Fluke 8845A User Manual

Fluke 8845A/8846A

Digital Multimeters

Extended Speciﬁcations

The Fluke 8845A and 8846A 6.5 digit precision multimeters have the precision and versatility to handle your most demanding measurements, on the bench or in a system. These meters are both high performance and feature rich, yet also remarkably easy to use.

Features at a glance

6.5 digit resolution

•

Basic V dc accuracy of up to 0.0024 % (1 yr.)

•

Dual display

•

100 μA to 10 A current range, with up to 100 pA resolution

•

Wide ohms ranges from 10 W to 1 GW with up to 10 μW resolution

•

2 x 4 ohms 4-wire measurement technique

•

Both models measure frequency and period

•

8846A also measures capacitance and temperature

•

USB memory drive port (8846A)

•

Fluke 45 and Agilent 34401A emulation

•

Graphical display

•

Trendplot™ paperless recorder mode, statistics, histogram

•

CAT I 1000 V, CAT II 600 V

•

These digital multimeters perform the functions you would expect to see in a multifunction DMM, including measuring volts, ohms, and amps, with performance that exceeds expectations. Basic V dc accuracy of up to 0.0024 %, 10 A current range, and a wide ohms range from 10 W to 1 GW with up to 10 μW resolution give you an unbeatable combination of measurement capability.

You can also use the 8845A and 8846A to measure temperature, capacitance, period, and frequency—the functions of a counter, capacitance meter, and thermometer are built in for unparalleled versatility. Extend the meters’ utility even more with their graphical display modes, including Trendplot™ paperless recorder mode, statistics and histograms—features you won’t find on other multimeters.

Of course, these meters are also durable and dependable, features you expect from any Fluke meter. This unique combination of features and performance makes the 8845A and 8846A an unbeatable value for a wide variety of applications, including manufacturing test, research and development, and service.

General Specifications

Power

Voltage

100 V Setting............................................................. 90 V to 110 V

120 V Setting............................................................. 108 V to 132 V

220 V Setting............................................................. 198 V to 242 V

240 V Setting............................................................. 216 V to 264 V

Frequency........................................................................ 47 Hz to 440 Hz. Automatically sensed at power-on.

Power Consumption....................................................... 28 VA peak (12 Watt average)

Dimensions

Height .............................................................................. 88 mm (3.46 in.)

Width ............................................................................... 217 mm (8.56 in.)

Depth................................................................................ 297 mm (11.7 in.)

Weight ............................................................................. 3.6 kg (8.0 Ibs.)

Shipping Weight ............................................................5.0 kg (11.0 lbs)

Display

Vacuum Fluorescent Display, dot matrix

Environment

Temperature

Operating.................................................................... 0 °C to 55 °C

Storage........................................................................ -40 °C to 70 °C

Warm Up..................................................................... 1 hour to full uncertainty specifications

Relative Humidity (non-condensing)

Operating.................................................................... 0 °C to 28 °C <90 %

28 °C to 40 °C <80 % 40 °C to 55 °C <50 %

Storage........................................................................ -40 °C to 70 °C <95 %

Altitude

Operating.................................................................... 2,000 Meters

Storage........................................................................ 12,000 Meters

Vibration and Shock......................................................Complies with Mil-T-28800F Type III, Class 5 (Sine Only)

Safety

Designed to comply with IEC 61010-1:2000-1, UL 61010-1A1, CAN/CSA-C22.2 No. 61010.1, CAT I 1000V/CAT II 600V

EMC

Designed to comply with IEC 61326-1:2000-11 (EMC) when used with shielded communications cables. This Meter has shown susceptibility to radiated frequencies greater than 1 V/m from 250 to 450 MHz in the 100 μA range.

Triggering

Samples per Trigger..................................................1 to 50,000

Trigger Delay..............................................................0 S to 3600 S; in 10 µS increments

External Trigger Delay..............................................<1 mS

External Trigger Jitter...............................................<500 µS

Trigger Input..............................................................TTL Levels

Trigger Output............................................................5 V maximum. (Open collector)

Memory

8845A.........................................................................5,000 measurements, Internal only

8846A.........................................................................5,000 measurements, Internal and up to 2 Gigabyte capacity with USB memory module

(available separately. see “Accessories”) through front-panel USB port

Math Functions

Zero, dBm, dB, MX+B, Trend-plot, Histogram, Statistics (min/max/average/standard deviation), and Limit Test

8845A and 8846A Fluke Corporation 1

Electrical

Input Protection............................................................1000 V all ranges

Overrange.......................................................................20 % on all ranges except 1000 V dc, 1000 V ac (8846A),

750 V ac (8845A), Diode, and 10 A ranges

Remote Interfaces

RS-232 (RS-232 to USB cable available to connect the Meter to a PC USB port. See accessories) IEEE 488.2 LAN

Warranty

One year

Electrical Specifications

Accuracy specifications are valid for 6½ digit mode after at least a 1-hour warm-up with Auto Zero enabled. 24-hour specifications are relative to calibration standards and assume a controlled electromagnetic environment per EN 61326-1:2000-11

DC Voltage Specifications

Maximum Input.............................................................1000 V on any range

Common Mode Rejection............................................140 dB at 50 or 60 Hz ± 0.1 % (1 kΩ unbalance)

Normal Mode Rejection ..............................................60 dB for NPLC of 1 or greater with dc filter off and power line frequency ±0.1 %

100 dB for NPLC of 1 or greater with dc filter on and power line frequency ±0.1 %

Measurement Method..................................................Multi-ramp A/D

A/D Linearity.................................................................0.0002 % of measurement + 0.0001 % of range

Input Bias Current........................................................<30 pA at 25 °C

Autozero Off Operation...............................................Following instrument warm-up at calibration temperature ±1 °C and less than 10

minutes, add error: 0.0002 % range additional error + 5 μV.

Settling Considerations..............................................Measurement settling times are affected by sourc e impedance, cable dielectric

Input Characteristics

Range

100 mV 100.0000 mV 10 µV 1 µV 100 nV 10 MΩ or >10 GΩ 1 V 1.000000 V 100 µV 10 µV 1 µV 10 MΩ or >10 GΩ 10 V 10.00000 V 1 mV 100 µV 10 µV 10 MΩ or >10 GΩ 100 V 100.0000 V 10 mV 1 mV 100 µV 10 MΩ ±1% 1000 V 1,000.000 V 100 mV 10 mV 1 mV 10 MΩ ±1%

[1] Inputs beyond ±14 V are clamped through 200 kΩ typical. 10 MΩ is default input impedance.

Full Scale

(6½ Digits)

4½ Digits 5½ Digits 6½ Digits

8846A Accuracy

Accuracy is given as ± (% measurement + % of range)

Range

100 mV 0.0025 + 0.003 0.0025 + 0.0035 0.0037 + 0.0035 0.0005 + 0.0005 1 V 0.0018 + 0.0006 0.0018 + 0.0007 0.0025 + 0.0007 0.0005 + 0.0001 10 V 0.0013 + 0.0004 0.0018 + 0.0005 0.0024 + 0.0005 0.0005 + 0.0001 100 V 0.0018 + 0.0006 0.0027 + 0.0006 0.0038 + 0.0006 0.0005 + 0.0001 1000 V 0.0018 + 0.0006 0.0031 + 0.001 0.0041 + 0.001 0.0005 + 0.0001

24 Hour

(23 ± 1 °C)

(23 ± 5 °C)

8845A Accuracy

Accuracy is given as ± (% measurement + % of range)

Range

100 mV 0.003 + 0.003 0.004 + 0.0035 0.005 + 0.0035 0.0005 + 0.0005 1 V 0.002 + 0.0006 0.003 + 0.0007 0.004 + 0.0007 0.0005 + 0.0001 10 V 0.0015 + 0.0004 0.002 + 0.0005 0.0035 + 0.0005 0.0005 + 0.0001 100 V 0.002 + 0.0006 0.0035 + 0.0006 0.0045 + 0.0006 0.0005 + 0.0001 1000 V 0.002 + 0.0006 0.0035 + 0.0010 0.0045 + 0.0010 0.0005 + 0.0001

24 Hour

(23 ± 1 °C)

(23 ± 5 °C)

characteristics, and input signal changes.

Resolution

90 Days

1 Year

(23 ± 5 °C)

1 Year

(23 ± 5 °C)

Temperature

Coefficient/ °C

Outside 18 to 28 °C

Temperature

Coefficient/ °C

Outside 18 to 28 °C

Input Impedance

[1] [1] [1]

2 Fluke Corporation 8845A and 8846A

Additional Errors

Digits NPLC Additional Noise Error

6½ 100 0 % of range 6½ 10 0 % of range 5½ 1 0.001 % of range 5½ .2 0.001 % of range + 20 μV 4½ 0.02 0.01 % of range + 20 μV

AC Voltage Specifications

AC Voltage specifications are for ac sinewave signals >5 % of range. For inputs from 1 % to 5 % of range and <50 kHz, add an additional error of 0.1 % of range, and for 50 to 100 kHz, add 0.13 % of range.

Maximum Input.............................................................750 V rms or 1000 V peak (8845A), 1000 V rms or 1414 V peak (8846A) or 8 x 10

Volts-Hertz product (whichever is less) for any range.

Measurement Method..................................................AC-coupled true-rms. Measures the ac component of input with up to 1000 V dc bias on

any range.

AC Filter Bandwidth:

Slow.............................................................................3 Hz – 300 kHz

Medium.......................................................................20 Hz – 300 kHz

Fast..............................................................................200 Hz – 300 kHz

Common Mode Rejection............................................70 dB at 50 Hz or 60 Hz ±0.1 % (1 kΩ unbalance)

Maximum Crest Factor................................................5:1 at Full Scale

Additional Crest Factor Errors (<100 Hz) ..............Crest Factor 1-2, 0.05 % of full scale

Crest Factor 2-3, 0.2 % of full scale Crest Factor 3-4, 0.4 % of full scale Crest Factor 4-5, 0.5 % of full scale

Input Characteristics

Range

Full Scale

(6½ Digits)

4½ Digits 5½ Digits 6½ Digits

100 mV 100.0000 mV 10 µV 1 µV 100 nV 1 V 1.000000 V 100 µV 10 µV 1 µV 10 V 10.00000 V 1 mV 100 µV 10 µV 100 V 100.0000 V 10 mV 1 mV 100 µV 1000 V 1,000.000 V 100 mV 10 mV 1 mV

Resolution

Input Impedance

1 MΩ ±2 % shunted by <100 pf

8846A Accuracy

Accuracy is given as ± (% measurement + % of range)

Range Frequency

100 mV

3 – 5 Hz 1.0 + 0.03 1.0 + 0.04 1.0 + 0.04 0.1 + 0.004

24 Hour

(23 ± 1 °C)

90 Days

(23 ± 5 °C)

1 Year

(23 ± 5 °C)

Temperature

Coefficient/ °C

Outside 18 to 28 °C

5 – 10 Hz 0.35 + 0.03 0.35 + 0.04 0.35 + 0.04 0.035 + 0.004 10 Hz – 20 kHz 0.04 + 0.03 0.05 + 0.04 0.06 + 0.04 0.005 + 0.004 20 – 50 kHz 0.1 + 0.05 0.11 + 0.05 0.12 + 0.05 0.011 + 0.005

