AEMC MTX 3282B Instruction manual

AEMC®Instruments d.b.a. Chauvin Arnoux®, Inc.
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USER MANUAL
AEMC®Instruments d.b.a. Chauvin Arnoux®, Inc.
15 Faraday Drive • Dover, NH 03820
Tel. [phone] • Fax: [phone]
99-MAN 100340 – v6– 06/14

General instructions
2 100,000-count Graphical Multimeters
Contents
General Instructions ..................................................................................................................................... 3
Introduction ......................................................................................................................................................................3
Symbols used on the instrument ...................................................................................................................................3
Precautions and safety measures .................................................................................................................................3
Safety features .................................................................................................................................................................4
Maintenance, metrological verification..........................................................................................................................4
Warranty............................................................................................................................................................................4
Cleaning ............................................................................................................................................................................4
Measurement input protection systems........................................................................................................................5
Special functions .............................................................................................................................................................5
Description of the instrument ...................................................................................................................... 6
Front, keyboards (illustration) ........................................................................................................................................6
Rear (illustration, markings) ...........................................................................................................................................6
Measurement terminal block (illustration, markings) ..................................................................................................6
Front (description) ...........................................................................................................................................................7
Inputs.................................................................................................................................................................................9
Display...............................................................................................................................................................................9
Functional description................................................................................................................................ 10
Preparation for use ........................................................................................................................................................10
Initial settings .................................................................................................................................................................14
Specific configurations of the instrument...................................................................................................................15
Initialisation of the values .............................................................................................................................................16
Access to main functions..............................................................................................................................................17
Range management .......................................................................................................................................................18
Display HOLD management HOLD, REL, SURV, SPEC, MEM...................................................................................18
Access to secondary functions....................................................................................................................................25
MATH Function...............................................................................................................................................................27
Favorite function ............................................................................................................................................................29
SX-DMM Software kit (option) ......................................................................................................................................31
Bluetooth (on –BT version)...........................................................................................................................................31
Technical specifications ............................................................................................................................. 33
Voltage measurement....................................................................................................................................................33
Current measurement....................................................................................................................................................35
Frequency measurement ..............................................................................................................................................36
Resistance measurement..............................................................................................................................................37
Continuity mode.............................................................................................................................................................37
Test diode .......................................................................................................................................................................37
Capacitance measurement ...........................................................................................................................................38
Temperature measurement with Pt100 or Pt1000 sensor (MTX 3282B, MTX 3283B) .............................................38
Temperature measurement with J or K thermocouple ..............................................................................................38
dBm measurement.........................................................................................................................................................38
Positive or negative peak measurement .....................................................................................................................39
Resistive power..............................................................................................................................................................39
Duty ratio DC+, DC-........................................................................................................................................................39
Pulse counting CNT+, CNT- ..........................................................................................................................................39
Clock................................................................................................................................................................................40
Influences........................................................................................................................................................................40
Multimeter traceability, calibration...............................................................................................................................40
General specifications ................................................................................................................................ 41
Environmental conditions .............................................................................................................................................41
Power ..............................................................................................................................................................................41
Display.............................................................................................................................................................................41
Safety...............................................................................................................................................................................42
CEM .................................................................................................................................................................................42
RS232 DB9F and USB optical cables (options) ..........................................................................................................42
Mechanical characteristics......................................................................................................................... 42
Box...................................................................................................................................................................................42
Packaging .......................................................................................................................................................................42
Supply, accessories.................................................................................................................................... 43
Index............................................................................................................................................................. 44

