Agilent Technologies 34420A Bedienungsanleitung PDF herunterladen (Seite 2)

Specifications

Accuracy Specifications ±(% of reading + % of range)

Function Range

Test Current 24 Hour 90 Day 1 Year Temperature Maximum

23 °C ± 1 °C 23 °C ± 5 °C 23 °C ± 5 °C Coefficient per Lead

0 °C—18 °C Resistance

28 °C—55 °C

dc Voltage 1.0000000 mV

0.0025 + .0020 0.0040 + .0020 0.0050 + .0020 0.0004 + .0001

10.000000 mV

0.0025 + .0002 0.0040 + .0002 0.0050 + .0003 0.0004 + .0001

100.00000 mV 0.0015 + .0003 0.0030 + .0004 0.0040 + .0004 0.0004 + .00006

1.0000000 V 0.0010 + .0003 0.0025 + .0004 0.0035 + .0004 0.0004 + .00004

10.000000 V 0.0002 + .0001 0.0020 + .0004 0.0030 + .0004 0.0001 + .00002

100.00000 V

0.0010 + .0004 0.0025 + .0005 0.0035 + .0005 0.0004 + .00005

Resistance

1.0000000 Ω 10 mA 0.0015 + .0002 0.0050 + .0002 0.0070 + .0002 0.0005 + .00002 1 Ω

10.000000 Ω 10 mA 0.0015 + .0002 0.0040 + .0002 0.0060 + .0002 0.0005 + .00001 1 Ω

100.00000 Ω 10 mA 0.0015 + .0002 0.0040 + .0002 0.0060 + .0002 0.0005 + .00001 10 Ω

1.0000000 KΩ 1 mA 0.0015 + .0002 0.0040 + .0002 0.0060 + .0002 0.0005 + .00001 100 Ω

10.000000 KΩ 100 µA 0.0015 + .0002 0.0040 + .0002 0.0060 + .0002 0.0005 + .00001 1 KΩ

100.00000 KΩ 10 µA 0.0015 + .0003 0.0040 + .0004 0.0060 + .0004 0.0005 + .00002 1 KΩ

1.0000000 MΩ 5 µA 0.0020 + .0003 0.0050 + .0004 0.0070 + .0004 0.0006 + .00003 1 KΩ

Low Power 1.0000000 Ω 10 mA 0.0015 + .0002 0.0050 + .0002 0.0070 + .0002 0.0005 + .00002 1 Ω

Resistance

10.000000 Ω 10 mA 0.0015 + .0002 0.0040 + .0002 0.0060 + .0002 0.0005 + .00001 1 Ω

100.00000 Ω 1 mA 0.0015 + .0002 0.0040 + .0002 0.0060 + .0002 0.0005 + .00001 10 Ω

1.0000000 KΩ 100 µA 0.0015 + .0002 0.0040 + .0002 0.0060 + .0002 0.0005 + .00001 100 Ω

10.000000 KΩ 10 µA 0.0015 + .0004 0.0040 + .0004 0.0060 + .0004 0.0005 + .00001 1 KΩ

100.00000 KΩ 5 µA 0.0015 + .0012 0.0040 + .0015 0.0060 + .0015 0.0005 + .00003 1 KΩ

1.0000000 MΩ 5 µA 0.0020 + .0003 0.0050 + .0004 0.0070 + .0004 0.0006 + .00003 1 KΩ

Voltage Limited 10.000000 Ω 1 mA 0.0020 + .0002 0.0050 + .0002 0.0070 + .0002 0.0005 + .00002 1 Ω

Resistance

5, 6

100.00000 Ω 100 µA 0.0025 + .0002 0.0050 + .0002 0.0070 + .0002 0.0005 + .00002 5 Ω

Channel 1 / Channel 2 (dcV Ratio) Ratio Error in % = Channel 1 accuracy in % + Channel 2 accuracy in %

Channel 1-Channel 2 (dcV Difference) Difference Error = Channel 1 (% of reading + % of range) + Channel 2 (% of reading + % of range)

Temperature (resolution = 0.001 °C)

SPRT

SPRT Probe Accuracy + 0.003°C

RTD RTD Probe Accuracy + 0.05°C

Thermistor Thermistor Probe Accuracy + 0.1°C

Thermocouple

Thermocouple Probe Accuracy + 0.2°C

DC Voltage Noise

Observation Period

Range 2-Minute 2-Minute 24-Hour

RMS Peak-Peak Peak-Peak

Noise Noise Noise

1 mV 1.3 nVrms 8 nVpp 12 nVpp

10 mV 1.5 nVrms 10 nVpp 14 nVpp

100 mV 10 nVrms 65 nVpp 80 nVpp

1 V 100 nVrms 650 nVpp 800 nVpp

10 V 450 nVrms 3 µVpp 3.7 µVpp

100 V 11 µVrms 75 µVpp 90 µVpp

DC Voltage Noise vs Source Resistance

Source Analog Digital

Resistance Noise Filter Filter

0 Ω 1.3 nVrms Off Med

100 Ω 1.7 nVrms Off Med

1k Ω 4 nVrms Off Med

10k Ω 13 nVrms Off Med

100k Ω 41 nVrms On Med

1M Ω 90 nVrms On Slow

1 Specifications are for Channel 1 or Channel 2, after 2-hour warm-up, resolution

at 7.5 digits (100 NPLC), with FILTERS off. RESISTANCE specifications are for

4-wire Ohms or 2-wire ohms using Null. Without Null, add 0.2 Ohms additional

error in 2-wire Ohms function. For Analog Filter ON, add 0.002% of reading.

2 20% overrange on all ranges except 5% on Voltage Limited Resistance.

3 After using Math Null. If Null is not used add 100 nanoVolts.

4 Channel 1 only.

5 Channel 1 only. Resistance measurements, for NPLC <1, add 160 µΩ rms

noise.

6 Voltage limit can be set to 20 mV (default), 100 mV, or 500 mV. Measured

resistance plus Channel 1 HI and LO lead resistance is limited to 10.5 Ω on the

10 Ω range and 105 Ω on the 100 Ω range.

7 For 25 Ω SPRT with triple-point of water check within the last 4 hours.

Without the triple-point of water check, add 0.013°C for 24 hours, add 0.035°C

for

90 day, and add 0.055°C for 1 year specifications.

8 For fixed reference junction. Add 0.3ûC for external reference junction, add

2.0ûC for internal reference junction.

9 After a 2-hour warm-up, ± 1ûC, 6.5 digits (10 PLC) with Analog Filter Off and

Digital Filter Medium (50 reading average).

2-minute rms and 24-hour noise typical. For measurements using 0.02 or 0.2

NPLC, add 800 nV rms noise.

10 Typical noise behavior for Ch 1 or Ch 2, after 2 hour warm-up, 6.5 digits (10

PLC), 2 minute observation period on 1 mV range. For peak-to-peak noise, mul-

tiply rms noise by 6.

1 2 3 4

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