Some standard content:
[CS 17+200.20
Machinery Industry Standard of the People's Republic of China
JB/T 21671999
Disappearing -- filament optical pyrometer
Disappearing -- filament optical pyrometer1999-08-06 Issued
State Machinery Industry Bureau
2000-01-01 Implemented
JB/T 2167—1999
This standard is a revision of JB2157—7 Disappearing -- filament optical pyrometer>. This standard is different from JB2167--77 in terms of main technical contents, and only editorial changes have been made to the original standard. This standard replaces JB2167--77 from the month of implementation. The reference and Appendix B of this standard are both appendices to the standard. This standard is issued and managed by the National Technical Committee for Standardization of Industrial Process Measurement and Control. The main originator of this standard is the Automation Instrument Factory No. 3 of Shanghai Automation Instrument Co., Ltd. tfanshu
Mechanical Industry Standard of the People's Republic of China
Hidden-filament optical pyrometer
Tlsappearlng-filament optical pyrometerJB/T 2167—1999
Replacement JB277
This standard specifies the basic parameters, technical requirements, test methods, inspection rules, marking, packaging and consumption of hidden-filament optical pyrometers (hereinafter referred to as special pyrometers) for measuring the surface temperature of objects with a temperature range of 800%℃~3200℃ under the application of this standard.
2 Referenced Standards
The texts contained in the following standards constitute the provisions of this standard before they are cited in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and the parties using this standard should explore the possibility of using the latest versions of the following standards. G Japan/T15489-1995 Hongguang Glass Test Method 3 Basic Parameters
Measurement Range and Accuracy Level
The recommended measurement pressure and accuracy level of the pyrometer are specified in Table 1. Table 1
Confirmation of the magic and other equipment
1200~3200
00~200
[200-3200
Note: The manufacturer is allowed to use the latest and most advanced high-precision meters, and the working distance is higher than 0 m.
3.3 Working environment conditions
Grade 2
Grade 1
The pyrometer is suitable for environments with a temperature of 10℃-50℃ and a relative humidity of no more than 85%. 4 Technical requirements
Approved by Beijing Machinery Industry Bureau on August 6, 1999
800-1400
E2G300
12003X31
1809-3200
BC0-1506
12GO2000
1200 2000
18) ~3200
2000 - 01 - 01 Buy application
Basic error and variation
JB,T2167—1999
The basic error and variation of the pyrometer shall not exceed the requirements of Table 2. Table 2
Plant enzyme deficiency requirements
Sweet weight commercial time
800~1440
1200 -2000
1800-3200
B00 - 1500
1200~2000
1800~3200
Note: The accuracy level is determined by the allocation level of 900-2D00. 4.2 Impact of environmental attenuation changes
Especially basic error
800-900
900~1400
800 900
900-1500
± 22
Allowable variation
When the ambient temperature deviates from any constant temperature within the range of 20℃±5 and changes to any constant temperature within the range specified in 3.3, the change in the pyrometer indication caused by these factors shall not be greater than [/2 of the absolute value of the allowable basic error] for every 10℃ change in temperature. 2.4.3 External magnetic influence
In the external magnetic field influence with a magnetic field strength of 4004/m formed by direct current, at the most extreme magnetic field, the change in the pyrometer indication shall not exceed that specified in Table 3.
