AEMC C.A 5240 User manual

1
ENGLISH User manual
Digital Multimeter
Model C.A 5240
!!
!!
!MULTIMETER
Hz
V
V
OFF
mA
10A
MIN
MAX
RANGE
HOLD
PEAK
10A
500mA
FUSED
10 A max
FUSED
C . A 5240
!
COM
600V
CAT III
PEAK
V
+
HOLD
30
20
10
040
TRUE RMS MULTIMETER

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Meaning of the symbol
Warning ! Please refer to the User’s Manual before using the
instrument.
In this User’s Manual, the instructions preceded by the above
symbol, should they not be carried out as shown, can result in a
physical accident or damage the instrument and the installations.
Meaning of the symbol
This device is protected by a double insulation or by a reinforced
insulation. No linking is required from the protection earth terminal
to ensure the electrical security.
Thank you for purchasing a C.A 5240 Multimeter.
To get the best service from this instrument :
!read this user's manual carefully,
!respect the safety precautions detailed.
SAFETY PRECAUTIONS
!Ensure that the value and type of fuses are respected; otherwise
the instrument may be damaged and the warranty cancelled.
- 0.5 A HBC fuse – rapid F (500 V min. – 10 kA – 6.3 x 32 mm)
- 12 A HBC fuse – gR (600 V min.– 300 kA – 10.3 x 38 mm)
!Never use on voltage to earth circuits above 600V, with a voltage
surgecategory of overIII,thatistosay, fixedindustrialanddomestic
installations (ref. IEC 664-1).
!To be used indoors in environments with a maximum pollution
degree of 2 (ref. IEC 664-1), a temperature between O and 50°C
and relative humidity below 70%.
!Use accessories which conform to safety standards
(IEC 1010-2-031), with a minimum voltage of 600 V and a voltage
surge of category III.
!Never open the multimeter case before disconnecting from any
electrical source.
!Never connect up to a circuit to be measured if the multimeter
case is not closed correctly.
!Before any measurements are taken, ensure the leads and switch
are in the correct positions.
!Never measure resistances on a circuit with the power switched on.

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CONTENTS
1 - Presentation ............................................................................3
2 - Description...............................................................................4
3 - DC and AC voltage (V) ............................................................5
4 - Frequency (Hz) ........................................................................6
5 - Continuity and resistance (Ω/ ) .........................................6
6 - Diode test ( ) ........................................................................7
7 - Capacitance ( ) ...................................................................8
8 - DC and AC current (A and mA)...............................................8
9 - General specifications .............................................................9
10 - To order (accessories and spares)........................................10
11 - Warranty ................................................................................10
12 - Maintenance ..........................................................................10
Technical and Sales Assistance............................................11
13 - Appendix................................................................................32
1 - PRESENTATION
The C.A. 5240 multimeter is intended to satisfy the everyday
requirements of electricity professionals :
- true RMS measurement
- 40,000 count digital display and 40 segment bargraph
- automatic or manual selection of measurement
- stops automatically after 30 minutes if a command or function has
not been activated
- possibility of permanent operation (see RANGE).
Various measurement accessories broaden the scope of application
or provide the multimeter with new functions.
See the list of accessories and references on the “ To Order ” page
(Documentation upon request).
Note: Always use accessories suitable for the voltageandthevoltage
surge category of the circuit to be measured (as per IEC 1010).

