GB/T 3387-1992 Performance evaluation method for moving coil indicators for industrial process measurement and control systems
Some standard content:
.1DC 63-.2- 53.082.74 : 621-503N
National Standard of the People's Republic of China
G3387—92
Methods of evaluating the performanceof moving coil indicators for industrial process measurement and control systems1992-02-19 Issued
Implemented on 1992-10-01
State Administration of Technical Supervision
National Standard of the People's Republic of China
Methods of evaluating the performanceof moving coil indicators for industrial process measurement and control systemsMetlucs uf evnluating the pertormuaceuf irusiag ewil indieslurs tor industrial-process mcusuremenland euairoi systems1 Subject content and scope of application
G 338792
Generation ￥G[ 33B7.E2
This standard specifies the main performance parameters, test conditions and performance evaluation of dynamic indicators for industrial process measurement and control systems.
Standard application - Dynamic indicators for industrial process measurement and control systems (hereinafter referred to as "dynamic indicators"): Instruments are connected to a series of dynamic indicators, transmitters or other technical instruments to receive the following signals: Thermocouples:
Actual voltage transformers:
Capable of transmitting direct current, other types of resistors, etc.
The instruments are suitable for use under normal working conditions. 2.1 Test conditions 2.1.1 Standard atmospheric conditions Relative humidity: 6 kPa Normal atmospheric pressure: 101.3 kPa 2.1.2 Overall test conditions The reference energy of the test piece shall be tested under the following atmospheric conditions: Relative humidity: 66%~70% Use a thermal conductivity, a five-temperature transmission or other special instrument, and its reference atmospheric conditions shall comply with the relevant requirements. 2.1.3° section test method 4 criteria
When the test cannot be carried out without the need for full scale. The actual selection of atmospheric pressure: National Technical Supervision Bureau 1992-02-19 approved 1952-10.01 actual compensation
15--35
Relative stability: 45%~751
atmosphere, 86~106
A 3387- 92
During each test, the maximum rate of change of temperature shall be fixed at a certain temperature. 2.1. Other environmental conditions
Except for the above-mentioned case, the test shall also be carried out under the following environmental conditions: field: In addition to the specified magnetic field, other external magnetic fields shall be small enough to be negligible: the machine shall be fine and the movement shall be small enough to be negligible. 2.2 Conditions
2.2.1 The operating value
is in accordance with the relevant standards or values specified by the factory
2.2.2 Limit drop
Number: +1%
Less than 5 true waves (converter power supply)
Less than: 2 DC current
3 General provisions for tests
3.1 The instrument manufacturer shall consult the manufacturer's manual, any relevant new instructions, and operate at night. The instrument used with the mobile phone must also have the full-range temperature automatic layer function. Compensation wires and reference terminals must be used during the test. 3.2 Except for the impact test, the instrument should be in normal operation during the test: within the test time of 1. 3.3 Before the test, adjust the machine to zero. Unless otherwise specified in the rescue, adjust the machine again during each test. The test requirements are not divided into light or light instrument requirements: 3.4 Except as otherwise specified in the long-term test, only the working system involved in the test changes within the specified range, and other working parts should remain stable and have good impact on the test after the work is completed. The influence of the meter should be determined on the normal working limit value specified by the relevant standards or the manufacturer. Since the conditional decay plan cannot be tested under the influence of the retrograde under the atmospheric condition, it can be carried out under the atmospheric condition of a mild test. 3.5 The error limit of the test panel system should be stated in the test report and should not be greater than 1/4 of the error limit of the test meter. 3.6 The false meter is heated according to the time specified by the manufacturer to make the internal temperature of the meter stable. If the manufacturer specifies, it is allowed to preheat Sn. 3.7 is otherwise specified in the non-specific provisions. During the test, there should be no obvious fluctuation in the input value, and the gradual change of the input value should be slow enough to ensure that the instrument is stable at any test point.
