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execution, the self- tune function will be aborted.
4. During manual mode, all functions not related
with the control (wattmeter, independent timer,
"worked time", etc) continue to operate normally.
6.6 STAND by MODE
This operative mode also deactivates the automatic control
but forces the control output to zero.
In this mode the instrument operates as an indicator.
When the instrument is in stand by mode the upper display
will show the measured value while the lower display will
show alternately the set point and the message "St.bY".
Notes: 1. During stand by mode, the relative alarms are
disabled while the absolute alarms are operative
or not according to the ALxo (Alarm x enabling
during Stand-by mode) parameter setting.
2. If you set stand by mode during program
execution, the program will be aborted.
3. If you set stand by mode during self-tune
execution, the self- tune function will be aborted.
4. During stand by mode, all functions not related
with the control (wattmeter, independent timer,
"worked time", etc) continue to operate normally.
5. When the instrument is swapped from stand
by to auto modes, the instrument will start
automatically the alarm masking, the soft start
functions and the auto-tune (if programmed).
7. ERROR MESSAGES
7.1 OuT OF RANGE SIGNALS
The upper display shows the OVER-RANGE and UNDER-
RANGE conditions with the following indications:
Over-range
Under-range
The sensor break will be signalled as an out of range
Note: When an over-range or an under-range is detected,
the alarms operate as in presence of the maximum or
the minimum measurable value respectively.
To check the out of span Error condition, proceed as follows:
1. Check the input signal source and the connecting line.
2. Make sure that the input signal is in accordance with the
instrument configuration.
Otherwise, modify the input configuration (see section 4).
3. If no error is detected, send the instrument to your
supplier to be checked.
7.2 LIST OF POSSIbLE ERRORS
ErAT Fast Auto-tune cannot start. The measure value is too
close to the set point.
Push the
button in order to delete the error message.
ouLd Overload on the out 4
The messages shows that a short circuit is present on
the Out 4 when it is used as output or as a transmitter
power suply. When the short circuit disappears the
output restart to operate.
Ascon Tecnologic - KX Line - ENGINEERING MANUAL -Vr.4.0 PAG. 28
NoAt Auto-tune not finished within 12 hours.
ErEP Possible problem of the instrument memory.
The messages disappears automatically.
When the error continues, send the instrument to your
supplier.
RonE Possible problem of the firmware memory.
When this error is detected, send the instrument to
your supplier.
Errt Possible problem of the calibration memory.
When this error is detected, send the instrument to
your supplier.
8. GENERAL NOTES
8.1 PROPER uSE
Every possible use not described in this manual must be
consider as a improper use.
This instrument is in compliance with
requirements for electrical equipment for measurement,
control and laboratory use"; for this reason it coud not be
used as a safety equipment.
Whenever a failure or a malfunction of the control device
may cause dangerous situations for persons, thing or
animals, please remember that the plant has to be equipped
with additional safety devices.
Ascon Tecnologic S.r.l. and its legal representatives do not
assume any responsibility for any damage to people, things
or animals deriving from violation, wrong or improper use or
in any case not in compliance with the instrument's features.
8.2 wARRANTy
This product is under warranty against manufacturing
defects or faulty materials that are found within 18 months
from delivery date. The warranty is limited to repairs or to the
replacement of the instrument.
The tampering of the instrument or an improper use of the
product will bring about the immediate withdrawal of the
warranty's effects.
In the event of a faulty instrument, either within the period
of warranty, or further to its expiry, please contact our
sales department to obtain authorisation for sending the
instrument to our company.
The faulty product must be shipped to Ascon Tecnologic
with a detailed description of the faults found, without any
fees or charge for Ascon Tecnologic, except in the event of
alternative agreements.
8.3 MAINTENANCE
This instrument does not requires periodical recalibration
and it have no consumable parts so that no particular
maintenance is required.
Some times, a cleaning action is suggestible.
1. SWITCH THE EQUIPMENT OFF (power supply, relay
out, etc.).
2. Take the instrument out of its case.
3. Using a vacuum cleaner or a compressed air jet (max. 3
kg/cm
) remove all deposits of dust and dirt which may
2
be present on the case and on the internal circuits being
careful not to damage the electronic components.
4. To clean external plastic or rubber parts use only a cloth
EN 61010-1 "Safety
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