Velleman DVM870 Manual do Utilizador descarregar pdf (Página 10)

DVM870 Rev. 01

04.02.2010 ©Velleman nv

10

11. Troubleshooting

No display

check whether power is on

replace battery

check fuse

appears

replace battery

OL appears

select appropriate range

make sure measured value is within limits

impossible value replace battery

12. Technical specifications

DC voltage 0.2/2/20/200/600V

basic accuracy

±(0.5% of rdg + 4 digits)

±(1.0% of rdg + 4 digits) for 600V range

input impedance > 10M

maximum input 600V

AC voltage 0.2/2/20/200/600V

basic accuracy

±(0.8% of rdg + 6 digits)

±(1.5% of rdg + 20 digits) for 0.2V range

input impedance > 10M

frequency range 50-200Hz

maximum input 600V

DC current

200µ/2m/20m/200m/10A

(max. line voltage 230V)

basic accuracy

±(1.0% of rdg + 10 digits)

±(1.2% of rdg + 10 digits) for 10A range

overload protection 0.2A (10A for 10A range)

AC current

200µ/2m/20m/200m/10A

(max. line voltage 230V)

basic accuracy

±(1.5% of rdg +10 digits)

±(2.5% of rdg + 15 digits) for 10A range

overload protection 0.2A (10A for 10A range)

resistance 200/2k/20k/200k/2M/20M

basic accuracy

±(0.8% of rdg + 5 digits) for 200ohm range

±(0.8% of rdg + 4 digits) for 2K~2Mohm range

±(1.2% of rdg + 10 digits) for 20Mohm range

overload protection 250V

temperature -55°C to 1000°C

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