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USER'S MANUAL
USER'S MANUAL


121GW
121GW
MULTIMETER
MULTIMETER




Last Revised
Last Revised
08 February 2019
08 August 2019






CONTENTS
CONTENTS
Contact .............................................................................................................. 5
Contact .............................................................................................................. 5
Glossary of Terms .............................................................................................. 6
Glossary of Terms .............................................................................................. 6
Change log ......................................................................................................... 7
Change log ......................................................................................................... 7
Firmware Version .............................................................................................. 8
Firmware Version .............................................................................................. 9
General .............................................................................................................. 9
General ............................................................................................................ 11
FCC/IC Information ........................................................................................ 9
FCC/IC Information ...................................................................................... 11
Information to the User ................................................................................ 9
Information to the User .............................................................................. 11
Introduction .................................................................................................... 10
Introduction .................................................................................................... 12
Features .......................................................................................................... 11
Features .......................................................................................................... 13
Specifications .................................................................................................. 13
Specifications .................................................................................................. 15
General ........................................................................................................ 13
General ........................................................................................................ 15
Voltage Measurement ................................................................................. 15
Voltage Measurement ................................................................................. 17
Current Measurement ................................................................................. 16
Current Measurement ................................................................................. 18
Resistance & Capacitance Measurement .................................................... 17
Resistance & Capacitance Measurement .................................................... 19
Diode Measurement.................................................................................... 18
Diode Measurement.................................................................................... 20
Frequency & Duty Cycle Measurement ...................................................... 19
Frequency & Duty Cycle Measurement ...................................................... 21
VA Measurement ........................................................................................ 20
VA Measurement ........................................................................................ 22
Temperature & Continuity .......................................................................... 21
Temperature & Continuity .......................................................................... 23
Bluetooth Specifications .............................................................................. 22
Bluetooth Specifications .............................................................................. 24
Standards ........................................................................................................ 23
Standards ........................................................................................................ 25
Compliance Symbols ................................................................................... 23
Compliance Symbols ................................................................................... 25
IEC Standards ............................................................................................... 23
IEC Standards ............................................................................................... 25
ANSI Standards ............................................................................................ 23
ANSI Standards ............................................................................................ 25
Safety .............................................................................................................. 23
Safety .............................................................................................................. 25
Warning ....................................................................................................... 24
Warning ....................................................................................................... 26
Caution ........................................................................................................ 27
Caution ........................................................................................................ 29
Operation ........................................................................................................ 28
Operation ........................................................................................................ 30
Measuring ....................................................................................................... 33
Measuring ....................................................................................................... 35
Voltage .............................................................................................. 33
Voltage .............................................................................................. 35
dBm .......................................................................................................... 35
dBm .......................................................................................................... 37
Voltage ................................................................................................ 36
Voltage ................................................................................................ 38
Temperature ......................................................................................... 37
Temperature ......................................................................................... 39
Current ......................................................................................... 38
Current ......................................................................................... 40
Burden Voltage ........................................................................................ 40
Burden Voltage ........................................................................................ 42
Resistance ............................................................................................. 42
Resistance ............................................................................................. 44
Continuity Testing ................................................................................ 43
Continuity Testing ................................................................................ 45
Cable Break Testing ............................................................................. 44
Cable Break Testing ............................................................................. 46
Capacitance .......................................................................................... 45
Capacitance .......................................................................................... 47
Frequency ........................................................................................... 46
Frequency ........................................................................................... 48
Duty Cycle ........................................................................................... 47
Duty Cycle ........................................................................................... 49
Period .................................................................................................. 48
Period .................................................................................................. 50
Diode Measurement ............................................................................ 49
Diode Measurement ............................................................................ 51
Power (VA) ................................................................... 51
Power (VA) ................................................................... 53
Data Logging ................................................................................................ 52
Data Logging ................................................................................................ 54
Backlight ...................................................................................................... 53
Backlight ...................................................................................................... 55
Bluetooth ..................................................................................................... 53
Bluetooth ..................................................................................................... 55
Measurement HOLD .................................................................................... 54
Measurement HOLD .................................................................................... 56
Relative Measurement (REL) ....................................................................... 55
Relative Measurement (REL) ....................................................................... 57
MIN/MAX/AVG ............................................................................................ 56
MIN/MAX/AVG ............................................................................................ 58
Setup Menu ................................................................................................. 57
Setup Menu ................................................................................................. 59
Temperature ............................................................................................ 58
Temperature ............................................................................................ 60
Battery Voltage ........................................................................................ 58
Battery Voltage ........................................................................................ 60
Auto Power Off (APO) .............................................................................. 58
Auto Power Off (APO) .............................................................................. 60
Buzzer On/Off .......................................................................................... 59
Buzzer On/Off .......................................................................................... 61
LCD Contrast ............................................................................................ 59
LCD Contrast ............................................................................................ 61
Date.......................................................................................................... 60
Date.......................................................................................................... 62
Multimeter ID .......................................................................................... 61
Multimeter ID .......................................................................................... 63
Logging Interval ....................................................................................... 61
Logging Interval ....................................................................................... 63
Maintenance ................................................................................................... 62
Maintenance ................................................................................................... 64
Debugging .................................................................................................... 62
Debugging .................................................................................................... 64
Cleaning and Storage ................................................................................... 62
Cleaning and Storage ................................................................................... 64
Fuse Replacement ....................................................................................... 62
Fuse Replacement ....................................................................................... 64
Calibration ....................................................................................................... 64
Calibration ....................................................................................................... 66
Calibration Mode ......................................................................................... 65
Calibration Mode ......................................................................................... 67
Saving Calibration Data ............................................................................... 66
Saving Calibration Data ............................................................................... 68
Loading Calibration Data ............................................................................. 66
Loading Calibration Data ............................................................................. 68
Zero Offset Calibration ................................................................................ 67
Zero Offset Calibration ................................................................................ 69
Full Scale GAIN Calibration .......................................................................... 68
Full Scale GAIN Calibration .......................................................................... 70
Calibration Reference Table ............................................................................ 69
Calibration Reference Table ............................................................................ 71
Firmware Update ............................................................................................ 70
Firmware Update ............................................................................................ 72
Warranty ......................................................................................................... 71
Warranty ......................................................................................................... 73
CONTACT
CONTACT


