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9260 Mini Fixed-Point Cell Furnace

9260 Mini Fixed-Point Cell Furnace
9260 Mini Fixed-Point Cell Furnace
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  • Highlights
  • Description
  • Specifications
  • Models and Accessories
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Inexpensive, easy-to-use fixed-point maintenance apparatus

  • Good introduction to fixed-point calibration
  • User friendly and inexpensive

Fluke Calibration’s 9260 Mini Fixed-Point Cell Furnace provides a fixed-point system that cuts in half the financial investment required to do fixed-point calibrations and virtually all the time and training required by traditional systems.

This furnace costs less than half of a large furnace and works with indium, tin, zinc, and aluminum cells to cover all ITS-90 fixed points from 156.5985 °C to 660.323 °C. The cells themselves, using a smaller volume of 99.9999 % pure metal, also cost much less. But cost is only a part of the issue.

The 9260 makes using fixed points easy. Simply insert the cell at the end of the day and let it sit overnight. The next morning, initialize the built-in software routine for your specific cell. Come back in an hour, verify the stability of the cell, and you can take measurements for the rest of the day from a near-perfect temperature source!

The built-in software lets you choose between using melting-point curves or freezing-point curves for each metal. The ITS-90 calls for freezing points, but melting points are easier to realize, and the difference in uncertainty (less than 2 mK for most applications) is generally insignificant. In fact, the difference between using traditional cells at their freezing points and Fluke Calibration’s mini cells at their melting points is not significant for most labs in most applications.

Comparison blocks are also available for the 9260 for high-precision comparison calibrations at high temperatures. Two blocks are available with a variety of pre-drilled wells in addition to blank or custom blocks. Well depth is 229 mm (9 in).

General Specifications

Temperature Range 50 °C to 680 °C
Ambient Operating Range 5 °C to 45 °C
Stability ±0.03 °C to 300 °C
±0.05 °C above 300 °C
Vertical Gradient Top and bottom zones adjustable by offset
Plateau Duration 6–10 hours typical
Resolution 0.01 °
Display Scale °C or °F, switchable
Immersion Depth 229 mm (9 in)
Stabilization Time 15 minutes nominal
Preheat Wells 2
Fault Protection Sensor burnout and short protection, over-temperature thermal cutout
Display Accuracy ±0.2 °C to 300 °C
±0.3 °C to 450 °C
±0.5 °C to 680 °C
Comparison Block Two multi-hole blocks, blanks, and custom blocks available
Well-to-Well Gradient (in comparison block) ±0.02 °C
Heating Time 1.25 hrs. from 25 °C to 680 °C
Cooling Time 10.5 hrs. from 680 °C to 100 °C
Comm. RS-232 included
Power Requirements 115 VAC (±10 %), 60 Hz, 11 A, or
230 VAC (±10 %), 50 Hz, 6 A, specify, 1200 W
Exterior Dimensions (HxWxD) 489 x 222 x 260 mm
(19.25 x 8.75 x 10.25 in)
Weight 20.5 kg (45 lb.) with block
Model Name Description
9260

Mini Fixed-Point Furnace (for In, Sn, Zn, Al cells)

5914A

Mini Quartz Indium Cell

5915A

Mini Quartz Tin Cell

5916A

Mini Quartz Zinc Cell

5917A

Mini Quartz Aluminum Cell

5944

Mini Metal Cased Indium Cell

5945

Mini Metal Cased Tin Cell

5946

Mini Metal Cased Zinc Cell

5947

Mini Metal Cased Aluminum Cell

Accessories common to all models:

Accessory Description
2940-9260

Container, Mini-Cell Support, 9260

2942-9260

Container, SST Mini-Cell Support, 9260

3160-1

Comparison Insert, Blank

3160-2

Comparison Insert, 7 holes at 6.35 mm (1/4 in)

3160-3

Comparison Insert, 2 holes at 3.2 mm (1/8 in), 2 at 4.76 mm (3/16 in), 2 at 6.35 mm (1/4 in), 2 at 9 mm (9/32 in), and 2 at 9.5 mm (3/8 in)

1904-In

Accredited Cell Intercomparison, Indium

1904-Sn

Accredited Cell Intercomparison, Tin

Priority Gold Instrument CarePlan

Fluke Calibration Priority Gold Instrument CarePlans are available for most calibration products. Please contact your local Fluke Calibration sales representative for details or to request a quote. You may also call the Customer Care Center at 877-355-3225 or send email to careplans@flukecal.com.

Silver CarePlan

Fluke Calibration Silver CarePlans are available for most calibration products. Please contact your local Fluke Calibration sales representative for details or to request a quote. You may also call the Customer Care Center at 877-355-3225 or send email to careplans@flukecal.com.

Product Manuals
application/pdf icon 5914A User’s Guide (1.86 MB)
application/pdf icon 5944/5945/5946/5947 Statement of Memory Volatility (14.13 KB)
application/pdf icon 5944/5945/5946/5947 Users Guide (1.36 MB)
application/pdf icon 5944/5945/5946/5947 Users Guide (Rus) (1.08 MB)
application/pdf icon 9260 Mini Fixed-Point Cell Furnace Users’ Guide (English) (1.07 MB)
application/pdf icon 9260 Mini Fixed-Point Cell Furnace Users’ Guide (Russian) (3.99 MB)
Application Notes
application/pdf icon Establishment of a Primary Temperature Standards Laboratory (3.21 MB)
Papers / Articles
application/pdf icon Mini Metal-Cased Fixed-Point Cells (287.24 KB)
application/pdf icon Fixed Points for Secondary Level and Industrial Calibration (496.68 KB)
application/pdf icon Fixed Points for Secondary Level Calibrations (560.12 KB)
application/pdf icon New Generation of Fixed Points (246.17 KB)
application/pdf icon Study of a New Fixed-Point System for Calibration of Short Secondary Platinum Resistance Thermometers (117.78 KB)
Why Use Fluke Calibration Metal Freeze-Point Cells?
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