Tech Note 1075 Detail

The thermocline sensor places large demand on battery supply of attached interfaces.

Affected Products:

CI-6731 Thermocline Sensor
PS-2151 PASPORT Thermocline Sensor

Problem/Symptom:
The thermocline sensor places large demand on battery supply of attached interfaces.

PASCO Solution:

Due to the long cord length with the probe for the Thermocline Sensors, these sensors require a large amount of current from the interfaces to which they are connected.

  1. Use of the PASPORT Thermocline Sensor (PS-2151) with the Xplorer (PS-2000) is not recommended. If this interface must be used, please only plug in the sensor to the top of the Xplorer, just before data collection. Please remove the sensor as quickly as possible after data collection. If traveling into the field with the Xplorer (PS-2000) and the Thermocline Sensor (PS-2151), please bring replacement batteries to assure the completion of your project. Another solution is to use an external USB charging device. The USB cable that attaches the PS-2000 to the computer, can be used to connect to one of these chargers to provide additional run time.
  2. Use of the PASPORT Thermocline Sensor (PS-2151) with the Xplorer GLX (PS-2002) leads to a shorter field run time than with many other sensors. To extend the run time for the GLX in the field, please minimize the time that the Thermocline Sensor (PS-2151) is attached to the GLX. If you are going to be collecting data over a long period of time, please set the GLX to sleep between collecting data points by keeping the sampling period (time between collection of data points) to 30 s or more. The GLX will turn off the power to the sensor between samples, thus conserving power. If you need longer sampling runs than the above procedures will provide, Tech Note 1073 provides the power specifications for the Xplorer GLX to find an external field source of power for the GLX.
  3. Use of the PASPORT Thermocline Sensor (PS-2151) with the SPARK SLS (PS-2008) leads to a shorter field run time than with many other sensors. To extend the run time for the SPARK SLS in the field, please minimize the time that the Thermocline Sensor (PS-2151) is attached to the SPARK SLS. If you need longer sampling runs than the above procedures will provide, Tech Note 1072 provides the power specifications for an external power source for the SPARK SLS.
  4. When using the ScienceWorkshop Thermocline Sensor (CI-6731) with the ScienceWorkshop 500 interface (CI-6400), please take additional batteries into the field. Please disconnect the sensor from the interface when data is not being actively collected. This will preserve the battery power within the 500 Interface. If additional power is needed for extended data collection runs, Tech Note 1077 provides the power specifications to find an external power source for the ScienceWorkshop 500.

Creation Date: 03/23/2010
Last Modified: 03/29/2010
Mod Summary: