ELCART
ELCART DISTRIBUTION SPA via Michelangelo Buonarroti, 46 - 20093 Cologno Monzese (Milano) ITALY
Tel. +39 02.25117310 Fax +39 02.25117610 sito internet: www.elcart.com e-mail: [email protected]
Manuale di istruzioni/Scheda tecnica
La divulgazione dei dati contenuti in questa scheda è da ritenersi un servizio puramente informativo e non costituisce alcun vincolo da parte della Elcart in merito a prestazioni ed utilizzo del prodotto.
The divulgation of data contained on this technical sheet are exclusively for informational reasons and establish no link on behalf of Elcart regard to thr performances and the usa of the product.
La divulgacion de los datos contenidos en esta ficha son un servicio unicamente informativo y no constituyen ningun vinculo de parte de Elcart respecto a las prestaciones y uso del producto.
ART. 9/7800
PAGINA 4 DI 4
Information for users:
The symbol on the equipment indicates that the waste must be “separately collected”. Therefore,
the user must carry (or have it carried) the waste to the separately collected waste centers set
up by local governments, or deliver it to the dealer against purchase of a new equivalent-
type equipment. The separate waste collection and the subsequent processing, recovery and
disposal operations favour the production of equipment with recycled materials and limit the
negative effects on the environment and on health which may be possibly caused by the waste
improper management. The improper product disposal by the user causes the application
of administrative sanctions according to the Art. 50 et. seq. of the Law Decree No. 22/1997.
7. OPERATING INSTRUCTIONS
7-1 Attention before operation
7-1-1 Check 7V battery. If the battery voltage is less than 7V, display will
show “ ”, the battery should be replaced at this time to ensure measuring
precision.
7-1-2 Pay attention to the “ ” besides the input jack which shows that the
input voltage or current should be within the specified value.
7-1-3 The range switch should be positioned to desired range for
measurement before operation.
7-2 Measuring DC Voltage
7-2-1 Connect the black test lead to COM jack and the red to V mA jack.
7-2-2 Set the rotary switch at the desired V
range position.
7-2-3 Connect test leads across the source or load under measurement.
7-2-4 You can get reading from LCD. The polarity of the red lead connection
will be indicated along with the voltage value.
NOTE:
1. When the value scale to be measured is unknown beforehand, set the
range selector at the highest position.
2.
When only the figure’1’ or ‘-1’ is displayed, it indicates over-range
situation and the higher range has to be selected.
3.
“ ” means you can’t input the voltage more than 600V, it’s possible
to show higher voltage, but it may destroy the inner circuit or pose a shock.
4. Be cautious against shock when measuring high Voltage.
7-3 Measuring AC Voltage
7-3-1 Connect the black test lead to COM jack and the red to V mA jack.
7-3-2 Set the rotary switch at the desired V~
range position.
7-3-3 Connect test leads across the source or load under measurement.
7-3-4 You can get reading from LCD.
NOTE:
1. When the value scale to be measured is unknown beforehand, set the
range selector at the highest position.
2.
When only the figure’1’ or ‘-1’ is displayed, it indicates over-range
situation and the higher range has to be selected.
3.
“ ” means you can’t input the voltage more than 600V, it’s possible
to show higher voltage, but it may destroy the inner circuit or pose a shock.
4. Be cautious against shock when measuring high Voltage.
7-4 Measuring DC Current
7-4-1 Connect the black test lead to COM jack and the red to the V mA
jack for a maximum 200mA current , for a maximum 10A current, move the
red lead to the 10A jack.
7-4-2 Set the rotary switch at the desired A
range position.
7-4-3 Connect test leads in series with the load under measurement.
7-4-4 You can get reading from LCD. The polarity of the red lead connection
will be indicated along with the current value.
NOTE:
1.
When the value scale to be measured is unknown beforehand, set the
range selector at the highest position.
2. When only the figure’1’ or ‘-1’ is displayed, it indicates over-range
situation and the higher range has to be selected.
3.
“ ” means the socket mA’s maximum current is 200mA and 10A’s
maximum current is 10A, over current will destroy the fuse. Since 10A is
not fused, the measuring time should be less than 1 second to prevent
precision from affecting by circuit heating.
7-5 Measuring Resistance
7-5-1 Connect the black test lead to COM jack and the red to V mA jack.
7-5-2 Set the rotary switch at the desired
Ω
range position.
7-5-3 Connect test leads across the resistance under measurement.
7-5-4 You can get reading from LCD.
NOTE:
1.
When only the figure’1’ or ‘-1’ is displayed, it indicates over-range
situation and the higher range has to be selected.
2.
For measuring resistance above 1M
Ω
, the mete may take a few
seconds to get stable reading.
3.
When the input is not connected, i.e. at open circuit, the figure ‘1’ will
be displayed for the over-range condition.
4.
When checking in-circuit resistance, be sure the circuit under test has
all power removed and that all capacitors have been discharged fully.
5.
the value scale to be measured is unknown beforehand, set the range
selector at the highest position.
7-6 Transistor Testing
7-6-1 Set the rotary switch at ’hFE’ position.
7-6-2 Determine whether the transistor under testing is NPN or PNP and
locate the emitter, base and collector leads. Insert the leads into proper
holes of hFE socket on the front panel.
7-6-3 Read the approximate hFE value at the testing condition of base
current Ib10uA and Vce 3V.
7-7 Diode Testing
7-7-1 Connect the black test lead to COM jack and the red to V mA jack.
(the polarity of red lead is ‘+’)
7-7-2 Set the rotary switch at the F range position.
7-7-3 Connect the red lead to the anode and the black lead to the cathode of
the diode under testing.
7-7-4 You can get a reading from LCD.
NOTE:
1. The meter will show approximate forward voltage drop of the diode.
2. If the lead connections is reversed, only ‘1’ will be displayed.
7-8 Continuity Testing
7-8-1 Connect the black test lead to COM jack and the red to V
Ω
mA jack.
7-8-2 Set the rotary switch at the range position.
7-8-3 Connect test leads across two points of the circuit under testing.
7-8-4 If continuity exists (i.e. resistance less than about 50 ), built-in
buzzer will sound.
NOTE:
If the input open circuit, the figure ‘1’ will be displayed.
8. Maintenance
8-1 Before attempting to remove the battery door or open the case, be sure
that test leads have been disconnected from measurement circuit top avoid
electric shock hazard.
8-2 To avoid electrical shock, remove test leads from measurement circuits
before replacing the fuse. For protection against fire, replace fuses only with
specified ratings: F-200mA/250V fuse.
8-3 Your must replace the test leads if the lead is exposed, and should adopt
the leads with the same specifications as origin.
8-4 Use only moist fabric or small amount of detergent but not chemical
solution for cleaning.
8-5 do not use the meter before the back cover is properly closed and screw
secured. Upon any abnormality, stop operation immediately and send the
meter for maintenance.
8-6 Please take out the battery when not using for a long time.
9. Accessories
[1] Test Leads: electric rating 1000V 10A
[2] Battery: 9V, 6F22 or NEDA 1604
[3] Fuse: F-200mA/250V
[4] Operator’s Manual
[5] Holster
