EVCO EC3533 User Manual
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EC 3-533E 4/95
CONFIGURATION
There are two levels of configuration (LEVEL 2 is protected by PASSWORD):
Level 1
Push
and
at the same time, for 4 seconds at least :
the symbol "PA" appear on the display
Push
or
to select the parameter to modify at LEVEL 1
Push
and
or
to modify the selected parameter.
Level 2
From LEVEL 1 push
or
to selected the parameter "PA"
Push
and
or
to set "-19"
Push
and
at the same time for 4 seconds at least :
the first parameter of LEVEL 2 will appear on the display.
Push
or
to selected the parameter to modify at LEVEL 2
Push
and
or
to modify the selected parameter.
How to leave "Configuration"
Push
and
at the same time for 4 seconds at least or wait for 50 seconds
without operating on the keyboard, or stop and restart the instrument.
USE
In normal operating conditions the instrument displays the value read by the probe. Push
to the display the actual
Setpoint value; the led "out" will flash.
To change the Setpoint value push
and
or
.
If the parameter rA5 has value 1, the Setpoint can not be modified. After changing, release the key
as last.
SIGNALS AND ALARMS
The led "out", when lighted, indicates that the output is activated; if it is flashing it indicates that the instrument is in
phase of delay-temporisation at the output.
"E0" flashing on the display and buzzer beeping intermittent means one of the following defects: probe-signal outside
the limits, defective probe or wrong connection (in case of not connected probe, the indication "E0" will appear if the
parameter is /0=30 (4-20 mA) and "0" if the parameter is /0=31 (0-20 mA)).
"E2" flashing on the display and buzzer beeping intermittent : failure of memorised configuration-data; try to switch the
power-supply off, and then, switch it on.
If the display indicates a proper value alternated to the signal "AL 1" (or "AL 2") and the buzzer beeps intermittent, it
means that the pressure read by the probe is off the limits previously set in parameters "AA1" and/or "Ab1".
MOUNTING
For a proper mounting, take note of the attached indications; be sure that the conditions of use (voltage of power-
supply, environment temperature, humidity) are inside the instrument working limits.
Do not overload the relay-output, keep inside the indicated limits.
Voltage at terminal 12 is not stabilized. If the transducer is powered by the instrument, it should be verified that in all
working conditions, especially for high output signal, the voltage on the transducer does not drop below the
minimum working value, in order to guarantee a correct measure.
WARNING: The instrument is not protected from overloads; so it is necessary to give the output the suitable
protections, besides that, according to the source of power-supply, find a protection able to limit the quantity of
current absorbed by the instrument in case of failure.