If you have a warranty claim, you can contact us at the following email ad-
If you have a warranty claim, you can contact us at the following email ad-
dress:
dress:
sales@eevblog.com
sales@eevblog.com


This multimeter and accessories can be purchased from:
This multimeter and accessories can be purchased from:
www.eevblog.com
www.eevblog.com


Community Support for the meter is provided on the EEVblog Forum:
Community Support for the meter is provided on the EEVblog Forum:
www.eevblog.com/forum
www.eevblog.com/forum


Issues should be reported in the Report an issue section of the multimeters
Issues should be reported in the Report an issue section of the multimeters
official page:
official page:
www.eevblog.com/product/121gw/
www.eevblog.com/product/121gw/




Phone:
Phone:
Ph: +61(2)8626 8743
Ph: +61(2)8626 8743




GLOSSARY OF TERMS
GLOSSARY OF TERMS


IEC
IEC


(International Electrotechnical Commission)
(International Electrotechnical Commission)
An organisation that publishes various international standards relating to
An organisation that publishes various international standards relating to
electrical, electronics and related technology.
electrical, electronics and related technology.


ANSI
ANSI


(American National Standards Institute).
(American National Standards Institute).
Americas non-profit standards organisation that oversee the development
Americas non-profit standards organisation that oversee the development
and use of standards in various domains.
and use of standards in various domains.


ETL
ETL


(ETL Testing Laboratories)
(ETL Testing Laboratories)
The compliance certification mark of Intertek Group in Europe.
The compliance certification mark of Intertek Group in Europe.


OP
OP


(Overload Protection)
(Overload Protection)
The voltage that a function of the Multimeter than withstand.
The voltage that a function of the Multimeter than withstand.


