Tech Note 1061 Detail

SPARK SLS takes a long time to start or restart.

Affected Products:

PS-2008 SPARK Science Learning System

Problem/Symptom:
SPARK SLS takes a long time to start or restart.

PASCO Solution:

The PS-2112 PASPORT Magnetic Field Sensor , PS-2162 PASPORT 2-Axis Magnetic Field Sensor, and CI-6520A Magnetic Field Sensor must be connected to powered interfaces for at least 240 seconds near room temperature (25 C) and tared in a EM-8652 Zero Gauss Chamber for them to report values that are within the specified accuracies.

This happens because current starts flowing through the hall-effect probes when the sensors are connected to a powered interface, heating them up, and increasing their resistance.

In addition to warm up, the PASCO Magnetic Field Sensor - CI-6520A may experience drift in the tare.

Creation Date: 01/15/2010
Last Modified: 04/6/2010
Mod Summary: