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9 Maintenance and fault rectification
9.1 Maintain
When the instrument is used properly, no special maintenance is
required in normal operation.
In some applications, product buildup on the separating diaphragms
can influence the measuring result. Depending on the sensor and
application, take precautions to ensure that heavy buildup, and
especially a hardening thereof, is avoided.
9.2 Rectify malfunctions
The operator of the system is responsible for taking suitable measures
to rectify malfunctions.
DPT10 offers maximum reliability. Nevertheless, faults can occur
during operation. These may be caused by the following, e.g.:
l Sensor
l Process
l Voltage supply
l Signal processing
The first measures to be taken are to check the output signals as well
as to evaluate the error messages via the indicating and adjustment
module. The procedure is described below. Further comprehensive
diagnostics can be carried out on a PC with the software PACTware
and the suitable DTM. In many cases, the causes can be determined
this way and faults rectified.
? When an additional instrument is connected, the H1 segment fails.
l Max. supply current of the segment coupler exceeded
à Measure the current consumption, reduce size of segment
? Measured value on the indicating and adjustment module does not
correspond to the value in the PLC
l The menu item "Display - Display value" is not set to "AI-Out"
à Check values and correct, if necessary
? Instrument does not appear during connection setup
l Incorrect termination
à Check termination at the beginning and end points of the bus
and terminate, if necessary, according to the specification
l Instrument not connected to the segment
à Check and correct
Maintenance
Reaction when malfunc-
tions occur
Causes of malfunction
Fault rectification
Checking Foundation
Fieldbus
68 Differential pressure transmitter DPT10 - metal measuring diaphragm • F oundation Fieldbus
9 Maintenance and fault rectification
37246-EN-100120
- Foundation Fieldbus 1
- Contents 2
- 1 About this document 4
- 2 For your safety 5
- 2.6 CE conformity 6
- 3 Product description 7
- 3.2 Principle of operation 8
- 37246-EN-100120 10
- 3.3 Operation 12
- 4 Mounting 14
- 4.3 Measurement setup flow 16
- 4.4 Measurement setup level 18
- 4.8 External housing 29
- 4.9 Mounting control 29
- 5 Connecting to power supply 30
- 5.2 Connection procedure 31
- 5.3 Single chamber housing 34
- 1 2 5 6 7 8 39
- 5.8 Switch on phase 40
- 6.1 Short description 42
- 6.3 Adjustment system 44
- 6.4 Parameter description 45
- Linearisation curve 50
- Copy sensor data 52
- Copy sensor data? 52
- 6.5 Menu schematic 54
- Basic setting level 55
- Diagnostics 55
- 8 Set up 59
- 8.3 Level measurement 61
- 9.1 Maintain 68
- 9.2 Rectify malfunctions 68
- 9.3 Instrument repair 69
- 10 Dismounting 70
- 11 Supplement 71
- 11.3 Dimensions 86
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