Routine Maintenance - j&a 3030 Operator's Manual

ROUTINE MAINTENANCE

3030 not working? - see the trouble shooting guide on page 9
Occasionally clean top and bottom heat plates with a solvent such
as J&A Superspray and a clean, dry cloth.
Regularly check that the temperature between the heat plates is the
same as is reading on the display. To measure the inter-plate
temperature you will require a digital thermometer fitted with a thin
thermocouple.
PROCEDURE
Set the dwell time to 60 seconds.
Place a thermocouple between the plates and pull down head.
The thermometer reading will rapidly rise and then level out.
If the reading is still rising at the end of the 60 second dwell
period simply repeat until it does level out. The temperature
indicated on the thermometer should be within +/- 3˚C of the
set temperature. If not, calibrate the machine as below.
CALIBRATION
Carry out the test above to determine if machine needs calibrating.
In order to access the 'temperature adjust' mode a four digit
password must be entered to match the password set by the
manufacturer at "0101". Change the display by pressing
the button until the following screen appears:
COUNT nnnn
PASSWORD 0000<
The '<' symbol indicates that the right hand two of the four digits
may be adjusted by using the
Then press the button to change the display to:
COUNT nnnn
PASSWORD >0001
Indicating that the left hand two of the four digits may
be adjusted using the
Enter the password 0101 and wait for about 10 seconds.
The display will then change to:
COUNT nnnn
PASSWORD XXXX
The button may now be used to advance to a previously
unavailable screen showing:
GAIN ADJUST
nnnC
This screen is displaying the temperature between the plates and
can be adjusted to read the same as the thermocouple by using the
and buttons.
Once the temperature has been calibrated the 'Gain adjust' screen
may be disabled again by simply reverting to the password screen
and altering the displayed digits to be anything other then the
password (0101).
Representation
of display screen
and buttons.
Representation
of display screen
and buttons.
Representation
of display screen
Representation
of display screen
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