Fluke 8845A/8846A Digital Multimeters

Fluke 8845A/8846A
Digital Multimeters
Precision and versatility
for bench or
systems applications
With 14 measurement
functions, math and analysis
modes, the 8845A/8846A
will meet the needs of any
test, research and development, or service application.
Features at
a glance
• 6.5 digit resolution
• Basic V dc accuracy of
up to 0.0024 %
• Dual display
• 100 µA to 10 A current range,
with up to 100 pA resolution
Exceed your expectations
for performance and value
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.
These digital multimeters perform the functions you would expect to see
in a multifunction DMM, including measuring volts, ohms, and amps. Basic
V dc accuracy of up to 0.0024 %, 10 A current range, and a wide ohms
range 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
TrendplotTM 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.
• Wide ohms ranges from
10 Ω to 1 GΩ with up to
10 µΩ resolution
• 2 x 4 ohms 4-wire
measurement technique
• Measures frequency,
capacitance, period,
temperature (8846A)
• USB memory drive port
(8846A)
• Fluke 45 and Agilent 34401A
emulation
• Graphical display
• TrendplotTM paperless recorder
mode, statistics, histogram
• CAT I 1000 V, CAT II 600 V
A perfect fit for many applications,
in a system or on the bench.
Patented split terminal jacks enable 4-wire measurements with
two leads
Input terminals are located on the front
and back of the meter to simplify connections within a system
Clear and bright dual display shows
data in graphic or numeric formats
Context sensitive soft function keys
make it easy to navigate through measurements and instrument settings
Easy to integrate into your automated test system
The 8845A and 8846A meters can be incorporated easily into your
automated test system. These meters emulate several legacy bench
DMMs, allowing them to be substituted easily into existing systems.
SCPI compatibility and drivers allow them to work with most available
application and development languages.
Front and rear inputs let you easily make connections where it’s most
convenient, whether the meter is rack-mounted or used on a bench.
Multiple interfaces provide compatibility to existing and new standards.
Reading rates are greater than 1000 readings per second giving you the
throughput you need for systems applications.
Versatile solutions for advanced test applications
These meters let you take test and troubleshooting to a new level. Set up
the 8845A or 8846A to take measurements over a period of time and display
them graphically on the DMM’s screen, for real time trending analysis.
Graphical trending analysis can highlight drift and signal fluctuations,
as well as intermittent errors that can’t be seen on a numerical display.
Using the graphical display, the 8845A and 8846A can simultaneously
display a histogram and multiple statistical values such as mean, min,
max and standard deviation calculated using real time measurements.
Analyzing a measured values distribution over time can highlight potential
reoccurring out-of-tolerance problems.
The ability to make dual simultaneous measurements and display them in
graphic or numeric format adds new tools to the test system and design
engineer’s toolbox of tricks for solving or validating analog circuits.
Save measurement results to USB memory and transfer the data to a PC
for detailed analysis. Or use the Ethernet connection to transport data
over a network.
Extended current and ohms ranges and additional capabilities such as
temperature and capacitance increase the variety of measurements you
can make and tests you can perform with a single instrument.
USB port for flash memory devices (8846A)
provides convenient data storage and
transport
Single button per function for ease of
use
Perfect for benchtop research and development
Research and development applications demand measurement performance
and flexibility. The 8845A and 8846A meet these needs, with excellent
performance in all measurement functions. It’s easy to use and adapts
easily to almost any benchtop application.
Dual display and versatile
graphical capabilities
The 8845A/8846A feature a unique
dual display that allows you to measure
two different parameters of the same
signal from one test connection. To
reveal signal quality issues like drift,
intermittants and stability, view data
as a real time trend plot or histogram,
with the unique analyze mode. You
won’t find graphical display capabilities
like these on any other instrument in
this class.
FlukeView® Software and
drivers add PC power and
application compatibility.
Perform 4-wire measurements
with only two leads
Patented split terminal jacks for the 2 x
4 ohms function allow you to perform
4-wire measurements using only two
leads instead of four. A special test lead
accessory is available to enable you to
establish the connection. You get
excellent resolution and accuracy plus
the convenience and ease of using a
single pair of leads.
FlukeView Forms increases the power
of your Fluke tool by enabling you to
document, store and analyze individual
readings or series of measurements,
then convert them into professionallooking documents. Log live readings
while connected to a PC or store, display
and share readings in interactive forms,
graphs and tables. Create customized,
professional looking documents that
can be printed or emailed. FlukeView
Forms software includes easy-to-use
standard forms.
