RS PRO IDM-8351 User manual

Instruction Manual
IDM-8351
Dual Measurement Multimeter
EN FR DE IT SP

Table of Contents
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Table of Contents
SAFETY INSTRUCTIONS............................................................................3
GETTING STARTED....................................................................................9
Characteristics ............................................................10
Appearance.................................................................12
Set Up ........................................................................22
OPERATION ..............................................................................................27
Basic Measurement Overview ......................................29
AC/DC Voltage Measurement.......................................31
AC/DC Current Measurement.......................................37
Resistance Measurement.............................................41
Diode Test...................................................................44
Capacitance Measurement...........................................45
Continuity Test ............................................................47
Frequency/Period Measurement...................................50
Temperature Measurement...........................................53
Dual Measurement Overview........................................57
Advanced Measurement Overview................................62
dBm/dB/W Measurement .............................................63
Max/Min Measurement.................................................66
Relative Measurement .................................................67
Hold Measurement ......................................................69
Compare Measurement................................................70
Math Measurement......................................................72
SYSTEM/DISPLAY CONFIGURATION.......................................................76
View Serial Number .....................................................77
View Version Number ..................................................78
Brightness Settings .....................................................79

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Continuity Beeper Settings ...........................................80
Input Resistance Settings.............................................81
Frequency/Period Input Jack Settings ...........................82
Digital Filter.................................................................83
Restore Factory Default Settings ..................................87
Trigger ........................................................................88
DIGITAL I/O................................................................................................90
Digital I/O Overview.....................................................91
REMOTE CONTROL ................................................................................. 95
Configure Remote Control Interface..............................96
Return to Local Control ..............................................100
COMMAND OVERVIEW .......................................................................... 101
Command Syntax.......................................................101
Command List ...........................................................106
FAQ.........................................................................................................152
APPENDIX...............................................................................................154
System Menu Tree.....................................................154
Factory Default Settings.............................................155
Replacing the AC Source Fuse ...................................156
Replacing the Input Fuse ...........................................157
Status system............................................................159
Specifications ............................................................161
Additional Specifications ............................................167
Dimensions ...............................................................173
Declaration of Conformity...........................................174
INDEX......................................................................................................175

SAFETY INSTRUCTIONS
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SAFETY INSTRUCTIONS
This chapter contains important safety instructions that you must
follow during operation and storage. Read the following before
any operation to ensure your safety and to keep the instrument in
the best possible condition.
Safety Symbols
These safety symbols may appear in this manual or on the instrument.
WARNING
Warning: Identifies conditions or practices that could result in
injury or loss of life.
CAUTION
Caution: Identifies conditions or practices that could result in
damage to the DMM or to other properties.
DANGER High Voltage
Attention Refer to the Manual
Protective Conductor Terminal
Earth (ground) Terminal

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Do not dispose electronic equipment as unsorted municipal
waste. Please use a separate collection facility or contact the
supplier from which this instrument was purchased.
Safety Guidelines
General
Guideline
CAUTION
Make sure that the voltage input level does not exceed
DC1000V/AC750V.
Make sure the current input level does not exceed 12A.
Do not place any heavy object on the instrument.
Avoid severe impact or rough handling that can lead to
damaging the instrument.
Do not discharge static electricity to the instrument.
Use only mating connectors, not bare wires, for the terminals.
Do not block or obstruct the cooling fan vent opening.
Do not perform measurement at the source of a low-voltage
installation or at building installations (Note below).
Do not disassemble the instrument unless you are qualified as
service personnel.
Make sure that the COM terminal to earth is limited to 500Vpk.
Remove all test leads before disconnecting the mains power
cord from the socket.

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(Note) EN 61010-1:2010 specifies the measurement categories and their
requirements as follows. The IDM-8351 falls under category II 600V.
Measurement category IV is for measurement performed at the source of low-
voltage installation.
Measurement category III is for measurement performed in the building
installation.
Measurement category II is for measurement performed on the circuits directly
connected to the low voltage installation.
Power Supply
WARNING
AC Input voltage: 100/120/220/240 V AC
50/60Hz
The power supply voltage should not fluctuate more than 10%.
Connect the protective grounding conductor of the AC power
cord to an earth ground, to avoid electrical shock.
Fuse
WARNING
Fuse type: 0.125AT 100/120VAC
0.063AT 220/240 VAC
Make sure the correct type of fuse is installed before power up.
To avoid risk of fire, replace the fuse only with the specified
type and rating.
Disconnect the power cord before fuse replacement.
Make sure the cause of a fuse blowout is fixed before fuse
replacement.

