ACT III RD
rapid descent core orientation tool
4
6. Retrieving Orientation from ACT III RD
With the core inner tube assembly returned to the surface the bottom of hole orientation can now be retrieved from the ACT III RD tool and
transferred to the core using the same controller.
6.1. Remove the ‘Top Cap’ from ACT III RD to expose the magnetic Infra Red Port and insert the ACT III RD controller (Fig. 12).
6.2. Press and hold the R button for 5 seconds – the LCD display will ash READING (Fig. 13) followed by the ACT III RD tool serial number and
then BATT OK.
N.B. The R must be pressed for the full 5 seconds in order to view the below screens.
Once BATT OK appears the LEDs will ash, you can now remove your nger from the
R button.
N.B. BATT OK will still be displayed after you stop pressing the R button.
6.3. While BATT OK is still displayed on the LCD screen press R again and REALIGN will
appear on the screen (Fig. 14) for 2 seconds followed by the direction arrows (Fig. 15).
6.4. With the ACT III RD controller still connected to the infra red port the inner tube assembly should be rotated in the direction the arrows and
red LEDs are indicating (Fig. 15).
As the bottom of hole orientation position approaches the LCD arrows will reduce from 3 each side (Fig. 15) to 1 (Fig. 16).
N.B. The ACT III RD controller should be held still while only the inner tube assembly is rotated.
6.5. When the inner tube assembly has been rotated to the bottom of hole position the LCD screen will display two arrows each side of the screen
(Fig. 17) and all LEDs will ash. This indicates bottom of hole orientation has been achieved and can now be transferred to the core.
Fig. 12
Fig. 17
Fig. 13 Fig. 16
Fig. 15
Fig. 14
LCD arrows
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General