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Fluke 8845A/8846A

Digital Multimeters

Extended Specifications

The Fluke 8845A and 8846A 6.5 digit precision multime-

ters 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

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 expec-

tations. Basic V dc accuracy of

up to 0.0024 %, 10 A current

range, and a wide ohms range

from 10

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 tempera-

ture, 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, statis-

tics 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 combi-

nation of features and perfor-

mance 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.............................................................

120 V Setting.............................................................

220 V Setting.............................................................

240 V Setting.............................................................

Frequency........................................................................

90 V to 110 V

108 V to 132 V

198 V to 242 V

216 V to 264 V

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 lb)

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

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 %

°C

to 40

°C

<80 %

°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.

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 .........................................................................10,000 measurements, internal only

8846A .........................................................................10,000 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, Offset, DCV ratio and TrendPlot, Histogram, Statistics (min/max/average/standard deviation), and Limit Test

8845A and 8846A

Fluke Corporation

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-232C, DTE 9-pin, 1200 to 230400 baud (RS-232C to USB cable available to connect the Meter to a PC USB port. See Accessories)

IEEE 488.2

LAN and “Ethernet 10/100 base T with DHCP (for IP_ADDRess) option”

Warranty

One year

Electrical Specifications

Accuracy specifications are valid for 6½ digit resolution 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 analog filter off and power line frequency

±0.1

100 dB for NPLC of 1 or greater with analog 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.

Analog Filter..................................................................When

using the analog filter, specifications are relative to within one hour of using the

ZERO function for that range and NPLC setting.

DC Ratio

..........................................................................Accuracy is +/- (Input accuracy + Reference accuracy), where Input accuracy = DC

Voltage accuracy for the HI to LO Input (in ppm of the Input voltage), and Reference

accuracy = DC Voltage accuracy for the HI to LO (Sense) Reference (in ppm of the

Reference voltage).

Settling Considerations

..............................................Measurement settling times are affected by source impedance, cable dielectric

characteristics, and input signal changes.

Input Characteristics

Range

100 mV

10 V

100 V

1000 V

[1]

Resolution

100.0000 mV

1.000000 V

10.00000 V

100.0000 V

1,000.000 V

4½ Digits

10 µV

100 µV

1 mV

10 mV

100 mV

Resolution

5½ Digits

1 µV

10 µV

100 µV

1 mV

10 mV

6½ Digits

100 nV

1 µV

10 µV

100 µV

1 mV

Input Impedance

10 MΩ or >10 GΩ

[1]

10 MΩ or >10 GΩ

[1]

10 MΩ or >10 GΩ

10 MΩ

±1%

10 MΩ

±1%

[1]

Inputs beyond

±14

V are clamped through 200 kΩ typical. 10 MΩ is default input impedance.

8846A Accuracy

Accuracy is given as

(% measurement + % of range)

Range

100 mV

10 V

100 V

1000 V

24 Hour

(23

±1 °C)

0.0025 + 0.003

0.0018 + 0.0006

0.0013 + 0.0004

0.0018 + 0.0006

90 Days

(23

±5 °C)

0.0025 + 0.0035

0.0018 + 0.0007

0.0018 + 0.0005

0.0027 + 0.0006

0.0031 + 0.001

1 Year

(23

±5 °C)

0.0037 + 0.0035

0.0025 + 0.0007

0.0024 + 0.0005

0.0038 + 0.0006

0.0041 + 0.001

Temperature

Coefficient/

°C

Outside 18 to 28

°C

0.0005 + 0.0005

0.0005 + 0.0001

Fluke Corporation

8845A and 8846A

8845A Accuracy

Accuracy is given as

(% measurement + % of range)

Range

100 mV

10 V

100 V

1000 V

24 Hour

(23

±1 °C)

0.003 + 0.003

0.002 + 0.0006

0.0015 + 0.0004

0.002 + 0.0006

Digits

6½

5½

4½

90 Days

(23

±5 °C)

0.004 + 0.0035

0.003 + 0.0007

0.002 + 0.0005

0.0035 + 0.0006

0.0035 + 0.0010

NPLC

100

0.02

1 Year

(23

±5 °C)

0.005 + 0.0035

0.004 + 0.0007

0.0035 + 0.0005

0.0045 + 0.0006

0.0045 + 0.0010

Temperature

Coefficient/

°C

Outside 18 to 28

°C

0.0005 + 0.0005

0.0005 + 0.0001

Additional Errors

Additional NPLC Noise Error

0 % of range

0.001 % of range

0.0025 % of range +12

μV

0.017 % of range +17

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 kHz 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)

Crest Factor Error (applies to non-sinusoidal waveforms only)

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

100 mV

10 V

100 V

1000 V

Resolution

100.0000 mV

1.000000 V

10.00000 V

100.0000 V

1,000.000 V

4½ Digits

10 µV

100 µV

1 mV

10 mV

100 mV

Resolution

5½ Digits

1 µV

10 µV

100 µV

1 mV

10 mV

6½ Digits

100 nV

1 µV

10 µV

100 µV

1 mV

Input Impedance

1 MΩ

±2

% shunted

by <100 pf

8846A Accuracy

Accuracy is given as

(% measurement + % of range)

