Some standard content:
The People's Republic of China National Metrology Verification Regulation JJG924—1996
Torque and Speed Measuring Device
TachoTorgueMeasuringDevice
1996 —11—12 Issued
1997-05-01 Implementation
State Bureau of Technical Supervision Issued
11G9241996
Torque and Speed Measuring Device
Verification Regulation nf
TachuforgueMeasuringDevice
JJG 924—1996
This inspection regulation was approved by the State Technical Supervision Bureau on November 12, 1996, and will be implemented from May 1, 1996.
Responsible unit: Technical Supervision Bureau of Sichuan Province
Drafting unit: Bingye 396 Regional Planning and Reform Station The drafting unit is responsible for interpreting the technical provisions of this regulation The main drafter of this regulation:
Weipianrong
Yiga Drafter:
Cang Xuexiang
Cao Jiuren
JJG 924 -1996
(Ordnance Industry Corporation 29th Regional Measuring Station) (Ordnance Industry Corporation 298th District Metrology Station) (Ordnance Industry Corporation 296th Regional Measuring Station) (Eastern Instrument Industry Corporation 296th Regional Metrology Station) 2
Technical requirements
Verification conditions
Verification preparation and verification method
Verification result processing and verification cycle
JJ No. 924—1996
Appendix 1
Format of the verification certificate (back) of the short-speed measuring device 2 Format of the verification certificate of the short-speed measuring device ()
JG 924—1996
Verification Procedure for Torque and Speed Measuring Devices
This procedure is applicable to the verification of digital torque and speed measuring devices that are newly manufactured, used, and repaired. Other types of torque and speed measuring devices can be verified in accordance with this procedure. 1. Overview
The torque and speed measuring device consists of a speed sensor (hereinafter referred to as the sensor) and a torque and speed measuring instrument (hereinafter referred to as the measuring instrument). It is mainly used to measure the torque and speed of various engines, motors, fans, compressors, hydraulic units, hydraulic separators, gear boxes and auxiliary gears, and calculate the minimum power of the machine according to the power formula. 2. Technical requirements
1 The torque and speed measuring device should have a brand. The brand should indicate its name, model, specification, and size. The torque and speed measuring device and its accessories shall be complete and shall not have any defects that affect the technical performance. The accessories shall be complete and shall not be replaced at will. The transparent materials of the wheel speed measuring device shall not have any scratches or glossy images that may affect the reading. The electrical equipment of the torque and speed measuring device shall be safe and reliable without any electric shock. The insulation resistance between the output line of the sensor and the casing shall be greater than 10M, and the insulation resistance between the power line of the measuring instrument and the machine shall be greater than 10M. The alarm shall be sensitive and reliable. When the torque and speed measurement value exceeds the set value, it shall be activated immediately. All buttons of the torque and speed measuring device shall be firmly and reliably installed. It shall have the function of setting and adjusting the speed, number of teeth and coefficient.
6 The minimum digital increment of the torque tester display value is 110\ or 2×10,×10\, where is a positive integer, negative integer or . Each gear should include the zero point and maximum value of the marking range. And there should be a sign indicating the lower inverse value less than zero (for example: displayed with the symbol "+" or "". The effective minimum mathematical increment should meet the requirements determined by formula (1):
Formula: T-rated speed value of the sensor, N·m and the corresponding accuracy level
The safety of the sensor can be no less than 12 times the rated torque. 8 The accuracy level classification and main technical indicators of the torque and speed measurement device are listed in 1. 9 Other relevant technical characteristics of the torque and speed measurement device should meet the requirements of the technical standards. (1)
Torque error Wr/FS
Torque expansion uncertainty rate /
Torque error W,/FS
Speed expansion uncertainty [./FS
[Zero point source shift Z./F5
National error Z./FS
Torque adjustment SF
JI: 924—1996
Change of relative torque of the shaft FS
Change of the shaft axis caused by the change of the shaft ES I change of the non-rotating change ZFS
Three verification conditions
10 Environmental conditions
10.1 Rejection (20±51 for 80% of the connection
102 The room should be bright and clean, with no light and shadow for normal operation, no air, liquid, source, magnetism:
10.3 Flashover measuring device voltage: (22(122)V, (338)11 Setting parameters
Standard setting: The measurement uncertainty is 1/ 3 Electronic meter speed standard: The measuring accuracy should not exceed the measured speed. The measuring uncertainty should not exceed 11.2
IV Verification items and verification methods
1? According to the requirements of Article 1 to Article 2 of this regulation, the performance inspection should be carried out: No other items are required. 2
13 The blood will be measured at the same time
JJL:924—1996
13.1 Connect the sensor shaft and the torque device at the same time, and connect the auxiliary horse level to the measuring instrument. Adjust the indicator zero.
132 The measurement point changes, the zero point is forbidden to be z, 1 drop formula (2! Calculate, and the sensor meets the requirement. 100%
In the formula: .——30 m within the maximum torque or speed value of the zero point;> rated torque or speed value.
14 The measurement method of torque change caused by the same auxiliary skin of the cylinder and the shaft (2)
4: 1 set of auxiliary will cause the measurement of the change of the torch is 7: set the display instrument according to the sensor coefficient value and to the value. The stepless speed regulation drag equipment dynamic sensor screen shaft no-load rotation (speed greater than 6T/1nin): drag sensor small electric Kai degree pulley: then the internal porcelain is not rotated, the method of the maximum torque indicator display value: the typical change is calculated according to formula (3) and should meet the requirements of Table 1 Calculate. : e×100%
--the maximum speed indication,
--the minimum speed indication, m
T,--the rated torque value of the transmission end, Nm
14.2 The same oil width of the shaft is known to change the speed. The measurement: the measuring instrument will set the sensor efficiency and the amount of the sensor: the drive of the starting sensor is small and fast, the rotation sensor is auxiliary, the high angle should not be controlled, the torque reading is small and the device is used to read the torque indication. The change should meet the requirements of Table 1. The calculation method reaches the same speed change as the machine 15, and the measurement is 15! On the mountain, otherwise the measurement point is within the specified speed range: at least 5 points, the average value is 5 points. 15.2 Connect one end of the sensor to the stage conditioning equipment socket with a square node. After the sensor coefficient value is determined, start the stage speed regulation device to make the sensor rotate in the positive (negative) direction at no-load; read the torque under different loads, and convert it into the torque in accordance with the formula (4) to meet the requirements of Table 1.
AT×100%
Where:
AT×100%
At the maximum value of the torque jump at the non-standard speed, the measured value is -.16
1%, 1 fast transmission is available in the idle state. (4)
16, 2 When the sensor is at the cold point and the rated torque is applied, the grounding diameter of the material is reduced to a small amount. (People), use the short-turn indicator to observe the changes in the industry, the flexible model 3
calculation, all virtual wear table piano request,
Wuzhong: -- alcohol lever length, m
: reverse short-turn measurement star set difference into patrol filling degree measurement (5)
17.1 The torque measurement range needs to be taught at the rated torque of the part 1 need to start not rated starting value, the measurement point for the fast Chuan is less than 5 points, the shadow manufacturing and after the care of not less than 1 point, each point has a sentence, 17.2 The sensor ratio auxiliary and five know you equipment flash fire real auxiliary series connection. 17.3 The sensor signal is connected to the measuring instrument, according to the sensor standard system value dynamic disk set three: the piece of dynamic transmission on the correct end of the drive small machine, inch load torque indicator small filter adjustment filter Zhao zero point! .4. The light-duty sensor is loaded with a fixed value, which can be 130% of the full value. 3. Make a pre-measurement: After each unloading, check the zero value of the indicator, and read the best value before the pre-load value. 6. Return to zero value, etc. 2. Calculate, the length is in accordance with the requirements of Table 1 x130%
In the formula: 2T with 3 times of pre-cut steps before and after the recommended reading of the five moments left (6)
17.5 First measure the system; (verify, then order the measurement point medical level stable high point rotation, the full value of 110 account - 1 Ding, then carefully remove the level of unloading, calculate the inspection report back to the lifting situation, this column secretion is carried out 5 times, the reading should be after reaching the predetermined rotation short value, the situation when the indicator is stable immediately. Use the method of and return to plan the reverse rotation short value 175 before each change of loading, the indicator will be adjusted to the lifting point: unloading is not allowed during loading, and loading is not allowed:
17.7 Measurement error and uncertainty information according to (7) to (11) calculation goods, and the result meets the requirements of Table 1, (7)
W, -T× 100%
E(TT)
(T) = Um:
UT - 2V(T)+(T)
The total number of loading and unloading measurements at the measuring point is Nm; - the total number of unloading measurements at the measuring point is 12, m, Nr;
The total number of unloading measurements at the measuring point is 10:4
W, --- The difference between the measured values is:
JIG 9241996
一-Measurement point 1 cool column Liu standard not research nearness; Nan Xun torque you accurate installation when the effectiveness of the card according to the development of the card to determine the degree: () a measurement point A and international standard uncertainty: measurement point single transfer wide uncertainty (including cause line 2): a measurement point standard torque value. ·:.
