LaMotte ORP PockeTester Tracer User manual

Water Testing Leader Since 1919!
Tracer ORP PockeTesterTM
Code 1742
99 Washington Street
Melrose, MA 02176
Phone [phone]
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com

TRACER
ORP POCKETESTERTM • CODE 1742
Introduction ..................................................................................4
Specifications ...............................................................................4
Contents .......................................................................................5
Parts & Accessories .....................................................................6
Meter Description
Front Panel Description ............................................................ 5
TRACER Display ........................................................................ 5
Basic Operation
Powering the TRACER ............................................................... 6
Electrode Recognition ............................................................... 6
Automatic Calibration ................................................................ 6
Data Hold ................................................................................... 6
ORP Testing
Overview .................................................................................... 6
ORP Display .............................................................................. 6
Getting Started .......................................................................... 6
ORP Measurement .................................................................... 6
Storing Readings ...................................................................... 7
Recalling Stored Readings ....................................................... 7
Maintenance
Storage ...................................................................................... 8
Battery Replacement ................................................................. 8
Troubleshooting ............................................................................9
Replacing the Electrode ...............................................................9
Expand Your TRACER ..................................................................10
Warranty .......................................................................................11

4
INTRODUCTION
Congratulations on your purchase of the TRACER ORP PockeTester. The
advantages of the TRACER to the user include: Easy to use and maintain, high
accuracy, automatic calibration, and fast response. The TRACER has a 15-reading
memory storage. Careful use and maintenance will provide years of reliable service.
SPECIFICATIONS
Display Multifunction display with bar graph
Operating conditions 32 to 122°F (0 to 50°C) and < 80% RH
ORP Range Accuracy ± 999mV/ ±4mV
Measurement storage 15 readings (numbered) readings
Low battery indicator ‘BAT’ appears on the LCD
Power Four CR 2032 button batteries (see page 6)
Auto power off After 10 minutes of inactivity
CONTENTS
ORP TRACER PocketTester Kit, ±999mV Range Code 1742
Includes:
Sample Cup w/cap†
† not sold individually. See below.
PARTS & ACCESSORIES
ORP Replacement Electrode Code 1734
Weighted Stand w/Sample Cups (5) Code 1746
Sample Cups w/caps (24) Code 1745

5
METER DESCRIPTION
Front Panel Description
1. Battery compartment cover
2. LCD Display
3. MODE/HOLD button
4. CAL/RECALL button
5. ON/OFF button
6. Electrode Collar
7. Electrode Sensor
(Note: The Electrode storage
cap is not shown)
LCD Display
1. Reading
2. Units
3. Bargraph
4. Data Hold
5. Scale
6. Low Battery 1000
mv
0
500
144
BAT HOLD
1
2
3
4
5
6

6
BASIC OPERATION
Powering the TRACER
If the batteries are weak, the BAT indicator will appear on the LCD. 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 of inactivity.
Electrode Recognition
When the TRACER is turned on, it will recognize the type of electrode that is
connected and will display the appropriate unit of measure. An electrode must be
attached before turning the meter on.
Automatic Calibration
When the TRACER is turned on, it will enter the Automatic Calibration mode.
‘SELF’ and ‘CAL’ will appear on the display while calibration is in progress.
After the calibration is completed, the ‘SELF’ and ‘CAL’ display icons will
extinguish and both the main display and the bargraph will read ORP in mV.
Data Hold
Press the MODE/HOLD button to freeze the current reading. The HOLD display
icon will appear along with the held reading. The held reading will be stored in
the next 15-reading storage location. Press the MODE/HOLD button to return to
normal operation.
TESTING
Overview
ORP is the abbreviation for Oxidation Reduction Potential and represents the
oxidizing or reducing nature of a solution. The overall reactive tendency of a
solution can be determined from ORP measurements.
ORP Display
When the electrode is placed in a solution, the main display and bar graph will
indicate the ORP reading. Readings f ash until they have stabilized. The bar
graph is ‘center zero’, i.e. at 500mV there is no display. As the readings increase
from 0 to 1000 mV the bar will move from the left to the right.
Getting Started
1. Remove the cap from the bottom of the TRACER to expose the f at
surface electrode and reference junction.
2. White KCL crystals may be present in the cap. Rinse the crystals with tap
water.

