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The Model 11 Coaxial Thermal Converters are AC-DC transfer devices that provide broad voltage and frequency capability at the highest NIST reportable accuracy. There are eighteen separate and overlapping voltage ranges in the Model 11 set. The eighteen ranges are obtained by interconnecting one of three thermoelement modules with one of five resistor modules or with the thermoelement adapter. For example, connecting the 90080C resistor module with the 90081A thermoelement module produces the 30 V range of the set. Each combination can be used from 50% to 120% of its rated voltage. The eight modules of the set, therefore, completely span the 0.5 to 1200 volt range. At rated input voltage the input current is either 2.5, 5 or IOmA depending upon the thermoelement modules in use. The output emf is nominally 7 mV for all voltage ranges at rated input voltage. All AC-DC difference corrections are referenced to the center plane of a G.R. Type 874T connector. Each resistor module and the thermoelement adapter has a G.R. Type 874 input connector and each thermoelement module has an MS3102A-10SL-4P output emf connector. AC-DC difference data is reported by Holt, traceable to the National Institute of Standards and Technology. The Model 11 set may also be tested and reported directly by NIST-Boulder or NIST-Gaithersburg Carrying Case (1) P/N 8401-007 Thermoelements (3) P/N 90081 A, B, C TResistor Modules (5) P/N 90080 A, B, C, D, E Thermoelement Adapter (1) P/N 84980 Click on thumbnails above for big pictures! Get Skype and contact me directly when we're both online! (please look at our rules and privacy policy) |
agould@machine--tools.com (Anastasia Gould) for additional information. This email is used for forwarding to newsgroup user.
