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From time to time the inertial sensor may need recalibration.

Example: If the inertial sensor contains magnetometers, coming in contact with magnetic influences (magnets, motors, etc.) may cause residual magnetism to be picked up by the on-board components which alter the calibration.  In these cases, the inertial sensor should be returned to the factory for recalibration.

Example: The inertial sensor receives a severe shock, slightly altering the position of the circuit boards in relation to the enclosure, again altering the calibration.  In these cases, the unit should be returned to the factory for recalibration.

Yes.  The unit is factory calibrated and ready for use with power-up.

Yes.  The unit is factory calibrated and ready for use with power-up.

Yes.  The unit is factory calibrated and ready for use with power-up.

Physically, the 3DM-DH3 is easily mounted into the drill string using its body’s threading attachments. It can be tethered to an RS-422 communication cable for continuous real-time measurements to a host computer during drilling operations, or it can be remotely deployed and run as a datalogger, with data retrieval after it has been run through the drill path. The unit can be powered through the communication cable tether from a platform source or by batteries.

The 3DM-DH3 has measurment accuracy of +/-0.2 degrees inclination and +/-0.5 degrees azimuth.

The 3DM-DH3 has a four-wire full-duplex RS-422 serial communication interface.

Yes.  A Windows XP/Vista/7 compatible software is shipped the product.  The software allows the user to configure, operate, display and save data from the sensor.

The 3DM-DH3 will operate within a temperature range of - 40 degrees C to 125 degrees C.

The 3DM-DH3 provides accurate drill path measurements including Inclination, Azimuth, GTF, MTF, Dip Angle, sensor temperatures, G-TOT and H-TOT.

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