9260 Mini Fixed-Point Cell Furnace

9260 Mini Fixed-Point Cell Furnace provides a fixed-point system that cuts in half the financial investment required to do fixed-point calibrations

 

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)

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)
SC1-FPMA Silver Care Plan, 1-yr Extended Warranty, FP Maintenance Apparatuses
SC2-FPMA Silver Care Plan, 2-yr Extended Warranty, FP Maintenance Apparatuses
SC4-FPMA Silver Care Plan, 4-yr Extended Warranty, FP Maintenance Apparatuses
5914A Mini Quartz Indium Cell

Accessory Description
1904-In Accredited Cell Intercomparison, Indium
5915A Mini Quartz Tin Cell

Accessory Description
1904-Sn Accredited Cell Intercomparison, Tin
5916A Mini Quartz Zinc Cell

Accessory Description
1904-Zn Accredited Cell Intercomparison, Zinc
5917A Mini Quartz Aluminum Cell

Accessory Description
1904-Al Accredited Cell Intercomparison, Aluminum
5944 Mini Metal Cased Indium Cell

Accessory Description
1904-In Accredited Cell Intercomparison, Indium
5945 Mini Metal Cased Tin Cell

Accessory Description
1904-Sn Accredited Cell Intercomparison, Tin
5946 Mini Metal Cased Zinc Cell

Accessory Description
1904-Zn Accredited Cell Intercomparison, Zinc
5947 Mini Metal Cased Aluminum Cell

Accessory Description
1904-Al Accredited Cell Intercomparison, Aluminum

 

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