Dual Induction Conductivity Probe HI-456
The probe HI-456 is designed for measurement of electrical conductivity of rocks in boreholes. High stability and exceptionally wide dynamic range are giving you possibility to carry on precise measurements of conductivity of sand-clay layers, lithium salts, uranium sulphuric acid extraction, surveys in chemical ecology and also mineralized water-soaked sands. Thanks to the induction method applied the probes can be used in water filled, dry and plastic cased boreholes. The response is practically instantaneous (<0.5s).
Probe Parameters
| Diameter | 45 mm |
| Length | 130 cm |
| Weigh | 7.0 kg |
| Max. Working Temperature/Pressure | 75°C/15 MPa |
| Min. No. of Cable Conductors | 2 |
| Supply Voltage Range | 30 – 45 VDC |
| Max./Nominal Current Consumption | 100/150 mADC |
| Supply Voltage Polarity | + on central cond. |
| − on probe case |
Measuring Parameters
| Sensor | two coil system |
| Intercoil Spacing | 50 cm |
| Operating Frequency | ≈100 kHz |
| Communication (negative pulse) | 0 – 20 000 cps |
| Conductivity range | 1 mS/m – 6 S/m |
| Accuracy | < 3% F.S. |
| Stability of Zero | < 0.5 mS/m/10°C |