3.8 During the test, the start signal should be applied to the test meter and the recovery meter at the same time so that the standard instrument reaches the required value. For convenience, the start signal can be adjusted to make the indication of the test meter align with the required main line. After the test, the standard instrument indication is taken.
3.9 In the event of any other test results, the test results shall not be completed. The technical indicators of the meter or the length of the meter shall be as required by the relevant standards or manufacturers. 3.10 The relevant indicators of the test report shall be listed in the test report to clarify. 4 Tests related to precision
.1.1 The test meter and the test equipment shall be stable under normal operating conditions. The test is also expected to be carried out under such conditions, or on the technical basis so that there is no doubt about the test results and it can be ensured that the technical performance requirements related to the structure are met under multiple working conditions. 3387-92
When required, the test is also allowed to be carried out under the general test atmosphere conditions and the filter test is carried out in parallel. However, all possible working conditions that may confirm the test results should be observed and recorded at any time.
4..2 The lower limit value and <or) can be set as the recommended table, and the lower limit value and/or the lower limit value can be adjusted. The difference between the upper and lower limits is the smallest. The test point should be 1.3, and the lower limit value (or its attached certificate is within the control limit) is less than 5 points. The test point is within the range. 4.1.4 During the test, the auxiliary personnel shall use the rated conduction value according to the input range of the test point, 4.15 in the mountain test. The test should be able to use only three energy rings. 4.2 External resistance external shallow electric group
4-2.1 Nominal point
According to the relevant marking or manufacturing method, the nominal point
4.2.2 The upper limit of the input meter is the value of the compensation conductance d
. The instrument with the thermal resistance is ±0.02. The difference between the electrical values of each two conductors shall not exceed (.011.2.3 The limit deviation of the single low-amplifier meter and the meter used with the thermocouple is the nominal value + h. The meter used for the thermocouple is the nominal value of 5. The difference between the full-load electrical value of each conductor shall not exceed 3.0104.3 The measurement ratio cycle
is the error meter in the section. The above and below strokes are one cycle. The main test is at least one cycle. There are single cycles per year. The test report is made by the teacher for each year. The calculated lead value and the indicated value are recorded. 4.4 Assume that the table
: The data obtained from the above three measurement cycles are calculated according to the formula (1>. The error ticket on each test point of each line (). That is, the difference between the actual drop values corresponding to the positive and negative values of the test meter is expressed by the input quantity welding paste negative hundred number as the indicated value: the actual error
, - the measurement standard is online The equivalent of mVA or .l..\-mirror measurement scale line.L please select the actual value of the meter 1 or the actual value of the meter.mV.mA or .---the end point of the scale is the actual value of the meter, mVnA or only:.--the value of the meter on the scale starting point is the value of the meter, nV, mA or gate. The average value of the upper and lower test points and the average value of the difference between the upper and lower test points are calculated, and the total error is listed in Appendix A Table A,
4.E error by line
According to 1., the temperature table of the conditions is used to confirm the error of the meter as a percentage of the range. When the input volume is a fraction of the model, the upper and lower points are given. The upper and lower travel and the average error of the upper and lower travel full difference are shown in Appendix A A1. It is shown with the actual position curve, sensitivity
1.The basic error table of the basic theory of the
meaning of the error table of the media loss, the negative error is determined, see table A1 sticky A2 examples, 4. In order to break the strong difference
night table - the basic error of the white 4.5 record of the direct determination of the said sanction, a special curve is required to be specified, so that it coincides with the average error curve at the lower and upper limits; GH33B/92
