Conductivity/Temperature - Xylem EXO Series User Manual

Conductivity/Temperature

2.9
1.5
Sensor Overview
The EXO combination conductivity and temperature sensor should be installed in a sonde in nearly all sonde
applications. Not only will this sensor provide the most accurate and fastest response temperature data, but
it will also provide the best data for the use in temperature compensation for the other EXO probes. The
conductivity data is used to calculate salinity, specific conductance, and total dissolved solids, and compensate
for changes in density of water (as a function of temperature and salinity) in depth calculations if a depth
sensor is installed.
Conductivity Cell
599870
Temperature Thermistor
The temperature sensor uses a highly stable and aged
thermistor with extremely low-drift characteristics. The
Specifications
Conductivity
Default Units microSiemens/centimeter
Temperature
-5 to + 50°C
Operating
-20 to + 80°C
Storage
Range 0 to 200 mS/cm
0-100 mS/cm: ±0.5% of
reading or 0.001 mS/cm,
whichever is greater;
Accuracy
100-200 mS/cm: ±1% of
reading
T63<2 sec
Response
0.0001 to 0.01 mS/cm
Resolution
range-dependent
4-electrode nickel cell
Sensor Type
Temperature
Default Units °Celsius
Temperature
-5 to + 50°C
Operating
-20 to + 80°C
Storage
-5 to 35°C: ±0.01°C
Accuracy
35 to 50°C: ±0.05°C
Response T63<1 sec
Resolution 0.001°C
Thermistor
Sensor Type
(continued)
(see pg 12)
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13
pg