(3) Resetting the low temperature
alarm tolerance setting
This unique function alerts the operator when
the sensed temperature drops below a set limit.
Should this occur, an error message
will
be displayed, and the buzzer will sound
continuously. When the temperature returns
within the allowable range, the buzzer will stop.
The value is stored in the FM-202 as described
below:
To bypass this procedure, press the
button
three times.
EXAMPLE:
If the set temperature is 650
°
F and the low temperature
alarm is 100
°
F, the alarm will trip when the sensed
temperature goes below 550
°
F.
NOTE:
The threshold limits are: 30 – 150
°
C; 60 – 300
°
F.
If a value outside these limits should be entered, the
system will revert to the beginning of the mode, the
hundreds digit will flash, and the procedure must be
restarted.
Range of allowable low-temperature alarm
tolerance
For
°
C: 30 – 150
°
C
For
°
F: 60 – 300
°
F
1. When the station enters low-temperature
alarm tolerance setting mode, the hundreds
digit begun flashing. Enter and store the
value in the same manner as described on
page 7 “Changing the temperature setting.”
2. If you enter a value exceeding the allowable
range shown to the left, you will be brought
back to entering a value in the hundreds
digit. If this occurs, reenter a correct value.
3. Once the value is stored, the system will
automatically sequence to the resetting the
supervisor or operator control setting.
11
(4) Supervisor or operator control
setting
This mode allows control over the Tip ID data
entry to be assigned to a card-holder.
To change the control selection, proceed as
follows:
1. When the mode is entered, the display will
show
or
: Tip ID cannot be entered without
inserting the control card.
: Tip ID can be entered without
inserting the control card.
2. Pressing either the
or
button will
cause the display to alternate between
and
.
3. When the desired setting is displayed, select
by pressing
button.
The system will exit the parameter setting
mode and begin heater control.
It is now ready for normal operation.
NOTE:
Whether the card is inserted or not, process gate works.