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M 380
Freezing point blackbody calibration sources provide fixed point, primary calibration standards. 8 models provide temperatures from 29.76° to 1084.62°C.
Calibration sources of series 380 are used to achieve a calibration standard in the industry comparable to the standard offered by national calibration institutes.
Each calibration source generates a single fixed temperature which is determined by the melting or
freezing point temperature of a certain metal with an extremely high purity.
Such a calibration source can be used as a primary calibration standard. In combination with a transfer-standard-pyrometer it enables the transfer of exact temperature values onto other calibration sources.
Heated Cavity Shape:
Closed end tube
Emissivity:
0.999 ±0.0005 at 0.65...1.8 µm; M380-GA: 3...5 µm
Aperture diameter:
6 or 12 mm (dependent of melt material)
Temperature uncertainty:
(see table)
Average warm-up time:
(dependent of melt material)
Dimensions [mm] (HxWxD) / Weight:
213 x 280 x 380 / 10 kg
|
Model
|
Material
|
Freeze temperature
|
Meas.
uncertainty
|
Aperture |
| |
|
|
|
|
|
M 380-CU
|
Copper |
1084,62°C *
|
0,50°C
|
6 mm
|
|
M 380-AU
|
Gold |
1064,18°C *
|
0,40°C
|
6 mm
|
|
M 380-AG
|
Silver |
961,78°C *
|
0,40°C
|
6 mm
|
|
M 380-AL
|
Aluminium |
660,32°C *
|
0,30°C
|
6 mm
|
|
M380-ZN
|
Zinc |
419,53°C *
|
0,30°C
|
12 mm
|
|
M380-SN
|
Tin |
231,93°C *
|
0,20°C
|
12 mm
|
|
M380-SB
|
Indium |
156,60°C *
|
0,20°C
|
12 mm
|
|
M380-GA
|
Gallium |
29,76°C **
|
0,05°C
|
12 mm
|
* Assigned value of ITS 90
** Melt temperature
|
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