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Standard Resistor Maintenance Bath
Dew point to 40°C
This bath, Model 455, is the result of many years of development and is used to maintain the temperature of standard resistors used with thermometry bridges. It can also be used with the Automatic Resistance Bridge Calibrator, A-RBC.
Temperature coefficient of resistance 2ppm/°C 0.5ppm to special order
Eventually all resistance thermometry refers back to one or more fixed resistors. These are a key element in any laboratory which measures temperature.
Temperature Controlled Fixed Resistors
Nominal Temperature Coefficient of Resistance: +0.02ppm/°C (with temperature control on) 18 to 25°C
Model 456. By temperature controlling an otherwise very stable resistor a performance close to the very best available World-wide can be achieved at a surprisingly low price.