Accuracy
Accuracy
The closeness of a measured value to a known standard.
The closeness of a measured value to a known standard.




Low BurdenTM
Low BurdenTM
Provides low burden voltage when measuring current compared with typical
Provides low burden voltage when measuring current compared with typical
multimeters, minimising impact on your in-circuit current measurements.
multimeters, minimising impact on your in-circuit current measurements.




CHANGE LOG
CHANGE LOG


The following represents the changes made to the manual:
The following represents the changes made to the manual:


Date
Date


Changes
Changes


15/01/17
15/01/17


Added Serial Number section
Added Serial Number section


Added Hold requirement to save setup items
Added Hold requirement to save setup items


Fixed various grammar errors
Fixed various grammar errors


Added Bluetooth symbol to frontpage
Added Bluetooth symbol to frontpage


31/01/18
31/01/18


Changed incorrect fuse rating to
Changed incorrect fuse rating to
400 mA / 600 V HRC Fuse
400 mA / 600 V HRC Fuse


Added Low Z mode description
Added Low Z mode description


04/03/18
04/03/18


Added Multimeter ID to list on page 53.
Added Multimeter ID to list on page 53.


11/04/18
11/04/18


Minor grammar and a spelling change.
Minor grammar and a spelling change.


Added VA specifications
Added VA specifications
Specification format changes
Specification format changes


24/05/18
24/05/18


Added information about new firmware version 1.15 and
Added information about new firmware version 1.15 and
1.17.
1.17.


09/07/18
09/07/18


Added information about new firmware version 1.21 and
Added information about new firmware version 1.21 and
1.22.
1.22.
Added more information about use of Low Z mode.
Added more information about use of Low Z mode.


26/07/18
26/07/18


Modified formatting of VAC table.
Modified formatting of VAC table.
Described Relative mode.
Described Relative mode.
Improved burden voltage section steps.
Improved burden voltage section steps.
Fixed error in offset calibration table.
Fixed error in offset calibration table.


Changed steps for all setup items to allow for units that
Changed steps for all setup items to allow for units that
have buzzer turned off.
have buzzer turned off.
Some grammar errors resolved.
Some grammar errors resolved.


27/07/18
27/07/18


Updated IAP section, removed incorrect step.
Updated IAP section, removed incorrect step.


24/08/18
24/08/18


Updated DC mode section description for clarity.
Updated DC mode section description for clarity.


30/08/18
30/08/18


Updated sections on battery type.
Updated sections on battery type.


Added warning about lithium batteries.
Added warning about lithium batteries.


11/09/18
11/09/18


Added information about 500VA range.
Added information about 500VA range.


04/12/18
04/12/18


Moved case into optional accessory.
Moved case into optional accessory.


29/01/19
29/01/19


Added comment about modes being preserved between
Added comment about modes being preserved between
resets.
resets.






08/08/2019

Added battery voltage check to the firmware update pro-
cedure.





FIRMWARE VERSION
FIRMWARE VERSION


This manual is written for version 1.07 of the 121GW firmware. The following
This manual is written for version 1.07 of the 121GW firmware. The following
is a list of changes for each version:
is a list of changes for each version:


Version
Version


Changes
Changes


1.00
1.00


Added support for exporting and importing calibration
Added support for exporting and importing calibration
data to/from SD card.
data to/from SD card.
Displays version number on boot.
Displays version number on boot.


1.01
1.01


Internal version.
Internal version.


1.02
1.02


Internal version.
Internal version.


1.03
1.03


Fixed possible import export calibration bug.
Fixed possible import export calibration bug.


1.04
1.04


Resistance auto-ranging speed improved.
Resistance auto-ranging speed improved.


Can now turn beeper off.
Can now turn beeper off.


Negative VA values now readable.
Negative VA values now readable.


1.05
1.05


Further improved auto-ranging speed.
Further improved auto-ranging speed.


Improved Low-Z measurement up to 20KHz.
Improved Low-Z measurement up to 20KHz.


