14
Electromagnetic Flowmeter COPA-XT
4.5
Maintenance / Repair
The flowmeter primary is essentially maintenance free. A yearly
check should be conducted to monitor the ambient conditions
(ventilation, humidity), integrity of the process connections
gaskets, cable connectors and cover screws, operational
integrity of the supply power, lightning protection and the
ground connections.
All repairs and maintenance work should be performed by
qualified Customer Service personnel.
Observe the (Hazardous Material Information) note
if the flowmeter primary is to be returned to the
ABB Automation Products factory for repair!
!
Notes for Opening
the Housing
The followings notes must be considered when the
housing of the converter is to be opened:
•
All connections must be voltage free.
•
The EMC protection is limited when the housing is
opened.
4.6
Rotating the Display
First unscrew the housing cover. The display plate is held in
place by 4 Phillips head screws (Fig. 26).
After loosening the screws the display can be pulled off. The
rotated display should be carefully reinstalled and the 4 screws
carefully retightened. Check that the gaskets are properly
seated. Only then is Protection Class IP 67 assured.
!
General Note:
If the forward and reverse flow direction indicators in the
display do not agree with the actual flow direction,
change “Normal” to ‘Inverse” in the submenu Operating
Mode.
4.7
Flowmeter Primary Replacement Parts List
If repairs to the liner, electrodes or the magnet coils are
required, the flowmeter primary should be returned to the ABB
Automation Products factory. Please see the note Hazardous
Material Information.
5.
Operation, Data Entry and
Configuration
5.1
Display Indications
After the supply power is turned on, the model number of the
converter is displayed in the 1st line and the software version
number and its revision level in the 2nd line. Subsequently,
the process information from the flowmeter is displayed.
The present flow direction is indicated in the first line of the
display (
→
F for forward or
←
R for reverse) together with the
instantaneous flow rate value in percent or in direct reading
engineering units. The totalizer value, with max. seven digits,
for the present flow direction is displayed in the second line
followed by the units.
Independent of the pulse factor, the totalizer value always
indicates the actual measure flow quantity with its correspond-
ing units. This display configuration is defined as process infor-
mation in the following text.
The totalizer value for the other flow direction can be displayed
by pressing the STEP or DATA key.
1st Line
Instantaneous forward flow rate
2nd Line
Forward totalizer value
1st Line
Instantaneous forward flow rate
2nd Line
Reverse totalizer value (multiplex operation)
1st Line
Instantaneous forward flow rate
2nd Line
Totalizer overflow.
→
F and m3 blink.
A totalizer overflow occurs whenever the totalizer value
reaches 9,999,999 units. When the totalizer value in one flow
direction exceeds 9,999,999 units, the flow direction symbol
(
→
F or
←
R) and the units (e.g. m3) blink in the 2nd line. The
totalizer can register a max. of 250 overflows software wise.
The overflow indication can be reset separately for each flow
direction by pressing ENTER.
F
98.14 l/s
→
F
12.0000 m3
→
F
98.14 l/s
→
R
516.0000m3
→
F
70.01 l/s
→
F
10230
m3
→