7
ORP Measurement
1. Press the ON/OFF button to turn the meter on. Place the electrode ½” to
1” into the test sample .
2. Stir once and let the reading stabilize for 1 to 3 minutes. The main display
will indicate the ORP in numeric units from 0 to 1000mV. The bar graph
will also display the ORP value. As the ORP increases, the bar graph will
move from left to right.
3. Press the ON/OFF button to turn the meter off. Rinse the electrode with
distilled water. Replace cap.
Storing Readings
4. After the reading is made press the MODE/HOLD button to store the
current reading. The HOLD icon will be displayed. The storage location
number will also be displayed followed by the reading being stored.
5. Press the MODE/HOLD
button to return to normal
operation.
6. Repeat step 1 to store the
next reading.
7. If an attempt is made to store
more than 15 readings, the
stored readings (starting
with the f rst reading) will be
overwritten.
Recalling Stored Readings
NOTE: First ensure that the HOLD symbol is not displayed. If it is, exit the
HOLD function by pressing the MODE/HOLD button.
1. Press the CAL/RECALL button once and then press the MODE button
immediately after CAL is displayed; the location number (1 through 15)
will f ash. If the CAL mode is accidentally accessed (display f ashing),
press the CAL/RECALL button again to exit.
2. The last stored reading taken will be displayed f rst. To advance through
the stored readings, press the MODE/HOLD button. The location number
is displayed f rst, followed by the reading stored in that location.
3. To exit the recall mode, press the CAL/RECALL button and the TRAC-
ER will return to normal operation.
4. If the batteries are removed, any stored readings will be discarded.
1000
mv
0
500
144
HOLD
4

8
MAINTENANCE
Storage
To preserve electrode life keep the sponge in the protective cap soaked with tap
water. Dot not use deionized or distilled water.Cap TRACER when not in use.
Store vertically.
Battery Replacement
1. Twist off the battery compartment cap.
2. Hold the battery housing in place with one f nger. Remove the battery
carrier by pulling on the small tabs.
3. Replace the four CR2032 batteries. Observe polarity.
4. Replace the battery compartment cap.
NOTE: If the batteries are removed, stored data will be cleared. Factory
calibrations will be retained.

9
TROUBLESHOOTING
Problem Cause Action
Power on but no display Batteries Insert batteries
Batteries Verify correct polarity
Batteries Replace batteries
Unstable readings Electrode Immerse electrode more deeply
in sample
Electrode Condition electrode before f rst
use. Soak in tap water for 10
minutes.
Electrode Remove air bubbles caught
under electrode
Electrode Clean electrode
Electrode Replace electrode
Static charge Wiping electrode Rinse electrode and blot. Do not
wipe electrode
Same readings in
different samples
Cracked or broken
electrode
Replace electrode. Avoid
plunging electrode into bottom
of container and stir bars.
Display frozen HOLD function Press MODE or turn meter off
Button response Remove batteries (stored data
will be lost)
Steady “-1 ” display Wait Reading not stable yet
REPLACING THE ELECTRODE
The TRACER is shipped with an electrode attached. If the electrode needs to be
replaced, follow these steps for removing and connecting electrodes.
1. Turn meter off.
2. To remove the electrode, turn the collar counter-clockwise and remove it.
3. Gently rock the electrode from side to side, pulling it downwards, until it
disconnects from the meter.
4. To attach an electrode, carefully plug the electrode into the meter socket.
CAUTION: Take care to align the pins carefully. Bent or broken pins will
cause the meter to malfunction.
5. Tighten the electrode collar f rmly enough to make a good seal. A rubber
gasket will seal the electrode with the meter.

10
EXPAND YOUR TRACER
Interchangeable electrodes are available to convert the ORP TRACER to a Total
Chlorine TRACER or a pH TRACER.
Remember to ask for instructions and appropriate reagent or buffer tablets when
ordering Total Chlorine or pH electrodes.
Total Chlorine TRACER Electrode, 0.00-10.00 ppm
The Total Chlorine TRACER Electrode (Code 1732)
requires the use of TRACER TCL Tablets. Order Code
7044A-J (100 pack).
Code 1732
pH TRACER Electrode, 0.00 - 14.00 pH
The pH TRACER Electrode is used with pH 4.0, 7.0 and
10.0 buffers. Order using the following codes:
Code 1733
pH 4.0 Mini Buffer Tablets (100) Code 3983A-J
pH 7.0 Mini Buffer Tablets (100) Code 3984A-J
pH 10.0 Mini Buffer Tablets (100) Code 3985A-J

11
EXPAND YOUR TRACER
LaMotte Company warrants this instrument to be free of defects in parts and
workmanship for 1 year from the date of shipment and this probe be free of
defects in parts and workmanship for 6 months from the date of shipment. The
sender is responsible for shipping charges, freight, insurance and proper
packaging to prevent damage in transit This warranty does not apply to defects
resulting from action of the user such as misuse, improper wiring, operation
outside of specif cation, improper maintenance or repair, or unauthorized
modif cation. LaMotte Company specif cally disclaims any implied warranties
or merchantability or f tness for a speci f c purpose and will not be liable for
any direct, indirect, incidental or consequential damages. LaMotte
Company’s total liability is limited to repair or replacement of the product. The
warranty set forth above is inclusive and no other warranty, whether written
or oral, is expressed or implied.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
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