Endress+Hauser Proline Promass 83, Руководство по эксплуатации

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9 Trouble-shooting Proline Promass 83 FOUNDATION Fieldbus
80 Hauser
700 Device status message (FF):
Empty pipe detected –
Err. No. 700
Local display:
P EMPTY PIPE
! # 700
[.....] Quality = UNCERTAIN OUT. QUALITY = UNCERTAIN Cause:
The fluid density is outside the upper or
lower limit values set for the empty pipe
detection (EPD).
Causes:
– Air in the measuring tube
– Partly filled measuring tube
Remedy:
1. Ensure that there is no gas content
in the process liquid.
2. Adapt the upper and lower limit
values for empty pipe detection to
the current process conditions.
– FF: Transducer Block
→
Para-
meter “EPD - Low Value” resp.
“EPD - High Value”
– Local display:
BASIC FUNCTIONS
→
PROCESS PARAMETER
→
EPD
PARAMETER
→
EPD VALUE
LOW resp. EPD VALUE HIGH
[.....] Substatus = Non specific OUT. SUBSTATUS = Non specific
– –
–
701 Device status message (FF):
Current of the measuring tube
to high – Err. No. 701
Local display:
P EXC. CURR. LIM
! # 701
[.....] Quality = UNCERTAIN OUT. QUALITY = UNCERTAIN Cause:
The maximum current value for the
measuring tube exciter coils has been
reached, since certain process fluid cha-
racteristics are extreme, e.g. high gas or
solid content.
The instrument continues to work
correctly.
Remedy:
In particular with outgassing fluids
and/or increased gas content, the follo-
wing measures are recommended to
increase system pressure:
1.
Install the instrument at the outlet
side of a pump.
2. Install the instrument at the lowest
point of an ascending pipeline.
3. Install a flow restriction, e.g. redu-
cer or orifice, downstream from the
instrument.
[.....] Substatus = Non specific OUT. SUBSTATUS = Non specific
– –
–
702 Device status message (FF):
Frequency control not stable
due the process fluid –
Err. No. 702
Local display:
P FLUID INHOM.
! # 702
[.....] Quality = UNCERTAIN OUT. QUALITY = UNCERTAIN Cause:
Frequency control is not stable, due to
inhomogeneous process fluid, e.g. gas
or solid content.
Remedy:
In particular with outgassing fluids
and/or increased gas content, the follo-
wing measures are recommended to
increase system pressure:
1.
Install the instrument at the outlet
side of a pump.
2. Install the instrument at the lowest
point of an ascending pipeline.
3. Install a flow restriction, e.g. redu-
cer or orifice, downstream from the
instrument
[.....] Substatus = Non specific OUT. SUBSTATUS = Non specific
– –
–
No. Device status message FF
(Diag. - Act. Syst. Cond.)
Message on local display
Transducer block
Error messages
[.....] = process variable (e.g. mass
flow, volume flow, ...)
Analog Input Funct. Block
Error messages Cause/remedy