Using The Earphone; Zeroing The Covermeter - Elcometer Protovale 331 Operating Instructions Manual

This 5-pin RS232 interface is used with an optional data transfer cable (see
"Accessories" on page 36) to connect the Covermeter to the RS232 port
computer. When the Covermeter is connected to a computer you can:
• Download personalised screens to the Covermeter (see "Personalised
welcome screen" on page 31).

3.8 Using the earphone

To use the earphone, plug the connector into the 3.5 mm socket marked
the front of the Covermeter. Replacement earphones are available as an
optional accessory - see "Accessories" on page 36.

3.9 Zeroing the Covermeter

This action is requested by the Covermeter whenever it is switched on, and
periodically thereafter (at least once every 10 minutes). The user can optionally
zero the instrument at any time.
If zeroing is required, the cover display is blanked, the user is prompted, and no
further readings can be entered until zeroing is completed.
To zero the Covermeter, hold the search head in the air well away from any
metal and press the ZERO softkey. Zeroing is complete when the ZERO softkey
indicator stops flashing. Sometimes more than one press of the ZERO softkey
will be required; this is quite normal.
c. An RS232 to USB transfer cable is available which allows you to connect your
Covermeter to a USB port on your computer. See "Accessories" on page 36 for
ordering details.
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