General instructions
100,000-count Graphical Multimeters 3
General instructions
Introduction You have just acquired a 100,000-count graphical multimeter.
Thank you for your trust in our products.
It complies with safety standard EN 61010-1 (2001), double insulation, relative
to electronic measuring instruments.
For optimum service, read this MANUAL carefully and comply with the
operating precautions.
Symbols used on
the instrument
Warning: Risk of danger.
Refer to the operating MANUAL to find out the nature of the potential hazards and
the action necessary to avoid such hazards.
Earth terminal Equipment protected throughout by double insulation.
The rubbish bin with a line through it means that in the European Union, the product
must undergo selective disposal for the recycling of electric and electronic material,
in compliance with Directive WEEE 2002/96/EC.
Attention : Risk of electrical shock
Precautions and
safety measures
Read carefully all the notes preceded by the symbol .
If you use this instrument in a way which is not specified, the protection
which it provides may be compromised, putting you in danger.
The safety of any system incorporating this instrument is the responsibility of
the system assembler.
This instrument has been designed for use indoors:
- in an environment with pollution level 2,
- at an altitude of less than 2000 m,
- at a temperature between 0° C and 55° C
- with relative humidity of less than 80% up to 31° C.
Measurement category III for voltages no higher than 1000 V (AC or DC) in
relation to the earth.
Measurement category IV for voltages no higher than 600 V (AC or DC) in
relation to the earth.
Definition of
measurement
categories
CAT III: Measurement category III corresponds to measurements on building installations.
Example: measurements on distribution panels, cabling, etc.
CAT IV : Measurement category IV corresponds to measurements taken at the source of low-
voltage installations
Example: metering and measurements on overvoltage protection devices...
before use
Comply with environmental and storage conditions.
For your safety, only use the leads delivered with the instrument:
they comply with the norm EN 61010-1 (2001).
Before using it, systematically check that it is in perfect condition.
during use
As a safety measure, use only suitable leads and accessories supplied
with the instrument or approved by the manufacturer.
If the measurement category of the accessory is different from that of the
apparatus, the lowest category applies to the unit.
Never exceed the protection limit values indicated in the specifications for
each type of measurement.
Before changing the function, disconnect the measurement leads from the
circuit measured.
Never measure resistances on a live circuit.
When the instrument is connected to the measurement circuits, never touch
an unused terminal.

General instructions
4 100,000-count Graphical Multimeters
General instructions (cont’d)
Safety features
It is impossible to access the battery or fuse compartment without first
disconnecting the measurement leads.
When measuring voltages greater than 60 VDC or 30 VAC, the symbol
flashes on the display.
Automatic detection of a connection on the "Ampere" terminal.
When there is a persistent range overrun, an intermittent buzzer indicates the
risk of electric shock.
Maintenance and
metrological
verification
Any access to the internal circuits for adjustment, servicing or repair of the unit
under power must be undertaken only by qualified personnel, after reading the
instructions in this MANUAL.
A qualified person is a person who is familiar with the installation, its
construction, its use and the hazards that exist. They are authorized to activate
and deactivate the installation and equipment, in compliance with the safety
instructions.
For all repairs under or outside of the warranty, return the device to your retailer.
Warranty
This equipment is guaranteed for 3 years against any defect in materials or
workmanship, in accordance with the general terms and conditions of sale.
During this period, the equipment can only be repaired by the manufacturer. The
manufacturer reserves the right to carry out repair or replacement of all or part of
the equipment.
If the equipment is returned to the manufacturer, initial transport costs shall be
borne by the customer.
The warranty does not apply in the event of:
unsuitable use of the equipment or use with other incompatible equipment
modification of the equipment without explicit authorization from the
manufacturer’s technical services
repair carried out by a person not certified by the manufacturer
adaptation to a specific application, not provided for in the definition of the
equipment or by the operating MANUAL
an impact, a fall or flooding.
Unpacking -
repacking
All the equipment was verified mechanically and electrically before shipping.
When you receive it, carry out a quick check to detect any damage that may
have occurred during transport. If necessary, contact our sales department
immediately and register any legal reservations with the carrier.
In the event of reshipping, it is preferable to use the original package. Indicate
the reasons for the return as clearly as possible in a note attached to the
equipment.
Cleaning
Turn the instrument off.
Clean it with a damp cloth and soap.
Never use abrasive products or solvents.
Allow to dry before any further use.