Precision level
4.4 Influence of tilt
No indication (scale length pressure required)
For a pyrometer with a central measuring system and an optical system, the indicator shall be tilted 45° in any direction from the specified working position; for a pyrometer with a central measuring system and an optical system separated from the optical system, the change of the indication value shall not exceed 12% of the absolute allowable basic error when the indicator is tilted 20° in the horizontal direction. 4.5 Adjustment range of the pyrometer eyepiece
The adjustment range of the pyrometer eyepiece shall not exceed: 4 diopters. 4.6 Cell
4.6.1 The extinguished part of the pyrometer bulb filament shall be in the center area of the field of view, and the diameter of this area shall be less than 1/3 of the diameter of the field of view. 4.6.2 After the pyrometer bulb is continuously energized for 10% of the upper limit temperature, the change of its characteristics measured at 1100℃ shall not exceed ±5T. 4. Red filter and absorption glass
4.7.1 The effective wavelength of the altimeter is 0.66m0.01m, see the appendix (standard appendix). 4.7.2 The change of the high-mix or weak-value support of the absorption glass within the specified measurement range should not be more than 3×10-/℃ 4.7.3 The red filter and absorption glass should be able to freely introduce and remove the standard field and be fixed in various positions. 4.8 Electrical measurement system
The electrical contact of the electrical reading system of the altimeter should be good and can evenly read the brightness and indicated temperature of the altimeter bulb. 4.9 Appearance
JB/T 2167--1999
4.9.1 The altimeter's external parts and components should have good surface treatment and should not be rusted, damaged or sensitive. 4.9.2 The text, numbers and symbols of the scale and ruler should be clear and clear, without defects and defects that affect the reading. 4.9.3 The optical system should have a clear image, and there should be no obvious dust and dirt in the field. 4.10 Insulation resistance
When the ambient temperature is 5°C ~ 35°C and the relative humidity is not more than 85%, the insulation resistance between the high-frequency circuit and the transformer should be not less than F5Hn.
4.11 High and low temperature performance
The high-temperature meter with light packaging should be able to withstand the test of being stored in an environment with a temperature of +60°C and =40% without damage: after the test, the high temperature should still meet the requirements of 4.1, 4.4, 4.5, 4.6 and 4.10. 4.12, resistance to shock
The high-temperature meter with light packaging should be able to withstand the test of 100m/s, impact rate of 80 times/m-120 times/m, and lasting 1000 times without damage. After the test, the high temperature gauge should still meet the requirements of 4.1, 4.4.4.6.1.4.8 and 4.9. 5 Test method
5.1 Basic error and variation test
5.1.1 Basic error and variation test, the pyrometer should be placed in the following environmental conditions: temperature is 20% + 5%, relative humidity is not more than 85%a
b) The pyrometer is in the normal working position;
There is no other external magnetic field or ferromagnetic material around the pyrometer. e
5.1.2 The test of basic error adopts the method of comparison with the second-class standard temperature lamp, and the wiring is as shown below. In the R
area: P—electrical instrument (accuracy should not be less than ±0.05%): L—second-class standard temperature lamp;
B—thermal fluid power supply, output current 0.1A~30A, current stability 0.00)1/arun; R—0.05-class standard electric current 0.101Q. The maximum allowable power is not less than 0.4W. or 0.010. The average power is not less than 45.1.3 The verification steps are as follows:
a! Install the high-frequency meter on the left adjustment bracket, connect the appropriate power, and adjust the temperature lamp current to make the temperature of the high-frequency meter reach 110YC. b) Adjust the eyepiece and pin of the commercial thermometer so that the image of the band at the temperature lamp mark is on the plane of the working part of the pyrometer filament;! According to the temperature lamp calibration certificate, adjust the temperature lamp voltage to its brightness temperature of R0%. After 10 minutes, use the pyrometer to measure four times in the forward and reverse directions (when measuring another temperature in turn, the temperature lamp measurement time can be shortened to 2 minutes to 3 minutes). The difference between the average value of the measurement and the original value is the basic error, and the maximum difference between each change is the variation. Using the same method, measure one point every 10)°C from B0°C until the upper limit of the high-range measurement is reached.
