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Digital Flow Meter with back-run stop

Product #: 23.091

Flow meter with back-run stop for measuring water volume in vertical plankton net tows.

Imgi 9 23.091 Flow Meter F 1000 600 1

About

The 23.091 Digital Flow Meter with back-run stop is used to determine the amount of water passing through a plankton net or a pipe. The back-run stop mechanism ensures the counter only records flow during upward or retrieval movement—ideal for vertical hauls. It features a 5-digit counter, a 70 mm propeller, and a 32 mm counter body. The unit’s free-flooding design allows operation at unlimited oceanographic depths. Water volume can be calculated using KC Denmark’s conversion spreadsheet for circular, square, or rectangular net shapes.

Features

Highlighted features for Digital Flow Meter with back-run stop

01
Back-run stop mechanism
Ensures counting occurs only during retrieval or upward motion, eliminating errors from descent.
02
Full-depth operation
Free-flooding design allows safe use at any oceanographic depth.
03
Accurate flow conversion
Compatible with KC Denmark’s spreadsheet for converting read-out to water volume.

Specifications

Digital Flow Meter with back-run stop Specifications

Model
23.091
Propeller diameter
70 mm
Counter body diameter
32 mm
Length
185 mm
Counter type
5-digit mechanical
Flow meter read-out max value
99999
Connection
Triple point connection on nosepiece
Design
Free flooding, suitable for unlimited depth

Application

Recommended for vertical tows of plankton nets, ensuring accurate measurement by preventing counter activity during descent. Also suitable for use in pipes of known diameter.

Accessories for Digital Flow Meter with back-run stop

  • # 23.090

    Digital Flow Meter

    Standard version without back-run stop, recommended for horizontal tows.

  • # __zz.mis-7f3a9c2b

    Conversion Table, Counter vs. Water Volume Spreadsheet

    Excel spreadsheet for calculating water volume from flow meter read-out.