SGS SLTD 100 Salinity Instruction Manual

Thank you for choosing the SGS Instruments SLTD 100 Salinity / TDS /
Temperature meter. This manual will provide you the necessary information
for correct operation. Please read it carefully before using the meter. SGS
Instruments cannot accept any responsibility for damage or malfunction of
the sensor due to improper use. The information in this manual is subject
to change, without notice, as improvements or additions to the product are
made by SGS Instruments.

If you need additional technical information or have questions about
the SLTD 100, please contact the SGS Instruments Tech Support
department, by telephone Monday through Friday 7:30 AM to 3:00 PM
Arizona Time at 1.866.972.7258, by fax at 1.480.557.0099 or by email at
[e-mail].

Warranty

The SLTD 100 is warranted for two years against defects in workmanship
and materials when used for its intended purpose and maintained according
to instructions. This warranty is limited to repair or replacement free of
charge for the two year warranty period. Damages due to accident, misuse,
water penetration of the handheld enclosure, tampering or lack of prescribed
maintenance are not covered under this limited warranty.

If warranty service is required, you will need the date of purchase, serial
number and the nature of the failure when contacting SGS Instruments. If

the meter needs to be returned to SGS Instruments, rst obtain a Returned

Goods Authorization number from the SGS Customer Service / Tech Support
Department and then send the meter with the shipping costs prepaid. When
shipping the instrument, make sure it is properly packaged for complete
protection; include your contact information and a description of what is
wrong with your meter. If the repair is not covered by the warranty, you

will be notied of the cost to repair (or upgrade) the meter; conrmation is

needed prior to any repairs being made.

SLTD 100 Salinity / TDS / Temperature Meter

Instruction Manual

This limited warranty is the sole and complete warranty for SGS
Instruments, and shall be limited to the cost of the meter. In no
event shall SGS Instruments be liable for incidental or consequential
damages.

General Information

Each SLTD 100 consists of the handheld meter enclosure (with 2 Duracell
Copper Top AA batteries included, but not pre-installed) connected to the
Toroidal Sensor probe by a 4 foot cable (when the batteries need to be

replaced, use only AA Duracell Copper Top batteries; use of other brands

may void the warranty). Remove the instrument from the case and examine

carefully; if any damage has occurred during shipment, immediately notify
SGS Instruments.

The SLTD 100 is designed for continually measuring Salinity, Total Dissolved

Solids (TDS), and Temperature in aqueous solutions in accordance with the

technical information provided in this manual. This is accomplished through
our patented Toroidal technology, which insures precise readings without the
need for the user to ever calibrate the meter.

Operation

Press the power button to turn the meter on. For taking measurements, once

the power is on (the unit starts in Salt mode), submerge the probe into the

solution being tested. In order to get a reading, the entire black capsule in
the top of the probe needs to be submerged. Pressing the mode button will

move the display through all ve modes (Salt, TDS, Net TDS, Temperature
in Fahrenheit and Celsius).

1.

Salt Mode: When the Salt light is illuminated, the meter is reading

the salinity in Parts per Million (PPM). Due to the sensitivity of the meter,

movements of the probe in solution may cause the reading to vary, depending

on the ow of the water and the temperature.In a solution of less than 500
PPM salinity (TDS 625 PPM), the meter will read zero.

2.

TDS Mode: When the meter is in “TDS” mode, the indicator light on

the meter enclosure will be solid. At start up, the SLTD 100 will revert to

the last mode measured in its previous use. TDS (Total Dissolved Solids)
is an extrapolated number, based on the conductivity of the water. The

conductivity of the water changes with temperature and as solids are added.
It is important to monitor the hardness of pool water, as well as salts. Liquid
chlorine contains salt, and over time this salt can build up to levels that need
to be managed. The TDS reading will help in managing these chemical
levels, but is not the only valid test that should be used. In low conductivity

solutions where the TDS is less than 625 PPM, the SLTD 100 will read
zero.