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2 - DESCRIPTION
(See drawing in 13 - APPENDIX)
" "
" "
" LIQUID CRYSTAL DISPLAY
!!
!!
!40,000 count measurement (height of figures: 10 mm)
Rate : 2 measurements per second
!!
!!
!40-segment bargraph
Rate : 20 measurements per second
Note : the bargraph is inhibited inV~ +
...
,Hz and
!!
!!
!Automatic display of all command, measurement and function
symbols
!!
!!
!Battery level indicator :
+
-
!!
!!
!Overrun indicator :
- the 4th from the left flashes
- arrow at the far end of the bargraph
$$
$$
$CONTROL BUTTONS
!!
!!
!In mA and 10A, to switch from direct (
...
) to alternating (~) and
vice versa
!!
!!
!In V , to switch from V
...
to V
...
+ ~and vice versa
!!
!!
!In Ω, to switch from Ωto and vice versa
HOLD
!!
!!
!To hold the display of the last measurement. HOLD is displayed.
MIN - MAX / PEAK
!!
!!
!To display minimum and maximum values one after the other.
The instrument goes into manual measurement selection.
!!
!!
!Hold this button down to switch to PEAK mode (1 ms.) Only active
in V~, mA and A~.
RANGE
!!
!!
!Selection of measurement: to switch from automatic to manual
mode. Hold the button down (> 3 secs) to switch back to automatic
mode.
Note : RANGEcannotbeactivatedinHz,automatic selection only.
!!
!!
!Permanent operation: possibility of inhibiting automatic cut-out,
by keeping this button pressed before activating the switch from
the OFF position.
Return to the OFF positioncancelsoutpermanent operation mode:
the instrument automatically cuts out after 30 minutes if no
command or function is activated.
To switch the display lighting on and off.
Note: switches off automatically after 1 minute.
...
—
/~ and Ω/

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% %
% %
% FUNCTION SWITCH
OFF The off position
V~ Alternating voltage up to 600 V
V Direct and alternating voltage up to 600 V
Hz Voltage frequency, up to 500 kHz
ΩΩ
ΩΩ
ΩAudible continuity test for R ≤40 Ω, resistance and resistance
measurements up to 40 MΩ
Diode test. Junction voltage. RANGE is displayed
Capacities up to 40 µF
mA Current up to 400 mA
...
and ~ (on + terminal)
10 A 10A
...
and~ current (on 10 Aterminal).RANGE is displayed.
& &
& &
& Ø 4 mm SAFETY TERMINALS
!!
!!
!COM : common, terminal for black-lead
!!
!!
!+ : terminal for red-lead
!!
!!
!10 A : terminal for red-lead 10 A
...
and ~ measurements
3 - DC AND AC VOLTAGE
!!
!!
!Plug the leads into the multimeter and connect up in parallel to the
circuit to be tested.
!!
!!
!Put the switch in the voltmeter V~ or V position
!!
!!
!Automatic measurement selection: read off the value measured
!!
!!
!Save the value, if necessary, by pressing on the HOLD button.
If necessary, press on the following buttons:
!!
!!
!RANGE to select the measurement manually
!!
!!
!MIN-MAX to read off minimum, maximum or PEAK values
!!
!!
!To light up the display.
Vand ~(1) 400 mV 4 V 40 V 400 V 600 V (2)
Digital 10 µV 100 µV 1 mV 10 mV 100 mV
resolution
Bargraph 1 mV 10 mV 100 mV 1 V 10 V
resolution
Impedance 3 MΩ2.3 MΩ
Accuracy ±0.15 % R ± 0.1% rdg ± 3 count
in DC ± 10 counts
Accuracy ±1.2% R ± 1.5% rdg ± 20 counts
in AC ± 20 counts
Accuracy (2) ± 1.5 % R ± 2 % reading ± 20 counts
AC + DC ± 10 counts
Permitted
overload 600V eff. and 900V peak
(1)Peak factorFc ≤ 3(full scale),Peak factorFc ≤ 6(mid-scale).
40Hzfrequencyat1kHz,exceptfor400mV~,measurementfrom40to60Hz.Rejectionratio:
in common mode up to1000V
...
>110dBand in series mode> 55dB (50and60Hz).
(2)Notaccessible

