10
SinterPro
Furnace Operator’s Manual
Powering On The Furnace
• Make sure both 3 Amp button circuit breakers are
fully pressed in.
• At the right rear corner of the chassis is the Power
switch.
Depress it fully towards the “1” position to
turn on the power.
• The red numeric digital display should illuminate.
• The
green “Heat” LED
should light for one second,
followed by the
yellow “Alarm 1” LED
, followed by
the
red “Alarm 2” LED
. An audible “click” should be
heard one second later; this is the muffle power safety
contactor energizing. If the lift is in the full up position the
display should stop on
the word “IDLE”, and the green
“Heat” LED should be flickering
.
IMPORTANT: YOU SHOULD HEAR THE COOLING FANS
RUNNING WHENEVER THE OVEN IS POWERED ON.
IF YOU DO NOT HEAR THE FAN (LOCATED UNDER
THE BLACK PLASTIC GRILL AT THE RIGHT LOWER
SIDE OF THE CHASSIS), CALL FOR SERVICE. DO NOT
OPERATE THE OVEN UNLESS THE FAN IS RUNNING.
THE FAN FILTER SHOULD BE CLEANED WEEKLY (SEE
MAINTENANCE SECTION). THE COMPUTER MONITORS
THE FAN SPEED AND WILL GENERATE ERROR 10
FOR A SLOW FAN, AND ERROR 11 FOR A STALLED OR
INOPERATIVE FAN.
• Press the
Down Arrow button
to lower the lift. Note
the indentation in the top surface of the firing platform.
This indentation is to assist you in centering the sintering
trays.
NOTE: If the Furnace is not running a program, the stage
LED(s) on the left side of the temperature display will be
lit all the time, when a program is running the current
Stage LED will be BLINKING. To end a program, press
the START/STOP button once.
To Set Temperature Scale
The furnace is pre-set in degrees Celsius.
1. Turn the power switch on. If the furnace is already on,
be sure it is in the idle mode – (no program is running).
The chamber temperature appears on the Main Display
and the °C light goes on.
2.
To change temperature scale:
Press
Up Arrow
button
and
Down Arrow button
at the same time. The
degree light switches to the opposite temperature scale
and the displayed value switches to those units.
To Turn The “Beep” On And Off
When a program is completed, 20 “beeps” sound every 15
minutes to inform the operator that the Sintering cycle is
completed.
1. Be sure the oven is in the Standby MODE – (no
program us running).
2. Press the
Up Arrow key
and
PROGRAM SELECT
simultaneously to display the status of the “beep.”
“ON” indicates the beep is active. “OFF” indicates the
beep is inactive.
3. Use either of the
Up Arrow
or
Down Arrow
keys to
turn the “beeps” on or off.
4. To return to the Standby mode, wait 7 seconds or
press STOP / START twice
. (If STOP / START is
pressed once, the current PROGRAM cycle starts.)
Muffle Standby Heat
The muffle insulation will readily take on moisture from the
air unless the muffle temperature is elevated above room
temperature. This moisture will rapidly turn to steam and
expand quickly enough to crack the insulation - unless
some standby heat is applied whenever a firing program is
not running.
When the oven is not in use
, always remove all firing trays
and press the up arrow button to raise the lift platform to the
top. When the lift platform reaches the top position (and the
muffle temperature is below 70°C) the front panel display
will read “IDLE”. Whenever you see the word “IDLE” a small
amount of heat (27 Watts) is being applied to keep the
muffle at or in the vicinity of 48°C (120°F). The green heater
LED will blink to indicate Idle heating.
If the furnace has been sitting in Standby with no user
interaction for an hour, the platform will automatically
close by itself, and apply the IDLE power to the heaters.
If the furnace power has been turned off on a weekend it
is important to allow the furnace muffle be warmed up in
the IDLE Mode with the platform up for at least a couple of
hours to bake out any moisture before running a sintering
program. Rate Rise of 10˚C/minute to 500˚C, Hold .5 hours.
If the lift platform is not fully up, and the muffle is cooler
than 70°C, the display will read “LO”, and no power will be
applied to the heaters.
