SOIL
& WATER TEMPERATURE PROBES
5600-0010,
5600-0030, 5600-0455
The
5600-0010 Soil and Water Temperature probe
has the same features as the 5600-0030 (below)
with the additional feature of a linear output.
The 5600-0030 Soil and Water Temperature Probe
is designed for long-term environments.
5600-0010
FEATURES
The 5600-0010 is a three-wire sensor
with connections to +5, GND and signal
input. The linear output eliminates the
need to program a complex equation into
the data recorder to convert the voltage
to a temperature. The conversion from
volts to degrees is done using a simple
linear equation.
5600-0010
SPECIFICATIONS Specifications subject to
change without notice
Accuracy
-5
to 45°C +0.1°C
Cable
15 foot length standard (other lengths
available)
ORDERING
5600-0010-2
Temperature Sensor, Soil/Water with linear
output, 15 ft. cable
Helpful Hints
Connect resistor from Voltage reference
(5V or less) to analog input channel. Connect
probe from analog input channel to ground.
5600-0030
FEATURES
While not designed for deepwater immersion,
the 5600-0030 is water-tight for water temperature
measurements in bogs, wetlands,
wells, lakes, reservoirs, and rivers.
Output is not linear. The equation to convert
voltage to temperature is supplied with
the unit.
Water resistant
UV resistant
Rugged
High accuracy
High sensitivity
5600-0030
SPECIFICATIONS Specifications subject to
change without notice
Accuracy
0
to 60 °C 0.1 °C, -40 to 60 °C
0.2 °C
Cable
15
foot length standard (other lengths
available)
ORDERING
5600-0030-1
Temperature Sensor, Soil/Water, non linear output, 15 ft. cable
Helpful
Hints
Connect resistor from Voltage reference
(5V or less) to analog input channel. Connect
probe from analog input channel to ground.
THE 5600-0455 SOIL & WATER TEMPERATURE PROBE CONNECTS DIRECTLY TO ALL SUTRON DATALOGGERS • Rugged, versatile
• Low cost • High accuracy
• Long cables available • Multiplexers available • Connects directly to all Sutron dataloggers (and various others from different manufacturers).
• Precision thermistor in a water-resistant casing & a standard 3m polyurethane cable - tough, UV-resistant, totally waterproof.• Operates over the range -40°C to +70°C.ACCURACYOverall accuracy is comparable to that of a platinum resistance thermometer.
In practice, the accuracy depends on a combination of the thermistor’s interchangeability specification, the precision of the bridge resistors and the linearisation error.
In the worst case, these errors might produce a total error of ±0.3°C over the range -20°C to +48°C for the 107 probe and ±0.4°C over the range -3°C to +92°C for the 108 probe. (Note that these are the worst case errors; generally, the overall accuracy is better than ±0.2°C.)A major error component is the thermistor specification, given as ±0.1°C over the range 0 to +70°C, and ±0.3°C (worst case) at -40°C.
Although the thermistor interchangeability is typically better than this, the majority of the error can be determined with a single point calibration. This error can then be compensated for by entering an offset into the appropriate instruction.
LINEARISATION ERRORS (STANDARD INSTRUCTION)
RANGE °C ERROR
-40°C to +56°C ±1.0°C -38°C to +52°C ±0.5°C -23°C to +48°C ±0.1°C
BRIDGE RESISTORS
Both 0.02% tolerance, 5ppm temperature coefficient
MAXIMUM NUMBER OF PROBES
One datalogger excitation channel will drive several hundred probes. Each probe only requires a single-ended input. The practical limitation is the number of lead wires that can be inserted into a single excitation terminal (approximately 10).