% transfer evaluation birth basic error and uncertainty of the book, 1 new measurement channel and repaired speed measurement world skin should be safe speed meter calibration group for determination: 82 its speed sensor measurement year holiday,! Speed bottom online selection calibration, large speed sensor measurement space no, Sichuan inspection system value, and other speed can be called Jiang external inspection extension, is the method according to Gong Sheng read risk view 183 Xie display point: the heart rule from still: the display value does not necessarily have to be the following 3 points package shot a The value limit of the product can be eliminated
18.1 Before the test product is close to the fixed value, when the reverse measurement device is normal, the measurement is carried out.
18.5 Information inspection and inspection use the standard tachometer as the basis, the degraded speed meter is adjusted to the double-mounted device with a slight rotation, and the speed is slightly adjusted. When each measuring point is wet and a normal code is generated, the speed measurement signal is filtered out. Within the safety limit, a product value is reported for each measuring point, and the test is carried out for times. 18.6 Before the test, the indication point should be released. Once the requirement is met, it should meet the requirements of Table 18.7 The measurement error and the delay of the reverse connection formula (12) (1) are calculated, and it shall meet the requirements of Table 1. (12)
n-x100%
u(）- lm
U, -2() ()
In: - the value of the desired measurement value: ; the sum of the number of measurements of a measuring point for the first time, 1, 2, ., , uin
…; a speed measurement or error;
) - the uncertainty of the measuring point relative to the standard:
JJG 914—1996
The expanded uncertainty of the electronic counting type speed standard device; The uncertainty of the measuring point Class A relative standard;
The expanded uncertainty of the speed at the measuring point (including factor K-2: the nominal speed value of the measuring point, I/min
\n-—rated speed value, I/mins
The measuring point does not have the function of coefficient adjustment, when the ambient temperature after use is not the same as the calibration temperature. According to formula (17), the calibration coefficient of the sensor is corrected, X, = X, [t + e (t - to)]
The sensor coefficient when the temperature is 1:
Formula x,
The sensor coefficient when the temperature is is the coefficient marked on the nameplate. The actual ambient temperature when the measurement is performed, record
The ambient temperature during the last calibration or verification (see the nameplate or verification certificate); the temperature coefficient of the decoupler, the value of which is provided by the sensor manufacturer, (17)
20 Newly manufactured sensors must undergo bidirectional torque verification. For sensors that have been repaired or are in use, unidirectional torque verification is required.
V. Verification result processing and verification cycle
21 The torque speed measuring device that has passed the verification will be issued a verification certificate; the unqualified will be issued a verification result notice: 22 The initial verification cycle of the torque speed measuring device is 3 months, and after two consecutive cycles of verification, the torque speed measuring device will be issued a verification certificate; the unqualified will be issued a verification result notice: 22 The initial verification cycle of the torque speed measuring device is 3 months, and after two consecutive cycles of verification, the torque speed measuring device will be issued a verification certificate; the unqualified will be issued a verification result notice: 22 The initial verification cycle of the torque speed measuring device is 3 months, and after two consecutive cycles of verification, the torque speed measuring device will be issued a verification certificate; the unqualified will be issued a verification result notice: 22 The initial verification cycle of the torque speed measuring device is 3 months, and after two consecutive cycles of verification, the torque speed measuring device will be issued a verification certificate; the unqualified will be issued a verification result notice. After passing the verification, the verification cycle is 1 year. After passing the verification for 3 consecutive years, the verification cycle is 2 years. 6
Appendix
JJG924-1996
Verification certificate for torque and speed measuring device (backward) format 3. Zero difference torque
3. Zero drift: torque
chuan, sensitive valve
5. Variable coaxial products in the starting year 6. Special auxiliary shaft deviation caused by the shortened rotation 7. The change in torque caused by the change in the rotation: positive rotation
8. Rotation range
Measurement error: better than
Expanded uncertainty: better than
9. Speed range
Measurement error: better than
Expanded uncertainty: better than
10. Sensor coefficient value: decalibrated||tt ||Calibration data
Sensor temperature stop coefficient
%FS, speed
%FS, speed
FS (including K=2
Connection timing
%FS (including factor 2)
Appendix 2
Control unit space
American-made only,
Measuring instrument model
Classification number
JJG924—1996
Torque and speed measuring device calibration record format Sensor manufacturing
, Transducer type
Sensor system
. Rated speed cabinet
Standard selection
: Transducer temperature stop system effect
Heat transfer nameplate coefficient
Control registration standard installation inspection extension no shooting degree||tt ||Appearance and performance
You set the point
To r:min
Inspector
Sensor with calibration coefficient
V, standard equipment
rnzin Last calibration month
Start/, this registration! Period
Calibration flow
.%, package factor = 2
%, light transport standard package stomach control development uncertainty| |tt||Pure m speed rn
Same frequency production
Speed change display
Reverse display busy specific
