Fluid Components International ST51 User Manual
Page 15
ST51 MASS FLOW
FLUID COMPONENTS INTERNATIONAL LLC
This page is subject to proprietary rights statement on last page
15
Doc. No. 06EN003389 Rev. -
Step 3
Verify sensor element continuity and resistance.
Remove sensor element cable from the bottom of the control circuit assembly. Note that 2 of the wires have a red stripe and are
located closest to the interconnecting cable header. Using an ohm meter verify that resistance between the 2 red striped wires is
approximately 1100 ohms +/- 20. This resistance is temperature dependant. The resistance at 70 degrees F should be 1082 ohms.
Verify the resistance between the 2 natural colored wires are approximately the same.
FCI provides full in-house technical support. Additional technical representation is also provided by FCI field representatives. Before
contacting a field or in-house representative, please perform the troubleshooting techniques outlined in this document. If problems
persist, contact the FCI Customer Service department at 1-800-854-1993 or 1-760-744-6950.
If the instrument is to be returned to FCI, please obtain an Return Authorization. The form contains a declaration of decontamination
cleaning information that the instrument must comply with before it is shipped to FCI.
Sensor Element Cable