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Cleaning the
Instrument
Disconnect the power cord before cleaning.
Use a soft cloth dampened in a solution of mild detergent and
water. Do not spray any liquid.
Do not use chemicals containing harsh material such as
benzene, toluene, xylene, and acetone.
Operation
Environment
Location: Indoor, no direct sunlight, dust free, almost non-
conductive pollution (Note below)
Temperature: 0°C to 50°C
Humidity: < 30°C: < 80%RH(non-condensing);
30°C~40°C:<70%RH(non-condensing); >40°C:
<50%RH (non-condensing)
Altitude: <2000m
(Note) EN 61010-1:2010 specifies the pollution degrees and their requirements as
follows. The IDM-8351 falls under degree 2.
Pollution refers to “addition of foreign matter, solid, liquid, or gaseous (ionized
gases), that may produce a reduction of dielectric strength or surface
resistivity”.
Pollution degree 1: No pollution or only dry, non-conductive pollution occurs.
The pollution has no influence.
Pollution degree 2: Normally only non-conductive pollution occurs.
Occasionally, however, a temporary conductivity caused by condensation must
be expected.
Pollution degree 3: Conductive pollution occurs, or dry, non-conductive
pollution occurs which becomes conductive due to condensation which is

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expected. In such conditions, equipment is normally protected against
exposure to direct sunlight, precipitation, and full wind pressure, but neither
temperature nor humidity is controlled.
Storage
environment
Location: Indoor
Temperature: -40°C to 70°C
Humidity: <90%RH(non-condensing)
Disposal
Do not dispose this instrument as unsorted municipal waste.
Please use a separate collection facility or contact the supplier
from which this instrument was purchased. Please make sure
discarded electrical waste is properly recycled to reduce
environmental impact.

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Power cord for the United Kingdom
When using the unit in the United Kingdom, make sure the power cord meets the
following safety instructions.
NOTE: This lead/appliance must only be wired by competent persons
WARNING: THIS APPLIANCE MUST BE EARTHED
IMPORTANT: The wires in this lead are coloured in accordance with the following code:
Green/ Yellow:
Earth
Blue:
Neutral
Brown:
Live (Phase)
As the colours of the wires in main leads may not correspond with the coloured
marking identified in your plug/appliance, proceed as follows:
The wire which is coloured Green & Yellow must be connected to the Earth terminal
marked with either the letter E, the earth symbol or coloured Green/Green &
Yellow.
The wire which is coloured Blue must be connected to the terminal which is marked
with the letter N or coloured Blue or Black.
The wire which is coloured Brown must be connected to the terminal marked with
the letter L or P or coloured Brown or Red.
If in doubt, consult the instructions provided with the equipment or contact the
supplier.
This cable/appliance should be protected by a suitably rated and approved HBC
mains fuse: refer to the rating information on the equipment and/or user instructions
for details. As a guide, a cable of 0.75mm2should be protected by a 3A or 5A fuse.
Larger conductors would normally require 13A types, depending on the connection
method used.
Any exposed wiring from a cable, plug or connection that is engaged in a live
socket is extremely hazardous. If a cable or plug is deemed hazardous, turn off the
mains power and remove the cable, any fuses and fuse assemblies. All hazardous
wiring must be immediately destroyed and replaced in accordance to the above
standard.