1 V

50 – 100 kHz 0.55 + 0.08 0.6 + 0.08 0.6 + 0.08 0.06 + 0.008 100 – 300 kHz 3 – 5 Hz 1.0 + 0.02 1.0 + 0.03 1.0 + 0.03 0.1 + 0.003

[1]

4.0 + 0.50 4.0 + 0.50 4.0 + 0.50 0.20 + 0.02

5 – 10 Hz 0.35 + 0.02 0.35 + 0.03 0.35 + 0.03 0.035 + 0.003 10 Hz – 20 kHz 0.04 + 0.02 0.05 + 0.03 0.06 + 0.03 0.005 + 0.003 20 – 50 kHz 0.1 + 0.04 0.11 + 0.05 0.12 + 0.05 0.011 + 0.005

10 V

50 – 100 kHz 0.55 + 0.08 0.6 + 0.08 0.6 + 0.08 0.06 + 0.008 100 – 300 kHz 3 – 5 Hz 1.0 + 0.02 1.0 + 0.03 1.0 + 0.03 0.1 + 0.003

[1]

4.0 + 0.50 4.0 + 0.50 4.0 + 0.50 0.2 + 0.02

5 – 10 Hz 0.35 + 0.02 0.35 + 0.03 0.35 + 0.03 0.035 + 0.003 10 Hz – 20 kHz 0.04 + 0.02 0.05 + 0.03 0.06 + 0.03 0.005 + 0.003 20 – 50 kHz 0.1 + 0.04 0.11 + 0.05 0.12 + 0.05 0.011 + 0.005

100 V

50 – 100 kHz 0.55 + 0.08 0.6 + 0.08 0.6 + 0.08 0.06 + 0.008 100 – 300 kHz 3 – 5 Hz 1.0 + 0.02 1.0 + 0.03 1.0 + 0.03 0.1 + 0.003

[1]

4.0 + 0.50 4.0 + 0.50 4.0 + 0.50 0.2 + 0.02

5 – 10 Hz 0.35 + 0.02 0.35 + 0.03 0.35 + 0.03 0.035 + 0.003 10 Hz – 20 kHz 0.04 + 0.02 0.05 + 0.03 0.06 + 0.03 0.005 + 0.003 20 – 50 kHz 0.1 + 0.04 0.11 + 0.05 0.12 + 0.05 0.011 + 0.005 50 – 100 kHz 0.55 + 0.08 0.6 + 0.08 0.6 + 0.08 0.06 + 0.008 100 –- 300 kHz

[1]

4.0 + 0.50 4.0 + 0.50 4.0 + 0.50 0.2 + 0.02

7

8845A and 8846A Fluke Corporation 3

Range Frequency

1000 V

3 – 5 Hz 1.0 + 0.02 1.0 + 0.03 1.0 + 0.03 0.1 + 0.003

24 Hour

(23 ± 1 °C)

90 Days

(23 ± 5 °C)

5 – 10 Hz 0.35 + 0.02 0.35 + 0.03 0.35 + 0.03 0.035 + 0.003 10 Hz – 20 kHz 0.04 + 0.02 0.05 + 0.03 0.06 + 0.03 0.005 + 0.003 20 – 50 kHz 0.1 + 0.04 0.11 + 0.05 0.12 + 0.05 0.011 + 0.005 50 – 100 kHz 100 – 300 kHz

[1] Typically 30 % reading error at 1 MHz [2] 1000 Volt range is limited to 8 X 10

[2]

0.55 + 0.08 0.6 + 0.08 0.6 + 0.08 0.06 + 0.008

[1][2]

4.0 + 0.5 4.0 + 0.50 4.0 + 0.50 0.2 + 0.02

7

volt-Hertz

8845A Accuracy

Accuracy is given as ± (% measurement + % of range)

Range

100 mV

Frequency

(Hz)

3 – 5 Hz 1.0 + 0.03 1.0 + 0.04 1.0 + 0.04 0.10 + 0.004

24 Hour

(23 ± 1 °C)

90 Days

(23 ± 5 °C)

5 – 10 Hz 0.35 + 0.03 0.35 + 0.04 0.35 + 0.04 0.035 + 0.004 10 Hz – 20 kHz 0.04 + 0.03 0.05 + 0.04 0.06 + 0.04 0.005 + 0.004 20 – 50 kHz 0.1 + 0.05 0.11 + 0.05 0.12 + 0.05 0.011 + 0.005

1 V

50 – 100 kHz 0.55 + 0.08 0.6 + 0.08 0.6 + 0.08 0.06 + 0.008 100 – 300 kHz 3 – 5 Hz 1.0 + 0.02 1.0 + 0.03 1.0 + 0.03 0.1 + 0.003

[1]

4.0 + 0.50 4.0 + 0.50 4.0 + 0.50 0.2 + 0.02

5 – 10 Hz 0.35 + 0.02 0.35 + 0.03 0.35 + 0.03 0.035 + 0.003 10 Hz – 20 kHz 0.04 + 0.02 0.05 + 0.03 0.06 + 0.03 0.005 + 0.003 20 – 50 kHz 0.1 + 0.04 0.11 + 0.05 0.12 + 0.05 0.011 + 0.005

10 V

50 – 100 kHz 0.55 + 0.08 0.6 + 0.08 0.6 + 0.08 0.06 + 0.008 100 – 300 kHz 3 – 5 Hz 1.0 + 0.02 1.0 + 0.03 1.0 + 0.03 0.1 + 0.003

[1]

