Sper Scientific 840064 Vacuum Meter - Manual (Page 5)

- 5 -
3-E. AUTOMATIC SHUT OFF
• This unit has a built-in automatic shut off function to prolong battery
life. The meter will shut off automatically if no buttons are pressed
within 10 minutes.
• To deactivate this feature, press the Max/Min (3) button.
• When "REC" is displayed, automatic shut off is not available.
3-F. BATTERY REPLACEMENT
• Replace the battery when the low battery icon is dis-
played in the left corner of LCD.
• In-spec measurements may be made for several hours after the low
battery indicator appears.
• Slide the battery cover away from the meter, remove the battery and
replace it with a 9V battery (alkaline or heavy duty type).
• Close the battery cover.
3-G. OPTIONAL ACCESSORIES
• 850080 Software
• 840094 RS232 to USB Adaptor Cable
• 840055 48" RS232 Cable (required for use w/software)
• 840090 Water Resistant Instrument Pouch