Tested speed indicator reading,
Verified by
Verifier
The teaching change caused by
FaraN-m
Valid until
No load
% The error and uncertainty of the rotation evaluation book are based on the year of birth. 1 The speed measurement of the new and repaired tachometer should be carried out according to the relevant tachometer calibration: 82 The tachometer with a rotation ball sensor should be tested on the year of birth! The speed bottom is selected for online calibration. The measurement space of the large speed sensor is not large. The inspection system is equipped with a system value, and the other speeds can be extended. The inspection method is to follow the specified procedure according to 183 display points: the starting point is still: the displayed value does not have to be below the limit value of 3 points. The product can be purchased at the limit value of
18.1 The measured product is close to the fixed speed value before 1m. When the reverse measurement is normal, the measurement can be carried out.
18.5 Note: The standard speed meter is used as the basis for inspection. The double-level adjustment of the speed meter is used to adjust the speed. The speed is slightly smooth. Wait for each measuring point to generate a normal code, filter out the speed measurement signal, and report a product value for each measuring point within a safety limit. It is carried out again. 18.6 Before the test, the indication point should be released. Once the error is calculated, it should meet the requirements of Table 1. (12)
n-x100%
u()-lm
U, -2() ()
like: - the continuous value of the measured value:; the sum of the number of times the measurement is 1, 2, .,, uin
…a measurement point, the maximum value; a speed measurement or error;
) - the measurement point is not allowed to be stable:
JJG 914—1996
Expanded uncertainty of electronic counting type transfer standard device; Class A relative uncertainty of measuring point;
Expanded uncertainty of speed of measuring point (including factor K-2: nominal speed value of measuring point, I/min
\n—rated speed value, I/mins
The measuring result does not have the function of coefficient adjustment. When the ambient temperature after use is different from the calibration temperature, the calibration coefficient of the sensor is corrected according to formula (17): X, = X,[t + e(t - to)]
Sensor coefficient when temperature is 1:
Formula x,
Sensor coefficient when temperature is is the coefficient marked on the nameplate. The actual ambient temperature when measuring, record
The ambient temperature when last calibrated or verified (see nameplate or verification certificate); The temperature coefficient of the decoupler, the value of which is provided by the sensor manufacturer, (17)
20Newly manufactured sensors must undergo bidirectional torque verification. For sensors that have been repaired or are in use, unidirectional torque verification is required.
V. Verification result processing and verification cycle
21The torque reverse measuring device that has passed the verification is issued a verification certificate; The verification result notice shall be issued if the test result is not qualified: 22 The initial verification period of the torque and speed measuring device is 3 months. After two consecutive cycles of verification, the verification period is 1 year. After three consecutive years of verification, the verification period is 2 years. 6
Appendix
JJG924-1996
Verification certificate of torque and speed measuring device (backward) format 3. Zero difference torque
3. Zero drift: torque
chuan, sensitive valve
5. Variable coaxial products in the first year of rotation 6. Special auxiliary shaft caused by the shortened rotation 7. The change of torque caused by the change of the rotation bow: positive rotation
8. Rotation cabinet range| |tt||Measurement error: better than
Expanded uncertainty: better than
IX. Speed range
Measurement error: better than
Expanded uncertainty: better than
X. Sensor coefficient value: Calibration
Verification data
Sensor temperature coefficient
%FS, speed
%FS, speed
FS (including K=2
Connection timing
%FS (including factor 2)
Appendix 2
Control unit
Made in the United States only,
Measuring instrument model
Classification number| |tt||JJG924—1996
Torque and speed measuring device calibration record format sensor manufacturing
, switch type
sensor Xin system
. Rated switch cabinet
Standard selection
: Heat transfer temperature to stop the mountain system effect
Heat transfer nameplate coefficient
Control book standard installation inspection expansion does not shoot the degree
Appearance and performance
You specify
to r:min
Inspector
Sensor with calibration coefficient
V, standard equipment
rnzin last calibration month period
Start/, this registration! Period
Calibration flow
.%, including factor = 2
%, light transport standard load control development uncertainty
Pure speed m speed rn
Same frequency production
Speed change display
Reverse display busy specific
Tested speed indicator reading,
Verified by
Calibrator
Clarify the speed change caused by
Teaching change
FaraN-m
Valid until
No load
% The error and uncertainty of the rotation evaluation book are based on the year of birth. 1 The speed measurement of the new and repaired tachometer should be carried out according to the relevant tachometer calibration: 82 The tachometer with a rotation ball sensor should be tested on the year of birth! The speed bottom is selected for online calibration. The measurement space of the large speed sensor is not large. The inspection system is equipped with a system value, and the other speeds can be extended. The inspection method is to follow the specified procedure according to 183 display points: the starting point is still: the displayed value does not have to be below the limit value of 3 points. The product can be purchased at the limit value of
18.1 The measured product is close to the fixed speed value before 1m. When the reverse measurement is normal, the measurement can be carried out.
18.5 Note: The standard speed meter is used as the basis for inspection. The double-level adjustment of the speed meter is used to adjust the speed. The speed is slightly smooth. Wait for each measuring point to generate a normal code, filter out the speed measurement signal, and report a product value for each measuring point within a safety limit. It is carried out again. 18.6 Before the test, the indication point should be released. Once the error is calculated, it should meet the requirements of Table 1. (12)
n-x100%
u()-lm
U, -2() ()
like: - the continuous value of the measured value:; the sum of the number of times the measurement is 1, 2, .,, uin
…a measurement point, the maximum value; a speed measurement or error;
) - the measurement point is not allowed to be stable:
JJG 914—1996
Expanded uncertainty of electronic counting type transfer standard device; Class A relative uncertainty of measuring point;
Expanded uncertainty of speed of measuring point (including factor K-2: nominal speed value of measuring point, I/min
\n—rated speed value, I/mins
The measuring result does not have the function of coefficient adjustment. When the ambient temperature after use is different from the calibration temperature, the calibration coefficient of the sensor is corrected according to formula (17): X, = X,[t + e(t - to)]
Sensor coefficient when temperature is 1:
Formula x,
Sensor coefficient when temperature is is the coefficient marked on the nameplate. The actual ambient temperature when measuring, record
The ambient temperature when last calibrated or verified (see nameplate or verification certificate); The temperature coefficient of the decoupler, the value of which is provided by the sensor manufacturer, (17)
20Newly manufactured sensors must undergo bidirectional torque verification. For sensors that have been repaired or are in use, unidirectional torque verification is required.
V. Verification result processing and verification cycle
21The torque reverse measuring device that has passed the verification is issued a verification certificate; The verification result notice shall be issued if the test result is not qualified: 22 The initial verification period of the torque and speed measuring device is 3 months. After two consecutive cycles of verification, the verification period is 1 year. After three consecutive years of verification, the verification period is 2 years. 6
Appendix
JJG924-1996
Verification certificate of torque and speed measuring device (backward) format 3. Zero difference torque
3. Zero drift: torque
chuan, sensitive valve
5. Variable coaxial products in the first year of rotation 6. Special auxiliary shaft caused by the shortened rotation 7. The change of torque caused by the change of the rotation bow: positive rotation
8. Rotation cabinet range| |tt||Measurement error: better than
Expanded uncertainty: better than
IX. Speed range
Measurement error: better than
Expanded uncertainty: better than
X. Sensor coefficient value: Calibration
Verification data
Sensor temperature coefficient
%FS, speed
%FS, speed
FS (including K=2
Connection timing
%FS (including factor 2)
Appendix 2
Control unit
Made in the United States only,
Measuring instrument model
Classification number| |tt||JJG924—1996
Torque and speed measuring device calibration record format sensor manufacturing
, switch type
sensor Xin system
. Rated switch cabinet
Standard selection
: Heat transfer temperature to stop the mountain system effect
Heat transfer nameplate coefficient
Control book standard installation inspection expansion does not shoot the degree
Appearance and performance
You specify
to r:min
Inspector
Sensor with calibration coefficient
V, standard equipment
rnzin last calibration month period
Start/, this registration! Period
Calibration flow
.%, including factor = 2
%, light transport standard load control development uncertainty
Pure speed m speed rn
Same frequency production
Speed change display
Reverse display busy specific
Tested speed indicator reading,
Verified by
Calibrator
Clarify the speed change caused by
Teaching change
FaraN-m
Valid until
No load
The sensor coefficient at temperature is the coefficient marked on the nameplate, which is the actual ambient temperature at the time of measurement. Note
The ambient temperature during the last calibration or verification (see the nameplate or verification certificate); the temperature coefficient of the decoupler, the value of which is provided by the sensor manufacturer. (17)
20Newly manufactured sensors must undergo bidirectional torque verification. Sensors that have been repaired or are in use are required to undergo unidirectional torque verification.