Instrument programming drivers,
DLL files and support information are
included to get your test system up and
running as quickly as possible.
FlukeView® Forms Basic
The Fluke 8845A/8846A ship with a
free copy of FlukeView Basic. Transfer
data points from your meter to your PC
and use the two standard, noncustomizable forms to display your
readings in table or graphical form.
For a larger array of forms or to use
FlukeView® Forms Designer to customize your forms, upgrade to FlukeView®
Forms version 3.0 with FVF-UG.
Fluke 45 and Agilent 34401A
emulation
The 8845A/8846A emulate operation
and programming commands of the
Fluke 45 and Agilent 34401. Emulation
shortens the learning curve and makes
it easy to fit the 8845A or 8846A into
existing test systems.
Multiple connectors give you
maximum flexibility
Choose from several interfaces to
connect the 8845A/8846A to a
personal computer: serial, IEEE-488,
and Ethernet come standard on both
models. A USB device port is included
on the 8846A meter for convenient
data transfer to and from a PC via a
portable USB storage device.
With 6.5 digit performance, legacy
DMM emulation and the latest interfaces,
the 8845A/8846A will easily integrate
into any legacy or new test system.
Fluke support completes
the equation of value
Like all Fluke products, the
8845A/8846A are built to provide
years of dependable service. However,
if you do need calibration or repairs,
you can turn to our global network of
direct and representative service
centers strategically located around
the world. Each offers a full range of
support services.
Summary
Specifications
8845A Display
Resolution
Measurement Function
8846A
VFD Dot Matrix
6.5 Digits
Accuracy = ± (% of reading)
V DC
Ranges
100 mV to 1000 V
Max. Resolution
100 nV
Accuracy
0.0035 + 0.0005
0.0024 + 0.0005
V AC
Ranges
100 mV to 750 V
100 mV to 1000 V
Max. Resolution
100 nV
Accuracy
0.06 + 0.03
0.06 + 0.03
Frequency
3 Hz to 300 KHz
Resistance
2x4 Wire
Yes
Yes
Ranges
100 Ω to 100 MΩ
10 Ω to 1 GΩ
Max. Resolution
100 µΩ
10 µΩ
Accuracy
0.010 + 0.001
0.010 + 0.001
A DC
Ranges
100 µA to 10 A
100 µA to 10 A
Max. Resolution
100 pA
100 pA
Accuracy
0.050 + 0.005
0.050 + 0.005
A AC
Ranges
10 mA to 10 A
100 µA to 10 A
Max. Resolution
10 µA
100 pA
Accuracy
0.10 + 0.04
0.10 + 0.04
Frequency
3 Hz to 10 kHz
3 Hz to 10 kHz
Freq/Period
Ranges
3 Hz to 300 kHz
3 Hz to 1 MHz
Max. Resolution
1 µHz
1 µHz
Accuracy
0.01 %
0.01 %
Continuity/ Diode Test
Yes
Yes
Capacitance
Ranges
—
1 nF to 0.1 F
Max. Resolution
—
1 pf
Accuracy
—
1%
Temperature
Type
Platinum RTD
Range
—
-200 °C to +600 °C
Max. Resolution
—
0.01 °
Accuracy
—
0.06 °
Ordering Information
Models
8845A 6.5 digit precision multimeter, 35 ppm
8846A 6.5 digit precision multimeter, 24 ppm
USB mem
Options and Accessories
TL71 Test Lead Set, Premium DMM
TL910 Precision Electronic Probe Set
884X-SHORT 4-Wire Short
TL2X4W-PT 2x4 Wire Ohms Test Lead 2 mm
Probe Tip
884X-RTD 100 Ohm RTD Temperature Probe
884X-512M USB Memory 512 M
884X-1G USB Memory 1 GB
Y8022 IEEE488 cable (2 m)
884X-USB USB to RS232 cable adapter
FVF-UG FlukeView Forms Software
Upgrade­—No Cable
Y8846 Rack Mount Kit
Fluke supports you by supplying information
about Fluke tools and how to use them. Visit
the Fluke web site at www.fluke.com or
www.fluke.eu for product descriptions,
application notes and white papers. You will
also find newsletters, online communities,
downloadable manuals, and much more.
