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 107 of 132
Symptom
Possible Causes / Solutions
Transmitter LCD
screen dark
•
Transmitter not connected to power supply. Check
AC or DC connection.
•
Ribbon cable connecting from display board on
swing panel to motherboard is loose/disconnected.
•
Adjust the LCD brightness adjustment screw on the
back of the swing panel.
•
Thermal shutdown. Transmitter will only power up
once
the transmitter’s internal
temperature is below
70 °C.
Unchanging or
erroneous values
displayed
(Viscosity
parameter,
Temperature)
•
If both temperature and viscosity parameter
readings are not changing or seem far out of line:
•
Check for faulty connection between cable and
transducer. Check cable continuity (See Section 7.4.)
•
Transducer electronics may have failed.
•
If only the viscosity reading is out of line while the
temperature reading seems correct:
•
Check for faulty connection between cable and
transducer. Check cable continuity (See Section 7.4.)
•
If meets specifications listed 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.
•
Drive or detection circuitry in transducer may be
damaged.
•
Transducer / Probe may be damaged / bent.
Viscosity
parameter not
reading zero in air
•
Transducer not mounted securely.
•
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 for handling and cleaning.
•
Drive or detection circuitry in transducer may be
damaged.
•
Transducer / Probe may be damaged / bent.