b, above, the error time line is selected and the specified physical property line is the same as the error time line. The maximum difference is the base consistency error, the difference between the measured error and the average error of the upper and lower operating points in the table of Figures A1 and A2 is determined by the maximum difference between the upper and lower operating errors in the table of Figures A1 and A2. The maximum difference between the measured error and the average error of the lower operating point in the table of Figures A1 and A2 is determined by the maximum difference between the upper and lower operating errors in the table of Figures A1 and A2. The maximum difference between the measured error and the average error of the upper and lower operating points in the table of Figures A1 and A2 is determined by the maximum difference between the upper and lower operating errors in the table of Figures A1 and A2. The maximum difference between the measured error and the average error of the upper and lower operating points in the table of Figures A1 and A2 is determined by the maximum difference between the upper and lower operating errors in the table of Figures A1 and A2. The maximum difference between the measured error and the average error of the upper and lower operating points in the table of Figures A1 and A2 is determined by the maximum difference between the upper and lower operating errors in the table of Figures A1 and A2. The maximum difference between the measured error and the average error of the upper and lower operating points in the table of Figures A1 and A2 is determined by the maximum difference between the upper and lower operating errors in the table of Figures A1 and A2. The maximum difference between the measured error and the average error of the upper and lower operating points in the table of Figures A1 and A2 is determined by the lower and upper operating errors in the table of Figures A1 and A2. The maximum difference between the measured error and the average error of the upper and lower operating points in the table of Figures A1 and A2 is determined by the lower and upper operating errors in the table of Figures A1 and A2. The rate of change of the centering pad should be constant enough to ensure that the meter under test does not overshoot in any case. 5.2 Self-accumulation
5.2.1 Main power supply changes
When the voltage of the AC power supply changes according to the specified combination, the lower limit value and range of the meter produced by the measurement are changed.
AC power supply,
Nominal value
Public secret
Nominal value
Nominal value within 1
Nominal value within 11%
Nominal value within 85%
Nominal value within 110%
Nominal value within 5
DC power supply,|| tt||Nominal compensation:
, if the amount is calculated, 11C%
the special value of the compensation,
the nominal value
105% of the nominal value
the compensation of the public value
the nominal value
165%
the nominal value of the official letter
10 yuan%
95% of the public value
the nominal value
the nominal value| |tt||In the past, if there is a smaller electric benefit (the limit of the inspection is raised before, the relevant standards of the internal control are specified and public when necessary, the changes in the AC power prohibition test can be simply compared to the discharge combination changes: positive
nominal diameter
. 11% of the standard value
E nominal value symbol 110
d 85% of the standard value
standard value installation
5.2-2 When the power is interrupted
standard value
105% of the standard value
95% of the nominal value
standard reduction value 105% of the nominal value
The purpose of the main test is to determine the transient characteristics and recovery time of the parent table when the specified power supply is cut off and connected to the standby power supply. GR3387-92| |tt||Test time. The instrument indicates the standard point of the sea scale when the data flow is also maintained on the line. It should be interrupted at the safety point or random phase 1.1. The actual time is: 1 center, 25.200, 10Gcms, the false power supply meter, in, 2c200, toa. The following values are prohibited:
The value of the large concentration of positive and negative
1, after the power is turned on, the compensation judgment reaches its steady-state value and maintains the error limit: the required time; and the value of the card changes for a long time,
If the random phase is replaced, the test is repeated 13 times, and the time between the test is at least the same as the main time. If the concentration is changed at the safety point, only 3 tests are carried out, and the maximum value of the test is required. 5.2.3 Power supply low
When the power supply voltage is lowered to 5% of the nominal value, the voltage is kept at 55. The case confirms the size and duration of the transient changes. 5.24 Source
Test line As shown in Figure A, the time is set. Only the pointer of the meter is set on the scale point near the standard line. The power supply voltage is lowered to 5% of the nominal value, and the voltage is kept at 55. The case confirms the size and duration of the transient changes. 5.24 Source
Test line As shown in Figure A, the time is set. Only the pointer of the meter is set on the scale point near the standard line. The power supply voltage is lowered to 55. The power supply voltage is lowered to 55. The voltage is kept at 55. The voltage is kept at 55. The case confirms the size and duration of the transient changes. 5.24 Source
Test line As shown in Figure A, the time is set. Only the pointer of the meter is set on the scale point near the standard line. The power supply voltage is lowered to 55. The power supply voltage is kept at 55. The voltage is kept at 55. The voltage is kept at 55. The case confirms the size and duration of the transient changes. 5.3 Electrical interference
5-3.1 Common mode interference
This test instrument is applicable to the instrument with the terminal connected to the ground. The test question is to determine the influence of the common mode voltage applied between the terminal and the ground on the instrument.
