Endress+Hauser ria45 - Page 36

Commissioning RIA45
36 Endress+Hauser
Troubleshooting instructions and a list of all the error messages can be found in Section
Troubleshooting →  40.
Measuring range limits
Display
Display - - - - - - - - - - Measured value - - - - - - - - - - - - - - - Special points
to note
Status F F F F F
Range Underrange Measured value
displayed and
processed
Overrange Invalid
measured value
0 to 20 mA 0 to 22 mA > 22 mA Not calibrated Negative
currents are not
displayed or
calculated (value
remains at 0)
4 to 20 mA
(without Namur)
≤ 2 mA > 2 mA < 22 mA ≥ 22 mA Not calibrated
4 to 20 mA (as
per Namur)
≤ 2 mA
1)
> 3.6 mA...
≤ 3.8 mA
> 3.8 mA...
< 20.5 mA
≥ 20.5 mA...
< 21 mA
≥ 21 mA
2)
Not calibrated As per NAMUR
43
2 < x ≤ 3.6 mA
2)
+/- voltage ranges < -110% -110%...110% > 110% Not calibrated
Voltage ranges as
of 0 V
< -10% -10%...110% > 110% Not calibrated
No further calculation/further
calculation with fixed error value
Further
calculation in
math and as
min./max.
1 to 5 V voltage
range with
activated cable
open circuit
detection
≤ 0.8 V 1 to 5 V ≥ 5.2 V Not calibrated
Thermocouples Below the lower
range limit
2)
0 to 100% Above the upper
range limit
2)
Cable open
circuit detection
as of approx.
50 kΩ
1)
Resistance Below the lower
range limit
1)
0 to 100% Above the upper
range limit
1)
No further calculation/further
calculation with fixed error value
Further
calculation in
math and as
min./max.
No further calculation/further calculation with fixed
error value
1) cable open circuit
2) error at sensor
7.5.4 Saving diagnostic events/alarms and errors
Diagnostic events such as alarms and fault conditions are saved in the device as soon as a
new error occurs or the status of the device changes. The events saved are saved every 30
minutes to the nonvolatile device memory.
The device lists the following values in the ‘Diagnostics’ menu:
• Current device diagnosis
• Last device diagnosis
• Previous 5 diagnosis messages