accuracy limits
TRANSCRIPT
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1. Accuracy limits
1.1 Thermometer resistors Pt100
Accuracy limits for resistors Pt100
TemperatureoC
Class A Class B Class 1/3B
0 /0"15 /0"06 /0"% /0"1. /0"1 /0"0
100 /0"%5 /0"1% /0" /0"%0 /0".6 /0"1
.00 /0"55 /0".0 /1"% /0" /0" /0"16
%00 /0"75 /0".7 /1" /0"6 /0"6 /0".1
00 /0"25 /0"%% /."% /0"72 - -
500 /1"15 /0"% /." /0"26 - -
600 /1"%5 /0"% /%"% /1"06 - -
700 - - /%" /1"17 - -
00 - - /"% /1". - -
200 - - /"6 /1"% - -
1.2 Thermocouples
Type
Class 1 Class 2 Class 3
Temperatureran&e 'C(
Temperatureran&e 'C(
Temperatureran&e 'C(
Temperatureran&e 'C(
Temperatureran&e 'C(
Temperatureran&e 'C(
41.5 to %50 /0"00 ( t 41%% do %50 /0"0075 ( t -.00 do -67 /0"015 ( t
3ype E-0 to 4%75 /1"5 -0 do 4%%% /."5 -167 do 40 /."5
4%75 to 400 /0"00 ( t 4%%% do 4200 /0"0075 ( t -.00 do -167 /0"015 ( t
3ype -0 to 4%75 /1"5 -0 do 4%%% /."5 - -
4%75 to 750 /0"00 ( t 4%%% do 750 /0"0075 ( t - -
3ype -0 to 4%75 /1"5 -0 do 4%%% /."5 -167 do 40 -
4%75 to 41000 /0"00 ( t 4%%% do 41.00 /0"0075 ( t -.00 do -167 /0"015 ( t
3ype 480 to 41100 /1"0 0 do 4600 /1"5 - -
1100 to 1600 /9140"00% t ;1100
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2. )ynamic parameters
2.1 Time of response 't(
3ime of response 9t=& this is a time& which thermometer needs& after temperature step change& to show specifiedpercentage of a change" 3ime of response 9t0"5=& this is the time& after which the thermometer show 50> of value of
the temperature step change" 3here can 'e specified times of response for 10> 9t0"1= or for 20> 9t0"2="
3imes of response can 'e specified for circulated air or water"
3. *ire confi&uration.
3.1 Confi&uration sym+ols
.-wire %-wire -wire
*a'le resistance *u: @ A ( 0"0175< $ s
where:
A @ ca'le length 9m=
s @ ca'le diameter 9mm.=
0"0175 @ *u material resistance
3hermometer response
3ime
Norm EN- 607514. specify the following ca'le configuration:
3hermometers with only .-wire configuration& which are used with . outer connecting ca'les only&should not 'e applied to class p?t%"%"1 EN-607514.
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3.2,esistance thermometers connection
Connectin& -ia&ram of terminal +loc ith " connections Confi&uration 3ire 2Pt100
2Pt1003p
%. Pro-ucts uality controlEach manufactured product is Buality controlled in our la'oratory in compliance with norm reBuirements"
3he Buality control of manufactured 'y us platinum resistors was also made 'y *ertified Aa'oratory CC--06701 of Audwig 8chneider Desstechni? m'F"
%.1 ,esistance thermometer uality control3his procedure is made for the following sensors: Pt-100$1"%50& Ni-100$1"617& *u-100$1".6 and also for of
unusual resistance in 0o* sensors Pt-50& Pt-500& Ni-.00& *u-50& itp"< and resistance thermometers eBuippedwith these sensors"
3here is also possi'ility of chec?ing the parameters of eBuipment used for measuring resistance and voltage ofsensors"
%.2 Thermocouple uality control
Procedure is done for the following thermocouples Pth10-Pt 8