JJG 229-1998 Industrial platinum and copper thermal resistors JJG229-1998 standard download decompression password: www.bzxz.net
This regulation is applicable to the verification of industrial thermal resistors and temperature sensing elements in the operating temperature range of -200~+850℃, either newly manufactured, in use or after repair.

Verification Regulation of Industrial Platinum and Copper Thermal Resistor
JJG 229—1
Verification Regulation of Industrial Platinum and Copper Thermal Resistor
Verification Hegulation of IndugtryPlatinun Lopper Resisiaee Theometer'sJ.IG229:-1998
Generation: JJG 229—1987
This standard was approved by the National Quality Assurance Administration on [April 14, 1096] and was implemented on [October 1, 1048].
Responsible unit: Shanghai Technical Supervision
Reform unit: Shanghai Metrology and Testing Technology Research Institute The technical provisions of this regulation shall be interpreted by the drafting unit. The drafter of this regulation:
Shi Nianlan (Shanghai Metrology and Testing Technology Research Institute) Co-drafting persons:
Xin Du (Shanghai Automation Instrument Co., Ltd. Automation Instrument 1) (Shanghai Tongkong Instrument Co., Ltd.) Qu Jiancheng [Shanghai Gaoqiao Instrument Research Institute]
Wu Tiyuan (Industrial and Pharmaceutical Instrument Research Institute? 960
Technical requirements
Verification conditions
Verification items and verification force method
Calculation of verification results
Large verification result table processing Introduction to verification cycle
Appendix 2| |tt||Attachment?
Format of the back of the certificate
"Industrial thermal resistor verification record sheet
T North potential electric use (Ptl0 tooth waste coupon
Appendix 4
Industrial thermal resistance (100) table
Industrial thermal resistance (CuS0) classification
Attached record 6
Industrial thermal resistance (Cui00) classification table
Industrial copper thermal resistance verification procedure
This is suitable for the production, with the temperature of 2M, 0 part or the entire range of the above industrial thermal resistance (with simple standard thermal resistance) and sensing element verification: a description
The whole procedure of this regulation is for the resistance temperature system of flash platinum thermal resistance for ·2H-2000
Rt+ - RU)- 1+A -F? -t -It
For the humidity range of 85
Rt -R+Ar-B
Wherein: (:) At temperature: - degrees,
.-When the temperature is the direct value of the thermal power,
-range, its value is 3.9083×[03
B--normal teaching, its value is -5.775310-7:7; normal excitation, its value is -4.183-1-
The code of this code is the actual temperature of the thermal power. Under the actual rate: Liu in the temperature range of -50-150℃, use
Rtt) - R(0t3-l + ar i pi: - -:- lot+) test: 3-spin coefficient. Its value is 4.280×103-- constant is -9.31×10H:2; - constant, its value is 1.23×10-\-3
2 Technical requirements
[The assembly quality and appearance of the thermoelectric tester shall meet the following requirements: t.
Each part shall be assembled correctly, reliably and intact; 1.2
No cracks or streaks:
The temperature sensing element shall not be broken, and there shall be no obvious bending (non-detachable thermal resistors are not subject to this inspection): t
The temperature sensing element shall be intact and free of dents, scratches and obvious rust Corrosion: 1.5 The coating on the surface should be firm:
1.6 The thermal resistor should have the following signs: manufacturing name, trademark, thermal resistor model, graduation number, allowable grade, applicable temperature range, country, mountain "" "port professional equipment manufacturing license you mark: 2 half ring competition temperature is 15 · 35t:, material for Lu degree is not required, the insulation between the thermoelectric temperature sensing element and the insulation source element is not less than U0M: the heat adjustment class is not less than S0M3 thermal resistance is required to be rated as a temperature table, see Table 1: 9
point name
table! In: people do not need to measure the range of the barrier. Table
ot: small milk supply
grade heart allowed to put the thermal resistor,! For R () C0. For natural use, the tolerance range F.
In.15 -.m*?
o.-t.ms.!