Math Functions
Zero, Min/Max/Average, Std Dev; mx+b
dB/dBm
Yes
Yes
Advanced Functions
Statistics/Histogram
Trendplot
Limit Test
Input Output
Yes
Yes
Yes
USB Memory
—
USB memory drive port
Real Time Clock
—
Yes
InterfacesRS 232, IEE-488.2, Ethernet, USB (with optional adaptor)
Programming Languages/SCPI (IEEE-488.2), Agilent 34401A, Fluke 45
Modes
General
Weight
3.6 kg (8.0 lbs)
Size (HxWxD)88 mm x 217 mm x 297 mm (3.46 in x 8.56 in x 11.7 in)
Safety
Designed to comply with IEC 61010-1 2000-1,
ANSI/ISA-S82.01-1994, CAN/CSA-C22.2 No. 1010.1-92
CAT I 1000 V, CAT II 600 V
Warranty
One year
0800 583 44 55
Tel: +44 1536 416 200
Fax: 0800 583 55 66
sales@sjelectronics.co.uk
www.sjelectronics.co.uk
Fluke. Keeping your world
up and running.TM
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 2 675 200 or
Fax +31 (0) 40 2 675 222
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
© Copyright 2006 Fluke Corporation. All rights reserved.
Prices are suggested resale prices (excl. VAT). Printed in the
Netherlands 09/2006
Data subject to alteration without notice.
Pub_ID: 11035-eng Rev 01
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.............................................................
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 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 source impedance, cable dielectric
characteristics, and input signal changes.
Input Characteristics
Range
Full Scale
(6½ Digits)
100 mV
1V
10 V
100 V
1000 V
100.0000 mV
1.000000 V
10.00000 V
100.0000 V
1,000.000 V
[1]
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
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)
24 Hour
(23 ± 1 °C)
90 Days
(23 ± 5 °C)
1 Year
(23 ± 5 °C)
0.0025 + 0.003
0.0018 + 0.0006
0.0013 + 0.0004
0.0018 + 0.0006
0.0018 + 0.0006
0.0025 + 0.0035
0.0018 + 0.0007
0.0018 + 0.0005
0.0027 + 0.0006
0.0031 + 0.001
0.0037 + 0.0035
0.0025 + 0.0007
0.0024 + 0.0005
0.0038 + 0.0006
0.0041 + 0.001
Range
100 mV
1V
10 V
100 V
1000 V
Temperature
Coefficient/ °C
Outside 18 to 28 °C
0.0005 + 0.0005
0.0005 + 0.0001
0.0005 + 0.0001
0.0005 + 0.0001
0.0005 + 0.0001
8845A Accuracy
Accuracy is given as ± (% measurement + % of range)
Range
100 mV
1V
10 V
100 V
1000 V
2
Fluke Corporation
24 Hour
(23 ± 1 °C)
90 Days
(23 ± 5 °C)
1 Year
(23 ± 5 °C)
0.003 + 0.003
0.002 + 0.0006
0.0015 + 0.0004
0.002 + 0.0006
0.002 + 0.0006
0.004 + 0.0035
0.003 + 0.0007
0.002 + 0.0005
0.0035 + 0.0006
0.0035 + 0.0010
0.005 + 0.0035
0.004 + 0.0007
0.0035 + 0.0005
0.0045 + 0.0006
0.0045 + 0.0010
8845A and 8846A
Temperature
Coefficient/ °C
Outside 18 to 28 °C
0.0005 + 0.0005
0.0005 + 0.0001
0.0005 + 0.0001
0.0005 + 0.0001
0.0005 + 0.0001
Input Impedance
[1]
10 MΩ or >10 GΩ
[1]
10 MΩ or >10 GΩ
[1]
10 MΩ or >10 GΩ
10 MΩ ±1%
10 MΩ ±1%
Additional Errors
Digits
6½
6½
5½
5½
4½
NPLC
100
10
1
.2
0.02
Additional Noise Error
0 % of range
0 % of range
0.001 % of range
0.001 % of range + 20 μV
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.