1.06
1.06


Internal version.
Internal version.


1.07
1.07


Improved VA mode over-estimation error.
Improved VA mode over-estimation error.


1.15
1.15


Improved display to show OFL in appropriate sections,
Improved display to show OFL in appropriate sections,
fixed lookup table bug with various range.
fixed lookup table bug with various range.


1.17
1.17


Improved accuracy of voltage measurement in AC and DC
Improved accuracy of voltage measurement in AC and DC
VA modes.
VA modes.


1.21
1.21


Added support for .C and .F in the Bluetooth packet.
Added support for .C and .F in the Bluetooth packet.


1.22
1.22


Added 2 more bits of data for the main data to
Added 2 more bits of data for the main data to
accommodate values over 65535.
accommodate values over 65535.


1.25
1.25


Auto-ranging loop in M Ohms range resolved.
Auto-ranging loop in M Ohms range resolved.
Burden Voltage glitch resolved.
Burden Voltage glitch resolved.


1.26
1.26


Improved resistance range noise when logging.
Improved resistance range noise when logging.


1.51
1.51


208ms data logging interval -> 200ms.
208ms data logging interval -> 200ms.
File date and time in file meta info corrected.
File date and time in file meta info corrected.
DC+AC auto ranging loop issue resolved.
DC+AC auto ranging loop issue resolved.


Amp range sensitivity improved.
Amp range sensitivity improved.
AC mode frequency persistence issue resolved.
AC mode frequency persistence issue resolved.


VAC + LPF bargraph issue resolved.
VAC + LPF bargraph issue resolved.






2.00

Improved the Auto-ranging reading speed in both ca-
pacitance and resistance ranges.






GENERAL
GENERAL


FCC/IC INFORMATION
FCC/IC INFORMATION


This device complies with Part 15 of the FCC Rules and CAN ICES-3(A). Opera-
This device complies with Part 15 of the FCC Rules and CAN ICES-3(A). Opera-
tion is subject to the following two conditions: (1) this device may not cause
tion is subject to the following two conditions: (1) this device may not cause
harmful interference, and (2) this device must accept any interference re-
harmful interference, and (2) this device must accept any interference re-
ceived, including interference that may cause undesired operations.
ceived, including interference that may cause undesired operations.


INFORMATION TO THE USER
INFORMATION TO THE USER


This equipment has been tested and found to comply with the limits for a
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
designed to provide reasonable protection against harmful interference in a
residential installation.
residential installation.


This equipment generates, uses and can radiate radio frequency energy and,
This equipment generates, uses and can radiate radio frequency energy and,
if not installed and used in accordance with the instructions, may cause
if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guaran-
harmful interference to radio communications. However, there is no guaran-
tee that interference will not occur in an installation.
tee that interference will not occur in an installation.


If this equipment does cause harmful interference to radio or television re-
If this equipment does cause harmful interference to radio or television re-
ception, which can be determined by turning the equipment off and on, the
ception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the
user is encouraged to try to correct the interference by one or more of the
following measures:
following measures:


• Reorient or relocate the receiving antenna.
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that
• Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.
to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
• Consult the dealer or an experienced radio/TV technician for help.




WARNING
WARNING


Any changes or modifications not expressly approved by the manufacturer
Any changes or modifications not expressly approved by the manufacturer
could void the user’s authority to operate the equipment.
could void the user’s authority to operate the equipment.


INTRODUCTION
INTRODUCTION


Congratulations on purchasing the EEVblog 121GW multimeter. It's one of
Congratulations on purchasing the EEVblog 121GW multimeter. It's one of
the most feature packed small form factor meters on the market, designed to
the most feature packed small form factor meters on the market, designed to
provide maximum functionality in as little bench space as possible. It pro-
provide maximum functionality in as little bench space as possible. It pro-
vides many unique features not found on other multimeters, like low burden
vides many unique features not found on other multimeters, like low burden
voltage measurement and display, simultaneous voltage and current (VA
voltage measurement and display, simultaneous voltage and current (VA
power) measurement, 15 V diode test voltage, Bluetooth built-in, and Micro
power) measurement, 15 V diode test voltage, Bluetooth built-in, and Micro
SD card data logging.
SD card data logging.


