Products

Borehole Logging Systems

Induction Conductivity

H3I-453
H4I-453
HI-381
HI-453, HI-453E
HI-453F
HII-383
HII-453

Magnetic Susceptibility

HM-453, HM-383, HM-320
HM-453E, HM-383E
HM-100
HMM-453
HMG-453

Combined probes

HMI-453, HMI-453E

Other probes

HC-380
HC-380C
HC-453, HC-453a
HC-454
HRT-381
HF-380
HGSPR-380
HF-500
HN-453
HFN-381
HGG-453
HDG-453
HLG-382

Other products

BHC-200
Geo set HDS-600
Portable Winches
Portable Logging System
Cameras

Accessories

AH-30, AH-150

Logging instruments

Nephelometer & Photometer Probe HFN-381

The probe has proved good quality of measurement in studying hydraulic arameters of aqiufers (hydraulic conductivity and transmitivity).
The sencor consists of a red LED as a source of monochromatic light and light-sensitive detector. The food colour Brilliant Blue, serial No. E133 is used as a tracer. That colour is on the EU list of allowed food colours, therefore the probe can be used in drinking water wells.
Due to a high sensitivity of photometric detector, very low concentrations of the dye (in the range betw. 10 to 20 mg/l) can be used, and the probe can measure vely low vertical and/or horizontal groundwater flows.
In contamination studies, the tracer has no interrerence with usually controlled and tested contaminants. The response of the probe is practically instantaneous (in order of seconds).

Nephelometer & Photometer Probe HFN-381

Probe Parameters

Diameter 50/38 mm
Length 100 cm
Weigh 4.0 kg
Max. Working Tem./Pressure 75°C/15 MPa
Min. No. of Cable Conductors 2
Supply Voltage Range 30 – 45 VDC
Max./Nom. Current Consumption 100/50 mADC
Supply Voltage Polarity + on central cond.
  − on probe casing

Photometer Parameters

Measuring Range 0 – 1 000 cps
Precission ±5%
Communication (positive pulse) 0 – 1 000 cps

Thermometer Parameters

Measuring range 0 – 5 000 cps
Precission ±5%
Communication (negative pulse) 0 – 5 000 cps

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