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4 - FREQUENCY
!!
!!
!Plug the leads into the multimeter and connect in parallel to the
circuit to be tested.
!!
!!
!Put the switch in the Hz voltage frequency position
!!
!!
!Automatic measurement selection: read off the value measured
Note:the bargraph is inhibited when measuring frequency
!!
!!
!If necessary, press on the following buttons :
- MIN-MAX to read min. and max. values
- to light up the display
Hz 100 Hz 1 kHz 10 kHz 100 kHz (2) 400 kHz
Resolution 0.01 Hz 0.1 Hz 1 Hz 10 Hz 100 Hz
Accuracy ± 0.1% reading
± 10 counts ± 4 counts ± 10 counts
Permitted 500 V rms and 750 V peak
overload
Operating (1) at 500 V
range (1)
(1) Trigger threshold :
> 500 mV from 1 Hz to 100 kHz
> 1.5 V from 100 kHz to 500 kHz
5 - CONTINUITY AND RESISTANCE
Never test a resistance on a live circuit
!!
!!
!Plug the leads into the multimeter and connect to the terminals of
the circuit or component to be tested.
!!
!!
!Put the switch in the ohmmeter ΩΩ
ΩΩ
Ωposition
Press on the ΩΩ
ΩΩ
Ω/ button to switch from the audible continuity
test to the measurement of resistance and vice versa.
!!
!!
!Automatic measurement selection: read off the value measured
!!
!!
!To save the measurement, if required, press on the HOLD button.
If necessary, press on the following buttons :
!!
!!
!RANGE to select the measurement manually
!!
!!
!MIN-MAX to read min. and max. values
!!
!!
!to light the display

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5-1 Resistances
ΩΩ
ΩΩ
Ω400 Ω4 kΩ40 kΩ400 kΩ4 MΩ40 MΩ
Digital
resolution 0.1 Ω1 Ω10 Ω100 Ω1 kΩ10 kΩ
Bargraph 10 Ω100 Ω1 kΩ10 kΩ100 kΩ1 MΩ
resolution
Accuracy
±0.3% rdg
± 0.2% rdg ± 3 cts
± 0.2 % rdg ± 1 % rdg
± 10 cts ± 6 cts ± 10 cts
Voltagewhen < 1.2 V < 2.5 V ...
circuit is live
Protection 500 V rms and 750 V peak
5-2 Audible continuity test
On the 400 Ω, measurement, a continuous beep is emitted for a
resistance R < 40 Ω. Response time : 100 m. secs.
Protection : same as resistances
6 - DIODE TEST
Never test a diode on a live circuit.
!!
!!
!Plug the leads into the multimeter and connect to the terminals of
the component to be tested.
!!
!!
!Put the switch in the function :
- in the direct direction, the display gives the value of the junction
in volts (1 mV resolution)
- accuracy : ± 1 % L ± 10 ct
- live circuit voltage : < 3 V...
- short circuit current : 0.8 mA
- in the reverse direction, the display indicates the voltage of the
live circuit, in the region of 4 V.
!!
!!
!Save the value, if necessary by pressing on the HOLD button
!!
!!
!With this function, apart from testing classic diodes, it is also
possible to test electroluminescent diodes (LED’s or any other
semi-conductor whose junction corresponds to a direct voltage of
less than 3 V).
!!
!!
!Protection : same as resistances

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7 - CAPACITANCE
Never measure capacity on a live circuit.
Always respect the polarity of the electrolytic condensers.
This type of condenser may be temperature-sensitive;
do not touch it, therefore, during measurement.
!!
!!
!Plug the leads into the multimeter and connect to the condenser
terminals.
!!
!!
!Put the switch in the capacitance meter position
!!
!!
!Automatic measurement selection: read off the value measured
Note:Thebargraph is inhibited during capacitance measurement
!!
!!
!To save the measurement, if required, press on the HOLD button.
If necessary, press on the following buttons :
!!
!!
!RANGE to select the measurement manually
!!
!!
!MIN-MAX to read min. and max. values
!!
!!
!to light the display
4 nF 40 nF 400 nF 4 µF 40 µF (1)
Resolution 1 pF 10 pF 100 pF 1 nF 10 nF
Accuracy ± 3 % rdg ± 20 ct ± 1.5% rdg ± 5 cts ± 2 % R
± 5 ct
Protection 500 V rms and 750 V peak
(1) For a capacitance C > 20 µF, the accuracy is ±3.5% rdg ± 10 counts
8 - DC AND AC CURRENT
Always disconnect the circuit to be tested before connecting
the multimeter to the circuit.
!!
!!
!Becareful:plugtheleadsintothe multimeterand connect in series
to the circuit :
- the red lead on the “+” Terminal, up to 400 mA
- the red lead on the “10 A” terminal, from 400 mA to 10 A
!!
!!
!Put the switch in the ammeter A or mA position
Press on the
...
/~ button to select d.c. or a.c.
!!
!!
!Reconnect the circuit to be tested to the power
!!
!!
!Automatic measurement selection : read off the value measured
!!
!!
!If necessary, press on the following buttons :
- RANGE to select the measurement manually
- MIN-MAX to read min. and max. values
- to light the display