You've made a wise choice buying this instead of some questionable quality
You've made a wise choice buying this instead of some questionable quality
cheapie, it should return the favour with many years of safe and accurate ser-
cheapie, it should return the favour with many years of safe and accurate ser-
vice.
vice.


That ETL logo you see stamped on the back of the meter ensures that the me-
That ETL logo you see stamped on the back of the meter ensures that the me-
ter design has been independently tested to the latest IEC/UL/EN61010-1 3rd
ter design has been independently tested to the latest IEC/UL/EN61010-1 3rd
edition safety standard by Intertek.
edition safety standard by Intertek.


With a genuine 600 V CAT III rating and proper 1000V HRC fuses and
With a genuine 600 V CAT III rating and proper 1000V HRC fuses and
MOV+PTC protection you can feel confident and safe that you can use this
MOV+PTC protection you can feel confident and safe that you can use this
meter on most high energy mains rated equipment.
meter on most high energy mains rated equipment.


And remember, don't turn it on, take it apart!
And remember, don't turn it on, take it apart!
This meter is hackable, go for it.
This meter is hackable, go for it.


Have fun.
Have fun.
Dave Jones
Dave Jones
www.eevblog.com
www.eevblog.com




FEATURES
FEATURES


Summary
Summary


• True RMS sensing up to crest factor 10 (AD8436 chipset)
• True RMS sensing up to crest factor 10 (AD8436 chipset)
• 600 V CAT III ETL Listed Rating
• 600 V CAT III ETL Listed Rating
• 1000 V HRC fuses
• 1000 V HRC fuses
• High voltage 15V diode test mode
• High voltage 15V diode test mode
• Dual 50,000 count display
• Dual 50,000 count display
• Relative Mode
• Relative Mode
• 1ms Peak Capture
• 1ms Peak Capture
• MIN, MAX or AVG on all functions
• MIN, MAX or AVG on all functions
• Low BurdenTM current measurement feature
• Low BurdenTM current measurement feature
• OPEN and CLOSED continuity testing (for wire breaks)
• OPEN and CLOSED continuity testing (for wire breaks)
• Temperature, Capacitance, Frequency and Duty Cycle
• Temperature, Capacitance, Frequency and Duty Cycle
• Unique burden voltage measurement & display in current mode
• Unique burden voltage measurement & display in current mode
• Simultaneous voltage and current measurement and VA calculation
• Simultaneous voltage and current measurement and VA calculation
• Low Z input mode eliminates ghost voltages (not for under 12V)
• Low Z input mode eliminates ghost voltages (not for under 12V)
• Automatic touch measurement data hold
• Automatic touch measurement data hold
• Audible and visual incorrect input jack warning
• Audible and visual incorrect input jack warning
• Closed case calibration of individual ranges
• Closed case calibration of individual ranges




Logging Capabilities
Logging Capabilities


• Bluetooth LE (Low Energy) Communication
• Bluetooth LE (Low Energy) Communication
• Data logging onto a Micro SD card (CSV format)
• Data logging onto a Micro SD card (CSV format)




Mechanical
Mechanical


• Compact size
• Compact size
• Backlit display
• Backlit display






Software
Software


• Android, iPhone, and Windows 10 support, [Mac]1
• Android, iPhone, and Windows 10 support, [Mac]1
• Updatable Firmware (via micro SD Card)
• Updatable Firmware (via micro SD Card)




1 Under development
1 Under development


Batteries
Batteries


• RTC Battery (CR1220)
• RTC Battery (CR1220)
• Main Battery (4 x AA)
• Main Battery (4 x AA)
• Long battery life of >500 hrs
• Long battery life of >500 hrs






SPECIFICATIONS
SPECIFICATIONS


The following specifications are given in SI units with their accuracy notated
The following specifications are given in SI units with their accuracy notated
as ± (% of reading digits) + (number of digits) unless otherwise indicated.
as ± (% of reading digits) + (number of digits) unless otherwise indicated.


