10kHz 30kHz 30kHz 100kHz 100kHz 300kHz 300kHz 1MHz 1050 000V 1Hz 10Hz 10Hz 40Hz 40Hz 1kHz 40Hz 10kHz 1kHz 20kHz 10kHz 30kHz 20kHz 50kHz 30kHz 100kHz 50kHz 100kHz 80 10 60 10 80 10 200 20 500 100 3000 1000 10000 10000 80 10 60 10 80 10 200 20 500 100 3000 1000 10000 10000 80 10 200 20 500 100 AC Voltage ppm of setting ppm of range relative to calibration standards used Calibration Interval 365 day 1 C of last TCAL HP3458 HFL 200 40 200 20 200 20 350 20 1200 20 4000 100 15000 100 400
5. MOhm 20 4 0 9 0 5 0 120 00000 MOhm 500 10 199 999999 MOhm 200 45 30 50 1 2000000 GOhm 5000 10 1 99999999 GOhm 2000 450 500 500 HP3458 HFL Ohms Error 0 01 85084 Ohms 0 001 j 1281 Ohms 0 0001 400 0m Ohms to 200M Ohms AC Current ppm of setting ppm of range relative to calibration standards used Calibration Interval 365 day 1 C of last TCAL Range Frequency HP3458 HFL 8508A 120 0000pA 10Hz 20Hz 20Hz 45Hz 45Hz 100Hz 100Hz 5kHz 199 99990A 1Hz 10Hz 10Hz 5kHz 10Hz 10kHz 10kHz 30kHz 30kHz 100kHz 1 2000000mA 10Hz 20Hz 20Hz 45Hz 45Hz 100Hz 100Hz 5kHz 5kHz 20kHz 20kHz 50kHz 50kHz 100kHz 1 999999mA 1Hz 10Hz 10Hz 5kHz 10Hz 10kHz 10kHz 30kHz 30kHz 100kHz 12 00000mA 10Hz 20Hz 20Hz 45Hz 45Hz 100Hz 100Hz 5kHz 5kHz 20kHz 20kHz 50kHz 50kHz 100kHz 19 99999mA 1Hz 10Hz 10Hz 5kHz 10Hz 10kHz 10kHz 30kHz 30kHz 100kHz 120 0000mA 10Hz 20Hz 20Hz 45Hz 45Hz 100Hz 100Hz 5kHz 5kHz 20kHz 20kHz 50kHz 50kHz 100kHz 199 9999mA 1Hz 10Hz 10Hz 5kHz 10Hz 10kHz 10kHz 30kHz 1 050000A 10Hz 20Hz 20Hz 45Hz 45Hz 100Hz 100Hz 5kHz 5kHz 20kHz 20kHz 50kHz 1 999999A 10Hz 1kHz 10Hz 2kHz 1kHz 5kHz 2kHz 10kHz 10kHz 30kHz 200 200 200 100 500 200 1500 400 19 99999A 10Hz 2kHz 2kHz 10kHz 4000 200 1500 200 600 200 600 200 4000 200 1500 200 60
6. Multimeter Selection Guide Fluke 8508A amp Agilent 3458 HFL TECHNICAL INFORMATION When comparing two products features and specification using sales information itis often difficult to determine which product will meet the needs of your specific application This is mostly because each supplier will define specifications using alternate methods This Selection Guide will help you compare the specifications and features of the Fluke 8508A Reference multimeter with the nearest equivalent digital multimeter the Agilent 3458 HFL Both the 8508A and the special 3458 HFL multimeters are available through the Fluke sales channel The following pages summarize amp segment the features of each meter into the following three categories e Accuracy e Functionality amp Versatility e Ease of Use The Comments column found in the following table provides a brief explanation against each feature and its relevance to the intended metrology applications Further reference information 1 Agilent 3458A HFL Technical Data 1275558 D ENG N 2 Fluke 8508A Extended Specifications 1887212 D ENG N revA 3 12810perators Handbook 850090 issue 6 DC Voltage ppm of setting ppm of range relative to calibration standards used Calibration Interval 365 day 1 C of last TCAL Range 1281 HP3458 HFL 8508A Masonow eros T aos 199 999999mV 6 0 5 2 7 0 5 Psov soa Taso 1 99999999V 3 0 2 2 7 0 2 iosas soa Parvo
7. dance is generally not useful for precision ac measurement above 1MHz A 50 Ohm termination at these frequencies is more desirable The 8508A high frequency Current uncertainty will help maintain good TURs when calibrating Multi Product calibrators Full Scale Resistance 20 200 2000 2kO 20kQ 200kQ 2MO 20MO 200MQ 2GQ 20GQ eleven ranges 120 1200 1 2kO 12kQ 120kO 1 2MQ 12MQ 120M9 1 2GQ nine ranges 8508A has a wide resistance measurement range 8508A measurement resolution of 10nQ this compares with 10uQ on 3458 HFL 200 Ohm Resistance Range Selectable excitation current 10mA amp 1mA Fixed excitation current 10mA Errors due to self heating within the resistor under test are minimized when the multimeter low excitation current is maintained Use in conjunction with RTD or low resistance measurements 8508A vs 3458 HFL Functional amp Versatility Parameters Comments High Resistance Measurement compliance voltage Test Voltage or Full Scale stimulus 200V Test Voltage or Full Scale stimulus 1 2GQ 5V Reduces errors when performing high resistance measurement feature available 8508A 20MQ to 20GQ range only Tru Ohms or Offset Compensated Resistance technique Current Reversal Switched Current Current reversal reduces errors caused by thermal emfs as does switched current but reversal technique has the added benefit of reducing er