7
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
100 mV
1V
10 V
100 V
1000 V
Full Scale
(6½ Digits)
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
1V
10 V
100 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
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)
90 Days
(23 ± 5 °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 + 0.04
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 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
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
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
8845A and 8846A
Fluke Corporation
3
Range
1000 V
Frequency
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)
90 Days
(23 ± 5 °C)
1.0 + 0.02
0.35 + 0.02
0.04 + 0.02
0.1 + 0.04
0.55 + 0.08
4.0 + 0.5
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]
Typically 30 % reading error at 1 MHz
[2]
1000 Volt range is limited to 8 X 107 volt-Hertz
Temperature
Coefficient/ °C
Outside 18 to 28 °C
1.0 + 0.03
0.1 + 0.003
0.35 + 0.03 0.035 + 0.003
0.06 + 0.03 0.005 + 0.003
0.12 + 0.05 0.011 + 0.005
0.6 + 0.08
0.06 + 0.008
4.0 + 0.50
0.2 + 0.02
1 Year
(23 ± 5 °C)
8845A Accuracy
Accuracy is given as ± (% measurement + % of range)
Frequency
(Hz)
Range
100 mV
1V
10 V
100 V
750 V
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)
90 Days
(23 ± 5 °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
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]
Typically 30 % reading error at 1 MHz
[2]
750 Volt range is limited to 8 X 107 volt-Hertz
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
Additional Low Frequency Errors
Error is stated as % of reading.
Frequency
10 – 20 Hz
20 – 40 Hz
40 – 100 Hz
100 – 200 Hz
200 Hz – 1 kHz
> 1 kHz
4
Fluke Corporation
3HZ (slow)
0
0
0
0
0
0
8845A and 8846A
AC Filter
20HZ (medium)
0.25
0.02
0.01
0
0
0
200HZ (fast)
–
–
0.55
0.2
0.02
0
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
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
Full Scale
(6½ Digits)
10 Ω
100 Ω
1 kΩ
10 kΩ
100 kΩ
1 MΩ
10 MΩ
100 MΩ
[1]
1.0 GΩ
10.00000 Ω
100.0000 Ω
1.000000 kΩ
10.00000 kΩ
100.0000 kΩ
1.000000 MΩ
10.00000 MΩ
100.0000 MΩ
1.000000 GΩ
[1]
[1]
4½ Digits
1 mΩ
10 mΩ
100 mΩ
1Ω
10 Ω
100 Ω
1 kΩ
10 kΩ
100 kΩ
Resolution
5½ Digits
100 μΩ
1 mΩ
10 mΩ
100 mΩ
1Ω
10 Ω
100 Ω
1 kΩ
10 kΩ
6½ Digits
10 μΩ
100 μΩ
1 mΩ
10 mΩ
100 mΩ
1Ω
10 Ω
100 Ω
1 kΩ
Source Current
5 mA
1 mA
1 mA
100 μA
10 μA
10 μA
1 μA
1 μA || 10 MΩ
1 μA || 10 MΩ
8846A Only
8846A Accuracy
Accuracy is given as ± (% measurement + % of range)
24 Hour
(23 ± 1 °C)
Range
10 Ω
100 Ω
1 kΩ
10 kΩ
100 kΩ
1 MΩ
10 MΩ
100 MΩ
1 GΩ
0.003 + 0.01
0.003 + 0.003
0.002 + 0.0005
0.002 + 0.0005
0.002 + 0.0005
0.002 + 0.001
0.015 + 0.001
0.3 + 0.01
1.0 + 0.01
90 Days
(23 ± 5 °C)
0.008 + 0.03
0.008 + 0.004
0.008 + 0.001
0.008 + 0.001
0.008 + 0.001
0.008 + 0.001
0.02 + 0.001
0.8 + 0.01
1.5 + 0.01
1 Year
(23 ± 5 °C)
0.01+ 0.03
0.01 + 0.004
0.01 + 0.001
0.01 + 0.001
0.01 + 0.001
0.01 + 0.001
0.04 + 0.001
0.8 + 0.01
2.0 + 0.01
Temperature
Coefficient/ °C