General instructions
100,000-count Graphical Multimeters 5
General instructions (cont’d)
Measurement input
protection systems
These multimeters are equipped with several protection systems:
Varistor protection clips any transient overvoltages on the measurement
terminals.
PTC (positive temperature coefficient) protection protects against permanent
overvoltages less than or equal to 1000 V during capacitance or resistance
measurements and diode tests.
This protection is reset automatically after the overload.
A fuse (11 A) provides protection during intensity measurements.
Special functions
Automatic current
measurement
detection
The number of input terminals is limited to 3: V, COM, A. Connection of the lead
to the "Ampere" terminal automatically selects the corresponding function.
When a function modification by the control keyboard is incompatible
with the lead connection, it triggers a buzzer and a visual alarm (LEADS).
The current measurement is performed using autorange over the whole range.
Auto power-off
If the function is validated in the Sleep menu: the instrument shuts down
automatically after 30 minutes if no action has occurred on the front panel during
that time.
The instrument can be powered up again by pressing the key.
Automatic power-off is inhibited in:
Surveillance mode (SURV)
Memorize mode (MEM)
Communication mode (optical link - RS232C, USB, Bluetooth)
when the value measured (Voltage or Current) on the multimeter's
inputs exceeds the danger level.
Alert signal
Danger threshold
An intermittent buzzer sounds:
on the "Voltage" position, when the range is exceeded (MANUAL and
AUTO mode - last range)
on the "Current" position, when the range is exceeded (MANUAL) mode,
when 10 Amperes or more is measured
if the position of the leads and the function selected are incompatible
when the danger thresholds are exceeded (function activated)
When the range is exceeded, the buzzer is accompanied by display of "O. L".
When this symbol is activated:
the voltage on the "Volt" input exceeds 60 VDC or 30 VAC
the current injected between the "Ampere"and COM exceeds 10 A
the range is exceeded (voltage or current) in MANUAL mode

Description of the instrument
6 100,000-count Graphical Multimeters
Description of the instrument
Front panel
+ keyboards
(illustration)
Rear (illustration
+ markings)
Measurement
terminal block
(illustration
+ markings)
Display
Keyboards
Lower casing
Terminal
strip
Jack connector
ON/OFF
Key

Description of the instrument
100,000-count Graphical Multimeters 7
Description of the instrument (cont'd)
Front (description)
1 power on/off key Starting the multimeter.
Stopping the multimeter.
If there is a multimeter malfunction, a long press (> 1 s) on this key can be
used to return to normal operation.
8 keys for selecting th
e
main functions
Voltage measurement or access to the measurement type: AC, DC or AC+DC
Selection using this key or the keys.
Validation using the key or after 2 s.
Current measurement or access to the measurement type: AC, DC or AC+DC
Selection using this key or the keys.
Validation using the key or after 2 s.
Measurement of Frequency (Hz) on a VAC voltage or access to the MANUAL
frequency range < 900 kHz (default) or > 900 kHz.
A long press opens the menu for changing the voltage range.
Selection using the keys.
Validation using the or keys.
Voltage range quick change using the keys.
The selected range is recalled in the help line (i), see page 9.
Measurement of Resistance (Ohm)
By pressing again:
Access to the Continuity test ( )
Access to Diode test ( )
Measurement of Temperature or access to the types of temperature
measurements: ° C, ° F or K.
Selection using the keys.
Validation using the key or after 2 s.
By pressing this key during measurement type selection, you can access
the sensor type:
-platinum probes: Pt 100, Pt 1000 only on MTX 3282B and MTX 3283B
-thermocouples: J (TC J), K (TC K)
Selection using the keys.
Validation using the key or after 2 s.
The selected scale is recalled in the help line (i), see page 9.
Measurement of Capacitance
"Favorite" measurement configurable by the user.
A long press opens the "favorite" function configuration menu.
For the menu's configuration, see §. Function.

Description of the instrument
8 100,000-count Graphical Multimeters
Description of the instrument (cont'd)
Instrument Configuration menu.
This key can also be used to exit from a menu or submenu after validating it.
3 keys for navigation and
modification of the menus
Selection of a menu or function (up/down navigation).
Increase or decrease of the variable selected.
Selection of a function (left/right navigation).
Modification of a function.
Movement within sub-menus.
6 keys for activating the
instrument's various modes
Selection of the operating mode:
AUTO, AUTO PEAK (MTX 3282B, MTX 3283B ), MANUAL.
Selection using this key or the keys.
Validation using the key or after 2 s.
If the measurement is single range, the range defined is forced and there is no
effect if this key is pressed.
Example:Diode test, continuity test and temperature measurement.
By pressing one of the keys, you can switch directly to MANUAL mode
and then modify the range.
Activation, deactivation of the REL (relative) mode.
When it is active, a long press opens a window for setting the reference.
Activation, deactivation of the display of the specifications for the function and
range selected.
Activation of HOLD or AUTO HOLD mode, deactivation NO HOLD.
Selection using this key or the keys.
Validation using the key or after 2 s.
Activation, deactivation of the SURV (surveillance) mode.
A long press opens a window for viewing the most recent records.
Closed by a short press.
Activation, deactivation of the MEM (automatic recording) mode.
A long press opens the MEM Function menu.
2 utilit
y
ke
y
s
Back-lighting of the display in dark environments.
A long press opens the menu for adjusting the contrast on the LCD.
Selection of the functions for the 3secondary displays.
Selection by successive presses on this key.
A long press can be used to exit from this mode.

