CMD-DUO "Loop Loop" Frequency Domain EM Conductivity Mapper

GF Instruments' CMD-DUO is an affordable “loop-loop” frequency domain EM system suitable for exploration & mapping of minerals, groundwater and other resources, to depths of approx 60m.

APPLICATIONS:

• Geological surveying
• Groundwater exploration & monitoring
• Ground contamination mapping & rehabilitation audit
• Mineral & resource prospecting
• Investigation of underground pipes/tanks.

ADVANTAGES OVER OTHER INSTRUMENTS:

• The CMD-DUO uses modern materials & technologies, making it lighter than competitors (Tx = 9.5kg; Rx = 6.2kg). This, combined with longer battery life, is a big advantage over a full days’ work in the field.

• Everything is controlled via Bluetooth from a single, lightweight console (0.7kg); the only cable is a single reference cable joining the two coils (10, 20 & 40m reference cables supplied) – This makes it less prone to snagging, and more user friendly than competitive systems.

• The CMD-DUO is a wide-bandwidth, “single range” instrument, so the user is not required to guess, then select a limited “measurement range”; simply switch on and go.

• Sophisticated noise-rejection technology allows the CMD-DUO to be used in culturally noisy areas (eg close to power lines).

• The instrument is factory calibrated, so there are no calibration procedures before measurement, or periodical adjustments required.

MAIN FEATURES:

• Graded depth range (7.5 - 60 m)
• Manual or continuous measuring modes
• High temperature stability and noise resistance
• Smart and rugged design
• Rechargeable Li-Ion cells (one charge gives 1-2 working days) or AA cells
• Easy control system with graphical screen and large memory
• Data download via USB port or flash disk
• Bluetooth communication with probe

SPECIFICATIONS:

Transmitter and receiver coils are connected with distance/reference cable.

Coils:

• Measured quantities:
  Apparent conductivity in mS/m
  In-phase ratio in ppt (informative values)
• Measuring range: 1000 mS/m, resolution 0.1 mS/m
• Measurement accuracy: ± 4% at 50 mS/m
• Full and half depth range (vertical and horizontal orientation of dipoles)
• Power supply: Li-Ion battery packs (one charge for up to 20 hours of work)
• Operating temperature: -10 °C to +50 °C
   

  Effective High/Low Depth Range	Dipole Center Distance
  15 / 7.5 m	10 m
  30 / 15 m	20 m
  60 / 30 m	40 m

  
   
• Dimensions / Weight
  Transmitter: 65 cm diameter / 9.5 kg
  Receiver: 65 cm diameter / 6.2 kg
  Complete working weight of the set with 20 m cable is 17.7 kg.

Control Unit:

Connection with coils is provided by integrated Bluetooth technology.
 
• Five modes of measurements:
        - Manual measurement
        - Continuous measurement
        - GPS Manual measurement
        - GPS Continuous measurement
        - Search mode
• Measuring time: 1 – 20 s
• Direct support of GPS receiver with UTM/UPS possibility
• Data flash memory: 128 MB
• Power supply: Li-Ion battery pack (one charge up to 32 hours of work)
• Dimensions: 270 x 90 (145) x 60 mm
• Weight: 0.7 kg 

Download the Brochure - CMD-DUO.pdf  (1.5MB)

Please contact us for pricing