Philips PM2521 Operating Manual page 5

4
Page
4. PRINCIPLE OF OPERATION 29
4.1. Analog section.29
4.1.1. Measuring voltages, currents, resistances and diodes.29
4.1.2. Measuring time and frequency.29
4.1.3. Measuring temperatures.29
4.1.4. ** dB measurements.29
4.1.5. Measurements in relative reference mode.29
1 4.1.6. Control of the analog section .29
4.1.7. ADC .29
4.2. Control section .30
4.3. Display section.30
5. INSTALLATION 31
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5.1. Mains-supply.31
5.1.1. Safety instructions.31
5.1.2. Replacing the mains fuse .31
5.1.3. Adaption to the mains voltage.31
5.1.4. Adaption to the mains frequency ....-•.31
6. OPERATION ' 32
6.1. Switching-on.32
6.2. Controls.32
6.2.1. Front panel.32
6.2.2. Rear panel.34
6.3. Zero setting.
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.34
6.4. Measuring.35
6.4.1. Standard measurements.35
6.4.1.1. Direct voltage measurements (V— ) .35
6.4.1.2. Alternating voltage measurements (V~ rms) .36
6.4.1.3. Decibel measurements (dB) .37
6.4.1.4. Direct current measurements (A.-r-O.38
t
6.4.1.5. Alternating current measurements (A ~ rms) .39
6.4.1.6. Resistance measurements (£7 ).40
6.4.1.7. Diode measurements ( )..41
6.4.1.8. Temperature measurements (°C).42
6.4.1.9. Frequency measurements (Hz) .43
6.4.1.10. Time measurements (s) .45
6.4.1.11 .Peak voltage measurements.48
6.4.2. Extended capabilities (optional) .50
6.4.2.1. High tension measurements .50
6.4.2.2. High current measurements (Arrr and A ~ rms) .".51
6.4.2.3. Data Hold measurements.52
6.4.2.4. High frequency measurements.53