Meter Description; Control Buttons - Extech Instruments EX820A Quick Start Manual

METER DESCRIPTION

1. Current clamp.
2. Clamp trigger.
3. Backlight button.
4. Function switch.
5. IR measure button.
6.

Control buttons.

7. Backlit LCD.
8. Negative test lead jack.
9. Positive test lead jack.
Battery compartment and lenses on
back of meter.
CONTROL BUTTONS
Set function switch to the IRT position, then hold this button to
scan surface temperature.
Press to switch LCD backlight on or off.
Short press to freeze/unfreeze the reading.
Long press to enable/disable the inrush current circuit when
measuring AC current.
Short press to show/hide the measured signal's peak.
Long press to engage or remove the low pass filter, for measuring
AC voltage.
#NAS100186; r. AE/96720/98047; en-US
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