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Intelligent Valve Monitor
Diagnoses:
The diagnostic tools aims to help users detect possible failures, ensuring the quality of operation of the actuator
assembly - valve, preventing problems of production, loss of lots or even accidents.
Maintenance Diagnoses:
The sensor features powerful diagnostic tools that monitors the actuator opening and closing time and the
actuator set status - valve to know if preventive maintenance is necessary, i.e. maintenance that occurs before
the set fails, having reached a pre-user-defined level, considered sufficient to generate fatigue in components
of the set.
Valve (Opening and Closing) Cycle Time
Diagnosis:
This is a powerful tool that allows the sensor to
memorize the average time of opening and closing the
valve and generate a fault alarm if the preset time has
elapsed. This function is enabled by software, the bit 2
output and through dipswitches 1-4 you can configure
how many cycles the sensor learn the average time of
opening and closing of the valve.
Valve Cycles Average Time:
It is the sum of the time that the valve completes a full
cycle (opening and closing of the valve) divided by the
number of cycles programmed to learn the sensor this
time. If the sensor is programmed to learn the average
time in cycles 4 and the sum of the times for each cycle
is equal to 60 minutes, this means that the average
time of each cycle is 15 minutes. After learning cycles,
if the average time saved is exceeded, the sensor will
indicate this anomaly.
Note: The more dense the fluid controlled by the valve,
the greater will be the number of cycles for learning
the average time.
Time Tolerance:
It is possible to configure through the dipswitches 5 to 8 in a tolerance time before the fault indication can be
from 10% to 40% of the average time saved by sensor.
Dipswitch
1
2
3
4
1
0
0
0
0
1
0
0
0
0
1
0
0
0
0
1
x
x
x
x
x
x
x
x
x
x
x
x
Notes:
- Case: 0000xxxx ou xxxx0000 => Disables intelligence function automatically.
- "1" - switches on ON. / "0" - switches on OFF.
Possible causes for failure indication are:
- Stuck valve - valve with high air leakage.
8
5
6
7
8
x
x
x
x
Learns with 4 actuation cycles
x
x
x
x
Learns with 8 actuation cycles
x
x
x
x
Learns with 16 actuation cycles
x
x
x
x
Learns with 32 actuation cycles
Tolerance of 10% in time before recognising
intelligence failure
1
0
0
0
Tolerance of 20% in time before recognising
0
1
0
0
intelligence failure
Tolerance of 30% in time before recognising
0
0
1
0
intelligence failure
* Actuation bit of the valve opening and closing time
diagnosis.
* The failure green led flashes , indicating failure in the
mean time of opening and closing the valve.
Dipswitches Function
Sense
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