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ZT100 I-Series

The ZelenTech I-Series is a new range of insert Watercut Monitors (also known as BS&W, OWD, WFM or Water in Oil Analyzers) developed in-house

The I-Series is inserted vertically into large lines through a 2 inch or 3 inch nozzle.

For smaller pipes also check out the F-Series and the new S-Series of water cut meters.

The ZelenTech ZT-100 Watercut Monitor determines the percent watercut in an oil emulsion without requiring the physical separation of the fluids. The emulsion stream is continuously monitored for capacitance and converted into percentage of water by the Watercut Monitor logic.

  • Inherits functionality and safety from the F-Series.
  • Fully Blow-Out Proof Safe design.
  • Up to ANSI Class 1500 or 250 barg.
  • Retractable.
  • Retractable under pressure.
  • NEL, ATEX or GOST certifications available.

ZT-100 I-Series

ZelenTech ZT-100 Watercut Meters (BS & W, OWM)


  • Automatic Temp Comp
  • Optional Density Comp
  • HART + Modbus available
  • PC Interface



I-Series General Data

Principle of OperationHigh Frequency Digital Capacitance
Resolution (Low Range)0.001%
Accuracy (Low Range)0.01%
Resolution (High Range)0.05%
Accuracy (High Range)0.05%
Repeatability0.01% Absolute
Max Water (Low Range)25%
Max Water (High Range)100%
Temp Compensation Range>0°C – 180°C

I-Series Specification

Response time1 sec
Output4-20mA + HART
Power Supply24VDC (Loop Powered)
Power Consumption0.66W Max
Temperature (Media)+150° C (250 with High Temp Option)
Temperature (Ambient)+60° C
Ingress ProtectionIP66 / Nema 4X & 7
Measurement Range0-25% or 0-100%
Pressure RatingUp to Class 1500#
Probe entry nozzle sizes2 inch or 3 inch
Line Sizes Nominal SizesFrom 12 inch to 42 inch
Material (Standard)316L (Optional Duplex, Monel or other steels)
Seals and electrical insulatorsPEEK

I-Series Mechanical Data

Wetted Steel Material316L Standard (More exotic materials available)
Max. Working PressureUp to Class 1500#
Max. Fluid Temperature180°C Standard (240°C Optional)
Max. Ambient Temperature65°C
Process ConnectionANSI, DIN

The ZT-100 is available with a variety of certifications to suit different locations


EXD Class 1, Division 1


II 2 GD Ex d IIC T6÷T4 - Ex tD A21 IP 66/67 T85°C ÷ T135°C


Certified GOST EXD (Russia)

I-Series Configurations and Features

Flanged Insertion Models:

  • Fits in 2 inch or 3 inch nozzles
  • ANSI or DIN Flange
  • Raised Face or RTJ Flange
  • Insertion into lines from 12 inch to 48 inch
  • Compatible with any Piping Specification

Measurement Ranges:

  • Low Range 0-25%
  • Mid Range 0-65%
  • High Range 0-100%

Design Features:

  • Blow-Out Proof Self-Jamming
  • Low Flow distortion
  • 2-wire Loop powered
  • Temperature Compensation
  • Optional Density Compensation
  • Retractable

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