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Extech Instruments MA250 User Manual

Extech Instruments MA250
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MA250-EU-EN-V3.2-6/11
8
Data Hold
To freeze the LCD reading, press the HOLD button. The HOLD icon appears on the LCD. Press the
HOLD button again to return to normal operation.
Relative
Press the REL button (REL will appear in the display) to zero the reading and create a reference
point. All future reading will be the difference between the actual reading and the stored “REL”
reading. In the REL mode, autoranging is disabled and measurements are limited to the range
active when the REL button was pressed. Press the REL button to exit the mode.
Note: Relative does not function in Frequency or Duty Cycle mode.
Automatic Power Off
In order to conserve battery life, the meter will automatically turn off after approximately 30 minutes.
To turn the meter on again, change the position of the function switch.
Low battery indication
When the icon appears in the display, the battery should be replaced. Refer to the battery
replacement procedure in the maintenance section.
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Extech Instruments MA250 Specifications

General IconGeneral
BrandExtech Instruments
ModelMA250
CategoryMeasuring Instruments
LanguageEnglish

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