DENTSPLY Miniglaze/2 Owner's manual

1
Owner & Operator's Manual
Model No: Voltage:
9490950 115V 50/60Hz
9490952 220V 50/60Hz
DESCRIPTION PAGE
Safety...................................................................................................2
Features...............................................................................................3
Furnace Description............................................................................4
Installation............................................................................................5
Control Description..............................................................................6
Setup & Maintenance..........................................................................7
Operating Instructions.........................................................................8
Specifications.......................................................................................9
Trouble Shooting..................................................................................10
Accessories.........................................................................................11
Product Service...................................................................................11
Warranty..............................................................................................Back
Miniglaze/2
PORCELAIN STAINING AND GLAZING FURNACE
®

2
• If equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment
may be impaired.
• Never operate furnace in close proximity to combustible materials or place materials on top of the furnace.
• The furnace must be electrically grounded to a three wire electrical outlet or receptacle. The electrical service
provided must be a dedicated line of the proper size according to local electrical codes.
• Disconnect the line cord before attempting to service the furnace.
• Do not touch ClearVue™ door/window with fingers during operation.
• Do not operate the furnace controls with tongs or other tools; the tongs will damage the control switches and/or
knobs.
• Do not use solvents or liquid cleaners on the control panel; they will dissolve silkscreen or damage plastic parts.
• Do not place firing trays or other hot objects directly in front of the furnace; they will melt the pyrometer.
OSHA AND CALIFORNIA PROPOSITION 65:
MUFFLE DUST EXPOSURE
In keeping with the policy of DENTSPLY Ceramco to build safe products, comply with all National and State
statutes and keep you, the valued customer informed; the services of a Certified Industrial Hygienist firm were
employed to test and evaluate the lab operator’s exposure to respirable refractory ceramic fiber (RCF) and
crystobalite (a form of crystalline silica) present in the furnace muffle.
The findings of this test revealed that levels of exposure during the normal operation of this equipment, as
outlined in the operator’s manual, were far less than the Permissible Exposure Limit set by the Federal Govern-
ment.
When it becomes necessary to replace the muffle, the person doing this work is recommended to wear a HEPA
filter respirator and protective gloves as a precautionary matter.
Seal used muffle in a plastic bag and dispose of in accordance with local, state and Federal regulations.
Because this product and many similar products on the market today contain crystalline silica and ceramic
fibers, it is necessary under the statutes of California Proposition 65 that DENTSPLY Ceramco include the
following statement:
“This product contains substance(s) known to the State of California to cause cancer.”
Material Safety Data Sheets for RCF materials supplied upon request.
SAFETY:
- Alternating current Courant alternatif
- On (Supply) Marche (alimentation)
- Off (Supply) Arrêt (alimentation)
- Caution, Hot Surface Attention, surface chaude
- Protective Conductor Terminal Borne de masse, châssis
- Caution Attention
SYMBOL TABLE
O
I

3
FEATURES:
•1100°C (2010°F) Max. Temperature: 200°C (400°F) Min. Temperature
•Adjustable Heat Rate: 10-100°C/M (18-180°F/M)
•Small Foot Print: 6-1/4W x 6D x 11-1/2H
•Visual /Audio Indicator: Lights or Sounds When At Temperature
•Easy Temperature Calibration
•Fast Cooling Fiber Muffle

4
FURNACE DESCRIPTION
Clear
Vue Door
Muffle
Shelf
Temperature Rise Control Dial
Tone/Light
Switch
Calibration
Screw
Indicating
Light
Temperature Control Dial
Temperature
Indicator
On/Off
Switch
Muffle Power Light
Miniglaze/2 Figure 1
MINIGLAZE/2
ON
OFF LIGHT
TONE
CALIBRATION
RATE
Ney®

5
INSTALLATION INSTRUCTIONS
UNPACKING
• Carefully unpack and remove the Miniglaze/2 from its shipping carton.
• Save the carton and other packing material for future use in transporting the Miniglaze/2.
• Shipping damage should be reported to the carrier as soon as detected.
The Miniglaze/2 shipping carton contains the following:
• One Miniglaze/2 Complete With Power Cord
• Owner & Operator's Manual
• ClearVue™ Door
INSTALLATION:
• Remove all packing material from in and around the furnace. The furnace should be located at least 15cm (6")
away from walls, shelves and heat sensitive materials.
• The furnace should not be located directly under shelves or other airflow restrictions.
• Before inserting door, check that the muffle is free of debris.
• Connect the power cord to a power circuit or receptacle with an overcurrent protection (circuit breaker or fuse)
rating of at least 15 Amps for 120V (10Amps for 230V). This circuit should only supply the furnace. Never use
an extension cord.