Description of the instrument
100,000-count Graphical Multimeters 9
Description of the instrument (cont'd)
Inputs
Input for voltage and frequency measurements, diode tests, resistance
measurements, continuity tests, and capacitance or temperature
measurements.
Input for current measurements.
Reference input.
Display
(foot of the screen)
The multimeters in this range are equipped with a graphical LCD screen
(58 mm x 58 mm) with 160 x 160 resolution for comfortable reading.
Reading of the LCD can be optimized by varying the orientation of the
display, the adjustment of contrast and, if necessary, using the backlighting.
The modes, the functions selected, the electrical or physical values
measured and the alert symbols are clearly shown on the display.
The user can call up help (i) regarding the function selected.
The main display is accompanied by its sign and the unit.
Depending on the current selections, the display may be graphical or digital:
Graphical display
The graphical
window and the
bargraph constantly
track the evolution of
the measurement in the
range selected.
The graphical window can be used to monitor the evolution of the principal
measurement.
Example
Display of
secondary functions
The main display
and the bargraph
constantly track the
evolution of the
measurement.
The secondary displays are intended for the SPEC, REL, MEM, SURV and
888888 functions:
Example
AUTO
1.5000 DC
V
HOLD
iPress the main function key …
> 60s
2.5000 V
AUTO
1.5000
MIN
MAX
-1.0000 V
2.5000 V
1.3000 V
DC
V
i
Lower status line
Bargraph
Graphical window
Help on function
Upper status line
Main display
Main display
Secondary display 1
Secondary display 2
Secondary display 3
Bargraph
Upper status line
Lower status line
Help on function
SURV
AVG
MEM 2
Recording started
1
0
-
1
0
-10 0 10
i

Functional description
10 100,000-count Graphical Multimeters
Functional description
Preparation for use
Instructions before
activation To use this instrument, you must comply with the usual safety rules in order:
-to protect you against the dangers of the electric current,
-to protect the multimeter against incorrect operations.
For your safety, only use the leads delivered with the instrument. Before
using it, systematically check that it is in perfect condition.
Instrument
power supply The 3 multimeters in this range operate with three 1.5 V alkaline batteries
(LR6-AM3 AA) or three 1.2 V Ni-MH rechargeable batteries (accumulators)
of the same type:
The MTX 3281B is delivered with three 1.5 V alkaline batteries
(LR6-AM3 AA). It can operate with accumulators, but does not allow in
situ recharging (see §. Accessories delivered as options).
The MTX 3282B and MTX 3283B multimeters are delivered with three 1.2
V
Ni-MH accumulators and charger (12 VDC 7.2 VA) for AC power operation
while simultaneously charging the batteries.
When the charger is connected directly to the instrument, the
accumulators can be recharged without removing them from the
multimeter.
The multimeter can only operate if the accu./batteries are in place.
Power on Using the key opposite.
Charge indicator A charge status indicator for the batteries or accumulators is constantly
shown on the display:
: Batteries or accumulators > 75 % charged
: Batteries or accumulators > 25 % charged
: minimum charge level < 25 %
The symbol flashes on the display and a buzzer sounds if the power
voltage is insufficient (only 30 min charge life).
As the specifications will no longer be guaranteed, you must then replace
the batteries or recharge the accumulators (see next page).
There can be differences between the display of the charge level (symbol)
and the real charge level of the accumulators, according to the quality and
the performances of those.
To avoid this risk, we recommend to use the same accumulators (HX0051)
as those delivered by the manufacturer (see p. 43).
When getting started, the apparatus needs a few seconds to display a
correct level of charge (symbol).