5.1.4 When the upper limit of the pyrometer is higher than the upper limit of the second-class standard temperature lamp, the following calculation method is used to obtain the basic error of the high range 3.1.3 Step 1: Determine the basic data for each 100°C measurement and show the relationship between the actual temperature and the measured value. b. Introduce high-range absorption glass, and measure the three indicated values corresponding to the low-range measurement at 200°C below the upper limit of the temperature lamp. Each time [00°C, the actual temperature value is obtained on the curve of the relationship between the indicated value and the actual value. The absorption glass deduction value of the measured range is calculated according to formula (1): = +273-++273
Where: - the value of the leakage lamp. Also;
JB/T2167-1999
, - after introducing the absorption glass of the high range, the actual temperature value corresponding to the low range. ) The A value obtained by formula (1), that is, A,4+,4, the difference is not greater than 3×106/℃ (see 4.7.2). l) Use formula (2) to calculate the average value of A:
Aramd+d++ds
e) Special A is subject to the integral value of the high range (substituting into formula (3), the actual temperature value of each corresponding low range can be calculated, that is: =
hundred+273+4year
or the value found in the appendix of the standard), -273
fThe corresponding sieve value found in the relationship curve between the indicated value and the actual value looks at the indicated value) The integral of the corresponding high range sampled value and the high humidity measurement point is the basic error of the point. 5.2 Test on the effect of ambient temperature change
First, determine the indications of the pyrometer at 1000℃, 1200℃ and 1400℃ according to the method of 5.1 at any constant temperature within the range of ambient temperature 20℃+5℃. Then, put the pyrometer into a constant temperature box 10℃ and 20℃ higher than the constant temperature respectively, keep it in motion, then put it into the measuring thermostat and measure the indications at 1000℃, 1200℃ and 1400℃ again. The difference in the indicated value for each 10℃ change in ambient temperature at each measuring point is the effect of ambient temperature change.
5.3 External inductive field effect test
Put the pyrometer in the field line, adjust the pointer of the pyrometer electrical measurement system to the scale range of 50% and 0 points respectively, and rotate the magnetic field and pyrometer while maintaining the current unchanged, so that the change of the pointer on the scale is the maximum. This change is the effect of the external magnetic field.
5.4 Low resolution test
Put the pyrometer in the normal working position, adjust the pointer of the electrical system to the scale of 50% and 90% points respectively, and then pull the pyrometer to the four directions at the specified angles. The maximum change of the pointer indication is the shadow. 5.5 Measurement adjustment range
The solar mirror adjustment range adopts the standard of more than ±4 corresponding light. Adjust the filament of the pyrometer to about 1100℃. First adjust the position of the thermometer. Adjust the thermometer to the position of the thermometer lens. When the image of the filament in the thermometer is clear, stick one end of the objective lens to the eyepiece of the thermometer. Adjust the thermometer eyepiece to the limit position. Then adjust the eyepiece of the thermometer to make the image of the filament clear. Then take the photometric value. Read the photometric value of the limit position of the thermometer in the same way. 5.6 Inspection and test of lamp bulbs
5.6.1 The inspection of the position of the lamp filament is carried out by the daily inspection method. 5.6.2 The test of lamp characterization is as follows;
, disconnect the thermometer lamp lead from the electric train, and connect it in series with a 0.1° standard resistor, a sliding resistor and a 3° DC power supply. Connect the standard resistance measurement end to the electric measuring instrument to ensure that it is not less than ± 0.05%. b) According to the method of 5.1, read the current value of the lamp at 1000℃, 1100℃ and 120℃ and the upper limit temperature of the lamp, and calculate the i/: value at 1100℃ (where i is the current and 4 is the temperature). Continuously multiply the lamp pool by the current value at the upper limit temperature of the lamp. d) Continue with the method of 5.1 and read the current value at 1100℃. e) Calculate the difference between the average value of the lamp current before and after power-on at 1100℃, and convert it into a temperature value according to the calculated △/value. This value is the change value of the lamp pool characteristics.
5.7 Test of red filter and absorption change
5.7.1 The test of the spectral characteristics of the red filter shall be carried out in accordance with the provisions of GB/T15489. 5.7.2 The test of the absorption change shall be carried out in accordance with a)~1 of 5.1.4. 2167--1999
5.7.3" The red light sheet and the receiving glass are introduced, drawn out and positioned by visual inspection. 5.B Inspection of the electrical measuring system
The electrical measuring system is inspected by daily inspection. 5.9 Appearance age inspection
The appearance of the pyrometer is inspected by monthly inspection. 5.10 Determination of continuous resistance
Determine with a photometer with a constant DC voltage of 50V. 5.11 Test of high and low temperature resistance during transportationwww.bzxz.net
Place the packaged pyrometer in a constant temperature chamber of -4°C or +6°C for 8 hours respectively. After each removal, let it dry naturally (not less than 24 hours). The test is carried out according to the test methods of 5.1, 5.4, 5.8.5.9 and 5.10. Measure and check the basic error and variation, oxygen inclination effect, electrical measurement system, appearance and insulation resistance of the pyrometer according to the method.
5.12 Anti-transportation instability test
Put the pyrometer that has been properly packaged on the transport instability test table and perform 1000 instability tests according to the speed and size specified in 4.12. After the test, measure and check the basic error and variation, instability rate, position of the extinguishing part of the bulb filament, electrical measurement system and appearance of the pyrometer according to the test methods of 5.1.5.4, 5.6.1, 5.8 and 5.9. 6 Inspection rules
6.1 Factory inspection
Each manufacturer's thermometer must pass the factory inspection and be accompanied by a product certificate before it can leave the factory. It should be carried out in accordance with the requirements of 4.1, 4.4, 4.6.1, 4.7.3, 4.8.4.9 and 4.10 and the methods of 5.1, 5.4, 5.6.1, 5.7.3.5.8, 5.9 and 5.10.
6.2 Type inspection
Production thermometers should be subjected to type inspection in accordance with all technical requirements and test methods of this standard. Production thermometers should be subjected to type inspection regularly, and at least three samples should be inspected each time.
7.t Marking
The thermometer should be marked with:
Package) Marking of the relationship between the absorption position and the range: b) Marking of the direction of the variable current increase or liquid F Symbol for the specified working position: ||t t||) Symbols or texts for the polarity of the terminals and the connection pairs: e) Product name and weight number:
F) Product number:
g! Manufacturer name or factory mark
h) Number of this standard;
i) Accuracy level;
i Year and month of manufacture,
2.2 Packaging
2.1 The pyrometer should be tightly packed with qualified product probes and dryers, and placed in an instrument box with a soft case together with the instruction manual. The outer packaging should be padded with soft lining to ensure that the pyrometer will not be damaged during transportation. 2.2 The outer packaging box should have indelible marks: "upward" or "precision instrument", "handle with care", "keep away from" and other words. 3
JB/T2167—1999
The pyrometer should be placed in a box with an ambient temperature of 040°C and a relative humidity of no more than 85%. The indoor air should not contain substances that may harm the pyrometer.
JB/T2187—1899
(Appendix to the standard)
Calculation of effective wavelength of pyrometer and specifications of colored optical glass 41 The formula used for the effective wavelength of the pyrometer is shown in formula [A1]; Bitnad
where: E,(T) =GM-e-
G = 3. 7405 × 10-FJ - mr /6:Cz= 1.4388 cm - K;
e=2.718 (base of the logarithm of self-heating).
>Take 550mm→720rum,dh = Srim
TTake T,=1173K,T±1373K.7,=1573K,,=1773K. , is the light wax transmittance of the red filter, and is the viewing function.
A2 Red light sheet specifications are:
Thickness d=2mm±0.m
Slope length of spectral transmittance boundary 246nm±5run; Slope of light density curve 1.2
720Absorption coefficient E~<0.01, calculated by formula (A1), its effective wavelength is within the range of 0.66Mm±0.01m, and the absorption glass is recommended to use colored optical glass with spectral characteristics as described in A1: A3
Acid coefficient
0.68 - 1.02
0.64 -0.96
0.58 - 0.88
1.05- 1.30
JB/T2167—1899
Appendix B
(Standard Appendix)
Value table
A ×10*%
1944,4
A k10\/C
1660,B
1441:1
JB/T2167—1889
Table (end)
Chengwuhui
1679,9
1939,7
A × 10*/℃
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