Velleman DVM345DI Скачать руководство пользователя страница 2

DVM345DI                                                                                                                                                                GB 

DVM345DI -- DIGITAL MULTIMETER 

 

1. INTRODUCTION 

 
Thank you for buying the DVM345DI. This device enables the user to measure AC and DC 
voltages, AC and DC currents, resistance, capacitance and temperature. The device can be 
interfaced with a computer and the user can also test diodes, transistors and audible continuity. 
 

2. SAFETY 

 
The meter has been designed according to IEC-1010 concerning the safety requirements for 
electronic measuring instruments with an overvoltage category (CAT II) and pollution 2. 
Respect the following safety instructions to ensure maximum personal safety and to keep the 
device itself in good working order : 
 

• 

Protect yourself against electroshocks. 

• 

Do not use this device for any other application than those described in this manual. 

• 

Full compliance with safety standards can only be guaranteed if the device is used with the 
supplied test leads. If necessary, they should be replaced with identical leads or leads with 
identical electric ratings. All test leads should be in good working order. 

 
2.1. Use 
 

• 

Never exceed the specified limit values for the various measurement ranges. 

• 

Do not touch unused terminals when the meter is connected to a circuit. 

• 

Place the range selector switch in the highest position if the value to be measured is 
unknown beforehand. 

• 

Disconnect all test leads from the circuit to be tested prior to selecting a different function. 

• 

When performing measurements on TV’s or switching power circuits, the user should keep in 
mind that voltage surges may occur at test points. These surges may damage the meter. 

• 

Never perform resistance measurements on live circuits. 

• 

Exercise extreme caution when working with voltages in excess of 60VDC or 30Vrms AC. 
Keep your fingers behind the probe barriers while using the device. 

 
2.2. Symbols 
 
 
 
 
 

Important information with reference to safety, consult the manual ! 

Dangerous voltage may be present 

Earth ground 

Double insulation (Protection class II) 

Содержание DVM345DI

Страница 1: ...DVM345DI DIGITAL MULTIMETER DIGITALE MULTIMETER MULTIMETRE NUMERIQUE DIGITALES MULTIMETER User Manual Gebruikershandleiding Manuel d utilisation Gebrauchsanleitung ...

Страница 2: ...ed test leads If necessary they should be replaced with identical leads or leads with identical electric ratings All test leads should be in good working order 2 1 Use Never exceed the specified limit values for the various measurement ranges Do not touch unused terminals when the meter is connected to a circuit Place the range selector switch in the highest position if the value to be measured is...

Страница 3: ...audible continuity 3 1 ON OFF push button Used to turn the device ON or OFF The beeper sounds when this button is pushed 3 2 DC AC RU button 8VHG WR VHOHFW RU YROWDJH UDQJH RU FXUUHQW UDQJH RU range The beeper sounds when this button is pushed 3 3 R H button Press this button to switch to manual operation when the device is in the auto ranging mode R H will be displayed Hold the button for more th...

Страница 4: ...h R H for manual range selection 4 The measured value will be displayed on the LCD The polarity of the red test lead is indicated with DC measurements 4 2 Current Measurements 1 Connect the black test lead to the COM jack and the red test lead to the mA jack for measurements up to 400mA Switch the red test lead to the 10A jack for measurements up to 10A 2 Place the function switch in the 4mA 400mA...

Страница 5: ...ket WARNING Disconnect all test leads from the circuit to be tested before inserting the capacitor in the capacitance socket Make sure that no components are connected to this socket when performing voltage measurements with test leads 4 5 Temperature Measurements 1 Place the function switch in the TEMP position 2 Connect the K type thermocouple with the temperature socket on the front panel and c...

Страница 6: ... hFE socket Make sure that no components are connected to the hFE socket when performing voltage measurements with test leads 4 9 Interfacing the Meter with a PC 1 Run the RS232C cable from the computer s serial ports to the meter 2 Press ON OFF to activate the meter and turn on the computer WARNING 1 Only use a RS232C serial interface cable Do not attempt to modify the length of this cable 2 Plea...

Страница 7: ...n in rms of a sine wave Frequency range 40Hz 400Hz 5 4 Resistance Range Resolution Accuracy 400 0 1 4k 1 40k 10 400k 0 1k 4M 1k 1 2 of rdg 3 digits 40M 10k 3 0 of rdg 5 digits Max open circuit voltage 3 0V Overload protection 250VDC or 250Vrms AC for all ranges 5 5 DC Current Range Resolution Accuracy 4mA 1µA 1 2 of rdg 3 digits 400mA 0 1mA 1 2 of rdg 3 digits 10A 10mA 2 0 of rdg 8 digits Overload...

Страница 8: ...y 0 to 400 C 1 C 3 0 of rdg 3 digits 401 to 750 C 1 C 3 0 of rdg 5 digits 5 9 Audible Continuity Function Description Built in buzzer sounds if continuity exists 30Ω 5 10 Diode Function Resolution Test Current Open Circuit Voltage 1mV 25µA 3 0V 5 11 Transistor Function Range Base Current Vce hFE 1 to 1000 10µA 3 0V 6 ACCESSORIES User manual Set of test leads 9V battery NEDA1604 or 6F22 K type ther...

Отзывы: