Endress+Hauser PROMAG 33, Руководство по эксплуатации

Страница: 92 / 126

Alarm message Code Cause Remedy
A: EPD ADJUSTMENT
VALUES MISSING
18 EPD is switched on, but no
adjustment has taken place. Carry out an EPD adjustment
as per page 73 ff.
A: EPD ADJUSTMENT
NOT POSSIBLE
19 EPD is switched on, but an
adjustment is not possible
because the conductivity
of the fluid is outside the
permissible range (too high
or too low). With such fluids, the EPD
function cannot be used!
A: EPD ADJUSTMENT
FULL = EMPTY
20
EPD is switched on, but an
alarm message is displayed
because the adjustment
values for full and empty
pipe are identical. Repeat the EPD adjustment
as per page 73 ff.
A: EPD ADJUSTMENT
FULL <=> EMPTY
21
EPD is switched on, but an
alarm message is displayed
because the adjustment
did not take place with full
or empty pipe. Repeat the EPD adjustment
as per page 73 ff.
A: EMPTY PIPE
DETECTED
22
The measuring tube is not
completely full or may be
empty. Check the process conditions
of your installation.
A: FLOW
TOO HIGH
23
The fluid velocity in the
measuring tube is larger than
12.5 m/s. The measuring
range of the transmitter
electronics is exceeded. Reduce the flow rate.
A: CURRENT OUTP.
TOO HIGH
24
The actual flow rate is too
high for the scaled full scale
value (I
max
= 25 mA resp.
20,5 mA with NAMUR).
1. Scale higher full scale values
(see page 49, 51) or
2. Reduce flow rate.
A: FREQ. OUTPUT
OVERFLOW
25
The actual flow rate is too
high for the scaled full scale
value (f
max
= approx. 163 %
of f
End
).
1. Scale a higher full scale value
(see page 55) or
2. Reduce flow rate.
A: BATCH TIME
EXCEEDED
26 The maximum time for a
batching cycle has been
exceeded. 1. Identify the cause for exceed-
ing the time provided, e.g. a
possible plant error (defective
or blocked valve).
2. It may be necessary to
increase the maximum
batching time or to switch off
the “MAX. BATCH TIME”
function (see page 65).
7 Trouble-shooting, Maintenance and Repairs Promag 33
92 Hauser