MODEL 120 TRUE RMS MULTIMETER | NOTES |
1.0Introduction:
This instrument is a true RMS autoranging digital multimeter capable of measuring AC voltage and current, DC voltage and current, resistance, continuity, frequency, RPM, temperature and capacitance. It is also equipped with a diode testing feature. The instrument complies with IEC
2.0Specifications:
AC Voltage (Autoranging):
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| Input | Overload Protection | ||||
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| Impedance | ||||
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| 45Hz~500Hz |
| 500Hz~1KHz |
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400mV |
| 0.1mV |
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| 100M ȍ | 1200V peak | |
4V |
| 1mV |
| 0.5%+5 |
| 1%+5 |
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| 10Mȍ | 1200V peak | ||
40V |
| 10mV |
| 0.5%+5 |
| 1%+5 |
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| 10Mȍ | 1200V peak | ||
400V |
| 100mV |
| 0.5%+5 |
| 1%+5 |
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| 10Mȍ | 1200V peak | ||
750V |
| 1V |
| 0.8%+5 |
| 1.2%+5 |
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| 10Mȍ | 1200V peak | ||
AC Current (uA and mA - Autoranging): |
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Range |
| Resolution |
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| Burden | Overload Protection | ||||
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| Voltage | ||||
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| 45Hz~500Hz |
| 500Hz~1KHz |
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400uA |
| 0.1uA |
| 1.3%+5 |
| 1.6%+5 |
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| <0.25Vrms | 0.5A / 600V Fast Blow Fuse | ||
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4000uA |
| 1uA |
| 1.3%+5 |
| 1.6%+5 |
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| <1Vrms | 0.5A / 600V Fast Blow Fuse | ||
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40mA |
| 10uA |
| 1.3%+5 |
| 1.6%+5 |
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| <0.25Vrms | 0.5A / 600V Fast Blow Fuse | ||
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400mA |
| 100uA |
| 1.3%+5 |
| 1.6%+5 |
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| <1.5Vrms | 0.5A / 600V Fast Blow Fuse | ||
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20A |
| 10mA |
| 1.5%+5 |
| 1.8%+5 |
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| <1Vrms | 15A / 600V Fast Blow Fuse | ||
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DC Voltage (Autoranging): |
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Range |
| Resolution |
| Accuracy |
| Input Impedance | Overload Protection | |||||
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400mV |
| 0.1mV |
| 0.3%+2 |
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| 100M ȍ | 1200Vpeak | ||
4V |
| 1mV |
| 0.3%+2 |
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| 10Mȍ | 1200Vpeak | ||
40V |
| 10mV |
| 0.3%+2 |
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| 10Mȍ | 1200Vpeak | ||
400V |
| 100mV |
| 0.3%+2 |
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| 10Mȍ | 1200Vpeak | ||
1000V |
| 1V |
| 0.5%+2 |
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| 10Mȍ | 1200Vpeak | ||
DC Current (uA and mA - Autoranging): |
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Range |
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| Burden Voltage | Overload Protection | |||||
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400uA |
| 0.1uA |
| 0.8%+2 |
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| <0.25V | 0.5A / 600V Fast Blow Fuse | ||
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4000uA |
| 1uA |
| 0.8%+2 |
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| <1V | 0.5A / 600V Fast Blow Fuse | ||
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40mA |
| 10uA |
| 0.8%+2 |
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| <0.25V | 0.5A / 600V Fast Blow Fuse | ||
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400mA |
| 100uA |
| 0.8%+2 |
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| <1.5V | 0.5A / 600V Fast Blow Fuse | ||
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20A |
| 10mA |
| 1%+2 |
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| <1V | 15A / 600V Fast Blow Fuse | |
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Resistance (Autoranging): |
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Range |
| Resolution |
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| Test Voltage | Overload Protection | ||||
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400 ȍ |
| 0.1 ȍ |
| 0.6%+2 |
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| <1.5VDC | 600Vrms | ||
4K ȍ |
| 1 ȍ |
| 0.6%+2 |
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| <1.5VDC | 600Vrms | ||
40K ȍ |
| 10 ȍ |
| 0.6%+2 |
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| <1.5VDC | 600Vrms | ||
400K ȍ |
| 100 ȍ |
| 0.6%+2 |
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| <1.5VDC | 600Vrms | ||
4M ȍ |
| 1K ȍ |
| 0.6%+2 |
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| <1.5VDC | 600Vrms | ||
40M ȍ |
| 10K ȍ |
| 1%+3 |
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| <1.5VDC | 600Vrms | |
Continuity Beeper: |
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Range |
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| Active Range |
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| Test Voltage | Overload protection | |||
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| Under 40 ȍ |
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| <1.5V | 600Vrms | |
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