Measuring Depth Of Cover; Before You Start; Procedure - Elcometer Protovale 331 Operating Instructions Manual

M
EASURING DEPTH OF COVER

6 MEASURING DEPTH OF COVER

This section describes how to set up and use your Covermeter to measure the
depth of cover over reinforcement bars.

6.1 Before you start

• Are you using the correct search head?
See "Search heads" on page 57.
• Do you require statistics?
See "Statistics" on page 38.
• Do you want to save readings in memory?
See "Batching/Data logging" on page 41.
• What units of measurement do you want to use?
See "SETUP" on page 16.

6.2 Procedure

1. Connect the search head to the Covermeter.
2. Switch on the Covermeter.
3. Zero the Covermeter.
4. Set sound mode to 'locate' -
g
LOCATE .
5. Select bar diameter - see "Selecting a bar size" on page 27.
6. Adjust sensitivity - see "Adjusting sensitivity" on page 34.
7. Locate the reinforcement bar using the sound, the LED and the display as
indicators.
The reading of cover is continuously updated on the display in large digits.
If AutoSize is switched on (
AUTOSIZE INFO), smaller bracketed readings show the estimate of the bar
size (autosize) and the corresponding depth of cover. If the autosize
calculation cannot be performed because the signal is too small (cover too
great), the autosize and autosize depth of cover readings are blanked (the
display shows '--').
8. Compare the bar diameter with the autosize bar diameter. If the two
numbers are significantly different, stop depth of cover measurement and
g. Although Locate Mode is specified here, other Sound/Detection modes are available -
see "Sound mode/Detection mode" on page 34 for further details.
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MENU / SETUP / SOUND MODE /
MENU / SETUP / DISPLAY / SHOW