7ML19985FT63 SITRANS LVS100/200 – INSTRUCTION MANUAL Page EN-23
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English
Vibration amplitude diagnosis
NAMUR module (IEC 60947-5-6) and and 8/16 mA or 4 to 20 mA model
Measurement quality is related to the vibration amplitude of the fork. The diagnostic LED
indicates the quality of the vibration being sent to the LVS200 electronics.
• Diagnostic LED off: measurement quality is good. The vibration amplitude is strong.
• Diagnostic LED blinking: measurement quality is poor and vibration amplitude is
decreasing as fork becomes encrusted. When this happens, set the sensitivity
switch to decreased sensitivity.
• Diagnostic LED on: vibration has stopped and fork is fully encrusted with material.
Current output setting
8/16 mA
The chart below illustrates the output current when:
•Fork is clean
• Fork is encrusted: weak vibration amplitude is shown
• Fork is fully encrusted and vibration has stopped.
Diagnosis
Setting
D Off
I = 16 mA I = 8 mA
I = 16 mA I = 8 mA
I = 8 mA I = 16 mA
D On I = 20 mA I = 6 mA
Signal
output LED
Diagnosis
LED
8/16 or 4 to 20 mA model
Test button
diagnostic LED
sensitivity adjustment:
B = factory setting
A = decreased sensitivity
B
A
filling or emptying
output setting
signal output LED
Sensor switches at high level
Fail-safe function will default to full signal
Sensor switches at low level
Fail-safe function will default to empty signal
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