GENERAL
GENERAL


The following table represents general specifications (at 23°C ± 5°C):
The following table represents general specifications (at 23°C ± 5°C):


Item
Item


Specification
Specification


Display
Display


4 . digits 50,000 counts, dual display
4 . digits 50,000 counts, dual display


Update Rate
Update Rate


5 times per second nominal
5 times per second nominal


Operating Temperature
Operating Temperature


0°C to 50°C (32°F to 122°F)
0°C to 50°C (32°F to 122°F)


Relative Humidity
Relative Humidity


< 75%
< 75%


Altitude
Altitude


Operating below 2000 m
Operating below 2000 m


Storage Temperature
Storage Temperature


-20°C to 50°C (-44°F to 122°F)
-20°C to 50°C (-44°F to 122°F)


Temperature
Temperature
Coefficient
Coefficient


Temperature coefficient (Nominal):
Temperature coefficient (Nominal):
....=0.1 . (.................. ................) / °..
....=0.1 . (.................. ................) / °..


RMS Sensing
RMS Sensing


True RMS sensing (AD8436)
True RMS sensing (AD8436)


Ingress Protection
Ingress Protection


IP41
IP41


Pollution Degree
Pollution Degree


2
2


Safety
Safety


cETLus 3rd Edition, CAT III 600 V, CE Conformity,
cETLus 3rd Edition, CAT III 600 V, CE Conformity,
IP41, RoHS Compliant, IEC/EN61010-1: 2010 3rd
IP41, RoHS Compliant, IEC/EN61010-1: 2010 3rd
Edition
Edition


Drop Protection
Drop Protection


1 m
1 m


Transient Protection
Transient Protection


6 kV 2 ., Pulsed Source
6 kV 2 ., Pulsed Source


E.M.C.
E.M.C.


Commercial limits compliance with EN61326-1
Commercial limits compliance with EN61326-1


Bluetooth
Bluetooth


BLE112 Class 2
BLE112 Class 2


Chipset
Chipset


Hycon HY3131
Hycon HY3131
ST ARM STM32L152D
ST ARM STM32L152D


Overload Protection
Overload Protection




mA and .A
mA and .A


400 mA / 600 V DC/AC
400 mA / 600 V DC/AC
IR 10kA HRC FAST + DIODE
IR 10kA HRC FAST + DIODE


A and 500mA
A and 500mA


11 A / 1000 V DC/AC
11 A / 1000 V DC/AC
IR 20 kA HRC FAST + DIODE
IR 20 kA HRC FAST + DIODE






V & Auto V
V & Auto V


600 V DC/AC RMS PTC & MOV Protection
600 V DC/AC RMS PTC & MOV Protection


mV, Ohm & others
mV, Ohm & others


600 V DC/AC RMS PTC & MOV Protection
600 V DC/AC RMS PTC & MOV Protection


Low Battery Voltage
Low Battery Voltage


Below approx. 4.2 V
Below approx. 4.2 V


Battery Type
Battery Type


4 x 1.5 V AA alkaline battery2
4 x 1.5 V AA alkaline battery2
(ANSI/NEDA 15 A or IEC LR6)
(ANSI/NEDA 15 A or IEC LR6)


Current Consumption
Current Consumption


5 mA Typical
5 mA Typical


Battery Life
Battery Life


500 hours typical on Alkaline
500 hours typical on Alkaline


Dimension
Dimension


84 mm x 165 mm x 57 mm
84 mm x 165 mm x 57 mm
(3.31" x 6.50" x 2.24")
(3.31" x 6.50" x 2.24")


Weight
Weight


485 g (17.1 oz.) with batteries
485 g (17.1 oz.) with batteries


Accessories
Accessories


Rubber Boot, Temperature probe, Test leads
Rubber Boot, Temperature probe, Test leads


Optional
Optional
Purchase Accessories
Purchase Accessories


Magnetic hanger
Magnetic hanger
Carry Case
Carry Case






2 Use of lithium batteries may causes an issue due to their higher voltage.
2 Use of lithium batteries may causes an issue due to their higher voltage.






