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  Customer data
Company*  
Department  
Website  
P.O. Box  
Street*  
Postcode, city*  
Country*  
Contact person*  
Phone  
E-mail*  
  
Industry
In which industry sector will the pyrometer be used?  
  
Application
Measurement description

If possible, please send us pictures or drawings to
its@keller.de
or by fax to
+49 (0) 5451 85412
  
  
Measuring position of the pyrometer
Measurement from the top (1)     
Measurement from the side (2)     
other measuring position  
Measuring distance (a1)  
Length of sighting tube (a2)  
Diameter of sighting window (free opening) (d1)  
Diameter of opening (d2)  
Measuring distance (b1)  
Length of sighting tube (b2)  
Diameter of sighting window (free opening) (d3)  
Diameter of opening (d4)  
  
CVD with plasma
Nature of the plasma  

Type of other gas compound  
Is the plasma produced by microwave?     
  
Temperatures
Temperature of the diamond (from/to in °C)  
Temperature of the support (from/to in °C)  
Temperature inside the furnace/plasma (from/to in °C)  
  
Dimension of the diamond
What is the size of the seed crystal at the beginning?  
Number of seed crystals  
Expected width of the diamond at the end of cultivation in mm?  
Expected depth of the diamond at the end of cultivation in mm?  
Expected height of the diamond at the end of cultivation in mm?  
  
Information on the process
How long does the growing process take?  
Indication of duration in     
Speed of growth  
At what point do graphite deposits occur (in hours)?  
Is the crystal moving?     
Is the crystal permanently visible?     
How is the temperature measured so far?  


Other measuring method  
Ambient temperature of the pyrometer in °C  
Material of the sighting window?  


Other material of the sighting window  
  
Specification of the measured value recording
Measure at the beginning of the process before the first carbon/graphite deposition?     
Measure once the carbon/graphite deposition?     
Pyrometer type  

Sighting Option  


  
Signal processing
Output signal / Digital interface  



Other digital interface  
Should the measuring values be recorded?     
Is a central data recording existing?     
Additional details or description  




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Questionnaire for temperature measurement in the cultivation of artificial diamonds

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