32
M
EASURING
HALF
-
CELL
POTENTIAL
R
Figure 20. Typical instrument configuration for half-cell measurements
10.3 What happens when you press Enter [
]
1. The half-cell potential reading is entered into the current statistical analysis.
2. If a batch is open, the reading is saved into a memory location.
The Covermeter will then advance (scroll) to the next memory location. When the last memory
location of a row in a grid
w
is reached, the Covermeter will advance to the first memory
location of the next row (Figure 13). When the final memory location in a grid or linear batch is
filled, the Covermeter closes the batch and exits batching.
Refer to “The BATCH softkey” on page 45 for information on how to navigate around a batch
and review, delete, overwrite and skip memory locations while you are taking readings.
3. The Covermeter will beep:
Model SH:
• Single beep - reading taken.
• Triple beep - reading taken in last memory location of the batch.
• Triple beep (higher pitch) - reading taken is outside limits
x
if limits have been set
(
MENU / SETUP / LIMITS).
Model TH:
w.
Grid batches - available on Elcometer 331 Model TH only.
x.
Typically, a low limit will be applied at the threshold that would indicate corrosion e.g. -350 mV. Any readings
lower (more negative) than this would then cause an alarm and be tagged as below limit in the statistics and/
or the batch.
331.book Page 32 Thursday, March 12, 2009 9:46 PM