VOLTAGE MEASUREMENT
VOLTAGE MEASUREMENT


The following section provides the specifications
The following section provides the specifications




Range
Range


Resolution
Resolution


Accuracy
Accuracy


Test
Test


DC V
DC V


50 mV3
50 mV3


1 .V
1 .V


±0.1% + 10
±0.1% + 10


N/A
N/A




500 mV
500 mV


10 .V
10 .V


±0.1% + 10
±0.1% + 10


N/A
N/A




5 V
5 V


0.1
0.1


±0.05% + 5
±0.05% + 5


N/A
N/A




50 V
50 V


1 mV
1 mV


±0.05% + 5
±0.05% + 5


N/A
N/A




500 V
500 V


10 mV
10 mV


±0.05% + 5
±0.05% + 5


N/A
N/A




600 V
600 V


0.1 V
0.1 V


±0.1% + 10
±0.1% + 10


N/A
N/A


AC V
AC V


50 mV2
50 mV2


1 .V
1 .V


±1.2% + 15
±1.2% + 15


45 to 400 Hz
45 to 400 Hz


True RMS
True RMS


500 mV
500 mV


10 .V
10 .V


±0.8% + 10
±0.8% + 10


45 to 400 Hz
45 to 400 Hz




5 V
5 V


0.1 mV
0.1 mV


±0.3% + 10
±0.3% + 10


45 to 400 Hz
45 to 400 Hz


Crest-Factor
Crest-Factor


50 V
50 V


1 mV
1 mV


±0.3% + 10
±0.3% + 10


45 to 400 Hz
45 to 400 Hz


<10
<10


500 V
500 V


10 mV
10 mV


±0.3% + 10
±0.3% + 10


45 to 400 Hz
45 to 400 Hz




600 V
600 V


0.1 V
0.1 V


±0.5% + 10
±0.5% + 10


45 to 400 Hz
45 to 400 Hz




50 mV
50 mV


1 .V
1 .V


±2.0% + 20
±2.0% + 20


0.4 to 5 kHz
0.4 to 5 kHz




500 mV
500 mV


10 .V
10 .V


±1.5% + 10
±1.5% + 10


0.4 to 5 kHz
0.4 to 5 kHz




5 V
5 V


0.1 mV
0.1 mV


±1.5% + 10
±1.5% + 10


0.4 to 5 kHz
0.4 to 5 kHz




50 V
50 V


1 mV
1 mV


±1.5% + 10
±1.5% + 10


0.4 to 5 kHz
0.4 to 5 kHz




500 V
500 V


10 mV
10 mV


±1.5% + 10
±1.5% + 10


0.4 to 5 kHz
0.4 to 5 kHz




600 V
600 V


0.1 V
0.1 V


±1.5% + 10
±1.5% + 10


0.4 to 5 kHz
0.4 to 5 kHz


AC V+DC V
AC V+DC V


5 V
5 V


0.1 mV
0.1 mV


±1.0% + 10
±1.0% + 10


45 to 1000 Hz
45 to 1000 Hz


True RMS
True RMS


50 V
50 V


1 mV
1 mV


±1.0% + 10
±1.0% + 10


45 to 1000 Hz
45 to 1000 Hz




500 V
500 V


10 mV
10 mV


±1.0% + 10
±1.0% + 10


45 to 1000 Hz
45 to 1000 Hz




600 V
600 V


0.1 V
0.1 V


±1.0% + 10
±1.0% + 10


45 to 1000 Hz
45 to 1000 Hz






3 Using Relative Mode, zero with shorted test leads.
3 Using Relative Mode, zero with shorted test leads.


This channel has overload protection for up to 600 V.
This channel has overload protection for up to 600 V.