GETTING STARTED
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GETTING STARTED
This chapter describes the IDM-8351 multimeter in a nutshell,
including accessories, package contents, its main features and
front / rear panel introduction.
Characteristics ............................................................10
Accessories............................................................................... 11
Appearance.................................................................12
IDM-8351 Front Panel............................................................... 12
Display Overview ...................................................................... 19
Rear Panel ................................................................................ 20
Set Up ........................................................................22
Tilting the Stand ........................................................................ 22
Power Up................................................................................... 23
How to Use the Instrument........................................................ 23

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Characteristics
The IDM-8351 is a portable, dual-display digital multimeter suitable for a wide
range of applications, such as production testing, research, and field verification.
Performance
DCV accuracy: 0.012%
High current range: 10A
High Voltage range: 1000V
High ACV frequency response: 100kHz
Features
The fastest sampling rate is (320 Readings / sec) for ADC and
PC transmission.
The diode test open-circuit voltage range is ≑6V/1mA.
120000 count display
Multiple functions: ACV, DCV, ACI, DCI, 2WR, 4WR, Cap,
Freq, Period ,Temp, Continuity, Diode test, MAX/MIN, Avg,
REL, dB, dBm, Hold, MX+B, 1/X, REF, %, Compare.
Manual or Auto ranging
AC true RMS
Data logging to PC using an Excel Add-In.

GETTING STARTED
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Interface
USB device port supports USBCDC and USBTMC.
RS232
Digital I/O port can used in either pass/fail testing (Compare
function) or have the output state remotely controlled. Only one
function at a time can be used.
Software
Excel Addins
LABVIEW driver
Accessories
Standard
Accessories
Part number
Description
82DMx83510E x1
CD-ROM (User Manual, Software, Driver)
82DM-83511M x1
Safety Instruction Sheet
GTL-207
Test leads
Optional
Accessories
Part number
Description
GTL-246
USB Cable, USB 2.0, A-B type, 1200mm
GTL-205
Temperature Probe Adapter with Thermal
Coupling (K-type)

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Appearance
IDM-8351 Front Panel
DCV ACV /2W/4W Hz/P 2ND
REL MX/MN HOLD FILTER MENU EXIT
SHIFT
RANGE
RANGE
Enter
POWER
120000 Counts Dual Measurement Multimeter
DCI ACI dB LOCAL
REL# MATH COMP TYPE
1000V
750V
500Vpk
INPUT
FUSE
1.25A/1000V
VW
Auto
DC + AC
TEMP
SENSE
W4W
COM
200Vpk
H I
LO
10A 1A
CAT II 600V
dBm
Function keys
Sense LO TerminalPower Switch
Main Display
DC/AC 1A
Terminal,
1.25A/1000V
Fuse Holder
COM
Terminal
Arrow keys
DC/AC 10A Terminal
Sense HI Terminal
V
Terminal
W
Power Switch
POWER
Turns On or Off the main power. For the
power up sequence, see page 23.
Main Display
Shows measurement results and parameters. For display
configuration details, see page 79 (brightness setting).
For an overview of the main display, see page 19.

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W
V
Input
Terminal
1000V
750V
500Vpk
INPUT
FUSE
1.25A/1000V
VW
SENSE
W4W
COM
200Vpk
H I
LO
10A 1A
CAT II 600V
This terminal is used for all measurements
except for DC/AC current measurements.
COM Terminal
1000V
750V
500Vpk
INPUT
FUSE
1.25A/1000V
V W
SENSE
W 4W
COM
200Vpk
H I
LO
10A 1A
CAT II 600V
Accepts ground (COM) line in all
measurements.
The maximum withstand voltage between this
terminal and earth is 500Vpk.
DC/AC 1A
Terminal
AMPS Fuse
Holder
1000V
750V
500Vpk
INPUT
FUSE
1.25A/1000V
V W
SENSE
W 4W
COM
200Vpk
H I
LO
10A 1A
CAT II 600V
Low current measurement terminal. Accepts
DC/AC Current input. For details see page 37.
DC: 10mA~1A
AC: 10mA~1A
As a fuse, protects the instrument from over-
current. Rating: F1.25A, 1000V.(This terminal
accepts DC/AC current input)
For the fuse replacement procedure, see page
157.

