OSAKA OPERATING INSTRUCTIONS –COC 30- Page
6
“A1d”
– Probe 1 (TOP) alarms delay
“A2t” –
Probe 2 (FLOOR) alarm function mode as absolute or
relative
“A2L”
– Set probe 2 (FLOOR) minimum alarm
“A2
H” - Set probe 2 (FLOOR) maximum alarm
“HA2” –
Probe 2 (FLOOR) alarms differential
“A2d”
– Probe 2 (FLOOR) alarms delay
The alarms are always operative, if the maximum alarm is not
desired, simply set it to 999 and if the minimum alarm is not
desired set it to –99.
There is also an enabling delay when the instrument is
switched on, which can be set under the
“PO
d” parameter and
is only operative when the machine is switched on and the
temperature is in alarm conditions and is cancelled when the
temperature returns to non-alarm conditions.
Alarm activation takes place when disabling expires in the
following conditions, according to the type of alarm
programmed:
(NB:
in the following examples, the number of the alarm is
generally indicated with n)
“Ant” = Ab – ABSOLUTE ALARMS: The alarm is activated
when the value measured drops below the alarm threshold set
under parameter "AnL" or rises above the alarm threshold set
under the "AnH" parameter.
“Ant” = dE – RELATIVE ALARM : the alarm is activated when
the value measured drops below the [SPn - AnL] value, or
when it rises above the [SPn + AnH] value.
When an alarm is active, the ALARM led lights, a buzzer is
activated, the AUX output is activated if configured as an alarm
and the displays will show the alarm code alternated with the
temperate measured (the upper display for the alarms relating
to the TOP probe and the lower display for the alarms relating
to the FLOOR probe.
When activated, the buzzer can be muted by pressing any key.
Even when the buzzer is muted, the instrument indicates the
alarm with the flashing of the AL led and the display shows:
“A1L” -
in the case of a probe 1 (TOP) minimum alarm
“A1H” -
in the case of a probe 1 (TOP) maximum alarm
“A2L”
– in the case of a probe 2 (FLOOR) minimum alarm
“A2
H” - in the case of a probe 2 (FLOOR) maximum alarm.
In order to provide an external tone command (should the
internal one be weak), it is possible to use the AUX output as a
mutable alarm output (see AUX output operation).
Alarm operation is also influenced by the alarm differentials
(par. “HA1” and “HA2”), which operate as follows.
In the case of a minimum alarm, the alarm will activate when
the temperature value drops below the “AnL” alarm threshold
value and will deactivate when it rises above the [”AnL” +
"HAn"] value; in the case of a maximum alarm, the alarm will
activate when the temperature value rises above the “AnH”
alarm threshold and will deactivate when it drops below the
[”AnH” - "HAn"] value.
4.4 – OVEN LIGHT CONTROL
The LIGHT key can be used to activate/deactivate the LIGHT
output, the activation of the output is therefore indicated by the
LIGHT led.
When the controller is switched off, the output is in any case
switched off, but in standby mode the output can be switched
on or off. In normal switching on conditions or after a power
cut, the output returns to the state in which it was left.
4.5 – STEAMER AND STEAM INJECTION CONTROL
All the steam control parameters are contained in the
“
]
St”
grou
p.
When the instrument is in the ON status, it is possible to
activate/deactivate the steamer regulator using the STEAM
key. Activation is therefore indicated by the STEAM led.
Switching off of the regulator prevents the steam injection
control from functioning.
Output function can differ, according to the presence of the
STEAM temperature probe.
If the instrument is not fitted with a probe for the steamer (or
the probe is disabled using the “ESP” = OFF parameter), the
STEAM G output can be enabled/disabled directly using the
STEAM key.
If the instrument is fitted with a steamer probe and the steamer
probe is enabled (“ESP” = ON), the STEAM key can be used to
activate/deactivate the steamer regulator.
Switching on the output is therefore subordinate to the
ON/OFF regulator, which acts in heat mode according to the
temperature measured by the steamer probe, the steamer
temperature set
“SP
S” and the relative differential
“HS
S”.
If the probe is used and the measurement is lower than that
programmed under the
“SEt”
parameter, it will prevent the
function of the steam injection control.
If the controller is switched off, when it is switched back on, the
steamer control function reverts to the status in which it was
left.
In order to indicate all the possible conditions, the STEAM led
will operate as follows:
- OFF: steamer deactivated
- ON: steamer function activated and (when the steamer probe
is present) temperature above “Set” and therefore injection
possible.
- Flashing: steamer function on, but temperature below “Set”
and therefore injection off (only when the steamer probe is
present).
As mentioned previously, steam injection can only be activated
if the steamer control is activated and, if the instrument is fitted
with the steamer probe, the measurement of the latter is higher
than that set under the
“SE
t” par.
Once these conditions have been satisfied, the STEAM INJ.
Output is therefore activated manually by pressing the INJ. key
and remains active, even when the key is released, for the time
set under the
“Sl
t” par.