OSAKA – USER MANUAL – F 500 / F 500-RS – V.1 – Page 1
In the event of unrecognised (and therefore still ongoing) HACCP
alarms, the instrument displays the message “HAC” alternating
with the normal display.
Within the parameter the data will be displayed sequentially as the
SET key is repeatedly pressed.
The alarm can be deleted by holding down the Down key for more
than 5 seconds while one of the data of the alarm is displayed.
Its deletion is confirmed by the display indicating “---” for approx. 1
sec.
Similarly the value of the “H.dL” parameter can be reset by holding
down the Down key for more than 5 seconds while the value is
displayed.
However, if desired, all alarms can be deleted immediately by:
– holding down the STAND-BY key for 5 sec if parameter “t.UF” =
6
– holding down the DOWN key for 5 sec if parameter “t.Fb” = 6
– by a digital input if the relevant parameter “i.xF” = 11
– by the parameter reset function (at the password prompt r.P enter
-48).
4.11.1 - HACCP TEMPERATURE ALARMS
Via the parameters “A.r1” (for alarms H1 and L1) and “Ar.2” (for
alarms H2 and L2) it is possible to enable recording of temperature
alarms as HACCP alarms.
The same parameters can also be used to define the minimum
alarm duration that will cause the alarm to be recorded as an
HACCP alarm.
If the alarm duration is shorter than the programmed duration, the
alarm is not recorded.
If the parameters are set as = oF , recording is disabled.
For each recorded temperature alarm, the following data are stored:
- Alarm type (A. = H1 or L1 or H2 or L2)
- Alarm start time HACCP ( y. =year, M. =month, d. =day, h.
=hours, n. =minutes)
- HACCP alarm duration ( E. = hours, e. = minutes)
- Critical temp. reached (max. peak if Hi alarm or min. peak if Lo
alarm)
Example of HACCP maximum temperature alarm H1
1 = configured alarm start (in this case with A.t1 = oF)
2 = HACCP alarm recording start
3 = alarm end
Note: If there is a power failure during a temperature alarm, the
instrument records the duration of the alarm up until the moment the
power failure began.
In order to capture correct information on the temperature
conditions which the user wishes to monitor, it is recommended to
set a black-out alarm and if necessary disable the on-startup alarm
delays (parameters A.P1 and A.P2) so that if the alarm is still
ongoing when the power returns it is recorded as a new alarm on
the return of power.
4.11.2 - HACCP POWER FAILURE (BLACK-OUT) ALARMS
Is recorded only if the power failure exceeds the value set in
parameter “A.bo”.
If “A.bo” = oF the black-out alarm is never recorded.
For each recorded black-out alarm, the following data are stored:
- Alarm type (A. = bo)
- Start time ( y. =year, M. =month, d. =day, h. =hours, n. =minutes)
- Black-out duration ( E. = hours, e. = minutes)
– Temp. relative to the probe configured for temperature alarm 1
(see parameter “A.y1”) measured at end of black-out (if available; if
unavailable the display shows “---”).
Example of HACCP black-out alarm
1 = power failure
2 = min. power failure duration that will enable HACCP black-out
alarm recording
3 = return of power (alarm end)
4.11.3 - HACCP ALARMS FROM DIGITAL INPUTS
This is recorded only if the generic alarm (AL) from a digital input
configured in modes 4 or 5 continues for longer than the time set in
parameter “A.di”.
If “A.di” = oF, an alarm from a digital input is never recorded.
For each recorded alarm from a digital input, the following data are
stored:
- Alarm type (A. = AL)
- Start time ( y. =year, M. =month, d. =day, h. =hours, n. =minutes)
- Alarm duration ( E. = hours, e. = minutes)
– Temp. relative to the probe configured for temperature alarm 1
(see parameter “A.y1”) measured at end of black-out (if available; if
unavailable the display shows “---”).
Note: If the power fails during an alarm from a digital input, the
instrument records the duration of the alarm up until the moment the
power failure began.
4.12 - FUNCTIONING OF KEYS “STAND-BY” AND
“DOWN/AUX”
All the parameters concerning keyboard functions are contained in
the group “
]
tS”.
Two of the instrument keys, in addition to their normal functions,
can be configured to operate other commands.
The STAND-BY key function can be defined by the parameter
“t.UF” while the DOWN/AUX key function can be defined by the
parameter “t.Fb”
Both the parameters have the same possibilities and can be
configured for the following functions:
=oF - The key carries out no function.
= 1 - Pressing the key for at least 1 second, it is possible to
enable/disable the auxiliary output if configured (“o.Fo”=2).
If are programmed activation / deactivation events of the auxiliary
output by Real Time Clock the action of the keys force output status
until the next event.
= 2 - Pressing the key for at least 1 second, it is possible to select
the mode Economic/Normal in rotation. Once selection has been
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