Tech Note 611 Detail

Sensor value changes when another sensor is placed in the same solution.

Affected Products:

PS-2102 PASPORT pH Sensor
PS-2116 NOT A VALID PART NUMBER

Problem/Symptom:
The sensor value changes when another sensor is placed in the same solution.

PASCO Solution:

If two or more probes are simultaneously submerged in the same conductive liquid (such as tap water), then a ground loop may form between the probes. The following probes are known to be susceptible to ground loops:

To avoid a ground loop:

Creation Date: 08/27/2007
Last Modified: 01/15/2014
Mod Summary: