LaMotte Tracer 1749 User manual
TRACER
Conductivity/TDS/Salinity/Temperature/Meter
EC/TDS/SAL
CODE 1749
POCKETESTERTM
NEW!
Direct Reading
TDS and Salt!
WARNING! This set contains chemicals
that may be harmful if misused. Read
cautions on individual containers
carefully. Not to be used by children
except under adult supervision
TRACER
EC/TDS/SAL POCKETESTERTM • CODE 1749
TABLE OF CONTENTS
Introduction .............................. 4
Specifications ............................. 4
Contents ............................... 5
Parts & Accessories .......................... 5
Meter Description
Front Panel Description ..................... 6
TRACER Display ........................ 6
Basic Operation
Powering the TRACER ..................... 7
Electrode Recognition ...................... 7
Automatic Calibration...................... 7
TDS Conversion Ratio ......................7
To Change the TDS Conversion Ration .............7
Changing the Displayed Tempreature Units ...........8
Data Hold ............................. 8
Auto-Power Off ..........................8
Low Battery Indicator .......................8
Testing
Getting Started .......................... 9
Changing the Measurement Function ..............9
Measurement ........................... 10
Measuring the TDS of Soil ..................10-11
Storing Readings .........................11
Recalling Stored Readings ....................11
Calibration .............................. 12
Operational Matrix ........................14-15
Maintenance
Storage ............................. 16
Battery Replacement ...................... 16
Electrode Care ......................... 16
Replacing the Electrode .....................16
Troubleshooting ........................... 18
Warranty ............................... 19
3
INTRODUCTION
Congratulations on your purchase of the EC/TDS/SAL (Electro
Conductivity/Total Dissolved Solids/Salinity) TRACER PockeTester.
The TRACER is a revolutionary, first of its kind measurement device
that offers direct reading of conductivity, TDS and salinity with one
electrode. Careful use and maintenance will provide years of reliable
service.
SPECIFICATIONS
Display 2000 count LCD with Bar Graph
Conductivity Range 0 to 199.9 µS
200 to 1999 µS
2.00 to 19.99 mS
TDS Range 0 to 9,990 ppm
(variable ratio)
Salinity Range 0 to 9,990 ppm Salt
(fixed ratio of 0.5)
TDS Ratio 0.4 to 1.0, adjustable
Salinity Ratio 0.5 fixed
Conductivity ATC 2.0% per °C
Temperature Range 32.0 to 149.0 °F, 0.0 to 65.0 °C
Temperature Resolution 0.1 up to 99.9, 1>100
Temperature Accuracy ±1.8°F, 1°C (from 32 to 122°F, 0 to 50°C)
± 5.4°F, 3°C (from 122 to 194°F, 50 to 90°C)
Conductivity ATC
Range 32.0°F to 140°F, (0.0°C to 60.0°C)
Accuracy Conductivity: ± 2% FS
TDS:±2%FS
Salinity: ± 2% FS
Measurement Storage 25 numbered readings
Low Battery Indication ‘BAT’ appears on the display
Power Four CR 2032 Lithium Ion batteries
Auto Power Off After 10 minutes of no button presses
Operating Conditions 23 to 122° F, –5 to 50° C
Dimensions 1.6 X 7.4 X 1.6 inches, 40 X 187 X 40 mm
Weight 3.1 oz, 87 g
4
CONTENTS
EC/TDS/SAL TRACER PockeTester Kit Code 1749
Includes:
Conductivity Standard, 12,880 µS Code 6317-G
Sample Cup w/cap †
† Not sold individually. See below.
PARTS & ACCESSORIES
EC/TDS/SAL Replacement Electrode Code 1765
Weighted Stand w/Sample Cups (5) Code 1746
Sample Cups w/caps (24) Code 1745
Conductivity Standard, 84 µS Code 6312-G
Conductivity Standard, 1413 µS Code 6354-G
Conductivity Standard, 12,880 µS Code 6317-G
5
METER DESCRIPTION
Front Panel Description
1. Battery compartment cap
2. LCD Display
3. MODE/HOLD button -
change mode, hold data, store data
4. CAL/RECALL button -
calibration, change temperature
units, recall data
5. ON/OFF button
6. Electrode Collar
7. Electrode
(Note: The Electrode cap is not shown)
TRACER Display
1. Bar graph reading
2. Measurement reading
3. BAT (low battery) indicator
4. Temperature display
5. Measurement units
6. Calibration range indicators
7. HOLD indicator
6
1
2
3
4
5
6
7
10
20
12
t
m
pp mg/L
m
uS
0
0
2
5
10
7
°C
°F
HOLD
RENEW
pH%
M HL
8.8.8
8.8.8.8
BAT
2
4
1
63
7
5
BASIC OPERATION
Powering the TRACER
The Tracer uses four CR2032 Lithium Ion batteries. If the batteries are
weak, the BAT indicator will appear on the display. Press the ON/OFF
key to turn the TRACER on or off. The auto power off feature will shut
the TRACER off automatically after 10 minutes after the last button
push.
