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The shear pin we use in the OX and OX Mini assembly is designed to break under a specific amount of pressure (approx. shear strength 17,5 kN). Preventing the risk of having to cut the wireline and leave the tool down the hole if the tube is stuck. Only the latch unit of the OX will remain in the hole when this pin breaks. The survey can still be completed also.
Surveying in the diamond drilling process
Up to 100m/min continuous survey speed
Precise repeatability at all angles
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ACTx™
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DeviAligner™
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IMDEXHUB-IQ
Product
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LOGRx™
Product
Dimensions
Running gear
Length
1230mm / 48.4in
DeviGyro sensor
Length
140mm / 5.5in
Weight
0.2kg / 0.4lbs
Overshot Xpress (OX)
Weight
10.5kg / 23.1bs
OX MINI
Weight
7.4kg / 16.3lbs
Specifications
Pressure (bar/psi)
300bar / 4350psi
Temperature range
-20°C - 60°C / -4°F - 140°F
Azimuth accuracy
±0.1°/100m
Typical positional accuracy
0.2%
Inclination accuracy
±0.1°*
Tool face accuracy
±0.2°*
Azimuth range
0°-360°
Inclination range
-90° - +90°
Temperature
Recorded
Survey mode
Continuous or multi-shot
Survey speed
Up to 100m/min
Affected by magnetics
No
Memory
6h 40min
Data communication
Wireless
Compatible sizes
Overshot Xpress (OX)
NWL, HWL & PWL
OX MINI
BWL, NWL
Battery
Battery type
1x CR 123a
Battery capacity, continuous use
24 hours
Handheld device
Device
Type
Android Smartphone
Software
DeviGyro App
Battery
Battery capacity, continuous use
15 hours
Battery type
Lithium
IP rating
IP68
*Calibrated for temperature range -10°C to 60°C
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DeviGyro OX Mini improves workflow efficiencies with reduced cost and safety benefits
Case Study
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Product Data Sheet
Product support, anywhere, anytime
We’re committed to offering the highest level of support to our customers, which is why we have launched our Customer Care Portal, so you can receive support on our products and solutions, wherever you are in the world.
- Raise product support requests anytime (24/7)
- Access our comprehensive knowledge base
- Track and manage your support requests
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Calculate deviation
Frequently asked questions
Can you run a survey without retrieving the core tube?
Yes. Though for this process we recommend using the spear cap (provided in OX kit) or removing the overshot latch unit prior to doing so, to mitigate the risk of accidentally latching to the tube.
What drilling applications is the DeviGyro OX Mini suited for?
The DeviGyro OX Mini is a purpose-built overshot surveying solution for B and N-size diamond core drilling applications.
How long does it take to survey a 100m drill hole with the DeviGyro Overshot Xpress (OX) and OX Mini?
Assuming a moderate average survey speed of approx. 60m/min, a 100m survey takes about 4 minutes. A key point here is that by running the OX when retrieving core, surveying becomes part of the drilling cycle and therefore survey time does not interrupt drilling productivity.
Does the DeviGyro OX Mini support ADE (Automatic Depth Estimation) Mode?
Yes, ADE Mode is available with all DeviGyro survey solutions including the OX Mini. Simply conduct the latest update of the DeviGyro App, and you will have ADE mode as an option to select from.
Why aren’t H and P-size centralizers available for the DeviGyro OX Mini?
The DeviGyro OX Mini is designed specifically for surveying and retrieving core tubes in B and N-size drill rods only. The small design of the OX Mini assembly does not support the weights associated with larger core tubes. The DeviGyro Overshot Xpress (OX) survey solution on the other hand is designed specifically for surveying and retrieving core tubes in N, H and P- size rods. Capable of pulling heavier tubes such as H and P-size.