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A
...
and ~ 40 mA 400 mA 10 A
Voltage 200 mV 1 V 400 mV
drop (1)
Digital 1 µA 10 µA 1 mA
resolution
Bargraph 0.1 mA 1 mA 100 m A
resolution
Accuracy ± 0.5% rdg ± 5 counts ± 1.5% rdg
in DC ± 10 counts
Accuracy (2) ± 0.9% rdg ± 10 counts ± 1.5% rdg
in AC ± 5 counts
Protection (3) Fuse 0.5 A HBC Fuse 12 A HBC
(1) Voltage drop at terminals for40mA,400 mA,10 A
Peak factorFC ≤ 3(full scale)and FC ≤ 6(mid-scale)
(2) Usefor40Hz to 1000 Hzfrequencies
(3) Admissibleoverloads: 12Afor30secondsfor10Ameasurements
600mAfor30secondsfor400mAmeasurements
9 - GENERAL SPECIFICATIONS
9-1 Dimensions and weight
!2.5 x 7 x 1.7 " (64 x 177 x 42 mm) !12.3 ounces (350 g)
9-2 Power supply
!One battery 9 V
!Autonomy : 200 hrs with type 6 F22 battery
400 hrs with alkaline type 6 LF 22 battery
!Indication of battery wear :
+
-
!Automatic cut-out after 30 minutes
Note : Restart from the OFF position
9.3 Buzzer
!Continuous audible beep for the continuity test
!Intermittent audible beep each time the switch and buttons are
activated and to indicate overruns.
9-4 Climatic conditions
!Temperature : use : 0°C to +50°C / storage : -20°C to +60°C
!Relative humidity : use : ≤70% RH
storage : ≤80% RH
!Altitude : use < 2000 m
9-5 Conformity with international standards
9-5-1 Electrical safety (as per IEC 1010-1)
!Double insulation : !Installation category : III
!Degree of pollution : 2 !Assigned voltage : 600 V RMS
Note :This overload categoryIII multimeter conforms to the strict
reliabilityandavailability requirements correspondingtofixedindustrial
and domestic installations (IEC 664-1).

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9-5-2 Electromagnetic compatibility: conforms to CE
!Emission (EN 50081-1) !Immunity (EN 50082-1)
9-5-3 Mechanical protection
!Degree of watertightness (IEC 529) : protection index IP 40
10 - TO ORDER
Use designations and references below
C.A 5240.......................................................................Cat# 2116.77
Sold with shockproof case, a pair of leads with probes attached,
a 9 V battery and this user’s manual
Accessories
!AC current probe model MN 251 (200 A AC) ...........Cat# 2115.77
!AC current probe model MD 303 (500 A AC) ...........Cat# 1201.21
!AC current probe model SR 652 (1000 A AC) ..........Cat# 2113.46
!AC/DC MicroProbe model K110
(from 100 µA AC/DC to 300 mA AC/ 450 mA DC).......Cat# 2111.73
!AC/DC current probe model MR410
(400 A AC/600 A DC) ...................................................Cat# 1200.70
!AmpFLEX model 1000-24-1-1 (1000 A AC) .............Cat# 2112.39
!Replacement leads ...................................................Cat# 2118.66
!Soft carrying case .....................................................Cat# 2118.65
!Replacement shockproof case..................................Cat# 2980.15
!Fuse set of 10, 0.5 A .................................................Cat# 2970.28
!Fuse set of 10, 12 A ..................................................Cat# 2970.21
11 - WARRANTY
Our guarantee is applicable for three years after the date on which
the equipment is made available (copy available on request).
12 - MAINTENANCE
For maintenance, use only specified spare parts.
The manufacturer will not be held responsible for any
accident occurring following a repair done other than by its
After Sales Service or approved repairers.
12-1 Replacement of battery and fuses
The multimeter must be disconnected from any electrical
source.
!Put the switch in the OFF position
!Unscrewthe captivescrews and removethelowerhalfof the casing
!Replace the worn battery with a 9 V battery (6F22 or 6LF22)