LaMotte 5-0037-02 User manual

1

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This manual serves to explain the use of the Conductivity and TDS
handheld meters. The models covered are the CON 6 PLUS and TDS 6
PLUS.

This manual is written to cover as many anticipated applications of

Department.

health hazards. To view or print a Safety Data Sheet (SDS) for these

children except under adult supervision.

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temperature (°C) while the TDS 6 PLUS measures total dissolved
solids (TDS) in parts per million (ppm) or parts per thousand (ppt) and

REPLACEMENT PARTS AND ACCESSORIES.

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2.1 Description of Keypad Functions

ON/OFF

measurement mode that was last used.

CAL

MODE

HOLD

ENTER

Selects desired measurement mode. When pressed

information.

6

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2.2 Description of LCD Annunciators

(temperature).

67

HO LO

5

%

C°

m

S

µ

pptm

1

1.

Primary display

2.

Parts per million (ppm) or parts per thousand (ppt)
(TDS 6 PLUS)

3.

indicator (CON 6 PLUS)

4.

Temperature indicator

5.

6.

7.

frozen

4
3

2

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2.3 Inserting & Removing the Rubber Boot/Stand

1.

2.4 Inserting New Batteries

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2.5 Battery Replacement

low.

LO

S

µ

1.

2.

3.

Erroneous results will occur
during calibration and measurement if the probe guard is
not used.

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1. DO NOT perform

BNC

measurements without the

place.

continuous immersion.

Probe Care and Maintenance

for more information.

2.7 Connecting the Probe

1.

connector for
probe

2.5 mm mini phono
jack for
temperature sensor

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2.8 Switching the Meter On

Press ON/OFF
various setup parameters when switched on.

1.
The second screen will show the nominal cell constant value.

The CON 6 PLUS and TDS 6 PLUS meters can accept

C 1.0

Advanced Setup to modify.

The third screen will show the Normalization Temperature which

Advanced Setup to modify.

t 2.1%

Advanced Setup to modify.

t 25.0 °C

measurement mode. Note: The meter will use the measurement

CON 6 PLUS

ON

OFF

Measurement Mode

m

S

µ

pH %MINMAXLOHO

FC°°

m

S

S

µ

µ

pptmV

C°

%

11

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TDS 6 PLUS

ON

OFF

Measurement Mode

pptm

pH %MINMAXLOHO

m

µ

pptmV

ppm

FC°°

S

2.9 Changing the Mode

MODE

The annunciator will indicate the measurement mode.

C°

%

Annunciator

C°

S

µ

MODE

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3.1 Important Information on Meter Calibration

CON 6
PLUS Conductivity Range

TDS 6
PLUS TDS Range

Recommended Calibration

Solution Range

Recommended Calibration

Solution Range

Section 5.8 Restore Factory

Default Values.

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3.2 Preparing the Meter for Calibration

samples. Deionized water is ideal.

3.3 Selection of Auto or Manual Calibration (CON 6 PLUS)

Normalization

Temperature

Calibration Standards (Range)

1.

1.

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See Section 5.3 Advanced Setup to modify automatic or manual

3.4 Using Automatic Calibration (CON 6 PLUS)

1. MODE
select the conductivity mode.

or a rinse solution. Rinse with a small

used.

Press the CAL

CA

measurement mode.

ENTER

Measurement Mode

mS

CAL

mS

HOLD

ENTER

mS

donE

meter returns to the measurement
mode.

6.

mS

NOTES:

•

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Err 1

•

indicated and the meter will return to the measurement mode.

•

3.5 Manual Calibration

1. MODE
mode.

Err 2

Measurement Mode

deionized water or a rinse solution.

standard.

Press CAL to enter the conductivity

CA

press CAL to return to the measurement mode.

or

6. Press ENTER

CO

meter will return to measurement mode.

CAL

HOLD

ENTER

mS

mS

mS

mS

16

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3.6 Temperature Calibration

replaced.

1.
meter. See Section 2.7.

MODE to select the

temperature measurement mode.
Press CAL to initiate the temperature

CA

C°

CAL

or

temperature.

6. Press ENTER

CO

meter will return to the measurement
mode.

press CAL to return to the measurement mode.

HOLD

ENTER

C°

C°

° C

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temperature which is input manually (rare).

4.1 With Automatic Temperature Compensation (ATC)

See Section .
See Section 5.6 – Normalization Temperature.

4.2 Without ATC (Manual Temperature Compensation)

See Section 3.6 – Temperature Calibration.

4.3 Taking Measurements

1.

sample.

display.

NOTE:

•

is removed.

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•

reference.