4.0 + 0.50 4.0 + 0.50 4.0 + 0.50 0.2 + 0.02

5 – 10 Hz 0.35 + 0.02 0.35 + 0.03 0.35 + 0.03 0.035 + 0.003 10 Hz – 20 kHz 0.04 + 0.02 0.05 + 0.03 0.06 + 0.03 0.005 + 0.003 20 – 50 kHz 0.1 + 0.04 0.11 + 0.05 0.12 + 0.05 0.011 + 0.005

100 V

50 – 100 kHz 0.55 + 0.08 0.6 + 0.08 0.6 + 0.08 0.06 + 0.008 100 – 300 kHz 3 – 5 Hz 1.0 + 0.02 1.0 + 0.03 1.0 + 0.03 0.1 + 0.003

[1]

4.0 + 0.50 4.0 + 0.50 4.0 + 0.50 0.2 + 0.02

5 – 10 Hz 0.35 + 0.02 0.35 + 0.03 0.35 + 0.03 0.035 + 0.003 10 Hz – 20 kHz 0.04 + 0.02 0.05 + 0.03 0.06 + 0.03 0.005 + 0.003 20 – 50 kHz 0.1 + 0.04 0.11 + 0.05 0.12 + 0.05 0.011 + 0.005

750 V

50 – 100 kHz 0.55 + 0.08 0.6 + 0.08 0.6 + 0.08 0.06 + 0.008 100 – 300 kHz 3 –- 5 Hz 1.0 + 0.02 1.0 + 0.03 1.0 + 0.03 0.1 + 0.003

[1]

4.0 + 0.50 4.0 + 0.50 4.0 + 0.50 0.2 + 0.02

5 – 10 Hz 0.35 + 0.02 0.35 + 0.03 0.35 + 0.03 0.035 + 0.003 10 Hz – 20 kHz 0.04 + 0.02 0.05 + 0.03 0.06 + 0.03 0.005 + 0.003 20 – 50 kHz 0.1 + 0.04 0.11 + 0.05 0.12 + 0.05 0.011 + 0.005 50 – 100 kHz 100 – 300 kHz

[1] Typically 30 % reading error at 1 MHz [2] 750 Volt range is limited to 8 X 10

[2]

0.55 + 0.08 0.6 + 0.08 0.6 + 0.08 0.06 + 0.008

[1] [2]

4.0 + 0.5 4.0 + 0.5 4.0 + 0.5 0.2 + 0.02

7

volt-Hertz

Additional Low Frequency Errors

Error is stated as % of reading.

Frequency

3HZ (slow) 20HZ (medium) 200HZ (fast)

AC Filter

10 – 20 Hz 0 0.25 – 20 – 40 Hz 0 0.02 – 40 – 100 Hz 0 0.01 0.55 100 – 200 Hz 0 0 0.2 200 Hz – 1 kHz 0 0 0.02 > 1 kHz 0 0 0

1 Year

(23 ± 5 °C)

1 Year

(23 ± 5 °C)

Temperature

Coefficient/ °C

Outside 18 to 28 °C

Temperature

Coefficient/ °C

Outside 18 to 28 °C

4 Fluke Corporation 8845A and 8846A

Resistance

Specifications are for 4-wire resistance function, 2 x 4-wire resistance, or 2-wire resistance with zero. If zero is not used, add 0.2 Ω for 2wire resistance plus lead resistance, and add 20 mΩ for 2 x 4-wire resistance function.

Measurement Method..................................................Current source referenced to LO input.

Max. Lead Resistance (4-wire ohms)......................10 % of range per lead for 100 Ω, 1 kΩ ranges. 1 kΩ per lead on all other ranges.

Input Protection............................................................1000 V on all ranges.

Input Characteristics

Range

[1]

10 Ω 100 Ω 100.0000 Ω 10 mΩ 1 mΩ 100 μΩ 1 mA 1 kΩ 1.000000 kΩ 100 mΩ 10 mΩ 1 mΩ 1 mA 10 kΩ 10.00000 kΩ 1 Ω 100 mΩ 10 mΩ 100 μA 100 kΩ 100.0000 kΩ 10 Ω 1 Ω 100 mΩ 10 μA 1 MΩ 1.000000 MΩ 100 Ω 10 Ω 1 Ω 10 μA 10 MΩ 10.00000 MΩ 1 kΩ 100 Ω 10 Ω 1 μA 100 MΩ 100.0000 MΩ 10 kΩ 1 kΩ 100 Ω 1 μA || 10 MΩ

1.0 GΩ

[1] 8846A Only

Full Scale

(6½ Digits)

10.00000 Ω 1 mΩ 100 μΩ 10 μΩ 5 mA

[1]

1.000000 GΩ 100 kΩ 10 kΩ 1 kΩ 1 μA || 10 MΩ

4½ Digits 5½ Digits 6½ Digits

8846A Accuracy

Accuracy is given as ± (% measurement + % of range)

Range

10 Ω 0.003 + 0.01 0.008 + 0.03 0.01+ 0.03 0.0006 + 0.0005 100 Ω 0.003 + 0.003 0.008 + 0.004 0.01 + 0.004 0.0006 + 0.0005 1 kΩ 0.002 + 0.0005 0.008 + 0.001 0.01 + 0.001 0.0006 + 0.0001 10 kΩ 0.002 + 0.0005 0.008 + 0.001 0.01 + 0.001 0.0006 + 0.0001 100 kΩ 0.002 + 0.0005 0.008 + 0.001 0.01 + 0.001 0.0006 + 0.0001 1 MΩ 0.002 + 0.001 0.008 + 0.001 0.01 + 0.001 0.001 + 0.0002 10 MΩ 0.015 + 0.001 0.02 + 0.001 0.04 + 0.001 0.003 + 0.0004 100 MΩ 0.3 + 0.01 0.8 + 0.01 0.8 + 0.01 0.15 + 0.0002 1 GΩ 1.0 + 0.01 1.5 + 0.01 2.0 + 0.01 0.6 + 0.0002