When the common mode interference test starts, only the input signal of the meter should be returned by the signal source without checking the common mode interference. The test line is shown in Figure AA3.
When the test is performed, the meter pointer should be set on the scale line near 10% and 90%. When the -251V voltage with the same rated power as the main power supply is applied to each input and ground in turn, the phase of the interference voltage should be adjusted (0--3) so that the instrument shows the maximum change, and the common mode voltage specified in the relevant standards is less than 50V, and the instrument is replaced by the relevant standards.
When necessary, the current voltage shall be used instead of the AC voltage. The voltage before the test shall be 5 or 1 times the input range (the minimum value of both values shall be the same or the minimum value specified by the control system). The test shall be carried out on the two types of superconductivity. The value of the change ratio shall be observed on the recorder.
5.3.2 Analog interference
In this test, an equal frequency electric cable shall be determined in the center of the cable to verify the effect of the input on the value indicated.
The test circuit is shown in A4.
The European level of the transformer is not used. The transformer is used for aviation or version. "Note that the input signal source of the people is the smallest false design of the electrical components, and the middle current of the box is connected. The net state of the real city is the number of times you hate the resistance of the non-side should be pressed.
When testing, the pointer position of the meter is set to the standard and the time is used to verify the degree of music reduction CB338792
The meter and the test line are disconnected, the period of the letter is determined to be the correct benefit of the cut-level electricity, the large load within the electrical technology standard daily value, etc. The test line is connected to the test meter, and the main supply of the electricity meter (c36) is realized as a passerby. If the price is marked and the official model is lowered, the original standard is controlled. The teaching and primary school are now and the changes in the record are adopted
5.4 dial ground| |tt||This test is only applicable to the instruments which are continuously connected to the ground under the condition of micro-input. Connect each power line terminal to the ground for 3 times. The test equipment and the circuit diagram should be connected in the test cavity to eliminate the influence of the test method. The test volume should be 5.5H. The whole field of the low-voltage power generation should be monitored for 1 year. Note: When the test is carried out in an external narrow magnetic field of 4A/m, the indicator should be set at the midpoint of the scale line. The center of the micro-field should be placed on the turntable. The signal source and the standard should be kept away from the test field for at least 5 minutes. The turntable should be moved for 10 minutes. The test should be adjusted according to the external special field influence (0~60\). The instrument should be in the most unfavorable magnetic field. Only in this way can the lower limit value and the range of performance of the table be measured and calculated. 5.6 External strong
and the thermoelectric code or the heat-sensitive meter with the modified amplifier can be used to make the external electrical line resistance change from the relevant standards or the factory-specified minimum position to avoid the lack of resistance. The maximum value and the range of performance of the table produced by the calculation are as follows. 5-7 Installation should still
During the test, the meter should be avoided from the invasion! The current positive working position is in front of the piece, left, and there are 5".1C or the maximum tilt specified by the manufacturer. The lower limit value and range of performance of the table produced by this are measured and calculated. 5-6 Non-solution meter
During the test, a similar instrument will be separated from the tested instrument by 1 from top, bottom, left, and right. The test is to install the instrument on a 2.5L thick plate, measure and calculate the change of the instrument lower limit value caused by the ratio, 5.10 Mechanical vibration This test is to determine the influence of mechanical vibration on the value of the meter when the meter with an effective amplifier is working. Inversely, it is determined whether the mechanical vibration of the meter can meet the requirements under these conditions. During the test, the pointer of the meter should extend from the midpoint of the scale to the scale line. The meter should be installed on the test machine according to the specified installation method, and withstand the wired sinusoidal vibration on the vertical axis of the meter. The ten lines should be vertical.The vibration table mounting plate and the three-way mounting bracket used to step the instrument should be installed to the minimum transmission agent on the instrument, and the maximum amplitude should not be large enough to produce harmonics. The test is carried out in "stages".