6
CONTROL DESCRIPTIONS
• Temperature Indicator: (1) The temperature on the Miniglaze/2 indicates temperature within ±10°C (±18°F). the
indicator has both Fahrenheit and Centigrade graduations.
• Temperature Control Dial: (2) The temperature control dial has both Fahrenheit and Centigrade graduations. Dial
markings range from 150°C (300°F) to 1093°C (2000°F) in increments of 25° Fahrenheit and
Centigrade.
• Tone/Light Switch: (3) The tone/light switch provides a choice between a tone with a light, or a light only to indicate
when the set temperature is attained. When the switch is in the LIGHT position, a red light (7) will
be illuminated on the temperature control dial when the muffle reaches a temperature 10°C below
set point. When the switch is in the TONE position the red light is accompanied by a tone.
• Muffle Power Light: (4) A red light located above the temperature indicator signals when power is being applied
to the muffle. It will blink intermittently during temperature rise due to the automatic temperature
control.
• Temperature Rise Control Dial: (5) The Miniglaze/2 is designed to provide an approximate straight line
temperature rise. Complete counterclockwise adjustment ("S", Slow setting) will give an
approximate 10°C (18°F) per minute temperature rise. Complete clockwise adjustment ("F", Fast
setting") will give an approximate 100°C (180°F) per minute temperature rise. (NOTE: During initial
heat-up, the rate of increase will be slow to prevent overshoot).
• Calibration Screw: (6) Adjust for changes in thermocouple. (See Calibration).
7
6
5
2
3
4
1
ON
OFF LIGHT
TONE
CALIBRATION
RATE

7
SETUP & MAINTENANCE
CALIBRATION:
Your new Miniglaze/2 has been factory calibrated and should not need any adjustment. After long term use of
this furnace there may be some change in the temperature control. Periodic calibration is necessary to mini-
mize the effects of these changes.
• Place a piece (coupon) of pure silver on the center of a firing tray (on top of a peg). Using a pair of furnace tongs
place the tray in the muffle.
• Turn the furnace on.
• Set the heat rate knob for slow temperature rise (full counter-clockwise).
• Set the temperature control dial to 960°C (1761°F).
• Allow furnace to reach set point and stabilize for 10 minutes. Tone will sound or light will illuminate when muffle
temperature is within 10°C (18°F) of the set point.
• If the coupon has not melted turn the calibration screw 1/8 turn clockwise. Wait 1 minute for furnace to stabilize.
• If coupon remains un-melted, continue rotating calibration screw 1/8 turn clockwise and waiting 1 minute after
each rotation, until silver melts.
• When the silver melts the temperature indicator needle should read 960°C (1761°F).
CLEANING:
• Vacuum dust and dirt from the furnace rather than blow. This will minimize the amount of airborne dust
particles.
• Use a soft damp cloth to clean the control panel. Avoid excess water or solution when cleaning the furnace.
Some solutions will attack the panel or electronics and may cause the furnace to malfunction.
REPLACEABLEFUSES:
• F1: F 250V / 1.0A

8
OPERATING INSTRUCTIONS
• Turn the furnace on
• Insert muffle door
• Turn temperature control dial to 650°C (1200°F)
• Turn the rate control knob to the midpoint between "S" and "F"
• After 15 minutes, adjust the temperature control knob to 1000°C (1832°F) and the rate to maximum ("F").
• Allow furnace to maintain temperature for 10 minutes and readjust the temperature to the desired temperature.
After the Miniglaze has been calibrated and the initial heating procedure has been completed it is ready to process
dental porcelain.
Staining and Glazing
Before each operation, the furnace should be brought up to 540°C (1000°F). Set the temperature dial at the desired
temperature and adjust the temperature rise to the desired level. Using a pair of furnace tongs place the work in the
muffle and replace the door. The tone alarm or light will signal that the set temperature has been reached.

9
SPECIFICATION:
Width: 16cm (6-1/4 in.)
Depth: 15cm (6 in.)
Height: 29cm (11-1/2 in.)
Weight: 2.7kg (6 lbs.)
Operating Voltage: 115V ac (100-120V), 50-60Hz, 5.0A
230V ac (200-250V), 50-60Hz, 2.1A
Power Requirements: 720 watts
Temperature Display Accuracy: ± 10°C @ 650°C - 1000°C
± 18°F @ 1202°F - 1832°F
Heat Rise Rate: 10° - 100°C (18°F - 180°F)
Maximum Operating Temperature: 1100°C (2010°F)
Muffle Chamber dimensions: 6.4cm x 8.9cm x 4.5cm
(2-1/2" W x 3-1/2" D x 1-3/4" H)
OUTLINE DRAWING: mm(in)
152.4 (6.0)
63.5 (2.5)
155.7 (6.13)
114.3 (4.5)
43.2 (1.7)
292.1 (11.5)
50.8 (2.0)
10.1 (0.4)