24 Hour

(23 ± 1 °C)

90 Days

(23 ± 5 °C)

8845A Accuracy

Accuracy is given as ± (% measurement + % of range)

Range

100 Ω 0.003 + 0.003 0.008 + 0.004 0.01 + 0.004 0.0006 + 0.0005 1 kΩ 0.002 + 0.0005 0.008 + 0.001 0.01 + 0.001 0.0006 + 0.0001 10 kΩ 0.002 + 0.0005 0.008 + 0.001 0.01 + 0.001 0.0006 + 0.0001 100 kΩ 0.002 + 0.0005 0.008 + 0.001 0.01 + 0.001 0.0006 + 0.0001 1 MΩ 0.002 + 0.001 0.008 + 0.001 0.01 + 0.001 0.0010 + 0.0002 10 MΩ 0.015 + 0.001 0.02 + 0.001 0.04 + 0.001 0.0030 + 0.0004 100 MΩ 0.3 + 0.01 0.8 + 0.01 0.8 + 0.01 0.1500 + 0.0002

24 Hour

(23 ± 1 °C)

90 Days

(23 ± 5 °C)

Additional Ohms Errors

Digits NPLC Additional Noise Error

6½ 100 0 % of range 6½ 10 0 % of range 5½ 1 0.001 % of range 5½ 0.2 0.001 % of range ± 20 mΩ 4½ 0.02 0.01 % of range ± 20 mΩ

Resolution

1 Year

(23 ± 5 °C)

1 Year

(23 ± 5 °C)

Temperature

Coefficient/ °C

Outside 18 to 28 °C

Temperature

Coefficient/ °C

Outside 18 to 28 °C

Source Current

8845A and 8846A Fluke Corporation 5

DC Current

Input Protection............................................................Tool-accessible 11 A/1000 V and 440 mA/1000 V fuses.

Input Characteristics

Range

Full Scale

(6½ Digits)

4½ Digits 5½ Digits 6½ Digits

100 µA 100.0000 µA 10 nA 1 nA 100 pA 100Ω <0.015 1 mA 1.000000 mA 100 nA 10 nA 1 nA 100Ω <0.15 10 mA 10.00000 mA 1 μA 100 nA 10 nA 1 Ω <0.025 V 100 mA 100.0000 mA 10 µA 1 μA 100 nA 1 Ω <0.25 V 1 A 1.000000 A 100 µA 10 µA 1 μA 0.01 Ω <0.05 V

[1]

3 A

3.00000A 1 mA 100 µA 10 µA 0.01 Ω <0.15 V

10 A 10.00000 A 1 mA 100 µA 10 µA 0.01 Ω <0.5 V

[1] Part of 10 A range.

Accuracy (8846A)

Accuracy is given as ± (% measurement + % of range)

Range

100 µA 0.01 + 0.02 0.04 + 0.025 0.05 + 0.025 0.002 + 0.003 1 mA 0.007 + 0.005 0.030 + 0.005 0.05 + 0.005 0.002 + 0.0005 10 mA 0.007 + 0.02 0.03 + 0.02 0.05 + 0.02 0.002 + 0.002 100 mA 0.01 + 0.004 0.03 + 0.005 0.05 + 0.005 0.002 + 0.0005

[2]

1 A

0.03 + 0.02 0.04 + 0.02 0.05 + 0.02 0.005 + 0.001

[1][2]

3 A

0.05 + 0.02 0.08 + 0.02 0.1 + 0.02 0.005 + 0.002

[2]

10 A

0.1 + 0.008 0.12 + 0.008 0.15 + 0.008 0.005 + 0.0008

[1] Part of 10 A range [2] Available at front panel connectors only

Accuracy (8845A)

Accuracy is given as ± (% measurement + % of range)

Range

100 µA 0.01 + 0.02 0.04 + 0.025 0.05 + 0.025 0.002 + 0.003 1 mA 0.007 + 0.005 0.030 + 0.005 0.05 + 0.005 0.002 + 0.0005 10 mA 0.007 + 0.02 0.03 + 0.02 0.05 + 0.02 0.002 + 0.002 100 mA 0.01 + 0.004 0.03 + 0.005 0.05 + 0.005 0.002 + 0.0005

[2]

1 A

0.03 + 0.04 0.08 + 0.02 0.05 + 0.02 0.005 + 0.001

[1][2]

3 A

0.05 + 0.08 0.12 + 0.02 0.1 + 0.02 0.005 + 0.002

[2]

10 A

0.1 + 0.008 0.12 + 0.008 0.15 + 0.02 0.005 + 0.0008

[1] Part of 10 A range [2] Available at front panel connectors only

Additional Current Errors

Digits NPLC Additional Noise Error

6½ 100 0 % of range 6½ 10 0 % of range 5½ 1 0.001 % of range 5½ 0.2 0.001 % of range ± 4 μA 4½ 0.02 0.01 % of range ± 4 μA

24 Hour

(23 ± 1 °C)

24 Hour

(23 ± 1 °C)

Resolution

90 Days

(23 ± 5 °C)

90 Days

(23 ± 5 °C)

1 Year

(23 ± 5 °C)

1 Year

(23 ± 5 °C)

Shunt Resistance

(Ohms)

Temperature

Coefficient/ °C

Outside 18 to 28 °C

Temperature

Coefficient/ °C

Outside 18 to 28 °C

Burden Voltage

6 Fluke Corporation 8845A and 8846A

AC Current

The following ac current specifications are for sinusoidal signals with amplitudes greater than 5 % of range. For inputs from 1% to 5 % of range, add an additional error of 0.1 % of range.

