K-Patents DD-23 - Manual (Page 31)

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7.3 In operation logic
IN OPERATION
button pressed
yes
yes
yes
yes
no
no
wash done
no
no
no
Only
instrument?
Washing?
IN OPER.
pressed?
Critical
malfunction?
WAIT
(LIGHT BLINKING)
IN OPERATION
(LIGHT ON, RELAYS
10, 11 ACTIVE)
Critical
malfunction?
NOT IN OPERATION
(LIGHT OFF)
yes
Figure 7.3 Operation logic
Whether an instrument is in op-
eration depends on the opera-
tor’s commands and the instru-
ment’s diagnostics. The decision
is carried out as outlined in Fig-
ure 7.3
An instrument can be in one of
three different states: IN OPER-
ATION, NOT IN OPERATION, and
WAIT. When the instrument is IN
OPERATION, it is used in decid-
ing whether the solid content is
in the safe level (see Section 7.1).
When the instrument is NOT IN
OPERATION or WAIT states, it is
not used.
The WAIT state occurs when the
operator has requested the in-
strument to come into operation
by pressing the button, but the
instrument is in the wash cycle
and will come into operation af-
ter the wash cycle is completed.
The actual state can be seen from
the
IN OPERATION light. If the light
is on, the instrument is IN OPER-
ATION. If the light is off, the in-
strument is NOT IN OPERATION,
and if the light is blinking it is in
the WAIT state.
The default state of an instru-
ment is to be NOT IN OPERA-
TION. It can be taken into op-
eration by pressing the
IN OP-
ERATION button unless there is
a critical malfunction (see Sec-
tion 6.2).
An instrument automatically drops
into NOT IN OPERATION if there
is a critical malfunction. It may also be dropped by the
IN OPERATION button unless it
is the only instrument used.