YSI, Incorporated
Model 30/30M
1
SECTION 1
INTRODUCTION
The YSI Model 30 Handheld Salinity, Conductivity, & Temperature System is a rugged, micro-
processor based, digital meter with an attached YSI four electrode conductivity cell. The Model 30
is designed for use in field, lab, and process control applications and is available with cable lengths
of either 10, 25 or 50 feet. The body of the probe has been manufactured with stainless steel to add
rugged durability and sinking weight. The large Liquid Crystal Display (LCD) is easy to read and is
equipped with a back-light for use in dark or poorly lighted areas.
The Model 30's micro-processor allows the system to be easily calibrated with the press of a few
keys. Additionally, the micro-processor performs a self-diagnostic routine each time the instrument
is turned on. The self-diagnostic routine provides you with useful information about the cell
constant, function of the instrument circuitry, and the quality of the readings you obtain. For a list of
these diagnostic features, see Section 9, Troubleshooting.
The system simultaneously displays temperature (in
o
C), along with one of the following
parameters: conductivity; temperature compensated conductivity; (in
µ
S/cm or mS/cm), and salinity
(in parts per thousand [ppt]). Though calibration is NOT required, a single calibration will adjust
the instrument, regardless of which parameter you wish to read. You can switch back and forth
from salinity, conductivity, and temperature compensated conductivity with a single push of the
MODE key.
A probe storage chamber is built into the instrument. This chamber provides a convenient place to
store the probe when the system is not in use, and provides protection for the electrodes within the
probe.
The instrument is powered by six AA-size alkaline batteries. A new set of alkaline batteries will
provide approximately 100 hours of continuous operation. When batteries need to be replaced, the
LCD will display a "LO BAT" message.
The YSI Model 30 instrument case is waterproof (rated to IP65). You can operate your Model 30 in
a steady rain without damage to the instrument.
The YSI Model 30M contains all the features of the Model 30, but also has internal memory for
saving 50 sets of data for later on screen recall and meets CE requirements for EMC Directive
89/336/EEC. For simplicity, this manual will refer to the Model 30 when discussing functions that
apply to both the Model 30 AND the Model 30M. References to the Model 30M indicate functions
that apply to the Model 30M ONLY.
Summary of Contents for 30
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Page 6: ...Introduction Section 1 YSI Incorporated Model 30 30M 2 ...
Page 16: ...Saving Data Section 4 YSI Incorporated Model 30 30M 12 ...
Page 24: ...Advanced Setup Section 6 YSI Incorporated Model 30 30M 20 ...
Page 28: ...Principles of Operation Section 7 YSI Incorporated Model 30 30M 24 ...
Page 38: ...Warranty and Repair Section 10 YSI Incorporated Model 30 30M 34 ...
Page 40: ...Warranty and Repair Section 10 YSI Incorporated Model 30 30M 36 ...
Page 42: ...Accessories and Replacement Parts Appendix B YSI Incorporated Model 30 30M 38 ...
Page 48: ...Conversion Chart Appendix D YSI Incorporated Model 30 30M 44 ...