The Turner Designs Little Dipper In-line fluorometer is a low cost, compact fluorometer designed for monitoring and/ or control of fluorescent dyes in industrial water systems.The use of inhibitor with PTSA or Fluorescein fluorescent dye in the formulation, plus the Little Dipper fluorometer sensor, makes it easy for Walchem WebMasters' to measure and control the concentrationLittle Dipper is an accurate, single channel, light industrial fluorometer which installs directly into process streams. It provides an analog signal output proportional to the concentration of the fluorophore being measured. The Little Dipper is a rugged, 24/7 sampling device that provides maximum performance, minimal maintenance and solid state reliability. It can be used with data collection systems such as the WebMasterONE to monitor and control the level of treatment chemicals for cooling tower and boiler applications
- Simple calibration with the WebMasterONE
- Simple installation, supplied with pre-wired isolator
- Accurate in-line measurement of fluorescent liquids
- Provides better control of treatment chemicals
- Industrial water process control for cooling towers, boilers and others
- Leak detection
- Reverse osmosis
Two sensors are available through Walchem. You can choose the PTSA sensor for a variety of applications including cooling towers. You can choose the Fluorescein sensor for a variety of applications including boilers
Typical installation for cooling tower

Typical installation for boiler (continuous sampling only)

Low cost
Fluorescent dye is very cost effective
Direct Measurement
Readings may be made directly on a continuous-flow sample or on an individual sample, without processing
Low Tracer Concentration
A fluorometer can detect tracer concentrations as low as 0.01 parts per billion (ppb). Detection would be impossible without a fluorometer
Durable and Compact
All parts are durable and easily combine within a Walchem control panel
Accurate
Fluorescent tracer techniques are so accurate that they are used to calibrate flow meters
Convenient
The low tracer concentration required makes handling the tracers much easier
Stable
The fluorescent dye chemistry is very stable