4.4 Using the Manual Ranging Function

successively for each measurement

Conductivity

Range ( CON 6 PLUS)

Auto-ranging Manual ranging: 0 - 20.00 uS/cm Manual ranging: 0 - 200.0 uS/cm

S

µ

TDS Range ( TDS 6 PLUS)

(using 0.5 TDS factor)

S

µ

mSmS

Manual ranging: 0 - 2000 uS/cmManual ranging: 0 - 20.00 mS/cmManual ranging: 0 - 200.0 mS/cm

S

µ

S

µ

NOTE:

•

Or to

•

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4.5 HOLD Function

HOLD while in measurement mode to freeze
the display.

1. HOLD

HO

appear on the display.

HOLD HO

measurement will resume.

NOTE:

•

•

HOLD

5.1 Advanced Setup Overview

HO

HOLD

ENTER

S

µ

S

µ

To enter advanced setup mode:

1.
Press MODE and then ON

Release the ON MODE

StUP CELC

Press or to select the desired advanced setup function.

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%

C°

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5.2 Selecting the Cell Constant

meter.

1.

Press or CELC
ENTER.

Press or

Press ENTER CELC
setup function.

Press or to move to the next setup
function or press CAL to exit to measurement
mode.

HOLD

ENTER

5.3 Automatic Calibration (CON 6 PLUS only)

3.3 Table 1). To use other

1.

Press or ACAL
ENTER.

Press or YES no

ACAL

setup function.
Press or to move to the next setup

function or press CAL to exit to the
measurement mode.

HOLD

ENTER

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5.4 Setting the TDS Factor ( TDS 6 PLUS only)

conductivity will increase. This relationship varies from salt to salt and

TDS.

See Section 13 – Calculating TDS Conversion Factor.

1.

HOLD

Press or tdS

ENTER

ENTER.
Press or to select the desired TDS

factor.
Press ENTER tdS

setup function.
Press or to move to the next setup

function or press CAL to exit to the
measurement mode.

5.5 Temperature Coefficient

See Section .

1.

Press or t.Co %
ENTER.

Press or

Press ENTER

t.Co %

HOLD

ENTER

%

%

%

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Press or to move to the next setup function or press CAL
to exit to the measurement mode.

5.6 Normalization Temperature

1.

Press or t.nr °C
ENTER.

Press or 25.0 °C 20.0

°C
Press ENTER t.nr

°C

Press or to move to the next setup
function or press CAL to exit to the
measurement mode.

5.7 Single-Point Calibration

1.

HOLD

ENTER

HOLD

ENTER

C°

C°

C°

Press or S.P.CA
ENTER.

Press or Yes no
Press ENTER S.P.CA

function.
Press or to move to the next setup function menu or press

CAL to exit to the measurement mode.

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5.8 Restore Factory Default Values

.

1.

Press or UrSt
ENTER.

Press or Yes no
Press ENTER

Yes

the measurement mode after initialization.

HOLD

ENTER

for extended periods.

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Problem Cause Solution

No display

Replace with new

LCD

Slow response

“Er1”

CON 6 PLUS
TDS 6 PLUS

“Er2”

Temperature

d) External noise

electric motor

solution incorrect solutions

value was not within the conductivity

entirely covers the

Switch to manual

Ensure that the
temperature is within

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Conductivity

(Resolution)

(Resolution)

Accuracy

Temperature
Resolution
Accuracy

Cell Constant

Temperature
Compensation

Temperature

used

CON 6

PLUS

TDS 6

PLUS

Normalization
Temperature

TDS factor

points

Auto standard

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FEATURES

Display Custom LCD

Power Requirements

transport.

in a liquid will conduct more current. Conductance derives from Ohms

a solution.

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specify conductance measurements.

cm).

The total dissolved solids scale approximates the ppm TDS in surface

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Conductivity

(µS/cm)

Conductivity and Temperature

Resistivity

(megohm-cm)

the usual practice is to reference the conductivity to a standard

temperature in advanced setup.

reference temperature.

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maximum accuracy.

frequency is at least monthly.

Factor = Actual TDS ÷ Actual Conductivity @ 25 °C

Actual TDS:

Tip:

Actual Conductivity:

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Tip:

Where:

1.

tc

100 x

=

CT1(T2 – 25) – CT2(T1 – 25)

t

c

CT2 – CT1

C

T1

C T

Conductivity at Temp 1 T

T1and CT1 (conductivity at T1).

CT2.

1

Temp 1

T1, and note the

T1 and T2 should

T2)

See Section .

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Description Code

Calibration Standards

To Register Your Meter

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