Input Protection............................................................Tool accessible 11 A/1000 V and 440 mA/1000 V fuses.

Measurement Method..................................................ac-coupled true-rms, dc-coupled to the fuse and shunt (no blocking capacitor)

AC Filter Bandwidth

Slow.............................................................................3 Hz to 10 kHz

Medium.......................................................................20 Hz to 10 kHz

Fast..............................................................................200 Hz to 10 kHz

Maximum Crest Factor................................................5:1 at full scale

Additional Crest Factor Errors (<100 Hz) ..............Crest Factor 1-2, 0.05 % of full scale

Input Characteristics

Range

100 μA 1 mA 10 mA 10.00000 mA 1 μA 100 nA 10 nA 1 Ω <0.025 V 100 mA 100.0000 mA 10 µA 1 μA 100 nA 1 Ω <0.25 V 1 A 1.000000 A 100 µA 10 µA 1 μA 0.01 Ω <0.05 V 3 A[2] 3.00000 A 1 mA 100 µA 10 μA 0.01 Ω <0.05 V 10 A 10.00000 A 1 mA 100 µA 10 µA 0.01 Ω <0.5 V

[1] 8846A Only [2] Part of 10 A range

Full Scale

(6½ Digits)

[1]

100.0000 μA 10 nA 1 nA 100 pA 100Ω <0.015 V

[1]

1.000000 mA 100 nA 10 nA 1 nA 100Ω <0.15 V

4½ Digits 5½ Digits 6½ Digits

8846A Accuracy

Accuracy is given as ± (% measurement + % of range)

Range

100 μA

Frequency

(Hz)

3 – 5 Hz 1.0 + 0.04 1.0 + 0.04 1.0 + 0.04 0.1 + 0.006 5 – 10 Hz 0.3 + 0.04 0.3 + 0.04 0.3 + 0.04 0.035 + 0.006 10 Hz – 5 kHz 0.1 + 0.04 0.1 + 0.04 0.1 + 0.04 0.015 + 0.006 5 – 10 kHz 0.2 + 0.25 0.2 + 0.25 0.2 + 0.25 0.03 + 0.006

1 mA

3 – 5 Hz 1.0 + 0.04 1.0 + 0.04 1.0 + 0.04 0.1 + 0.006 5 – 10 Hz 0.3 + 0.04 0.3 + 0.04 0.3 + 0.04 0.035 + 0.006 10 Hz – 5 kHz 0.1 + 0.04 0.1 + 0.04 0.1 + 0.04 0.015 + 0.006 5 – 10 kHz 0.2 + 0.25 0.2 + 0.25 0.2 + 0.25 0.03 + 0.006

10 mA

3 – 5 Hz 1.0 + 0.04 1.0 + 0.04 1.0 + 0.04 0.1 + 0.006 5 – 10 Hz 0.3 + 0.04 0.3 + 0.04 0.3 + 0.04 0.035 + 0.006 10 Hz – 5 kHz 0.1 + 0.04 0.1 + 0.04 0.1+ 0.04 0.015 + 0.006 5 – 10 kHz 0.2 + 0.25 0.2 + 0.25 0.2 + 0.25 0.03 + 0.006

100 mA

3 – 5 Hz 1.0 + 0.04 1.0 + 0.04 1.0 + 0.04 0.1 + 0.006 5 – 10 Hz 0.3 + 0.04 0.3 + 0.04 0.3 + 0.04 0.035 + 0.006 10 Hz – 5 kHz 0.1 + 0.04 0.1 + 0.04 0.1 + 0.04 0.015 + 0.006

1 A

[2]

5 – 10 kHz 0.2 + 0.25 0.2 + 0.25 0.2 + 0.25 0.03 + 0.006 3 – 5 Hz 1.0 + 0.04 1.0 + 0.04 1.0 + 0.04 0.1 + 0.006 5 – 10 Hz 0.3 + 0.04 0.3 + 0.04 0.3 + 0.04 0.035 + 0.006 10 Hz – 5 kHz 0.1 + 0.04 0.1 + 0.04 0.1 + 0.04 0.015 + 0.006

3 A

[1][2]

5 – 10 kHz 0.35 + 0.7 0.35 + 0.7 0.35 + 0.7 0.03 + 0.006 3 – 5 Hz 1.1 + 0.06 1.1 + 0.06 1.1 + 0.06 0.1 + 0.006 5 – 10 Hz 0.35 + 0.06 0.35 + 0.06 0.35 + 0.06 0.035 + 0.006 10 Hz – 5 kHz 0.5 + 0.7 0.15 + 0.06 0.15 + 0.06 0.015 + 0.006

10 A

[2]

5 – 10 kHz 0.35 + 0.7 0.35 + 0.7 0.35 + 0.7 0.03 + 0.006 3 – 5 Hz 2.0 + 0.06 2.0 + 0.06 2.0 + 0.06 0.2 + 0.006 5 – 10 Hz 1.1 + 0.06 1.1 + 0.06 1.1 + 0.06 0.1 + 0.006 10 Hz – 5 kHz 0.15 + 0.06 0.15 + 0.06 0.15 + 0.06 0.015 + 0.006 5 – 10 kHz 0.35 + 0.7 0.35 + 0.7 0.35 + 0.7 0.03 + 0.006

[1] Part of 10 A range [2] Available only on front panel connectors

24 Hour

(23 ± 1 °C)

