ViscoSite VL800 Viscometer
Operating Manual
ViscoSite VL800 Viscometer
Galvanic Applied Sciences, Inc.
Email: [email protected]
Phone: (978) 848--2701
Operating Manual Rev: 2.0E
Toll-Free: 1 (866) 252-8470
Page 108 of 132
Symptom
Possible Causes / Solutions
Viscosity
parameter displays
reading close to
but out of normal
range
•
Process temperature or other process variable may
have changed and is affecting viscosity. Investigate
all other process parameters for possible correlation.
•
If using viscosity parameter units OTHER than
cP x g/cm
3
, check the density input value (See
Section 5.8.1.)
•
Check for faulty connection between cable and
transducer. Perform a continuity check (See Section
7.4.)
•
If meets specifications in Section 7.4:
•
Material deposit on transducer probe preventing
transducer contact with fresh process material. If
sensor is pulled for inspection, follow directions
in Section 6.2 for handling and cleaning.
•
Transducer / Probe may be damaged / bent.
Highly unstable
viscosity parameter
reading (in air or in
process material)
•
Power cord is not properly grounded.
•
Check for loose wiring at terminal screws on the
transducer.
•
Check for loose wiring at the terminal screws on
transmitter.
•
Improper grounding between transducer probe and
electronics (check for ground loop).
•
Electromagnetic interference (Refer to Section 3.5)
•
Unstable mounting. Retighten bolts using stagger
technique (Section 3.5.1)
•
Excessive pipe vibrations (Refer to Section 3.4.2.)
•
Excessively high material flow rate (turbulent flow)
Transducer Ringing
/ Excessive
Vibration of
Transducer
•
Check for faulty connection between the transducer
cable and the transducer. Perform a continuity check
(See Section 7.4).
•
Transducer probe is bent / damaged.
Current / Voltage of
Analog Output
doesn’t
Proportionally
Correspond to
Displayed
Parameter Value
•
Verify output min and max settings input to
ViscoSite transmitter for parameter associated with
output. Ensure min and max values have been
entered taking the display units into account (see
Section 5.7.1).
•
Verify input settings on system receiving the analog
output signal match output settings on ViscoSite
analog output.
Table 7.1: ViscoSite Troubleshooting Guide -- Commonly Observed Issues
