1. DL manuals
  2. Velleman
  3. Multimeter
  4. DVM990BL
  5. Operating Manual

Velleman DVM990BL Operating Manual

Summary of DVM990BL

  • Page 1

    Dvm990bl digital multimeter multimetre digital operating manual manuel d’utilisation digitale multimeter digitales multimeter bedieningshandleiding bedienungsanleitung multÍmetro dÍgital manual del usuario.

  • Page 2: Safety Information

    Dvm990bl velleman 1 1. Safety information warning to ensure safe operation, and in order to exploit to the full functionality of the meter, please follow the directions in this section carefully. This multimeter has been designed according to iec-1010 for electronic measuring instruments, with an ov...

  • Page 3: 1.3. Symbols

    Dvm990bl velleman 2 1.2.6. Before rotating the range selector to change functions, disconnect the test leads from the circuit under test. 1.2.7. Never connect the meter leads across a voltage source while the function switch is in the current, resistance, diode or continuity mode. Doing so can damag...

  • Page 4: 2. Description

    Dvm990bl velleman 3 2. Description 2.1. Names of components (1) lcd display (2) power switch (power) (3) black light switch ( ) (4) data hold switch (h) (5) rotary switch (6) input socket (7) case (8) battery door (9) brace (10) screw.

  • Page 5: 3. Specifications

    Dvm990bl velleman 4 2.2. Function and range selector - this meter is a portable professional measuring instrument with a large lcd and back light for easy reading. - this meter has built-in protection to prevent the test leads being connected incorrectly. The input socket for the red test lead sense...

  • Page 6: 3.2. Electrical

    Dvm990bl velleman 5 3.2. Electrical specifications ambient temperature: 23 ± 5°c relative humidity: 3.2.1. Dc voltage range resolution accuracy (% reading + digits) 200mv 0.1mv ± (0.5% of rdg + 1 digit) 2v 1mv ± (0.5% of rdg + 3 digits) 20v 10mv ± (0.5% of rdg + 3 digits) 200v 100mv ± (0.5% of rdg +...

  • Page 7: 3.2.3.  Dc Current

    Dvm990bl velleman 6 3.2.3. Dc current range resolution accuracy (% reading + digits) 2ma 1µa ± (1.0% of rdg + 3 digits) 20ma 10µa ± (1.0% of rdg + 3 digits) 200ma 100µa ± (1.5% of rdg + 5 digits) 10a 10ma ± (2.0% of rdg + 10 digits) overload protection: 2ma to 200ma ranges: f1: f 200ma/250v fuse 10a...

  • Page 8: 3.2.6. Capacitance

    Dvm990bl velleman 7 note: with the 200 mohm range, if the input is short circuited, the display will read 1mohm. This 1mohm should be subtracted from the measured results. 3.2.6. Capacitance range resolution accuracy (% reading + digits) 2nf 1pf ± (4.0% of rdg + 3 digits) 20nf 10pf ± (4.0% of rdg + ...

  • Page 9: 3.2.10. Temperature

    Dvm990bl velleman 8 3.2.10. Temperature range resolutio n accuracy (% reading + digits) -20°c to 1000°c 1°c -20°c to 0°c 0°c to 400°c 400°c to 1000°c ± (5.0% of rdg + 5 digits) ± (1.0% of rdg + 3 digits) ± (2.0% of rdg + 3 digits) overload protection: 250v dc or rms ac 4. Operating instructions 4.1....

  • Page 10: 4.4. Measuring

    Dvm990bl velleman 9 4.4. Measuring voltage 4.4.1. Connect the black test lead to the com socket and the red test lead to the v/ Ω socket. 4.4.2. Set the rotary switch to the desired v or v range. 4.4.3. Connect the test leads across the source or load under test. 4.4.4. You can see the reading on th...

  • Page 11: 4.6. Measuring

    Dvm990bl velleman 10 4.6. Measuring resistance 4.6.1. Connect the black test lead to the com socket and the red test lead to the v/ Ω socket. 4.6.2. Set the rotary switch to the desired Ω range. 4.6.3. Connect the test leads across the resistance under measurement. 4.6.4. You can see the reading on ...

  • Page 12: Note:

    Dvm990bl velleman 11 note: 1. At the low capacitor range, the reading will include the small residual value of the test leads. It will not influence the accuracy of the measurement. 2. It takes time for the reading to become steady when measuring a high capacitance. 4.8. Measuring temperature 4.8.1....

  • Page 13: Note:

    Dvm990bl velleman 12 note: 1. The meter will show the approximate forward voltage drop of the diode. 2. If the lead connection is reversed, only the figure "1" will be displayed. 4.11. Continuity test 4.11.1. Connect the black test lead to the com socket and the red test lead to the v/ Ω socket. 4.1...

  • Page 14: 5.2. Fuse

    Dvm990bl velleman 13 5.2. Fuse replacement warning to avoid electric shock, remove the test leads from the circuit under test before replacing the fuse. For continued protection, only replace fuses with specified ratings: f1: f 200ma/250v f2: f 10a/250v. 5.2.1. Fuses rarely need replacing and almost...

  • Page 15

    Dvm990bl velleman 14 6. Accessories 6.1. Supplied with the multimeter • test leads • 9v battery type 6f22 or neda 1604 • fuse: f1 200ma/250v (Ø5 x 20mm) • fuse: f2 10a/250v (Ø5 x 20mm) • k-type thermocouple • operating manual 6.2 optional accessories • capacitance test socket • holster.