Range

100 mV

Frequency

3 – 5 Hz

5 – 10 Hz

10 Hz – 20 kHz

20 – 50 kHz

50 – 100 kHz

[1]

100 – 300 kHz

3 – 5 Hz

5 – 10 Hz

10 Hz – 20 kHz

20 – 50 kHz

50 – 100 kHz

[1]

100 – 300 kHz

24 Hour

(23

±1 °C)

1.0 + 0.03

0.35 + 0.03

0.04 + 0.03

0.1 + 0.05

0.55 + 0.08

4.0 + 0.50

1.0 + 0.02

0.35 + 0.02

0.04 + 0.02

0.1 + 0.04

0.55 + 0.08

4.0 + 0.50

90 Days

(23

±5 °C)

1.0 + 0.04

0.35 + 0.04

0.05 + 0.04

0.11 + 0.05

0.6 + 0.08

4.0 + 0.50

1.0 + 0.03

0.35 + 0.03

0.05 + 0.03

0.11 + 0.05

0.6 + 0.08

4.0 + 0.50

1 Year

(23

±5 °C)

1.0 + 0.04

0.35 + 0.04

0.06 + 0.04

0.12 + 0.05

0.6 + 0.08

4.0 + 0.50

1.0 + 0.03

0.35 + 0.03

0.06 + 0.03

0.12 + 0.05

0.6 + 0.08

4.0 + 0.50

Temperature

Coefficient/

°C

Outside 18 to 28

°C

0.1 + 0.004

0.035 + 0.004

0.005 + 0.004

0.011 + 0.005

0.06 + 0.008

0.20 + 0.02

0.1 + 0.003

0.035 + 0.003

0.005 + 0.003

0.011 + 0.005

0.06 + 0.008

0.2 + 0.02

8845A and 8846A

Fluke Corporation

Range

10 V

Frequency

3 – 5 Hz

5 – 10 Hz

10 Hz – 20 kHz

20 – 50 kHz

50 – 100 kHz

[1]

100 – 300 kHz

3 – 5 Hz

5 – 10 Hz

10 Hz – 20 kHz

20 – 50 kHz

50 – 100 kHz

[1]

100 –- 300 kHz

3 – 5 Hz

5 – 10 Hz

10 Hz – 20 kHz

20 – 50 kHz

[2]

50 – 100 kHz

[1][2]

100 – 300 kHz

24 Hour

(23

±1 °C)

1.0 + 0.02

0.35 + 0.02

0.04 + 0.02

0.1 + 0.04

0.55 + 0.08

4.0 + 0.50

1.0 + 0.02

0.35 + 0.02

0.04 + 0.02

0.1 + 0.04

0.55 + 0.08

4.0 + 0.50

1.0 + 0.015

0.35 + 0.015

0.04 + 0.015

0.1 + 0.03

0.55 + 0.06

4.0 + 0.375

90 Days

(23

±5 °C)

1.0 + 0.03

0.35 + 0.03

0.05 + 0.03

0.11 + 0.05

0.6 + 0.08

4.0 + 0.50

1.0 + 0.03

0.35 + 0.03

0.05 + 0.03

0.11 + 0.05

0.6 + 0.08

4.0 + 0.50

1 Year

(23

±5 °C)

100 V

1000 V

1.0 + 0.03

0.35 + 0.03

0.06 + 0.03

0.12 + 0.05

0.6 + 0.08

4.0 + 0.50

1.0 + 0.03

0.35 + 0.03

0.06 + 0.03

0.12 + 0.05

0.6 + 0.08

4.0 + 0.50

1.0 +

1.0 + 0.0225

0.0225

0.35 + 0.0225 0.35 + 0.0225

0.05 + 0.0225 0.06 + 0.0225

0.11 + 0.0375 0.12 + 0.0375

0.6 + 0.06

4.0 + 0.375

Temperature

Coefficient/

°C

Outside 18 to 28

°C

0.1 + 0.003

0.035 + 0.003

0.005 + 0.003

0.011 + 0.005

0.06 + 0.008

0.2 + 0.02

0.1 + 0.003

0.035 + 0.003

0.005 + 0.003

0.011 + 0.005

0.06 + 0.008

0.2 + 0.02

0.1 + 0.00225

0.035 + 0.00225

0.005 + 0.00225

0.011 + 0.00375

0.06 + 0.006

0.2 + 0.015

[1]

[2]

Typically 30 % reading error at 1 MHz

1000 Volt range is limited to 8 X 10

volt-Hertz

8845A Accuracy

Accuracy is given as

(% measurement + % of range)

Range

100 mV

Frequency

(Hz)

3 – 5 Hz

5 – 10 Hz

10 Hz – 20 kHz

20 – 50 kHz

50 – 100 kHz

[1]

