Geosense IPI-H-1, Инструкция по эксплуатации

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V1.0 September 2017
7.0 MAINTENANCE
The Geosense
®
IPI is a maintenance free device for most applications. This is
because it is intended for sub - surface installation and would normally be suspended
in access tubes within boreholes or attached to structures.
8.0 TROUBLESHOOTING
In almost all cases, a fluctuating reading is a sign of a faulty signal from the sensor.
The fault could be in either the sensor, the connecting cable, any switch boxes, the
digital interface, or the readout. The best way to fault find an individual sensor is to
isolate it from all others in a string and any connections. Where possible begin fault
finding from the sensor or end of a string of sensors.
An additional resistance diagnostic check routines are also included to help identify
problems with cables.
Fault finding assistance from the Digital Interface manual: -
Typically any failure or error in communication is due to the RS485 sensor being read
and not the RS485—RS232/USB interface. However the interface can be checked by
sending the command “ menu ” when it is first powered up. See the interface manual
for assistance with this procedure.
Fault Possible cause Remedy
No Connection to the Interface Incorrect wiring Check wiring diagram for the
RS232 or USB side.
No Connection to the Interface
Incorrect Settings - see the
Interface manual
Settings on readout / logger
Baud rate: 115200
Data Bits: 8
Stop Bits: 1
Parity: None
No Connection to a Sensor Incorrect wiring Check wiring diagram for the
RS485 side.
No Connection to a Sensor Incorrect Sensor Settings Interface only supports baud
rates of 9600 (RS485 side)
No Connection to a number of
Sensors
Maximum Current Limited
Exceeded
Supply RS485 sensor(s)
externally
No Connection to a Sensor Incorrect Command Check RS485 Sensor manual for
correct command structure