Outside 18 to 28 °C
0.0006 + 0.0005
0.0006 + 0.0005
0.0006 + 0.0001
0.0006 + 0.0001
0.0006 + 0.0001
0.001 + 0.0002
0.003 + 0.0004
0.15 + 0.0002
0.6 + 0.0002
8845A Accuracy
Accuracy is given as ± (% measurement + % of range)
24 Hour
(23 ± 1 °C)
Range
100 Ω
1 kΩ
10 kΩ
100 kΩ
1 MΩ
10 MΩ
100 MΩ
0.003 + 0.003
0.002 + 0.0005
0.002 + 0.0005
0.002 + 0.0005
0.002 + 0.001
0.015 + 0.001
0.3 + 0.01
90 Days
(23 ± 5 °C)
0.008 + 0.004
0.008 + 0.001
0.008 + 0.001
0.008 + 0.001
0.008 + 0.001
0.02 + 0.001
0.8 + 0.01
1 Year
(23 ± 5 °C)
0.01 + 0.004
0.01 + 0.001
0.01 + 0.001
0.01 + 0.001
0.01 + 0.001
0.04 + 0.001
0.8 + 0.01
Temperature
Coefficient/ °C
Outside 18 to 28 °C
0.0006 + 0.0005
0.0006 + 0.0001
0.0006 + 0.0001
0.0006 + 0.0001
0.0010 + 0.0002
0.0030 + 0.0004
0.1500 + 0.0002
Additional Ohms Errors
Digits
6½
6½
5½
5½
4½
NPLC
100
10
1
0.2
0.02
Additional Noise Error
0 % of range
0 % of range
0.001 % of range
0.001 % of range ± 20 mΩ
0.01 % of range ± 20 mΩ
8845A and 8846A
Fluke Corporation
5
DC Current
Input Protection ............................................................Tool-accessible 11 A/1000 V and 440 mA/1000 V fuses.
Input Characteristics
Full Scale
(6½ Digits)
Range
100 µA
1 mA
10 mA
100 mA
1A
[1]
3A
10 A
[1]
100.0000 µA
1.000000 mA
10.00000 mA
100.0000 mA
1.000000 A
3.00000A
10.00000 A
4½ Digits
10 nA
100 nA
1 μA
10 µA
100 µA
1 mA
1 mA
Resolution
5½ Digits
1 nA
10 nA
100 nA
1 μA
10 µA
100 µA
100 µA
6½ Digits
100 pA
1 nA
10 nA
100 nA
1 μA
10 µA
10 µA
Shunt Resistance
Burden Voltage
(Ohms)
100Ω
<0.015
100Ω
<0.15
1Ω
<0.025 V
1Ω
<0.25 V
0.01 Ω
<0.05 V
0.01 Ω
<0.15 V
0.01 Ω
<0.5 V
Part of 10 A range.
Accuracy (8846A)
Accuracy is given as ± (% measurement + % of range)
24 Hour
(23 ± 1 °C)
90 Days
(23 ± 5 °C)
0.01 + 0.02
0.007 + 0.005
0.007 + 0.02
0.01 + 0.004
0.03 + 0.02
0.05 + 0.02
0.1 + 0.008
0.04 + 0.025
0.030 + 0.005
0.03 + 0.02
0.03 + 0.005
0.04 + 0.02
0.08 + 0.02
0.12 + 0.008
Range
100 µA
1 mA
10 mA
100 mA
[2]
1A
[1][2]
3A
[2]
10 A
[1]
Part of 10 A range
[2]
Available at front panel connectors only
1 Year
(23 ± 5 °C)
0.05 + 0.025
0.05 + 0.005
0.05 + 0.02
0.05 + 0.005
0.05 + 0.02
0.1 + 0.02
0.15 + 0.008
Temperature
Coefficient/ °C
Outside 18 to 28 °C
0.002 + 0.003
0.002 + 0.0005
0.002 + 0.002
0.002 + 0.0005
0.005 + 0.001
0.005 + 0.002
0.005 + 0.0008
Accuracy (8845A)
Accuracy is given as ± (% measurement + % of range)
24 Hour
(23 ± 1 °C)
90 Days
(23 ± 5 °C)
0.01 + 0.02
0.007 + 0.005
0.007 + 0.02
0.01 + 0.004
0.03 + 0.04
0.05 + 0.08
0.1 + 0.008
0.04 + 0.025
0.030 + 0.005
0.03 + 0.02
0.03 + 0.005
0.08 + 0.02
0.12 + 0.02
0.12 + 0.008
Range
100 µA
1 mA
10 mA
100 mA
[2]
1A
[1][2]
3A
[2]
10 A
[1]
Part of 10 A range
[2]
Available at front panel connectors only
1 Year
(23 ± 5 °C)
0.05 + 0.025
0.05 + 0.005
0.05 + 0.02
0.05 + 0.005
0.05 + 0.02
0.1 + 0.02
0.15 + 0.02
Temperature
Coefficient/ °C
Outside 18 to 28 °C
0.002 + 0.003
0.002 + 0.0005
0.002 + 0.002
0.002 + 0.0005
0.005 + 0.001
0.005 + 0.002
0.005 + 0.0008
Additional Current Errors
Digits
6½
6½
5½
5½
4½
6