10
TROUBLE SHOOTING
CAUTION: THE FOLLOWING MAINTENANCE REQUIRES ACCESS TO THE CIRCUIT BOARD ASSEMBLY
AREA. THE POWER CORD MUST BE UNPLUGGED FROM THE POWER OUTLET TO ELIMINATE
ANY SHOCK HAZARD BEFORE THE FOLLOWING STEPS ARE UNDERTAKEN.
PROBLEM PROBABLE CAUSE SOLUTION
1. No power supplied to
unit
2. Blow fuse F1
3. Circuit board not
functional
1. Thermocouple not
tightened to pyrometer
2. Thermocouple burned
out (open)
3. Circuit board not
functional
4. Burned out muffle.
5. Wiring problem
6. TC shorted.
1. Faulty triac
2. Circuit board not
functional
1. Out of calibration
Check power to your AC
receptacle
Replace fuse 1A
P/N: 9320071
Replace circuit board
P/N: R9494084 (115V)
P/N: R9494085 (230V)
Check TC wires on
pyrometer.
Replace thermocouple
P/N: 9490573
Replace Circuit Board
P/N: R9494084 (115V)
P/N: R9494085 (230V)
Replace muffle
P/N: 9490567 (115V)
P/N: 9490585 (230V)
Return unit to DENTSPLY
Ceramco
Replace circuit board
P/N: R9494084 (115V)
P/N: R9494085 (230V)
Calibrate meter as per
instructions.
Muffle does not heat, no
lights illuminated
Muffle does not heat:
tone sounds every
second and/or lamp (in
dial) flashes every
second and meter reads
room temp
Muffle heats continually
with muffle temperature
greater than the set
temperature
Meter disagrees with set
point more than 50°C

11
ACCESSORIES
DESCRIPTION PART NUMBER
Clear VueTM Muffle Door 9490738
Window Only 9390395
Door Only 9490737
Furnace Tongs
10" Tongs 9390014
12" Tongs 9390015
Furnace Trays (see DENTSPLY Ceramco Catalog)
Furnace Calibration Kit 9982561
PRODUCT SERVICE
Two methods of product service are available for the MINIGLAZE/2. The first is telephone assistance available at the
numbers listed below. The second is to return the furnace for servicing using the instructions below.
BEFORE RETURNING THE FURNACE, DO THE FOLLOWING:
• Remove all firing trays and other loose items from inside the muffle.
• The original packing material should be used for the return shipment. Contact DENTSPLY Ceramco for
replacements if they are not available.
• Call DENTSPLY Ceramco for a RMA number (Return Material Authorization). This is used to track and identify
your furnace. Material received without this number may not be identifiable.
• Equipment damaged in shipment as the result of improper packing may not be paid by the carrier. DENTSPLY
Ceramco will not be responsible for damages resulting from improper packing.
Ship Prepaid To:
TEL [phone] DENTSPLY Ceramco
FAX [phone] RMA Number __________
13553 Calimesa Blvd.
Yucaipa, CA 92399-2303 USA

12
WARRANTY
LIMITED WARRANTY AND LIMITATION OF LIABILITY
WARRANTY: Except with respect to those component parts and uses which are hereinafter described,
DENTSPLY Ceramco warrants its products to be free from defects in material and workmanship for a period
of two years from the date of sale. The warranty period for the muffle, a component of DENTSPLY
Ceramco's Miniglaze/2 Porcelain Staining and Glazing Furnace, shall be 2 years from date of sale.
DENTSPLY Ceramco’s liability under this warranty is limited solely to repairing or, at DENTSPLY
Ceramco’s option, replacing those products included within this warranty which are returned to DENTSPLY
Ceramco within the applicable warranty period (with shipping charges prepaid), and which are determined by
DENTSPLY Ceramco to be defective. This warranty shall not apply to any product which has been subject
to misuse; negligence; or accident; or misapplied; or modified; or repaired by unauthorized persons; or
improperly installed.
WARRANTY EXCLUSIONS: The warranty described in Paragraph 1 does not include normal wear of
DENTSPLY Ceramco's products or its components.
INSPECTION: Buyer shall inspect the product upon receipt. The buyer shall notify DENTSPLY Ceramco in
writing of any claims of defects in material and workmanship within thirty days after the buyer discovers or
should have discovered the facts upon which such a claim is based. Failure of the buyer to give written
notice of such a claim within this time period shall be deemed to be a waiver of such claim.
DISCLAIMER: The provisions herein stated represent DENTSPLY Ceramco’s sole obligation and exclude all
other remedies or warranties, expressed or implied, including those related to MERCHANTABILITY and
FITNESS FOR A PARTICULAR PURPOSE.
LIMITATION OF LIABILITY: Under no circumstances shall DENTSPLY Ceramco be liable to the buyer for
any incidental, consequential or special damages, losses or expenses.
LIMITATION OF ACTIONS: The buyer must initiate any action with respect to claims under the warranty
described in the first paragraph within one year after the cause of action has accrued.
570 W. College Ave.
York, PA 17404
PH: 800-487-0100
www.dentsply.com
Product Service Center
DENTSPLY Ceramco
13553 Calimesa Blvd.
Yucaipa, CA 92399-2303 USA
909-795-2461 • Fax: [phone]
PC 9940099F
rvN
0501
© 2005 DENTSPLY Ceramco
All Rights Reserved.
Printed in USA