Elcometer 204 Operating Instructions Manual page 8

R
2.3 THE KEYPAD
Key Functions
Press to switch the gauge on or off.
ON
When switching off, the gauge retains all of its settings.
OFF
If the gauge is idle for 5 minutes, it will switch itself off.
IN
Press to change units (metric/imperial)
MM
Switches the display backlight between three settings; on, off and auto.
• ON - backlight is on
• OFF - backlight is off
• AUTO - backlight automatically illuminates while the gauge is making a measurement and switches
off after several seconds (to conserve battery life).
PRB
Press to zero the gauge - see "Probe Zero" on page 10.
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