Velleman EVM892 - Manual (Page 9)

EVM892
29.04.2010 ©Velleman nv 9
Limits of the meter:
FUNCTION RED LEAD
CONNECTION
INPUT LIMITS
200mV VΩHz 250V DC or rms AC
V & V ∼ VΩHz 600V DC, 600V AC (sine wave)
Hz VΩHz 250V DC or rms AC
Ω VΩHz 250V DC or rms AC
/ VΩHz 250V DC or rms AC
mA & mA mA/temp/CAP/hFe 200mA DC or rms AC
10 & 10A 10A 10A DC or rms AC
for max. 10 seconds
Measuring voltages
• Connect the black test lead to the "COM" jack and the red test lead to the
"VΩHz" jack.
• Select the appropriate V (DC voltage)or V (AC voltage) range with the
FUNCTION switch. When the range is unknown, always select the highest
possible range and lower to the appropriate range.
• Connect the test probes to the circuit under test.
• The measured value appears on the display.
Notes:
• For DC-measurements: when a negative polarity is present at the red test
lead, the indicated value is preceded by a “-” sign.
• When the measured value is higher than the selected range limit, the display
will show “1”. Select a higher range.
Measuring currents
Do not measure current in circuits with voltages > 250V
Current measurements: mA/TEMP/CAP/hFE jack max. 200mA; for
measurements up to 10A use the 10A jack. When measuring currents up
to 10A, max. 10s continuous measurement followed by a 15 minutes break
between 2 measurements.
Always be careful when working with voltages above 60Vdc or 30Vac rms.
Keep your fingers behind the probe barriers at all times during
measurement.
• Connect the black test lead to the "COM" jack and the red test lead to the
"mA/TEMP/CAP/hFE" jack for measurements of max. 200mA or to "10A" jack for
measurements of max. 10A.
• Select the appropriate A (DC) or A (AC) range with the FUNCTION switch.
Select the 200m/20m10 range when the red test lead is connected to the
"mA/TEMP/CAP/hFE" jack; select the 20m10 range when the red test lead is
connected to the "10A" jack. When the range is unknown, always select the
highest possible range and lower to the appropriate range.
• Connect the test probes in series with the circuit.
• Read the measured value from the display.
Notes: