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McOHM EL3i

The McOHM-EL3i is a cost-effective instrument that can be applied to both electrical sounding and well logging (resistivity, temperature & caliper). A color 10.1 inch LCD tablet, a large-capacity transmitter circuit part and a high-performance potential measurement part are all stored in one compact case, giving this instrument superior operability and portability.

It is equipped with a powerful transmitter (400 V, 120 mA), a preamplifier with a high input resistance of 10 MΩ and a 24 bit A / D converter, and a high-performance receiver is mounted to enable measurements with a resolution of 0.001 mV. Also, its data are in comma-separated value (CSV) format that can be edited on a PC easily.

McOHM EL3i

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Features

  • It can be applied to both electrical sounding and well logging
  • Data can be checked easily on its color 10.1 inch color LCD tablet
  • VES (Vertical electrical sounding) curve can be plotted on the display
  • The conduction current of up to 1000 mA is possible when used with a Power Booster
  • Data (CSV format) can be copied into a USB memory through its USB ports

Specification

Electrical sounding mode

Maximum distributed voltage 400 V (800 V p-p)
Conducting cycle 2, 3, 4 seconds
Distributed current 1, 2, 20, 60, 120 mA (constant current)
250, 500, 750, 1000 mA (when power booster MODEL-2162 is used)
Potential measurement range + / -5 V (with SP cancel function)
Measurement resolution 0.001mV
Applicable allocation of electrodes Schlumberger, Wenner, Dipole-Dipole

Logging mode

Normal resistivity

Applied probe Normal probe (MODEL-3174 : 25, 50, 100 cm)
Measurement range Resistivity 0 to 20 kΩm (Normal resistivity)
SP + / - 2 V
Maximum distributed voltage 400 V (800 V p-p)
Distributed current 1, 2, 20, 60 mA (constant current)
Conducting cycle 20 Hz

Temperature logging

Applied probe Temperature probe (MODEL-3571)
Measurement range 0 to 70 ˚C
Accuracy ± 2 % FS

Caliper logging

Applied probe Caliper probe (MODEL-3973)
Measurement range 50 to 100 mm (option : 300 mm)
Accuracy ± 2 % FS

System

Display 10.1 inch color LCD tablet (1,920 × 1,200 pixels)
OS Windows 10 Professional, 64 bit
Storage SSD 128 GB
External I / F USB 3.0 × 3 ports
Power supply voltage DC 12 V (10.8 - 13.2 V)
Operation temperature range -5 to +45 ˚C
Dimensions 178 (H) × 376 (W) × 475 (D) mm (excluding protrusion)
Weight 9 kg

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