Heath Consultants GT Series - Manual (Page 69)

6-5
BARHOLE TESTING MODE
To stop purge:
• Press and hold OK .
The first barhole screen is then displayed:
Fig. 6.5 Barhole Timer
Up to six barhole readings can be stored. These are
identified as ‘Barhole 1’ to ‘Barhole 6’.
After the first reading is stored (as Barhole 1), the second
reading (Barhole 2) will be automatically selected,
however, by using the UP
or DOWN buttons the
user can specify where the next reading will be stored.
This may be useful if there was a problem with the reading,
e.g. sample fault.
The sequence of events will be as follows:
• Press and hold START to initiate timer and
pump. Once started, the user cannot stop a sam-
ple.
• Counter decrements from initial value.
• At ‘zero-time’, the pump switches OFF and the
peak and final sustained (actual) readings are dis-
played as shown in Fig. 6.6.