Iec 60584 1 20 specifies reference functions and tolerances for letter designated thermocouples types r s b j t e k n c and a temperatures are expressed in degrees celsius based on the international temperature scale of 1990 its 90 symbol t90 and the emf symbol e is in microvolts the reference functions are. Establishes a set of reference tables for the seven most commonly used types of commercially available thermocouples, giving both electromotive force as a function of temperature and temperature as a function of electromotive force. Ptfe insulated, pfa sheathed, class 1 thermocouple extension cables. Iv tolerances of thermal pairs as normed by iec 60584. The specifications in these documents are the same. Although most of the topics covered may apply equally to. Line 3 alternates between digital output value and scaling khz, hz, mhz, pm, ph, pd or shows tag no. List of iec standards for projects in electrical power systems 47 power cables with extruded insulation and their accessories for rated voltages from 1kvum1,2kv up to 30kv um3,6kvpart4. Thermocouple base materials acc to iec 584 type conductors temperature range v class 1 class 2.
Standard specification and temperatureelectromotive force. Extension and compensating cablestolerances and identification system edition 2. Identification of measurement circuits on terminal block andor marking plate. The reference functions are polynomials which express the emf electromotive force as a function of temperature with the thermocouple reference junctions at 0 celsius.
Ansi and iec color codes for thermocouples, wire and. This part of iec 60584 specifies reference functions and tolerances for letterdesignated thermocouples types r, s, b, j, t, e, k, n,c and a. It specifies manufacturing tolerances for extension and compensating cables other than mineral insulated cables provided directly to users of industrial processes. Extension and compensating cables tolerances and identification system 12 pages. Host jeff wigen, national sales manager 24 years in sales and marketing of custom designed madetoorder products for the industrial and biotech. Tolerance values of the thermocouples per iec 605841 astm e230 reference temperature 0 c type thermocouple tolerance value class temperature range tolerance. The operating temperature ranges a 3 and permissible deviation limits of the thermoelectric voltages from the standard characteristic a 4 vary according to the type of thermocouple used. Reference tables establishes a set of reference tables for the seven most commonly used types of commercially available thermocouples, giving both electromotive force as a function of temperature and temperature as a function of electromotive force. Extension and compensating cables tolerances and identification system it specifies manufacturing tolerances for extension and compensating cables other than mineral insulated cables provided directly to users of industrial processes. Thermocouple junction assembly see appendix a for details regarding thermocouple wire and junction assembly validation methods. Three push buttons combined with a simple and easily understandable menu structure and help text guides you effortlessly through the configuration steps.
Besides the identification letter of the thermocouple type, extension cables are identified by x compensating cables. Programming access can be blocked by assigning a password. Extension and compensating cables tolerances and identification system. While all reasonable efforts are made to ensure that the technical content of iec publications is accurate, iec cannot be held responsible for. The text of document 65b873fdis, future edition 3 of iec 605841, prepared by sc 65b. While all reasonable efforts are made to ensure that the technical content of iec publications is accurate, iec cannot be held responsible for the way in which they are used or for any.
The purchaser shall state this, and selection of materials is usaly required. These tolerances are determined with respect to the e. The designation k is applicable for both nicr ni and for the registered trade name chromel alumel. Base metal extension and compensating wires and cable types and tolerances. Extension and compensating cables tolerances and identification system iec 60584 3.
Test requirements on accessories of cables with rated voltages from 6 kv upto 30kv iec605024 48 specification for reactorsgeneral iec60289 49. Although most of the topics covered may apply equally to nonstandard. Extension and compensating cables tolerances and identification system iec605843 edition 2. Since the values of both standards vary only marginally in the lower temperature range up to approx. Thermocouple base materials acc to iec 584 temperature. Data acceptance program equipment acceptance of thermocouple wire.
Please see the previous pages for instructions on how to order iec colorcoded products. Line 4 shows tendency readout for the input signal and communication status. Besides the identification letter of the thermocouple type, extension cables. Insets rtds and thermocouples with mineral insulation, iec. Temperatures are expressed in degrees celsius based on the international temperature scale of 1990, its90 symbol t90, and the emf symbol e is in microvolts.
Extension and compensating cables tolerances and identification system iec 605843. Extension and compensating cables tolerances and identification system iec tcsc 65b on. All bsi british standards available online in electronic and print formats. Iec 60584, astm e230 the following table contains permissible tolerance values of iec 605841 incl.
The reference functions are polynomials which express the emf electromotive force as a function of temperature with the thermocouple reference junctions at 0. Standards defining temperature sensors burns engineering. They are marked as per iec 60584 din en 60584 with the letter c. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to. Color coding for conductors and outer sheaths to iec 60584. Kc for nicrni compensating wire type k thermo wires offer in a temperature range up to 200 c the same thermal tension and are having the same nominal chemical composition as the thermocouple. The text of this standard is based on the following documents. Apr 14, 2008 iec 60584 1 thermocouples reference tables. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern them. Temperatures are expressed in degree s celsius based on the international temperature scale of 1990, its90 symbol 90, t and the emf symbol e is in microvolts. In this handbook, model numbers in the to order tables reflect the ansi colorcoded product. Test requirements on accessories of cables with rated voltages from 6 kv upto 30kv iec 605024 48 specification for reactorsgeneral iec 60289 49.