热电偶允差表

标准热电偶允差表

* Thermocouples and thermocouple materials are supplied to meet the limits of error specified or temperatures above 0℃. A thermocouple material may not confirm to the published sub-zero limits of error for that material when purchased, unless conformance is agreed to between customer and supplier.

** Special limits of error for sub-zero temperatures have not yet been established. The following limits for calibrations E and T are useful to start discussion between customer and supplier.

-200 to 0℃
Type E ± 1℃or ± 0.5%, whichever is greater
Type T ± 0.5℃ or ± 0.8%, whichever is greater

Sub-zero limits of error for Type J and sub-zero special limits of error for Type K are not considered because of the characteristics of the materials.

ANSI Limits of Error Extension Wire and Compensating Extension补偿导线允差表

（Reference Junction 0℃）

Compensating Extension Wire

† The degree C limits of error are based on a measuring junction temperature greater than 870℃ for Types SX and RX, 1000oC for Type BX.

Non ANSI Limits of Error Thermocouples非ANSI热电偶允差

Non ANSI Limits of Error Compensating Extension Wire非ANSI热电偶补偿导线允差

*For Extension wire/thermocouple wire Junction temperature (both equal) above about 800 Type K wire may be used with minimal error.

Limits of error apply only to thermocouples supplied by the manufacturer. The calibration of a thermocouple may change because of the influence of such factors as temperature, temperature cycling, and time.