The AC Bandwidth extends beyond 5 kHz, but the meter is only specified and
The AC Bandwidth extends beyond 5 kHz, but the meter is only specified and
calibrated at 5 kHz. The AD8436 used specifies an additional 1% error up to
calibrated at 5 kHz. The AD8436 used specifies an additional 1% error up to
65 kHz. Higher frequency is possible with additional error above that again.
65 kHz. Higher frequency is possible with additional error above that again.


CURRENT MEASUREMENT
CURRENT MEASUREMENT


The following section refers to the current measurement ranges and their re-
The following section refers to the current measurement ranges and their re-
spective performances. The current measurement module is protected by a
spective performances. The current measurement module is protected by a
400 mA / 600 V HRC Fuse and an 11 A / 1000 V HRC Fuse.
400 mA / 600 V HRC Fuse and an 11 A / 1000 V HRC Fuse.




Range
Range


Resolu-
Resolu-
tion
tion


Accuracy
Accuracy


Tested @
Tested @


Burden Volt-
Burden Volt-
age4
age4


DC A
DC A


50 .A5
50 .A5


1 nA
1 nA


±1.5%+15
±1.5%+15


N/A
N/A


100 .V/.A
100 .V/.A




500 .A
500 .A


10 nA
10 nA


±1.5%+15
±1.5%+15


N/A
N/A


100 .V/.A
100 .V/.A




5 mA
5 mA


0.1 .A
0.1 .A


±0.25%+5
±0.25%+5


N/A
N/A


2 mV/mA
2 mV/mA




50 mA
50 mA


1 .A
1 .A


±0.25%+5
±0.25%+5


N/A
N/A


2 mV/mA
2 mV/mA




0.5 A
0.5 A


10 .A
10 .A


0.75%+15
0.75%+15


N/A
N/A


0.03 V/A6
0.03 V/A6




5 A
5 A


100 .A
100 .A


0.75%+15
0.75%+15


N/A
N/A


0.03 V/A6
0.03 V/A6




10 A
10 A


1000 .A
1000 .A


0.75%+15
0.75%+15


N/A
N/A


0.03 V/A6
0.03 V/A6


AC A
AC A


50 .A
50 .A


1 nA
1 nA


±2.0%+20
±2.0%+20


45 to 1000 Hz
45 to 1000 Hz


100 .V/.A
100 .V/.A




500 .A
500 .A


10 nA
10 nA


±2.0%+20
±2.0%+20


45 to 1000 Hz
45 to 1000 Hz


100 .V/.A
100 .V/.A




5 mA
5 mA


0.1 .A
0.1 .A


±1.0%+5
±1.0%+5


45 to 1000 Hz
45 to 1000 Hz


2 mV/mA
2 mV/mA




50 mA
50 mA


1 .A
1 .A


±1.0%+5
±1.0%+5


45 to 1000 Hz
45 to 1000 Hz


2 mV/mA
2 mV/mA




0.5 A
0.5 A


10 .A
10 .A


±1.5%+15
±1.5%+15


45 to 1000 Hz
45 to 1000 Hz


0.03 V/A6
0.03 V/A6




5 A
5 A


100 .A
100 .A


±1.5%+15
±1.5%+15


45 to 1000 Hz
45 to 1000 Hz


0.03 V/A5
0.03 V/A5




10 A
10 A


1000 .A
1000 .A


±1.5%+15
±1.5%+15


45 to 1000 Hz
45 to 1000 Hz


0.03 V/A5
0.03 V/A5






4 The measured burden voltage is displayed on the secondary display.
4 The measured burden voltage is displayed on the secondary display.


5 This mode will use the x10 amplified and may have additional offset error
5 This mode will use the x10 amplified and may have additional offset error
that should be REL’d out before measurement.
that should be REL’d out before measurement.


6 The burden voltage can change with the type of fuse fitted.
6 The burden voltage can change with the type of fuse fitted.




RESISTANCE & CAPACITANCE MEASUREMENT
RESISTANCE & CAPACITANCE MEASUREMENT


The following section outlines the specifications for the impedance ranges
The following section outlines the specifications for the impedance ranges




Range
Range


Resolution
Resolution