100 – 300 kHz

3 – 5 Hz

5 – 10 Hz

10 Hz – 20 kHz

20 – 50 kHz

50 – 100 kHz

[1]

100 – 300 kHz

3 – 5 Hz

5 – 10 Hz

10 Hz – 20 kHz

20 – 50 kHz

50 – 100 kHz

[1]

100 – 300 kHz

3 – 5 Hz

5 – 10 Hz

10 Hz – 20 kHz

20 – 50 kHz

50 – 100 kHz

[1]

100 – 300 kHz

3 –- 5 Hz

5 – 10 Hz

10 Hz – 20 kHz

20 – 50 kHz

[2]

50 – 100 kHz

[1] [2]

100 – 300 kHz

24 Hour

(23

±1 °C)

1.0 + 0.03

0.35 + 0.03

0.04 + 0.03

0.1 + 0.05

0.55 + 0.08

4.0 + 0.50

1.0 + 0.02

0.35 + 0.02

0.04 + 0.02

0.1 + 0.04

0.55 + 0.08

4.0 + 0.50

1.0 + 0.02

0.35 + 0.02

0.04 + 0.02

0.1 + 0.04

0.55 + 0.08

4.0 + 0.50

1.0 + 0.02

0.35 + 0.02

0.04 + 0.02

0.1 + 0.04

0.55 + 0.08

4.0 + 0.50

1.0 + 0.02

0.35 + 0.02

0.04 + 0.02

0.1 + 0.04

0.55 + 0.08

4.0 + 0.5

90 Days

(23

±5 °C)

1.0 + 0.04

0.35 + 0.04

0.05 + 0.04

0.11 + 0.05

0.6 + 0.08

4.0 + 0.50

1.0 + 0.03

0.35 + 0.03

0.05 + 0.03

0.11 + 0.05

0.6 + 0.08

4.0 + 0.50

1.0 + 0.03

0.35 + 0.03

0.05 + 0.03

0.11 + 0.05

0.6 + 0.08

4.0 + 0.50

1.0 + 0.03

0.35 + 0.03

0.05 + 0.03

0.11 + 0.05

0.6 + 0.08

4.0 + 0.50

1.0 + 0.03

0.35 + 0.03

0.05 + 0.03

0.11 + 0.05

0.6 + 0.08

4.0 + 0.5

1 Year

(23

±5 °C)

1.0 + 0.04

0.35 + 0.04

0.06 + 0.04

0.12 + 0.05

0.6 + 0.08

4.0 + 0.50

1.0 + 0.03

0.35 + 0.03

0.06 + 0.03

0.12 + 0.05

0.6 + 0.08

4.0 + 0.50

1.0 + 0.03

0.35 + 0.03

0.06 + 0.03

0.12 + 0.05

0.6 + 0.08

4.0 + 0.50

1.0 + 0.03

0.35 + 0.03

0.06 + 0.03

0.12 + 0.05

0.6 + 0.08

4.0 + 0.50

1.0 + 0.03

0.35 + 0.03

0.06 + 0.03

0.12 + 0.05

0.6 + 0.08

4.0 + 0.5

Temperature

Coefficient/

°C

Outside 18 to 28

°C

0.10 + 0.004

0.035 + 0.004

0.005 + 0.004

0.011 + 0.005

0.06 + 0.008

0.2 + 0.02

0.1 + 0.003

0.035 + 0.003

0.005 + 0.003

0.011 + 0.005

0.06 + 0.008

0.2 + 0.02

0.1 + 0.003

0.035 + 0.003

0.005 + 0.003

0.011 + 0.005

0.06 + 0.008

0.2 + 0.02

0.1 + 0.003

0.035 + 0.003

0.005 + 0.003

0.011 + 0.005

0.06 + 0.008

0.2 + 0.02

0.1 + 0.003

0.035 + 0.003

0.005 + 0.003

0.011 + 0.005

0.06 + 0.008

0.2 + 0.02

10 V

100 V

750 V

[1]

[2]

Typically 30 % reading error at 1 MHz

750 Volt range is limited to 8 X 10

volt-Hertz

Fluke Corporation

8845A and 8846A

型号	GEO CABLE-REEL 50M	GEO EARTH STAKE	GEO CABLE-REEL 25M	FLUKE-8846A NIST W/O DATA	FLUKE-8846A NIST W/DATA	GEOX CABLESET
描述	environmental test equipment ground/earth cable reel 50m wire	environmental test equipment ground/earth stake	environmental test equipment ground/earth cable reel 25m wire	digital multimeters 6.5 bench dmm nist cal cert	digital multimeters 6.5 bench dmm nist W/data	environmental test equipment geox adptr cable set for stakeless
Manufacture	Fluke	Fluke	Fluke	Fluke	Fluke	-
产品种类 Product Category	Environmental Test Equipme	Environmental Test Equipme	Environmental Test Equipme	Digital Multimeters	Digital Multimeters	-
RoHS	Yes	Yes	Yes	Yes	Yes	-