Bluelab Commercial Truncheon Meter User Manual

Care and use guide

Contents page

Features 2

To operate 2

Cleaning and maintenance 3

Battery replacement 3

Troubleshooting guide 4

Technical speci cations 4

Conductivity and understanding
the measuring scales 5

Bluelab measurement conversion chart 6

Product guarantee 8

Cleaning kits 9

Contact details 9

1.0 To operate

Using the Bluelab Commercial Truncheon® Nutrient Meter (see Figure 1) to
measure nutrient conductivity involves placing the probe sensor head in the
solution, followed by measuring and reading conductivity values on the stem
scale indicator light.

Figure 1. Bluelab Commercial Truncheon® Nutrient Meter

Measure conductivity

Place probe into nutrient solution and take reading as
indicated by the fl ashing lights.

Note: If the lights are dancing between two values, the reading
is between those two values. Some example readings are
shown in the table below:

Note: For very cold or very hot temperatures it will take 1-2
minutes for the probe to reach solution temperature. To help
decrease time taken to reach the solution temperature, place
the probe in an area where there is a strong movement of
solution, or stir solution with the probe.

Obtain another reading

To take another reading, simply place back in solution.

Clean probe

We recommend the probe be cleaned once every two
weeks according to the Cleaning and Maintenance
instructions. This can vary depending on frequency of use.

Features

Fully waterproof Battery operated

Auto on/off function No buttons, switches or knobs

No calibration required Daylight readable blue LED’s

Provided with EC, CF, ppm 500 and ppm 700 scales

English

1

Probe

Stem Scale

Value indicator light

Lights fl ashing
between these

EC values

0.8 and 1.0 0.8 - 1.0, 0.8 - 1.0, 0.8 - 1.0 0.9

2.8 and 3.2

Repeating pattern of

fl ashing lights (EC)

2.8 - 2.8 - 3.2, 2.8 - 2.8 - 3.2 2.9

2.8 - 3.2 - 3.2, 2.8 - 3.2 - 3.2 3.1

Reading
EC value

2

2

3

2.0 Cleaning and maintenance

Cleaning the Commercial Truncheon Meter probe frequently ensures accurate
readings. Clean the probe with a liquid scourer cream used in home bathrooms
and kitchens such as ‘Jif’, ‘Liquid Vim’, ‘Soft Scrub’, ‘Cif’, or ‘Viss’. Never use
scented varieties of cleaner as they affect the probe functions.

Remove shroud

Twist the shroud 90 degrees and then remove the
shroud.

Clean probe face

Place one or two drops of unscented liquid scourer,
such as ‘Jif’, ‘Liquid Vim’, ‘Soft Scrub’, ‘Cif, or ‘Viss’
on the probe face. Rub probe face with your fi nger or
Bluelab Chamois fi rmly and vigorously to clean.

Rinse probe

Rinse off all traces of cleaner under running water
using the same fi nger or other side of Bluelab
Chamois. Check that the water forms a fi lm on the
probe face with no ‘beads’ of water. If beading is
present repeat the cleaning process.

Replace shroud

3.0 Battery replacement

The Commercial Truncheon Meter is powered with 3 x AA type standard or
alkaline batteries. Do not use rechargeable batteries. Do not mix brands of
batteries. Do not mix old with new. Do not put upside down. Follow these steps
to replace the batteries.

Remove old batteries

Unfasten battery cap and tip out old batteries.

Check for corrosion

Batteries that have been inside the unit for a long length
of time may corrode. Check battery contacts and batteries
for any sign of corrosion. Contacts should be cleaned fi rst if
corrosion is found before proceeding to step 3.

Fit new batteries

Insert the new batteries positive (+) end down into the body.

Replace battery cap

Refasten battery cap. There must be no space left between
the cap and body to ensure the unit remains 100%
waterproof.

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English

2

3

4

Twist

3

1

2

3

4

Remove