Fluke Corporation
NPLC
100
10
1
0.2
0.02
8845A and 8846A
Additional Noise Error
0 % of range
0 % of range
0.001 % of range
0.001 % of range ± 4 μA
0.01 % of range ± 4 μA
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
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 μA
[1]
1 mA
10 mA
100 mA
1A
3 A[2]
10 A
[1]
Full Scale
(6½ Digits)
100.0000 μA
1.000000 mA
10.00000 mA
100.0000 mA
1.000000 A
3.00000 A
10.00000 A
[1]
8846A Only
[2]
Part of 10 A range
4½ Digits
10 nA
100 nA
1 μA
10 µA
100 µA
1 mA
1 mA
Resolution
5½ Digits
1 nA
10 nA
100 nA
1 μA
10 µA
100 µA
100 µA
6½ Digits
100 pA
1 nA
10 nA
100 nA
1 μA
10 μA
10 µA
Shunt Resistance
(Ohms)
100Ω
100Ω
1Ω
1Ω
0.01 Ω
0.01 Ω
0.01 Ω
Burden Voltage
<0.015 V
<0.15 V
<0.025 V
<0.25 V
<0.05 V
<0.05 V
<0.5 V
8846A Accuracy
Accuracy is given as ± (% measurement + % of range)
Range
100 μA
1 mA
10 mA
100 mA
[2]
1A
[1][2]
3A
[2]
10 A
Frequency
(Hz)
3 – 5 Hz
5 – 10 Hz
10 Hz – 5 kHz
5 – 10 kHz
3 – 5 Hz
5 – 10 Hz
10 Hz – 5 kHz
5 – 10 kHz
3 – 5 Hz
5 – 10 Hz
10 Hz – 5 kHz
5 – 10 kHz
3 – 5 Hz
5 – 10 Hz
10 Hz – 5 kHz
5 – 10 kHz
3 – 5 Hz
5 – 10 Hz
10 Hz – 5 kHz
5 – 10 kHz
3 – 5 Hz
5 – 10 Hz
10 Hz – 5 kHz
5 – 10 kHz
3 – 5 Hz
5 – 10 Hz
10 Hz – 5 kHz
5 – 10 kHz
24 Hour
(23 ± 1 °C)
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.2 + 0.25
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.2 + 0.25
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.2 + 0.25
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.2 + 0.25
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.35 + 0.7
1.1 + 0.06
0.35 + 0.06
0.5 + 0.7
0.35 + 0.7
2.0 + 0.06
1.1 + 0.06
0.15 + 0.06
0.35 + 0.7
[1]
Part of 10 A range
[2]
Available only on front panel connectors
90 Days
(23 ± 5 °C)
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.2 + 0.25
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.2 + 0.25
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.2 + 0.25
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.2 + 0.25
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.35 + 0.7
1.1 + 0.06
0.35 + 0.06
0.15 + 0.06
0.35 + 0.7
2.0 + 0.06
1.1 + 0.06
0.15 + 0.06
0.35 + 0.7
1 Year
(23 ± 5 °C)
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.2 + 0.25
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.2 + 0.25
1.0 + 0.04
0.3 + 0.04
0.1+ 0.04
0.2 + 0.25
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.2 + 0.25
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.35 + 0.7
1.1 + 0.06
0.35 + 0.06
0.15 + 0.06
0.35 + 0.7
2.0 + 0.06
1.1 + 0.06
0.15 + 0.06
0.35 + 0.7
Temperature
Coefficient/ °C
Outside 18 to 28 °C
0.1 + 0.006
0.035 + 0.006
0.015 + 0.006
0.03 + 0.006
0.1 + 0.006
0.035 + 0.006
0.015 + 0.006
0.03 + 0.006
0.1 + 0.006
0.035 + 0.006
0.015 + 0.006
0.03 + 0.006
0.1 + 0.006
0.035 + 0.006
0.015 + 0.006
0.03 + 0.006
0.1 + 0.006
0.035 + 0.006
0.015 + 0.006
0.03 + 0.006
0.1 + 0.006
0.035 + 0.006
0.015 + 0.006
0.03 + 0.006
0.2 + 0.006
0.1 + 0.006
0.015 + 0.006
0.03 + 0.006
8845A and 8846A
Fluke Corporation
7
8845A Accuracy