Automatic Calibration
When the TRACER is turned on, it will enter the Automatic
Calibration mode. SELF and CAL will appear while the calibration is in
progress. After the calibration is completed, the SELF and CAL display
icons will extinguish.
TDS Conversion Ratio
The TDS value is determined by multiplying the conductivity
measurement by a known conversion ratio factor. The meter allows the
selection of a conversion ratio factor in the range of 0.4 to 1.0. The
selected ratio will vary with application but is typically set between 0.5
and 0.7. In the salinity mode, the ratio is fixed at 0.5. The stored ratio
factor will briefly appear in the lower temperature display when the
meter is first turned on or when changing the measurement function to
TDS.
To Change the TDS Conversion Ratio:
1. Turn the TRACER on.
2. Press and release the CAL/RECALL button
twice. The stored ratio will appear in the
display.
3. Press the MODE/HOLD button to change
the ratio value in steps of 0.1.
4. When the desired ratio is displayed, press
and release the CAL/RECALL button to
store the value and return to the normal
mode.
5. If no buttons are pressed for 5 seconds, the
meter will return to the measurement mode.
7
Changing the Displayed Temperature Units
To change the displayed temperature units between °F or °C:
1. With the TRACER off, press and hold the CAL/RECALL button.
2. With the CAL/RECALL button pressed, momentarily press the
ON/OFF button. When SELF CAL appears in the display, release
the CAL/RECALL button. The TRACER will return to the
operational mode with the temperature displayed in the new units.
Data Hold
Press the MODE/HOLD button to freeze the current reading. The
HOLD icon will appear, the reading will be stored. Press the
MODE/HOLD key to return to normal operation.
Auto Power Off
The auto-power off feature will automatically shut the meter off 10
minutes after the last button was pressed. To disable the auto-off feature:
1. Press the ON/OFF button to turn the meter on.
2. Wait for the SELF display screen to appear. This is the second
screen to appear after turning on the meter. IMPORTANT: Review
the instructions for the next 3 steps before proceeding. Step 3 must
be followed immediately by Step 4.
3. Press CAL/RECALL button once.
4. Press MODE/HOLD and ON/OFF buttons simultaneously. Quickly
release buttons.
5. oFF will be displayed on the screen. Watch carefully. It will
disappear quickly.
6. The auto power off feature will be restored automatically when the
meter is turned off. Auto-off is the default function when the meter
is turned on.
Low Battery Indicator
The “BAT” indicator will be displayed when the batteries become
weak. Refer to the maintenance section for battery replacement
information
8
TESTING
Getting Started
1. Remove the cap from the bottom of the TRACER to expose the
electrode.
2. Before the first use, rinse the electrode in deionized water and dry.
3. For best results, calibrate for conductivity with a standard in the
expected range of the sample. For maximum accuracy calibrate from
low conductivity value standards to high conductivity value
standards.
Changing the Measurement Function
The meter can be set to measure Conductivity, TDS (ppm), TDS
(mg/L) or Salinity. To change the mode:
1. Turn the TRACER on.
2. Press and hold the MODE/HOLD button for 2 seconds. The display
will begin to scroll through the units.
µS or mS (Conductivity)
ppm (TDS)
ppm (Salinity “S”)
3. Release the MODE/HOLD key when the desired mode is displayed.
4. Note that the "HOLD" function can not be on when changing
functions.
9
Measurement
1. Fill a sample cup to the 20 mL line with the test sample. Sample
depth must be greater than or equal to 1.5 inches.
2. Immerse the TRACER electrode in the sample. Make sure the
electrode is completely submersed.
3. Press the ON/OFF button. (8888 and then
SELF CAL will appear in the display during the
initial diagnostics).
4. Press and hold the MODE/HOLD button to scroll
to the desired measurement mode.
5. Slowly stir the sample with the TRACER to
remove air bubbles.
6. The meter will autorange to the proper range
and the reading will be displayed.
7. Rinse the electrode in distilled water. Replace
the cap.
Measuring the TDS of Soil
1. Fill a 50 mL beaker with the soil sample. Tap the beaker lightly on a
hard surface to remove trapped air. Remove excess soil from the
surface.
2. Empty the soil into a 250 mL
wide-mouth flask.
3. Add 100 mL of distilled
water. Stopper and shake
vigorously.
4. Wait 30 minute. (Shake the
flask vigorously three or four
times during this period.)
5. Filter the contents of the
flask. Collect the filtrate in a
beaker.
6. Rinse the electrode with
distilled or deionized water to
remove impurities.
10
EC/TDS/SAL
ON
OFF
MODE
CAL
100.9
72.3 °F
Conductivity TDS (ppm)
m
PP
Salinity
m
PP
4.01
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