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DC/AC 10A
Terminal
1000V
750V
500Vpk
INPUT
FUSE
1.25A/1000V
V W
SENSE
W 4W
COM
200Vpk
H I
LO
10A 1A
CAT II 600V
High range current measurement terminal.
Accepts DC/AC Current input. For DCI or ACI
details, see page 37.
Sense HI Terminal
1000V
750V
500Vpk
INPUT
FUSE
1.25A/1000V
VW
SENSE
W4W
COM
200Vpk
H I
LO
10A 1A
CAT II 600V
Accepts HI sense line in 4W resistance
measurement.
Sense LO
Terminal
Accepts LO sense line in 4W resistance
measurement.
Measurement
Keys
The top row of measurement keys are used for basic DMM
measurements such as voltage, current, resistance,
capacitance and frequency. The bottom row of measurement
functions are used for more advanced functions.
Each key has a primary and secondary function. The secondary
function is accessed in conjunction with the SHIFT key.
Upper Measurement keys
DCV
DCV
DCI
Measures DC Voltage (page 31).
DCI
(SHIFT→DCV)
SHIFT
EXIT
→
DCV
DCI
Measures DC Current (page 37).

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17/11/2016 Version No. 002 15
ACV
ACV
ACI
Measures AC Voltage (page 31).
ACI
(SHIFT→ACV)
SHIFT
EXIT
→
ACV
ACI
Measures AC Current (page 37).
DCV + ACV
DCV
DCI
+
ACV
ACI
Measures DC + AC voltage (page 31).
DCI+ACI
SHIFT
EXIT
→
DCV
DCI
+
ACV
ACI
Measures DC + AC current
(page 37).
2W/4W
2W/4W
TEMP
Measures resistance (2W or 4W) See page 41.
TEMP
(SHIFT →
2W/4W)
SHIFT
EXIT
→
2W/4W
TEMP
Measures temperature. See page 53.
/
/
Measures diodes or continuity, depending on the
selected mode. See page 44 and 47, respectively.
(SHIFT→/)
SHIFT
EXIT
→
/
Measures capacitance. See page 45.
Hz/P
Hz/P
dB
Measures the frequency or period of a signal,
depending on the selected mode. See page 50.
dB
(SHIFT →Hz/P)
SHIFT
EXIT
→
Hz/P
dB
Measures dB. See page 65.

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2ND
2ND
LOCAL
As the 2ND key, selects the measurement item on
the 2nd display (page 57). Pressing and holding
for more than 1 second turns off the 2nd display.
As the Local key, releases the unit from remote
control and returns the instrument to local panel
operation (page 99).
Lower Measurement keys
REL
REL
REL#
Measures the Relative value (page 67).
REL#
(SHIFT→REL)
SHIFT
EXIT
→
REL
REL#
Manually sets the reference value for the
Relative value measurement.
MX/MN
MX/MN
MATH
Measures the Maximum or the Minimum value (page
66).
MATH
(SHIFT→MX/MN)
SHIFT
EXIT
→
MX/MN
MATH
Enters the Math measurement mode. The
supported math functions include MX+B,
REF% and 1/X. See page 72 for details.
HOLD
HOLD
COMP
Activates the Hold function (page 69).
COMP
(SHIFT→HOLD)
SHIFT
EXIT
→
HOLD
COMP
Activates the compare measurement
function. See page 70.
FILTER
FILTER
TYPE
Turns the digital filter on or off. See page 83.

GETTING STARTED
17/11/2016 Version No. 002 17
TYPE
(SHIFT→
FILTER)
SHIFT
EXIT
→
FILTER
TYPE
Sets the type of filter and the size of the
rolling window. See page 84.
MENU
MENU
dBm
Enters the configuration menu for System Settings,
Measurement Settings, Temperature measurement
settings, I/O settings, Terminal character settings
and Firmware installation. See page 76 for the
system menu.
dBm
(SHIFT→MENU)
SHIFT
EXIT
→
MENU
dBm
Measures dBm/W, see page 63.
SHIFT/EXIT
SHIFT
EXIT
When used as a SHIFT key, it is used to access the
secondary functions associated with the
measurement keys.
When used as an EXIT key, it will exit out of menu
systems.
AUTO/ENTER
Auto
Enter
When used as an AUTO key, it will set the range of
the selected function to autorange.
When used as an ENTER key, it will confirm the
entered value or menu item.

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Arrow Keys
RANGE
RANGE
The arrow keys are used to navigate the menu
system and edit values.
The Up and Down arrow keys will also manually
set the range for the voltage and current
measurements.
The Left and Right arrow keys will also toggle
the refresh rate between the fast, medium and
slow (F, M, S) rates.