Accuracy is given as ± (% measurement + % of range)
Frequency
(Hz)
Range
10 mA
100 mA
[2]
1A
[1][2]
3A
[2]
10 A
3 – 5 Hz
5 – 10 Hz
10 Hz – 5 kHz
5 – 10 kHz
3 – 5 Hz
5 – 10 Hz
10 Hz – 5 kHz
5 – 10 kHz
3 – 5 Hz
5 – 10 Hz
10 Hz – 5 kHz
5 – 10 kHz
3 – 5 Hz
5 – 10 Hz
10 Hz – 5 kHz
5 – 10 kHz
3 – 5 Hz
5 – 10 Hz
10 Hz – 5 kHz
5 – 10 kHz
24 Hour
(23 ± 1 °C)
90 Days
(23 ± 5 °C)
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.2 + 0.25
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.2 + 0.25
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.35 + 0.7
1.1 + 0.06
0.35 + 0.06
0.15 + 0.06
0.35 + 0.7
1.1 + 0.04
0.35 + 0.04
0.15 + 0.04
0.35 + 0.7
[1]
Part of the 10 A range
[2]
Available only at front panel connectors
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.2 + 0.25
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.2 + 0.25
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.35 + 0.7
1.1 + 0.06
0.35 + 0.06
0.15 + 0.06
0.35 + 0.7
1.1 + 0.04
0.35 + 0.04
0.15 + 0.04
0.35 + 0.7
1 Year
(23 ± 5 °C)
1.0 + 0.04
0.3 + 0.04
0.1+ 0.04
0.2 + 0.25
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.2 + 0.25
1.0 + 0.04
0.3 + 0.04
0.1 + 0.04
0.35 + 0.7
1.1 + 0.06
0.35 + 0.06
0.15 + 0.06
0.35 + 0.7
1.1 + 0.04
0.35 + 0.04
0.15 + 0.04
0.35 + 0.7
Temperature
Coefficient/ °C
Outside 18 to 28 °C
0.1 + 0.006
0.035 + 0.006
0.015 + 0.006
0.03 + 0.006
0.1 + 0.006
0.035 + 0.006
0.015 + 0.006
0.03 + 0.006
0.1 + 0.006
0.035 + 0.006
0.015 + 0.006
0.03 + 0.006
0.1 + 0.006
0.035 + 0.006
0.015 + 0.006
0.03 + 0.006
0.2 + 0.006
0.1 + 0.006
0.015 + 0.006
0.03 + 0.006
Additional Low Frequency Errors
Error is stated as % of reading.
Frequency
3HZ (slow)
10 – 20 Hz
20 – 40 Hz
40 – 100 Hz
100 – 200 Hz
200 Hz – 1 kHz
> 1 kHz
0
0
0
0
0
0
AC Filter
20HZ (medium)
0.25
0.02
0.01
0
0
0
200HZ (fast)
–
–
0.55
0.2
0.02
0
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
function.
Settling Considerations ..............................................When measuring frequency or period after a dc offset voltage change, errors may occur.
For the most accurate measurement, wait up to 1 second for the input blocking capacitor
to settle.
Measurement Considerations....................................To minimize measurement errors, shield inputs from external noise when measuring lowvoltage, low-frequency signals.
8846A Accuracy
Accuracy is given as ± % measurement
Range
100 mV to
[1][2]
1000 V
8
Frequency
24 Hour
90 Days
1 Year
(23 ± 1 °C) (23 ± 5 °C) (23 ± 5 °C)
0.1
Temperature
Coefficient/ °C
Outside 18 to 28 °C
0.005
3 – 5 Hz
0.1
0.1
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 107 volt-Hertz
Fluke Corporation
8845A and 8846A
8845A Accuracy
Accuracy is given as ± % measurement
Range
24 Hour
90 Days
1 Year
(23 ± 1 °C) (23 ± 5 °C) (23 ± 5 °C)
Frequency
100 mV to
[1][2]
750 V
0.1
Temperature
Compensation/ °C
Outside 18 to 28 °C
0.005
3 – 5 Hz
0.1
0.1
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
[1]
Input >100 mV. For 10 – 100 mV, multiply percent measurement error by 10.
