
Downhole Orientation Sensor and Data Logger
The 3DM-DH3™ is a downhole orientation sensor and datalogger. It incorporates acceleration sensors, magnetic field sensors, and temperature sensors, together with an on-board microprocessor, embedded software algorithm, non-volatile memory for configuration, flash datalogging memory, and serial communication interface. Its form-factor, rated temperature range and power supply requirements are optimized for downhole applications. The 3DM-DH3™ provides accurate drill path measurements including Inclination, Azimuth, GTF, MTF, Dip Angle, sensor temperatures, G-TOT and H-TOT.

Best in Class
- precise downhole orientation
- high-speed sample rate & flexible data outputs
- extended use, low-power data logging
Easiest to Use
- rapid deployment in the drill string
- outputs drill path measurements
Cost Effective
- reduced cost and rapid time to market for customer’s applications
- aggressive volume discount schedule
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General Documentation
#1342: How do I repair or return a LORD MicroStrain® product?
In order to return any LORD MicroStrain® product either for repair or return, you must contact us for a Return Merchandise Authorization number (RMA). If you purchased directly from LORD MicroStrain® in the United States, please contact your Sales or Support Engineer to obtain an RMA. If you purchased directly from a LORD MicroStrain® distributor, please contact your distributor to obtain an RMA.
Direct link: view#1341: What are the terms and conditions under which LORD MicroStrain® products are sold?
LORD MicroStrain® complete terms and conditions of sale may be found at: http://files.microstrain.com/terms-conditions-sale.pdf
Direct link: view#1340: Where do I purchase LORD MicroStrain® products?
If you are located in the United States, LORD MicroStrain® supplies you directly. If you are in located in another country, LORD MicroStrain® products are available exclusively from LORD MicroStrain® distributors. Please use this locator to determine your distributor: http://www.microstrain.com/support/international
Direct link: view#1339: Does LORD MicroStrain® provide a trial period for its products?
To enable customers to try our standard products risk free, LORD MicroStrain® offers a 30 day return on the purchase of a starter kit. In order to take advantage of this offer, a purchase order or payment for the starter kit is required when the order is placed. 30 day trial details may be found at: http://www.microstrain.com/support/warranty
Direct link: view#1338: How do I get support for my LORD MicroStrain® products?
LORD MicroStrain® Support Engineers are always available to support you in any way we can by phone, email, SKYPE or Live Chat from our home page. Contact details may be found at: http://www.microstrain.com/support/contact-support
Direct link: view#1337: What is the shipping policy for LORD MicroStrain® products?
LORD MicroStrain® insures all products shipments to their full value unless the customer specifically states a different method.
Direct link: view#1336: What is the warranty for LORD MicroStrain® products?
LORD MicroStrain® warrants its standard products to be free from defective material and workmanship for a period of one (1) year from the original date of purchase. Warranty details may be found at: http://www.microstrain.com/support/warranty
Direct link: view#1335: What cables are needed to operate the 3DM-DH3?
The 3DM-DH3 is operated by a combination RS-422 communication and power cable, part number 4005-0003.
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#1326: Is the 3DM-DH3 calibrated?
Yes. The unit is factory calibrated and ready for use with power-up.
Direct link: view#1325: How is the 3DM-DH3 deployed in the drill string?
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.
Direct link: view#1324: What is the measurement accuracy of the 3DM-DH3?
The 3DM-DH3 has measurment accuracy of +/-0.2 degrees inclination and +/-0.5 degrees azimuth.
Direct link: view#1323: What is the communication interface to the 3DM-DH3?
The 3DM-DH3 has a four-wire full-duplex RS-422 serial communication interface.
Direct link: view#1322: Does software come with the 3DM-DH3?
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.
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#1321: Within what temperature range will the 3DM-DH3 operate?
The 3DM-DH3 will operate within a temperature range of - 40 degrees C to 125 degrees C.
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Applications
- Downhole Orientation
- Vertical Wells
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