Crest Factor 2-3, 0.2 % of full scale Crest Factor 3-4, 0.4 % of full scale Crest Factor 4-5, 0.5 % of full scale

Resolution

90 Days

(23 ± 5 °C)

Shunt Resistance

(Ohms)

1 Year

(23 ± 5 °C)

Burden Voltage

Temperature

Coefficient/ °C

Outside 18 to 28 °C

8845A and 8846A Fluke Corporation 7

8845A Accuracy

Accuracy is given as ± (% measurement + % of range)

Range

10 mA

Frequency

(Hz)

3 – 5 Hz 1.0 + 0.04 1.0 + 0.04 1.0 + 0.04 0.1 + 0.006

24 Hour

(23 ± 1 °C)

90 Days

(23 ± 5 °C)

5 – 10 Hz 0.3 + 0.04 0.3 + 0.04 0.3 + 0.04 0.035 + 0.006 10 Hz – 5 kHz 0.1 + 0.04 0.1 + 0.04 0.1+ 0.04 0.015 + 0.006 5 – 10 kHz 0.2 + 0.25 0.2 + 0.25 0.2 + 0.25 0.03 + 0.006

100 mA

3 – 5 Hz 1.0 + 0.04 1.0 + 0.04 1.0 + 0.04 0.1 + 0.006 5 – 10 Hz 0.3 + 0.04 0.3 + 0.04 0.3 + 0.04 0.035 + 0.006 10 Hz – 5 kHz 0.1 + 0.04 0.1 + 0.04 0.1 + 0.04 0.015 + 0.006

1 A

[2]

5 – 10 kHz 0.2 + 0.25 0.2 + 0.25 0.2 + 0.25 0.03 + 0.006 3 – 5 Hz 1.0 + 0.04 1.0 + 0.04 1.0 + 0.04 0.1 + 0.006 5 – 10 Hz 0.3 + 0.04 0.3 + 0.04 0.3 + 0.04 0.035 + 0.006 10 Hz – 5 kHz 0.1 + 0.04 0.1 + 0.04 0.1 + 0.04 0.015 + 0.006

3 A

[1][2]

5 – 10 kHz 0.35 + 0.7 0.35 + 0.7 0.35 + 0.7 0.03 + 0.006 3 – 5 Hz 1.1 + 0.06 1.1 + 0.06 1.1 + 0.06 0.1 + 0.006 5 – 10 Hz 0.35 + 0.06 0.35 + 0.06 0.35 + 0.06 0.035 + 0.006 10 Hz – 5 kHz 0.15 + 0.06 0.15 + 0.06 0.15 + 0.06 0.015 + 0.006

10 A

[2]

5 – 10 kHz 0.35 + 0.7 0.35 + 0.7 0.35 + 0.7 0.03 + 0.006 3 – 5 Hz 1.1 + 0.04 1.1 + 0.04 1.1 + 0.04 0.2 + 0.006 5 – 10 Hz 0.35 + 0.04 0.35 + 0.04 0.35 + 0.04 0.1 + 0.006 10 Hz – 5 kHz 0.15 + 0.04 0.15 + 0.04 0.15 + 0.04 0.015 + 0.006 5 – 10 kHz 0.35 + 0.7 0.35 + 0.7 0.35 + 0.7 0.03 + 0.006

[1] Part of the 10 A range [2] Available only at front panel connectors

Additional Low Frequency Errors

Error is stated as % of reading.

Frequency

3HZ (slow) 20HZ (medium) 200HZ (fast)

AC Filter

10 – 20 Hz 0 0.25 – 20 – 40 Hz 0 0.02 – 40 – 100 Hz 0 0.01 0.55 100 – 200 Hz 0 0 0.2 200 Hz – 1 kHz 0 0 0.02 > 1 kHz 0 0 0

1 Year

(23 ± 5 °C)

Temperature

Coefficient/ °C

Outside 18 to 28 °C

Frequency

Gate Times.....................................................................Programmable to 1 s, 100 ms, and 10 ms.

Measurement Method..................................................Flexible counting technique. AC-coupled input using the ac voltage measurement

Settling Considerations..............................................When measuring frequency or period after a dc offset voltage change, errors may occur.

Measurement Considerations....................................To minimize measurement errors, shield inputs from external noise when measuring low-

8846A Accuracy

Accuracy is given as ± % measurement

Range Frequency

100 mV to 1000 V

3 – 5 Hz 0.1 0.1 0.1 0.005

[1][2]

5 – 10 Hz 0.05 0.05 0.05 0.005 10 – 40 Hz 0.03 0.03 0.03 0.001 40 Hz – 300 kHz 0.006 0.01 0.01 0.001 300 kHz – 1 MHz 0.006 0.01 0.01 0.001

[1] Input >100 mV. For 10 – 100 mV, multiply percent measurement error by 10. [2] Limited to 8 X 10

8 Fluke Corporation 8845A and 8846A

7

volt-Hertz

24 Hour

(23 ± 1 °C)

function.

For the most accurate measurement, wait up to 1 second for the input blocking capacitor to settle.

voltage, low-frequency signals.

90 Days

(23 ± 5 °C)

1 Year

(23 ± 5 °C)

Temperature

Coefficient/ °C

Outside 18 to 28 °C

8845A Accuracy

Accuracy is given as ± % measurement

Range Frequency

100 mV to 750 V

3 – 5 Hz 0.1 0.1 0.1 0.005

[1][2]

5 – 10 Hz 0.05 0.05 0.05 0.005

24 Hour

(23 ± 1 °C)

90 Days

(23 ± 5 °C)

1 Year

(23 ± 5 °C)

Temperature

Compensation/ °C

Outside 18 to 28 °C

10 – 40 Hz 0.03 0.03 0.03 0.001 40 Hz – 300 kHz 0.006 0.01 0.01 0.001

[1] Input >100 mV. For 10 – 100 mV, multiply percent measurement error by 10. [2] Limited to 8 X 10

7

volt-Hertz

Gate Time vs. Resolution

Gate Time Resolution

0.01 5½

0.1 6½

1.0 6½

Additional Low Frequency Errors

Error stated as percent of measurement for inputs >100 mV. For 10 – 100 mV, multiply percent by 10.

