Additel 850-1200
• Temperature control from 300°C to 1200°C
• 3-in-1 furnace with 9 unique modes
• Stability of ±0.1°C
• Radial uniformity of ±0.25°C @ 1200°C
• Axial uniformity of ±0.25°C @ 1200°C
• Multi-zone temperature control
• Quick cool technology
• Sliding probe holder provides mechanical stability and precise probe depth control
• Pivoting color touchscreen display
• Alumina and metal inserts available
• Patent-pending EMF shielding technology
• Advanced safety control
• Wi-Fi Communications
Thermocouple calibration work can be challenging. Here at Additel, we understand the difficulties of this type of work. Traditional furnace designs require several individual devices to meet industry standards for various calibration applications. To address this costly reality, Additel has created a multi-purpose furnace to help save time, money and space in your calibration facility. Our new ADT850 Laboratory Thermocouple Calibration Furnace is like having three separate furnaces is one. Users can select optimized settings for shorter probes, longer probes and even annealing purposes. The ADT850 horizontal furnace can be used in (9) different modes/configurations to help meet even the most challenging calibration requirements and standards. Additel’s 850 furnace is packed with many additional features and a performance you will not find anywhere else. The ADT850 is commonly used in a multitude of industries such as energy, calibration laboratories, aerospace and metallurgy to name a few. It is generally used by primary and secondary calibration laboratories to calibrate various length noble and base metal thermocouples with the lowest possible uncertainties. Additel’s ADT850 is the most stable and versatile furnace available!
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Specification |
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Temperature Range |
300°C to 1200°C |
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Heating Time |
(23°C~1200°C) 40 mins, (empty well) |
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Cooling Time |
(1200°C~300°C) 90 mins, (empty well) |
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Operating Conditions |
0°C to 50°C, 0-90%RH (0°C~50°C), non-condensing, <2000 m altitude |
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Storage Temperature |
-20°C to 70°C |
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Display Screen |
7 in (178 mm) color touch screen |
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Display Resolution |
0.01°C |
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Display Accuracy (Long empty chamber mode) |
±5°C |
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Heater Power |
4000 W (220 V AC) |
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System Power |
20 A, 220 V ±10% 50/60Hz |
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Power Protection |
30 A, 250 V resettable circuit breaker |
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SIZE (W x H x L) |
342 x 424 x 680 mm (13.5 x 16.7 x 26.8 in) |
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Weight |
45 kg (99.2 lbs) without insert |
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Communication |
Wi-Fi, Bluetooth, USB, LAN |
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Warranty |
1 year |
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Long (Deep) Immersion |
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Mode |
Long empty chamber mode |
Long cup mode / Long insert mode |
Long alumina tube mode |
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Application |
Noble and base metal TC calibration |
Base metal TC calibration |
Noble metal TC calibration |
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Configuration (insert) |
Empty chamber, without insert |
Long cup insert or multi-hole insert |
20 mm (ID) alumina tube |
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Insert Dimension |
N/A |
Cup insert: 36.5 X 28.5 X 80 mm, Block insert: 36.5 X 80 mm |
26 mm (OD) X 20 mm (ID) X 630 mm (L) |
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Immersion Depth |
310 to 370 mm (geometrical center: 340 mm) |
370 mm to the bottom of insert |
310 to 370 mm(geometrical center: 340 mm) |
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Stability |
±0.1°C full range |
±0.1°C full range |
±0.1°C full range |
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Axial Uniformity |
±0.2°C full range (within ±30 mm axial length from geometrical center) |
±0.2°C full range (within 60 mm from bottom of the insert) |
±0.2°C full range (within ±30 mm axial length from geometrical center) |
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Radial Uniformity |
±0.2°C @ 300°C, ±0.2°C @ 700°C, ±0.2°C @ 1200°C (within 14 mm from geometrical center) |
±0.1°C @ 300°C, ±0.15°C @ 700°C, ±0.2°C @ 1200°C (within 14 mm from geometrical center) |
N/A |
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Short Immersion |
Annealing furnance |
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Mode |
Short empty chamber mode |
Short cup mode / Short insert mode |
Short alumina tube mode |
TC annealing mode |
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Application |
Short noble and base metal TC Calibration |
Short base Metal TC calibration |
Short Noble Metal TC calibration |
Nobel metal TC annealing |
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Configuration (insert) |
Empty chamber, without insert |
Short cup insert or multi-hole insert |
16 mm (ID) alumina tube |
Without insert |
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Insert Dimension |
N/A |
Cup insert: 36.5 X 28.5 X 80 mm, Block insert: 36.5 X 80 mm |
22 mm (OD) X 16 mm (ID) X 630 mm (L) |
N/A |
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Immersion Depth |
200 to 240 mm (geometrical center: 220 mm) |
240 mm to the bottom of insert |
200 to 240 mm (geometrical center: 220 mm) |
100 mm to 500 mm |
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Stability |
±0.1°C full range |
±0.1°C full range |
±0.1°C full range |
±0.1°C full range |
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Axial Uniformity |
±0.5°C in full range (within ±20 mm axial length from geometrical center) |
±0.5°C in full range (within 40 mm from bottom of the insert) |
±0.4°C full range (within ±20 mm axial length from geometrical center) |
±20°C @1100°C within 400 mm range ( from 100 to 500 mm) |
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Radial Uniformity |
±0.3°C @ 300°C, ±0.3°C @ 700°C, ±0.3°C @ 1200°C (within 14 mm from geometrical center) |
±0.25°C @ 300°C ±0.25°C @ 700°C, ±0.25°C @ 1200°C (within 14 mm from geometrical center) |
N/A |
N/A |
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AM1210-20-CJ Type S Re |
erence Standard Thermocouple |
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Temperature Range |
0°C to 1300°C |
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Type |
Type S: Platinum/10% Rhodium vs. platinum w/ cold junction |
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Long Term Drift |
±0.5°C at 1084.62°C after 1 year typical usage |
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Short Term stability |
±0.2°C at 1084.62°C |
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Diameter of thermocouple wire |
0.5 mm |
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Sheath Material |
Alumina |
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Sheath Dimensions |
OD: 6 mm (0.236"); Length: 600 mm (23.6") |
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External Lead Wire |
S type thermocouple wire 600 mm (23.6") |
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Protective Carrying Case |
Included |
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Documentation |
Report of test with data |
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Note: ISO 17025 accredited probe calibration available, contact Additel for more information |
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Documents and Links |
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Additel 850 Laboratory Thermocouple Calibration Furnace Datasheet |
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Additel 850 Laboratory Thermocouple Calibration Furnace User Manual |
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Software and Firmware |
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Name |
Versions |
Upload Date |
Size |
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2021-07-23 |
6 MB |
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Videos |
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