Failures And Troubleshooting - gefran KS Series Manual

Failure
(*) variable according to the type of failure
In case of failures or malfunctions, on Table 2 you can find the most common failures and the means of appropriate search:
Table 2: troubleshooting
Failure
The sensor does not feel pressure
The sensor is in alarm mode type
"HIGH"
The sensor is in alarm mode type
"LOW"
The diagram "A" (Fig. 1) shows a possible application: the sensor detects the pressure and transduces it in an analog electrical signal
proportional to the value of the measured value; the SRP / CS compares the signal with the one set as the alarm threshold: in case of
exceeding the threshold it shall disable the elements of pressure generation.
8
Current output

5.6 Failures and troubleshooting

Possible causes
Obstruction of pressure
channel
Fault on electronics output
stage
Bridge broken
Detachment of pins
Failure on primary element
Power supply cable /connector
broken
Sensor not connected
Sensor not powered
Bridge broken
85194D_MAN_Electrical Installation for Probes_KS and KS-SIL2 Series_11-2021_ENG
Voltage output
Means of research
1. Power down and remove the sensor
2. Verify eventual occlusion of the channel
under pressure. Clean any residues and
material caps
1. Power down and remove the sensor
2. Check for overheating of electronics hou-
sing. Remove the causes of overheating, wait
until it cools down and power the sensor.
3. Powered the probe again, if the problem
persists, you should send back the probe to
Factory for repair.
1. Power down and remove the sensor
2. Check that the power supply is connected.
If necessary, restore the power supply.
3. Check for continuity between the pins of
the connector and the power supply.
If necessary, replace the cable and the con-
nector.
4. Check if the power values are within the
specifications indicated in this manual. If
necessary, replace the power supply.
5. If the problem persists, you should send
back the probe to Factory for repair.