Frequency

6½ 5½ 4½

3 – 5 Hz 0 0.12 0.12 5 – 10 Hz 0 0.17 0.17 10 – 40 Hz 0 0.2 0.2 40 – 100 Hz 0 0.06 0.21 100 – 300 Hz 0 0.03 0.21 300 Hz – 1 kHz 0 0.01 0.07 > 1 kHz 0 0 0.02

Resolution

Capacitance (8846A Only)

Accuracy is stated as ±(% of measurement + % of range)

Range Resolution

1 Year Accuracy

(23 ± 5 °C)

1 nF 1 pF 2% ± 2.5 % 0.05 + 0.05 10 nF 10 pF 1% ± 0.5 % 0.05 + 0.01 100 nF 100 pF 1% ± 0.5 % 0.01 + 0.01 1 µF 1 nF 1% ± 0.5 % 0.01 + 0.01 10 µF 10 nF 1% ± 0.5 % 0.01 + 0.01 100 µF 100 nF 1% ± 0.5 % 0.01 + 0.01 1 mF 1 µF 1% ± 0.5 % 0.01 + 0.01 10 mF 10 µF 1% ± 0.5 % 0.01 + 0.01 100 mF 100 µF 4% ± 0.2 % 0.05 + 0.05

[1] Stated accuracy is attained when Zero function is used.

[1]

Temperature Coefficient/ °C

Outside 18 to 28 °C

Temperature (8846A only)

Test Current...................................................................1 mA

Accuracy is stated as ± °C and is based on a Platinum RT100 (DIN IEC 751, 385 type) RTD with less than 10 ohms lead resistance. Specifications do not include probe accuracy, which must be added.

Range Resolution

90 Days

(23 ± 5 °C)

1 Year

(23 ± 5 °C)

-200 °C 0.001 °C 0.06 0.09 0.0025

-100 °C 0.001 °C 0.05 0.08 0.002 0 °C 0.001 °C 0.04 0.06 0.002

100 °C 0.001 °C 0.05 0.08 0.002

300 °C 0.001 °C 0.1 0.12 0.002

600 °C 0.001 °C 0.12 0.14 0.002

Accuracy

Temperature

Coefficient/ °C

Outside 18 to 28 °C

8845A and 8846A Fluke Corporation 9

Continuity

Continuity Threshold ..................................................Selectable between 1 Ω and 1000 Ω

Test Current...................................................................1 mA

Response Time..............................................................300 samples/sec with audible tone

Accuracy is given as ± (% measurements + % of range)

Range

1000.0 Ω 0.002 + 0.01 0.008 + 0.02 0.01 + 0.02 0.001 + 0.002

24 Hour

(23 ± 1 °C)

90 Days

(23 ± 5 °C)

1 Year

(23 ± 5 °C)

Temperature

Coefficient/ °C

Outside 18 to 28 °C

Diode Test

Test Current...................................................................100 μA or 1 mA

Response Time..............................................................300 samples/sec with audible tone.

Accuracy is given as ± (% measurements + % of range)

Range

5.0000 V 0.002 + 0.002 0.008 + 0.002 0.01 + 0.002 0.001 + 0.002

10.0000 V 0.002 + 0.001 0.008 + 0.002 0.01 + 0.002 0.001 + 0.002

24 Hour

(23 ± 1 °C)

90 Days

(23 ± 5 °C)

1 Year

(23 ± 5 °C)

Temperature

Coefficient/ °C

Outside 18 to 28 °C

Measurement Rates

Function Digits Setting

DC Volts, DC Current, and Resistance

AC Voltage and AC Current

Frequency and Period

[1] Typical measurement rates with autozero off. [2] Maximum measurement rates for 0.01 % of ac step. When dc input varies, additional settling delay is required. [3] For remote operation or external trigger using default settling delay [4] Settling delay = 0

[2]

6½ 100 NPLC 1.67 (2) s 0.6 (0.5) 0.6 (0.5) 6½ 10 NPLC 167 (200) ms 6 (5) 6 (5) 5½ 10 NPLC 16.7 (20) ms 60 (50) 60 (50) 5½ 0.2 NPLC 3 ms 300 300 6½ 3 Hz 0.14 0.14 6½ 20 Hz 1 1 6½ 200 Hz 6½ 200 Hz 6½ 1 s 1 1 5½ 100 ms 9.8 9.8 4½ 10 ms 80 80

Integration Time

60 Hz (50 Hz)

[3]

1.6 1.6

[4]

6 6

Measurements/Second

8845A 8846A

[1]

10 Fluke Corporation 8845A and 8846A

Fluke. Keeping your world

up and running.™

Fluke Corporation PO Box 9090, Everett, WA USA 98206

Fluke Europe B.V. PO Box 1186, 5602 BD Eindhoven, The Netherlands

For more information call: In the U.S.A. (800) 443-5853 or Fax (425) 446-5116 In Europe/M-East/Africa +31 (0) 40 2675 200 or Fax +31 (0) 40 2675 222 In Canada (800)-36-FLUKE or Fax (905) 890-6866 From other countries +1 (425) 446-5500 or Fax +1 (425) 446-5116 Web access: http://www.fluke.com

Fluke 8845A User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual