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   e-SYNC - Cable Lowered Survey Train Assembly Instructions
     
 
 

The following diagrams show typical survey train configurations. When assembling any survey train, please be careful of the following; do not use pipe wrenches on the instrument and always check to make sure the battery compartment and data port plug are firmly closed to prevent water damage. Ensure the arrow on the instrument points into the hole (away from the cable swivel).

Cable Lowered Surveying has many applications which include; site engineering, open hole, reverse circulation, where the hole is steeper than 45. Holes between 35 to 45 from horizontal can also be surveyed with the addition of roller assemblies.

 

Configurations


Configuration 1

Holes that are close to the diameter of the instrument do not require centralization and therefore the survey train only requires the following items;

1 cable swivel 4 instrument
2 female-female coupling 5 female-female coupling
3 sinker rod(s) (optional) 6 impact foot.

A sinker rod (item 3) is only used if extra weight is required to reduce the time it takes for the survey train to get to the bottom of the hole. In some applications multiple sinker rods may be required.


Configuration 2

To increase accuracy in larger diameter holes, the female-female couplings are replaced by centralizers. The survey train would therefore have the following items;
 

1 cable swivel 4 instrument
2 centralizer 5 centralizer
3 extension/sinker rod(s) (optional) 6 impact foot

A sinker rod (item 3) is only used if extra weight is required to reduce the time it takes for the survey train get to the bottom of the hole, multiple sinker rods may be required for some applications. Extension rods (item 3) are light weight versions of sinker rods which can be used in some applications to increase the accuracy of inclination readings.
 

 
         
 
     

 

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Pajari Instruments Ltd. 2015

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