KROHNE TIDALFLUX IFM 4110 PF EN - Manual (Page 29)

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→ ADC GAIN
Set gain of A/D converter
•
AUTO
•
10
•
30
•
100 Select with
↑ or ↓ key
Press
↵ key to change to subfunction “SPEC. FILT.”.
→ SPEC. FILT.
Activate special filter for noise/interference suppression?
Please note information and examples given in Sect. 6.7.
•
NO Press
↵ key to change to Fct. 3.06 “APPLICAT.”)
•
YES Press
↵ key to change to subfunction :LIMIT VAL.”).
→ LIMIT VAL.
Set limit value for noise/interference suppression
(appears only when “YES” is selected under “SPEC. FILT.”, see above)
Setting range: 01-90 PERCENT of full-scale range Q
100%
See Fct. 3.02, subfunction “FULL SCALE”
Press
↵ key to change to subfunction “LIMIT CNT.”.
→ LIMIT CNT.
Totalizer active when exceeding limit value (see “LIMIT VAL.” above)
(appears only when “YES” is selected under “SPEC. FILT.”)
Setting range: 001-250
Press
↵ key to return to Fct. 3.06 “APPLICAT.”.
3.07 HARDWARE Determine hardware functions
→ TERM.A1
Terminal A1
•
PULSOUTP.
•
STATUSOUTP.
Select with
↑ key.
Press
↵ key to transfer to subfunction “SELFCHECK”.
→ SELFCHECK
Carry out self check? See Section 5.18.
•
YES
•
NO (testing different parameters)
Press
↵ key to transfer to subfunction “FIELD CURRENT”.
→ FIELDCUR.
Determine field current
•
INTERNAL
•
EXTERNAL
For partly filled flowmeters this option must be set to “INTERNAL” !
Press
↵ key to return to Fct. 3.07 “HARDWARE”.
4.5 Error messages in measuring mode
The following list contains all errors which may occur during flow measurement. Errors are displayed when “YES” is
selected in Fct. 1.04 DISPLAY, subfunction “DISP.MSG.”.
Error message
Description of error Elimination of error
LINE INT. Power failure Note:
no counting during power failure
Cancel error in RESET/QUIT. menu
Reset totalizer if necessary.
OVERFLOW I
or
OVERFL. I2 Current output overranged.
(flow rate > measuring range) Check instrument parameters and
correct if necessary. After elimination of
the cause, the error message is
cancelled automatically.
See sections 6.4 and 6.7.
OVERFLOW P
or
OVERFL. P2 Pulse output P
or
Pulse output range P2 exceeded
(flow rate > modulation range) Check instrument parameters and
correct if necessary. After elimination of
the cause, the error message is
cancelled automatically.
See Sections 6.4 and 6.7.
I SHORT
or
I2 SHORT Current output I or I2 externally shorted or
load < 15
Ω
.
Check mA loop and increase load using
additional resistor if necessary. After
increasing load, the error message is
cancelled automatically.
I OPEN
or
I2 OPEN mA loop interrupted by current output I or
I2 or load > 500
Ω
.
Check mA loop and reduce load to
500
Ω
if necessary. After reducing load,
the error message is cancelled
automatically.
TOTALIZER Overflow of internal totalizer Delete error message in RESET/QUIT
menu, see sect. 4.6.
ADC Analog/digital converter range exceeded Set Fct. 3.06, subfunction ADC GAIN
to “10”. See sections 6.4 and 6.7.
If error message does not disappear,
consult factory.
ADC-PARAM. Check sum error Replace ADC printed circuit board