[2]
Limited to 8 X 107 volt-Hertz
Gate Time vs. Resolution
Gate Time
0.01
0.1
1.0
Resolution
5½
6½
6½
Additional Low Frequency Errors
Error stated as percent of measurement for inputs >100 mV. For 10 – 100 mV, multiply percent by 10.
Frequency
Resolution
5½
0.12
0.17
0.2
0.06
0.03
0.01
0
6½
0
0
0
0
0
0
0
3 – 5 Hz
5 – 10 Hz
10 – 40 Hz
40 – 100 Hz
100 – 300 Hz
300 Hz – 1 kHz
> 1 kHz
4½
0.12
0.17
0.2
0.21
0.21
0.07
0.02
Capacitance (8846A Only)
Accuracy is stated as ±(% of measurement + % of range)
Range
1 nF
10 nF
100 nF
1 µF
10 µF
100 µF
1 mF
10 mF
100 mF
[1]
1 Year Accuracy
(23 ± 5 °C)
2% ± 2.5 %
1% ± 0.5 %
1% ± 0.5 %
1% ± 0.5 %
1% ± 0.5 %
1% ± 0.5 %
1% ± 0.5 %
1% ± 0.5 %
4% ± 0.2 %
Resolution
1 pF
10 pF
100 pF
1 nF
10 nF
100 nF
1 µF
10 µF
100 µF
[1]
Temperature Coefficient/ °C
Outside 18 to 28 °C
0.05 + 0.05
0.05 + 0.01
0.01 + 0.01
0.01 + 0.01
0.01 + 0.01
0.01 + 0.01
0.01 + 0.01
0.01 + 0.01
0.05 + 0.05
Stated accuracy is attained when Zero function is used.
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
-200 °C
-100 °C
0 °C
100 °C
300 °C
600 °C
Resolution
0.001 °C
0.001 °C
0.001 °C
0.001 °C
0.001 °C
0.001 °C
Accuracy
90 Days
(23 ± 5 °C)
0.06
0.05
0.04
0.05
0.1
0.12
1 Year
(23 ± 5 °C)
0.09
0.08
0.06
0.08
0.12
0.14
Temperature
Coefficient/ °C
Outside 18 to 28 °C
0.0025
0.002
0.002
0.002
0.002
0.002
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)
24 Hour
(23 ± 1 °C)
90 Days
(23 ± 5 °C)
0.002 + 0.01
0.008 + 0.02
Range
1000.0 Ω
1 Year
(23 ± 5 °C)
0.01 + 0.02
Temperature
Coefficient/ °C
Outside 18 to 28 °C
0.001 + 0.002
Diode Test
Test Current...................................................................100 μA or 1 mA
Response Time..............................................................300 samples/sec with audible tone.
Accuracy is given as ± (% measurements + % of range)
24 Hour
(23 ± 1 °C)
90 Days
(23 ± 5 °C)
1 Year
(23 ± 5 °C)
0.002 + 0.002
0.002 + 0.001
0.008 + 0.002
0.008 + 0.002
0.01 + 0.002
0.01 + 0.002
Range
5.0000 V
10.0000 V
Temperature
Coefficient/ °C
Outside 18 to 28 °C
0.001 + 0.002
0.001 + 0.002
Measurement Rates
Function
Digits
DC Volts, DC Current, and
Resistance
AC Voltage and AC Current
[2]
Frequency and Period
6½
6½
5½
5½
6½
6½
6½
6½
6½
5½
4½
Setting
100 NPLC
10 NPLC
10 NPLC
0.2 NPLC
3 Hz
20 Hz
[3]
200 Hz
[4]
200 Hz
1s
100 ms
10 ms
Integration Time
60 Hz (50 Hz)
1.67 (2) s
167 (200) ms
16.7 (20) ms
3 ms
[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
0800 583 44 55
Tel: +44 1536 416 200
Fax: 0800 583 55 66
sales@sjelectronics.co.uk
www.sjelectronics.co.uk
10
Fluke Corporation
8845A and 8846A
[1]
Measurements/Second
8845A
8846A
0.6 (0.5)
0.6 (0.5)
6 (5)
6 (5)
60 (50)
60 (50)
300
300
0.14
0.14
1
1
1.6
1.6
6
6
1
1
9.8
9.8
80
80
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