Velleman DVM850BL Instrucciones de operaciones Pagina 6
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Valorado. / 5. Basado en revisión del cliente
DVM850BL GB
6
5.5. RESISTANCE
Range Resolution Accuracy
200Ω 0.1Ω ±0.8% of rdg ± 2 digits
2kΩ 1Ω ±0.8% of rdg ± 2 digits
20kΩ 10Ω ±0.8% of rdg ± 2 digits
200kΩ 100Ω ±0.8% of rdg ± 2 digits
2MΩ 1kΩ ±1.0% of rdg ± 2 digits
Maximum open circuit voltage : 3.2V
Overload protection : 250Vdc or rms ac for all ranges.
5.6. TRANSISTOR hFE TEST (0-1000)
Range Tested range Tested current Tested voltage
NPN & PNP 0-1000 Ib = 10µA Vcd = 3V
6. OPERATING INSTRUCTIONS
6.1. DC VOLTAGE MEASUREMENT
1. Connect the red test lead to the "VΩmA" jack and the black lead to the "COM" jack.
2. Set the rotary switch in the desired DCV position. If the voltage to be measured is unknown
beforehand, you should set the range switch in the highest range position and then reduce
gradually until the ideal resolution is obtained.
3. Connect the test leads to the source being measured.
4. Read the voltage value on the LCD display along with the polarity of the red lead
connection.
6.2. DC CURRENT MEASUREMENT
1. Connect the red test lead to the "VΩmA" jack and the black test lead to the "COM" jack
(switch the red lead to the "10A" jack for measurements between 200mA and 10A).
2. Set the rotary switch (DCA) in the desired position.
3. Open the circuit in which the current is to be measured and connect the test leads to the
circuit IN SERIES.
4. Read the current value and the polarity of the red lead connection on the LCD display
- 1. SAFETY 1
- 1.1. SAFETY INFORMATION 1
- 1.2. SAFETY SYMBOLS 1
- 2. MAINTENANCE 2
- 3. DURING USE 2
- 4. GENERAL DESCRIPTION 2
- 4.1. FRONT PANEL 3
- 4.2. FRONT PANEL DESCRIPTION 4
- 5. SPECIFICATIONS 4
- 5.1. DC VOLTAGE 5
- 5.2. DC CURRENT 5
- 5.3. AC VOLTAGE 5
- 5.4. DIODE & CONTINUITY 5
- 5.5. RESISTANCE 6
- 6. OPERATING INSTRUCTIONS 6
- 6.1. DC VOLTAGE MEASUREMENT 6
- 6.2. DC CURRENT MEASUREMENT 6
- 6.3. AC VOLTAGE MEASUREMENT 7
- 6.4. RESISTANCE 7
- 6.5. DIODE TEST 7
- 6.6. TRANSISTOR TEST 7
- 6.7. AUDIBLE CONTINUITY TEST 8
- 8. WARNING 8
- 9. ACCESSORIES 8
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