"The above provisions of the carrying power of the implementation of the provisions, including the provisions of the discount, for the two lack of power market with the whole gold component, if the requirements are only five yuan lower gate selection deviation to the embarrassing provisions, the appropriate plan! The decision must be made within the lead or the port to do the electrical diagram temperature coefficient: and the standard you should have the smallest deviation from the provisions of Table 2, the platinum core group should be allowed to be stable, in the upper and lower temperature limits to withstand 250, the compensation of your conversion into scientific and technological suffering shall not exceed the provisions of Table 3.
Thermal power alliance source
Thermal resistance
Allowed to age at level
Allowed safety period 1
North work pressure school withdrawal
=41.cX:12
: 0,0020
The maximum allowable change
The newly manufactured thermal resistor shall meet all technical requirements of this specification: The thermoelectric type after use and in use shall meet the requirements of Articles 1, 1.2, 1.3, 1.6 and 2.3.4 of this specification. The manufactured temperature sensing components shall meet the requirements of Articles 1.2, 1.3, 2.3, 4.5. The used sensing components shall meet the requirements of Articles 1.2.1.3, 2.3, 4.4. The specified conditions
Special instruments and equipment for calibrating thermal resistors:
First-class standard thermometer!
For calibration, third-class standard water thermometers may also be used. 1. The minimum step of the component level measurement and analysis of the electrical condition The value should not be greater than 1>-*0, and the same with the precision of the electrical measuring equipment: when calibrating the A-level thermal resistor, the electrical measuring equipment should quote the limit value J.3
connect the melting point: the potential is also less than 0.4V, 7.4
ice point sugar
water point reduction range according to the temperature and other conditions of 100t: point temperature standard. The vertical temperature difference between the water point and the hole is not more than 3
.0℃: the horizontal temperature difference is not more than 0.0
7.6 high temperature furnace in the two temperature environments? When the maximum and horizontal temperature differences in the working area should not be larger than 1, the thermal resistor tolerance is 1/8 to 1/10.
7.7 Liquid thermal Dolby
7.8 Water triple point bottle and its protection device
7.9 Reading telescope (receiver frequency 5~10V insulation resistance meter
multimeter
8 The calibration is carried out under the following conditions:
8.1 The lubricity of the two working rings of the test equipment that does not have the temperature condition should be (20~2). B.2 For thermoelectric devices whose protective tubes can be removed, before the calibration, the test piece of the thermal resistor should be taken out from the inner tube and the protective tube, and placed in the test tube (when the calibration temperature is above 400℃ 1. During the calibration, place the temperature-containing element together with the glass test tube in the medium for calibration: 8.3 During the calibration, the current passing through the thermal resistance should not be greater than 1mA. 8.4 When measuring the current value of the thermoelectric anode at 1MΩ, the temperature of the water boiling point or the quasi-temperature model should not exceed 100℃, and the temperature change per 10℃ should not exceed .4℃. IV. Calibration items and calibration methods
Double matching external testers ||tt || Check the thermal output for open circuit or short circuit with a multimeter: the rest of the assembly quality and appearance are directly checked. 10 Insulation resistance test
The network resistance of the thermal resistor is measured with an insulation resistance tester. When measuring the network resistance of the thermal resistor, the terminals of the thermal resistor should be connected in parallel to one terminal 1 of the resistance meter. The insulation protection between the thermometer and one terminal should be clamped tightly. Only the thermal resistor of the temperature-controlled component can be used. The insulation resistance between the output terminals of the temperature-controlled component is: R(0T), R(100T).
11.1 Verification points||tt ||111 Thermocouples are rated for 0, 100, and 100 when necessary. When the thermocouple exceeds the tolerance and is qualified within the tolerance of 0, 100 points, the temperature wheel should be increased within the limit of the thermal process. 11.1.2
Temperature wheel display
Juice: When the upper limit of the sense resistor exceeds 3m1, if the equipment is complete under normal conditions, the monthly 300-point inspection is allowed. 11.2 Wiring method
11.2.1 When measuring the resistance value of a two-wire thermocouple or a temperature sensing element, two wires should be connected to each lead of the thermocouple or temperature sensing element, and then the four-wire connection should be selected for wiring measurement. 11.2.2. When using a thermoelectric generator, the internal line resistance is not included. Therefore, when measuring the resistance, the measurement method must be used twice to eliminate the influence of the internal line (each measurement is carried out according to the line). When calibrating a thermoelectric generator, refer to Figures 1 and 2. Measure R according to Figure 1 and measure the internal line resistance according to Figure 2. 11.3 Insertion depth
The insertion depth of a thermoelectric generator is generally not more than 3m
11.4. Verification of resistance value R (0.75°)
Insert a second-class standard temperature thermoelectric tester into the freezing point grid of a mixture of ice and water (thermal self-identification The thickness of the ice layer is not less than 30 m, the following words are recommended: standard platinum self-resistance thermometer 1→test 2,
standard platinum resistance thermometer-test 1→test 2·
a reading cycle is set. A-level thermal resistors should be measured for no less than three cycles each time, and level 3 platinum thermal resistors and copper thermal resistors should be measured for no more than two cycles at most, and the average value is taken for calculation. Note:
1 When using a first-class standard thermometer to control the thermometer, the standard thermometer in the above-mentioned sequence should be changed to a standard water humidity meter. The hygrometer 2 thermal resistance (U) ratio can be measured by reverse connection in the water-ice water mixture. 100t electric current R: measurement M
Insert the second-class standard resistance thermometer and the thermal resistor to be tested into the water filter or set the temperature in the constant oil. After the temperature is stabilized, the measurement of resistance value (:) can be carried out according to the method described in 11.4 in high temperature. 11.6: The measurement of resistance value (:) can be carried out according to the method described in 11.4 in high temperature. 12
If necessary, the stability of the new thermal resistor should be sampled and controlled. The method is as follows: Measure the resistance of the platinum thermoelectric when D is measured. R (12.1) After being fully heated, make the thermal resistor stand at the upper limit temperature of 250°C, and then let it cool naturally. 12.2) Make the thermal resistor stand at the lower limit temperature of 250°C (12.3) If the lower limit temperature of the thermal resistor under test is lower than the temperature of the test point, take the trigger point 12.4 as the test temperature, and then let it rise to room temperature. 12.5 Measure the average resistance value of the 20°C thermoelectric resistor (25°C) When the test result is measured, 13) The temperature in the freezing point is 1. According to the formula: f, a dtr-
In the table: RR,—R(Or:
R,R*tot
represent the standard current limiting meter at temperature, and the low output resistance value (α); 965
#(0t:)-R1.0000398
the resistance gate of the quasi-platinum electric current at the water phase point, the standard steel resistance temperature full-time self-group change rate with temperature R-.003
the good control resistance of the market "Ot:) is calculated according to the following formula: 14
R (oU)R, -(eRd),-ut,
一:-the plate will use the thermoelectricity at the time of the electrical value (0): (R)——the rate of change of the positive with the temperature of the tested thermal resistor (thermal positive (R=
for copper thermal resistor (d/dr>-.M428t)
++ k' fut)-
the resistance value of the test thermoelectric in the machine (
the shrinkage difference E of the test thermoelectric at D℃ is calculated according to the formula: Eo -IRo) -R'ToCJj(dRdi?,-
the k10Ut of the picked up thermal resistor is calculated according to the formula: R(100T-RtKA), WA
output:
the resistance value of the test thermoelectric at the boiling point of water into oil temperature (: (R-. A test thermoelectric resistance change ratio with temperature when 10) for the busy thermoelectric 1dR/d:): Lm=U,M379R((t) for the thermoelectric (R/d:),--D.0J428R(t:)-(RR(00TR-
W(100)
standard platinum thermometer at commercial temperature! Standard resistance diagram): (5)
The R value is calculated to obtain the standard platinum resistance gate at the rated value (Q) R*(10:)=W(100)R:
The resistance given in the standard platinum resistance temperature calculation certificate is: The standard platinum resistance group starts at 100°C and the rate of change of resistance with temperature (generation), (dd:,=037
The thermal resistance is calculated by the following formula:
Platinum resistance:
2a = g .00851
Pin resistance:
The resistance value of the three-phase thermal resistor is R. The following formula is used for calculation: 19
2R·R2
Test: R, and R, respectively represent the test specified in 11.2.2 of this regulation, R, represents the internal lead of one pole, and represents the internal lead resistance of two poles. The R () of the thermal resistor is calculated by referring to the length (100 core) method using the graduation table. After the lower limit temperature test, the actual value of the group is calculated by the formula 21
.. FR(T): - R(OT?I.0031kOT) Six calibration result processing and determination period
226 Grade A thermal resistor is taken to the third decimal place, the temperature coefficient is taken to the fourth decimal place, the speed coefficient is taken to the seventh decimal place, 22,1 For thermal resistors that meet the requirements of Article 1, they are deemed not to meet the requirements, 22.1 When the resistance coefficient of the thermoelectric element exceeds the allowable value, but is 0%, 100% and the upper limit temperature point are in compliance with the regulations, the thermoelectric element is judged to be qualified and is deemed to be qualified. 23 After calibration, the temperature sensing element that meets the requirements of this regulation will be issued a calibration certificate: if it does not meet the requirements of this regulation, a calibration result notification card will be issued.
24 Thermoelectric resistors shall be determined according to specific conditions. The length of the order shall not exceed 1 year. Appendix]
Format on the back of the calibration certificate
Yiding Folding Le
With pool explosion-proof emulsion
:1001,
School of Law
Good Business Station
Taiwan Guizhong
(EN: Year*
() t(
... ....
Office Pressure No. Ptin
1 3 552
Appendix 3
Industrial thermal resistor (1t10) graduation table
.2.521
11 243
13 20k
13 46-
14 247
r1 32=
13 $21
11 747
. T41
.1.512
It 563
13 9132
Make the thermal resistor at the lower limit temperature 250] (name) If the lower limit temperature of the thermal resistor under test is lower than the temperature of the test point, take the quick action point 12.3
as the test temperature! Then let it bootstrap to rise to room temperature. 12.4 Measure the average resistance value of the 20C thermoelectric anode (ot: 25. The test results are as follows:
When the bird bridge is measured for testing
13 The temperature in the freezing point grid 1. According to the following formula: f, a dtr-
In: RR,—R (Or:
R,R*tot
represents the standard current limiting meter at temperature, and the low output resistance value (α); 965
#(0t:)-R1.0000398
ball quasi-platinum electric current at the water phase point resistance gate, standard steel resistance temperature full-time self-group change rate with temperature R-.003
good control resistance "Ot:) is calculated according to the following formula: 14
R (oU)R, -(eRd),-ut,
一:-plate will be used for thermoelectric use, the electrical value at the time (0): (R)-the rate of change of the positive with temperature in the tested thermal resistor (thermal positive (R=
for copper thermal resistor (d/dr>-.M428t)
++ k' fut)-
the resistance value of the test thermoelectric in the machine (
the shrinkage difference E of the test thermoelectric at D℃ is calculated according to the formula: Eo -IRo) -R'ToCJj(dRdi?,-
the k10Ut of the picked up thermal resistor: is calculated according to the formula: R(100T-RtKA), WA
output:
the resistance value of the test thermoelectric at the boiling point of water into oil temperature (: (R-. A test thermoelectric resistance value at 10 with temperature change ratio () for the busy thermoelectric 1dR/d:): Lm=U,M379R((t) for the thermoelectric (R/d:),--D.0J428R(t:)-(RR(00TR-
W(100)
standard platinum Figure thermometer in the business! Fandian diagram letter): (5)
The R value is calculated to get the standard platinum power gate at the ratio of the electrical limit (Q) R*(10:)=W(100)R:
The standard platinum resistance temperature is calculated in the certificate of the resistance of the standard platinum group starting charge meter at 100 when the current changes with temperature (generation), (dd:, =037
The following formula for breaking the thermal resistance of the market is calculated
-ER100C)R(0X:)I/100R(L:)
The thermal resistance is calculated by the following formula:
Platinum:
2a = g.00851
Pin resistance:
The resistance value of the three-phase thermal resistor is R. Then the following formula is used for calculation: 19
2R·R2
Test: R, and R, respectively represent the test specified in 11.2.2 of this regulation, R, represents the internal lead of one pole, and represents the internal lead resistance of two poles. The R () of the thermal resistor is calculated by referring to the length (100 core) method using the graduation table. After the lower limit temperature test, the actual value of the group value (using temperature to express the minimum) is calculated by the following formula: 21
.. FR(T): - R(OT?I.0031kOT) Six calibration result processing and determination period
226 Grade A thermal resistor is taken to the third decimal place, the temperature coefficient is taken to the fourth decimal place, the speed coefficient is taken to the seventh decimal place, 22,1 For thermal resistors that meet the requirements of Article 1, they are deemed not to meet the requirements, 22.1 When the resistance coefficient of the thermoelectric element exceeds the allowable value, but is 0%, 100% and the upper limit temperature point are in compliance with the regulations, the thermoelectric element is judged to be qualified and is deemed to be qualified. 23 After calibration, the temperature sensing element that meets the requirements of this regulation will be issued a calibration certificate: if it does not meet the requirements of this regulation, a calibration result notification card will be issued.
24 Thermoelectric resistors shall be determined according to specific conditions. The length of the order shall not exceed 1 year. Appendix]
Format on the back of the calibration certificate
Yiding Folding Le
With pool explosion-proof emulsion
:1001,
School of Law
Good Business Station
Taiwan Guizhong
(EN: Year*
() t(
... ....bZxz.net
Office Pressure No. Ptin
1 3 552
Appendix 3
Industrial thermal resistor (1t10) graduation table
.2.521
11 243
13 20k
13 46-
14 247
r1 32=
13 $21
11 747
. T41
.1.512
It 563
13 9132
Make the thermal resistor at the lower limit temperature 250] (name) If the lower limit temperature of the thermal resistor under test is lower than the temperature of the test point, take the quick action point 12.3
as the test temperature! Then let it bootstrap to rise to room temperature. 12.4 Measure the average resistance value of the 20C thermoelectric anode (ot: 25. The test results are as follows:
When the bird bridge is measured for testing
13 The temperature in the freezing point grid 1. According to the following formula: f, a dtr-
In: RR,—R (Or:
R,R*tot
represents the standard current limiting meter at temperature, and the low output resistance value (α); 965
#(0t:)-R1.0000398
ball quasi-platinum electric current at the water phase point resistance gate, standard steel resistance temperature full-time self-group change rate with temperature R-.003
good control resistance "Ot:) is calculated according to the following formula: 14
R (oU)R, -(eRd),-ut,
一:-plate will be used for thermoelectric use, the electrical value at the time (0): (R)-the rate of change of the positive with temperature in the tested thermal resistor (thermal positive (R=
for copper thermal resistor (d/dr>-.M428t)
++ k' fut)-
the resistance value of the test thermoelectric in the machine (
the shrinkage difference E of the test thermoelectric at D℃ is calculated according to the formula: Eo -IRo) -R'ToCJj(dRdi?,-
the k10Ut of the picked up thermal resistor: is calculated according to the formula: R(100T-RtKA), WA
output:
the resistance value of the test thermoelectric at the boiling point of water into oil temperature (: (R-. A test thermoelectric resistance value at 10 with temperature change ratio () for the busy thermoelectric 1dR/d:): Lm=U,M379R((t) for the thermoelectric (R/d:),--D.0J428R(t:)-(RR(00TR-
W(100)
standard platinum Figure thermometer in the business! Fandian diagram letter): (5)
The R value is calculated to get the standard platinum power gate at the ratio of the electrical limit (Q) R*(10:)=W(100)R:
The standard platinum resistance temperature is calculated in the certificate of the resistance of the standard platinum group starting charge meter at 100 when the current changes with temperature (generation), (dd:, =037
The following formula for breaking the thermal resistance of the market is calculated
-ER100C)R(0X:)I/100R(L:)
The thermal resistance is calculated by the following formula:
Platinum:
2a = g.00851
Pin resistance:
The resistance value of the three-phase thermal resistor is R. Then the following formula is used for calculation: 19
2R·R2
Test: R, and R, respectively represent the test specified in 11.2.2 of this regulation, R, represents the internal lead of one pole, and represents the internal lead resistance of two poles. The R () of the thermal resistor is calculated by referring to the length (100 core) method using the graduation table. After the lower limit temperature test, the actual value of the group value (using temperature to express the minimum) is calculated by the following formula: 21
.. FR(T): - R(OT?I.0031kOT) Six calibration result processing and determination period
226 Grade A thermal resistor is taken to the third decimal place, the temperature coefficient is taken to the fourth decimal place, the speed coefficient is taken to the seventh decimal place, 22,1 For thermal resistors that meet the requirements of Article 1, they are deemed not to meet the requirements, 22.1 When the resistance coefficient of the thermoelectric element exceeds the allowable value, but is 0%, 100% and the upper limit temperature point are in compliance with the regulations, the thermoelectric element is judged to be qualified and is deemed to be qualified. 23 After calibration, the temperature sensing element that meets the requirements of this regulation will be issued a calibration certificate: if it does not meet the requirements of this regulation, a calibration result notification card will be issued.
24 Thermoelectric resistors shall be determined according to specific conditions. The length of the order shall not exceed 1 year. Appendix]
Format on the back of the calibration certificate
Yiding Folding Le
With pool explosion-proof emulsion
:1001,
School of Law
Good Business Station
Taiwan Guizhong
(EN: Year*
() t(
... ....
Office Pressure No. Ptin
1 3 552
Appendix 3
Industrial thermal resistor (1t10) graduation table
.2.521
11 243
13 20k
13 46-
14 247
r1 32=
13 $21
11 747
. T41
.1.512
It 563
13 9131 When the deviation of the resistance coefficient of the thermoelectric exceeds the allowable value, but the values ​​of 0%, 100% and the upper limit temperature points are in compliance with the allowable value, the thermoelectric is judged to be qualified and is considered to be qualified. 23 A calibration certificate will be issued to the temperature sensing components that have been verified to meet the requirements of this regulation: if they do not meet the requirements of this regulation, a calibration result notification card will be issued.
24 Thermoelectric resistors shall be determined according to specific conditions. The length of the order shall not exceed 1 year. Appendix]
Format on the back of the calibration certificate
Yiding Folding Le
With pool explosion-proof emulsion
:1001,
School of Law
Good Business Station
Taiwan Guizhong
(EN: Year*
() t(
... ....
Office Pressure No. Ptin
1 3 552
Appendix 3
Industrial thermal resistor (1t10) graduation table
.2.521
11 243
13 20k
13 46-
14 247
r1 32=
13 $21
11 747
. T41
.1.512
It 563
13 9131 When the deviation of the resistance coefficient of the thermoelectric exceeds the allowable value, but the values ​​of 0%, 100% and the upper limit temperature points are in compliance with the allowable value, the thermoelectric is judged to be qualified and is considered to be qualified. 23 A calibration certificate will be issued to the temperature sensing components that have been verified to meet the requirements of this regulation: if they do not meet the requirements of this regulation, a calibration result notification card will be issued.
24 Thermoelectric resistors shall be determined according to specific conditions. The length of the order shall not exceed 1 year. Appendix]
Format on the back of the calibration certificate
Yiding Folding Le
With pool explosion-proof emulsion
:1001,
School of Law
Good Business Station
Taiwan Guizhong
(EN: Year*
() t(
... ....
Office Pressure No. Ptin
1 3 552
Appendix 3
Industrial thermal resistor (1t10) graduation table
.2.521
11 243
13 20k
13 46-
14 247
r1 32=
13 $21
11 747
. T41
.1.512
It 563
13 913
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