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Summary of Contents for Tenma 72-9405
- Page 1 2500V Digital Insulation Resistance Tester Model: 72-9405...
- Page 2 SAFETY INSTRUCTIONS: This meter complies with IEC61010 safety measurement requirement. Pollution degree 2, CAT III 600V. Please read the following safety information carefully before using or servicing this instrument. • Do not apply more than 600V to the instrument • Do not use the instrument around explosive gas, vapour, or •...
- Page 3 • Take the battery out from the meter if it is not used for a long time • Do not use or store meter in high temperature, humid, inflammable, and strong magnetic field environments • Soft cloth and mild detergent should be used to clean the surface of the meter when servicing.
- Page 4 MEASUREMENT OPERATIONS This section explains how to make measurements. • Press and hold ON/OFF to turn on, and press it again to turn off the meter. • After turning on the meter, it defaults at 500V range and continuous measurement of insulation resistance. Measuring Voltage To measure voltage, set up the meter as in Figure 4 and perform the steps below,...
- Page 5 Measuring Insulation Resistance To measure insulation resistance, set up the meter as Figure 5 and perform the steps below. • Press IR button to select insulation resistance measurement. • When there is no testing voltage output, press to select 500V, 1000V, 2500V or 5000V range.
- Page 6 Timed Measurement • Press TIME button to select the timed mode, the LCD displays TIME 1 and symbol. • Press buttons to set the time (00:10~15:00). Within 1 minute, the time increment or decrement by every 5s. Afterward, the time increment or decrement by every 30s.
- Page 7 Compare Function • Press COMP button to select compare feature. COMP displays on the LCD. • Press buttons to set the compare value. • You can choose the compare value from 10MΩ, 20MΩ, 30MΩ, 40MΩ, 50MΩ, 60MΩ, 70MΩ, 80MΩ, 90MΩ, 100MΩ, 200MΩ, 300MΩ, 400MΩ, 500MΩ, 600MΩ, 700MΩ, 800MΩ, 900MΩ, 1GΩ, 2GΩ, 3GΩ, 4GΩ, 5GΩ, 6GΩ, 7GΩ, 8GΩ, 9GΩ, 10GΩ, 20GΩ, 330GΩ, 40GΩ, 50GΩ, 60GΩ, 70GΩ, 80GΩ, 90GΩ, 100GΩ.
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