Fluke 3458-HFL, 8508A User Manual
Multimeter Selection Guide
Fluke 8508A & Agilent 3458/HFL
When comparing two products features and specification using sales information
it is 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 & segment the features of each meter into the
following three categories.
• Accuracy
• Functionality & Versatility
• 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 rev A
3) 1281Operators Handbook – 850090 issue 6
TECHNICAL INFORMATION
DC Voltage
Calibration Interval 365 day, ±1°C of last TCAL
±(ppm of setting + ppm of range), relative to calibration standards used.
Range 1281 HP3458/HFL 8508A
120.00000mV - 4 + 3 -
199.999999mV 6 + 0.5 - 2.7 + 0.5
1.20000000V - 3 + 0.3 -
1.99999999V 3 + 0.2 - 2.7 + 0.2
12.000000V - 3 + 0.05 -
19.9999999V 3 + 0.2 - 2.7 + 0.2
120.00000V - 5 + 0.3 -
199.999999V 6 + 0.1 - 4.0 + 0.2
1050.0000V 6 + 0.1 5 + 0.1 4.0 + 0.5
DC Current
Calibration Interval 365 day, ±1°C of last TCAL
±(ppm of setting + ppm of range), relative to calibration standards used.
Range 1281 HP3458/HFL 8508A
120.000nA - 30 + 400 -
1.200000µA - 20 + 40 -
12.000000µA - 20 + 10 -
120.00000µA - 20 + 8 -
199.99999µA 25 + 2 - 6.5 + 2.0
1.2000000mA - 20 + 5 -
1.9999999mA 25 + 2 - 6.5 + 2.0
12.000000mA - 20 + 5 -
19.999999mA 25 + 2 - 8.0 + 2.0
120.00000mA - 35 + 5 -
199.99999mA 50 + 5 - 33 + 4.0
1.0500000A - 110 + 10 -
1.9999999A 150 + 10 - 170 + 8.0
19.999999A - - 380 + 20
Resistance
Calibration Interval 365 day, ±1°C of last TCAL
±(ppm of setting + ppm of range), relative to calibration standards used.
Range 1281 HP3458/HFL 8508A
1.99999999 Ohm - - 10 + 2.0
12.00000 Ohm - 10 + 5 -
19.9999999 Ohm 12 + 1.0 - 7.0 + 0.7
120.00000 Ohm - 8 + 5 -
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
12.000000 kOhm - 7.5 + 0.5 -
19.9999999 kOhm 6 + 0.3 - 7.0 + 0.25
120.00000 kOhm - 7.5 + 0.5 -
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
12.000000 MOhm - 50 + 10 -
19.9999999 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
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