The first stage: I am a good woman trapped in pregnancy.
This stage is only for the new loss of the report or the increase of the report rate and the change of the account to dig the required information for the most complete harmonic control. The report dynamic test will be implemented in the internal version of the standard and the displacement phase value or acceleration amplitude should be selected from the table! Macro installation place
Control work
According to the system room
3387-92
Original three, flat
1G--35
1G --0
60--15t
it board government
take care of the continuous and countable cleaning and elimination of about new/2 times, ask the family system, should be proved! The following uses the industry to show some fast and production car machinery please pregnancy of the first stage: before the test
spotted supervision standardbZxz.net
this table should be placed on three vertical planes and each bear 1 minus the relevant standard of the current movement, which is called a plane and the air is plumb! Towards, the car sea on a plane, the test should be the maximum machine frequency of the first price segment to be tested. If the day inspection is out of harmony, then The third section is to find the most harmonious way and the same frequency range as the machine. The frequency range is the same as the frequency range of the machine. The difference between the two may be due to the following reasons: the ... 11 Over range
Apply the lower limit control signal to the instrument and slowly increase it to 20C% or the overload value, hold for min and then input the signal to the lower limit. After 5 min, only the lower limit value of the meter is measured. 5.12 Ring block temperature
This test should be carried out in a hazard identification test box. The test temperature and test sequence are as follows: -26C,:0C..Es 0.12nC
tC.-10,-23r.+2uG.
The temperature included in the normal working temperature range of the instrument shall not be tested. If the upper and (or) lower limit of the normal working temperature range of the instrument are close to the above temperature, the highest (or) lower end of the normal working temperature range shall be replaced, and the temperature shall be gradually changed. The meter shall remain at the same temperature for a sufficient time (not less than 2h) ) Make the meter heat the agent in the meter at each overflow:
Measure the value of the meter at each overflow, and measure the change of the actual value every 10 hours of temperature change: 5.13 Prove the potential
The meter should be placed under the working conditions of the object for 24 hours, and measure the meter's inherent error, hysteresis and installation position. After heating, put the meter in the selected heat test box. Make the temperature and humidity of the test source step 4.*C and 91%~5, and keep it for at least 48 hours. Within the last 4 hours of the above cycle, turn on the power. After the cycle is cleared, immediately measure the actual value of the meter, and the potential indication value change ratio. After the test, remove the meter from the test, and only record the phenomenon of driving, and the cold water is strong. The instrument should be placed under the working conditions for 24 hours without causing any inherent error, hysteresis and installation position of the instrument. 5.14 Connection and performance test 5.14.1 The purpose of the dynamic test is to ensure that the display changes are only produced immediately after the energy is turned on and within a period of time thereafter. Before the test, the instrument should be placed in a working condition for 21 hours. Do not turn on the power. Then add 10% of the range input to the instrument, 5in, 14h of display voltage. Disconnect the energy and place the instrument under working conditions for 24h. Use GR 3387 92 for 5.14-2. The instrument is required to be operated within the range of 1 hour. Before the test: The instrument should be placed in a working condition under the specified value and 1 hour. The test can be performed by observing and recording the changes of the false values. In the test, the lower limit value of the test is recorded, and the upper limit signal and trace before and after the test are the long-term shift. The long-term shift test of this table can be performed reversibly under the following conditions: a. The upper limit value of the temperature is represented by
b:! The upper limit value of the temperature is 5.15. The value of the center of the test is about the ratio of the main value of the process. The value of the intersection of the scale point and the industry code number is not less than .! Observe that the relevant standards do not stipulate otherwise. The operation should be 10 phases. After the test, the basic error of the table is corrected and the influence of the machine is corrected.