8. easurement support improved accuracy when calibrating calibrators with 4 wire sense output Remote switched GUARD Terminal IEEE controlled Manual Switch IEEE control of GUARD terminal helps fully automate calibration without need for manual switching Read rate High Speed 150 readings sec 5 5 digit resolution High Speed 100 000 reading sec 4 5 digit resolution High read rates are useful for some ATE applications where accuracy is not of high priority Calibration technique Individual Function and Range calibration Artifact Calibration amp Individual Function and Range calibration Both techniques have their merits 8508A and associated calibration technique provides full results traceability As found data is difficult to determine using 3458 HFL artifact calibration Artifact calibration provides a low cost solution for adjustment 8508A vs 3458 HFL Ease of Use Parameters Rear input switched remotely L zmmemem ETI am hase s E m tot t 1 Comments The 3458 HFL must be switched manually the AC voltage amp current using IEEE 488 commands ves NR using a front panel button Instrument simultaneously displays Frequency as well as Yes Selectable Requires further commands or key presses to determine frequency Two channel Ratio reference measurement Yes 8508A 01 only Yes but limit
9. ed to 12Vdc on the Reference input 8508A can accept and compare dc to dc ac to ac dc to ac Resistance to Resistance amp Temperature to Temperature Auto ranging allows inputs of different magnitude to be connected and compared Feature supports the replacement of Kelvin Varley dividers resistance bridge and ac dc transfer standards Able to load SPRT PRT calibration linearization coefficients and display temperature and resistance simultaneously Yes up to100 No 8508As displays resistance and temperature simultaneously Constant energization current on Resistance Ratio function Yes No the 3458 HFL does not measure resistance ratio When measuring Resistance in Ratio mode not only is the current the same but it is reversed to help reduce thermal offsets GPIB Remote interface IEEE 488 2 IEEE 488 1 Self cal or ACAL function Not Required Required to meet specification 8508A components are selected for minimum drift over time and temperature Therefore does not require frequent internal calibration when conditions exceed TCAL specification 8508A Options and Accessories Model 8508A 8508A 01 Accessories 8508A SPRT 8508A PRT 8508A LEAD Y8508 Y8508S 8508A 7000K 1883673 1256990 Model 3458 HFL E 3458 HFLM E 3458 HFL E AC 3458 HFLM E 120 AC Description 8 5 digit Reference Multimeter 8 5 digit Reference Multimeter with Rear Inpu
10. rors due to self heating Store RTD temperature coefficients Supports a wide variety of PRT amp SPRT sensors Not Available PRT calibration coefficients are stored max 100 probes within the 8508As internal memory ACAL Not Required Required every 24hrs or 1 C of last ACAL 8508A Precision without the need for internal drift corrections ACAL will overwrite last stored value and cannot be retrieved This might be important for users that require as found data Auto zero A zero Range zero is enabled by operator A zero should be enabled to maintain specification Auto zero must be enabled on 3458A HFL if environment exceeds 1 C of last Input zero Zero nulling meters before measurement is accepted metrology practice Low impedance low Current measurement technology Yes No 8508A is less intrusive when compared with conventional meters when measuring low magnitude current sources The 8508A input impedance on the 200uA range is 60 Ohm This low impedance mimics technology normally found in Electrometers and picoampmeters This compares with 5k 10k Ohm on other DMMs ACV measurement technique Analog True rms Analog Synchronous and Random sampled ac Digitize sub sampled techniques are useful when measuring low frequency 1Hz input signals ACV amp DCV 4 wire input Selectable 2 and 4 wire measurement Unavailable 4 wire sense m
11. t Ratio measurement Standard Platinum Resistance Thermometer Platinum Resistance Thermometer Comprehensive Measurement Lead Kit Rack Mount Kit Rack Mount Kit Slides Calibration kit comprising 1GOhm Standard and connecting leads UKAS Accredited Certification NVLAP Accredited Certification Description Special Lab DMM English Special Lab DMM English with 001 Extended Memory Option Special Lab DMM English Accredited Calibration Special Lab DMM English with 001 Extended Memory Option Accredited Calibration Notes
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