6 Other tests
6.1 Safety
6.1.: Insulation test: Use a megohmmeter with a rated current of Sor;V. During the test, disconnect the power supply, connect the power switch in the on position, and then measure the insulation limits between the following terminals:
Input terminal
Ground terminal
Ground terminal
Input terminal, power supply,
6.1.2 Insulation strength
Insulation strength test: Use a sine wave voltage of 45~55Hz, and the test voltage is measured in Table 2: The nominal value of the voltage is 2V, 5t ~133
>13 -~253
Test voltage.kv
First, set the specified test voltage to 50 kV after the test equipment is empty, and then connect the test instrument. The internal power of the test equipment should be sufficient to make the newly set voltage drop by no more than 1 kV after the meter is connected. During the test, the test voltage should be gradually and steadily increased from zero to the specified voltage, and maintained at 1 kV. No flashover or arcing should occur. Then the test voltage should be steadily decreased to zero, and the power supply can be disconnected. The test should be repeated at the end of 6.1~10 ... 5.2 Break protection expansion
The instrument has a new circuit protection circuit. When the thermal couple is broken, observe and record the position and representation of the pointer of the meter. 6.3 The internal resistance of the instrument used directly with the thermocouple is measured by the compensation method. The calculation is based on the formula (2. Wiring diagram country 1:
GB 3387—92
Inch ladder to 2 when measured if the voltage value:
%—to 3.5 when measured value:
Standard limit:
R,-Instrument inside
Installation ratio according to the book
Student enthusiasm with the use of the limited resistance can be selected on the document through the measurement ball. 6-4 Electric must be before the provisions of the electric and the car public and high electric jade and compensation low bottle machine and record the meter to measure the number of people or test the micro-micrometer.
6.5 Salary output signal
It will be the transmitter or special sensor to walk, the test equipment shows that the world can not. The signal of the test meter should be effective when the test meter starts to change. Machine, the result should be calculated according to the percentage of the special place: 6.5 Transport test
E.5.1 Transport environment
Technical test The performance of the medicine in the packaging condition of the table is likely to be stimulated by the high temperature conditions in the middle. The temperature of the meter is kept at 55°C for at least 4 hours. Then the meter is placed in the reverse low temperature range for at least 4 hours. The above test is repeated at a temperature of 4°C. Note: The normal working return temperature range is higher than 51°C and the environmental temperature test in Clause 5.12 is not required. The three tests mentioned above are not required. 6- 6.2 Continuous oxygen rush out
Put the meter in the packaging according to the requirements of transportation powder infants, and replace the packaging box directly or tighten it with a belt to test the ball drag. The structure should be sufficient. Then make the packaging pins fully subject to the following tests: pulse waveform: nearly ten-mesh sine wave
Power on 10/s
Continuous 3
Pulse rate, ht ~toc times/nin
Appropriate number of shifts: 1GC) 1U test
After the test, take the meter out of the packaging box. The meter is not damaged. The basic error of the meter is missing. The difference and installation position can be left 6.6.3 Self-use drop
00 338792
These test diagrams are intended to determine the instrument's ability to withstand the impact of the instrument on the vehicle during transportation. The instrument should be packed in a transport box according to the transportation requirements. The packaging should be placed on a flat, hard and semi-solid platform or a standing platform. The height of the package should be 3,0 or 100mm according to the relevant standards. The instrument should be transported to the bottom and withstand the national economic policy. After the test, take the instrument out of the packaging and check whether there is any damage to the instrument, the accuracy of the measuring instrument, the hysteresis and the installation test.
7 dynamic characteristics test
71: during the test, the meter can be observed and the final temperature value of the meter can be calculated according to the specified environment.
The meter will start to stabilize and will not exceed the standard time range of 15 minutes before the final operation. 1
Main telephone
GB 33R7--92
Appendix A
(filling parts)
Downward long average setting welcome route
Temporary ticket
Positive downward teaching hall
Common mountain line
Send palm curve
Provincial model method
Figure A2 Power supply when overvoltage micro-test I school schematic diagram tube into Pu source
Positive electric through the heart
Use light to eliminate the temporary road test
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