V. Verification result processing and verification cycle bZxz.net
21A verification certificate will be issued to torque and speed measuring devices that have passed the verification; a verification result notice will be issued to those that do not pass the verification: 22The initial verification cycle for torque and speed measuring devices is 3 months. After two consecutive cycles of verification, the verification cycle is 1 year. After three consecutive years of verification, the verification cycle is The period is 2 years, 6
Appendix
JJG924—1996
Torque and speed measuring device verification certificate (backward) format 3. Zero difference torque
3. Zero drift: Torque
Chuan, sensitive valve
5. Variable coaxial products in the starting year 6. Special auxiliary shaft caused by the shortened speed 7. The change of torque caused by the change of the construction: positive rotation
8. Rotation range
Measurement error: better than
Expanded uncertainty: better than
9. Speed range
Measurement error: better than
Expanded uncertainty: better than
10. Sensor coefficient value: calibration
Verification data
Sensor temperature Speed stop coefficient
%FS, speed
%FS, speed
FS (including K=2
connection timing
%FS (including factor 2)
Appendix 2
Control unit space
American-made only,
Measuring instrument model
Classification number
JJG924—1996
Torque speed measuring device calibration record format sensor manufacturing
, turning point type
Sensor Xin system
. Rated speed cabinet
Standard selection
: Heater temperature must stop system effect
Heat transfer nameplate coefficient
Control registration standard installation review extension does not shoot fixed speed
Appearance and performance| |tt||Your fixed point
to r:min
calibrator
sensor with calibration coefficient
V, standard equipment
rnzin last calibration month
start/, this registration! Period
calibration flow
.%, including factor = 2
%, light transport standard equipment stomach control development uncertainty
pure m speed rn
same frequency production
speed change display
reverse display busy specific
inspected speed indicator reading,
calibrator
speed change caused by
teaching change
FaraN-m
valid until
no load
The sensor coefficient at temperature is the coefficient marked on the nameplate, which is the actual ambient temperature at the time of measurement. Note
The ambient temperature during the last calibration or verification (see the nameplate or verification certificate); the temperature coefficient of the decoupler, the value of which is provided by the sensor manufacturer. (17)
20Newly manufactured sensors must undergo bidirectional torque verification. Sensors that have been repaired or are in use are required to undergo unidirectional torque verification.
V. Verification result processing and verification cycle
21A verification certificate will be issued to torque and speed measuring devices that have passed the verification; a verification result notice will be issued to those that do not pass the verification: 22The initial verification cycle for torque and speed measuring devices is 3 months. After two consecutive cycles of verification, the verification cycle is 1 year. After three consecutive years of verification, the verification cycle is The period is 2 years, 6
Appendix
JJG924—1996
Torque and speed measuring device verification certificate (backward) format 3. Zero difference torque
3. Zero drift: Torque
Chuan, sensitive valve
5. Variable coaxial products in the starting year 6. Special auxiliary shaft caused by the shortened speed 7. The change of torque caused by the change of the construction: positive rotation
8. Rotation range
Measurement error: better than
Expanded uncertainty: better than
9. Speed range
Measurement error: better than
Expanded uncertainty: better than
10. Sensor coefficient value: calibration
Verification data
Sensor temperature Speed stop coefficient
%FS, speed
%FS, speed
FS (including K=2
connection timing
%FS (including factor 2)
Appendix 2
Control unit space
American-made only,
Measuring instrument model
Classification number
JJG924—1996
Torque speed measuring device calibration record format sensor manufacturing
, turning point type
Sensor Xin system
. Rated speed cabinet
Standard selection
: Heater temperature must stop system effect
Heat transfer nameplate coefficient
Control registration standard installation review extension does not shoot fixed speed
Appearance and performance| |tt||Your fixed point
to r:min
calibrator
sensor with calibration coefficient
V, standard equipment
rnzin last calibration month
start/, this registration! Period
calibration flow
.%, including factor = 2
%, light transport standard equipment stomach control development uncertainty
pure m speed rn
same frequency production
speed change display
reverse display busy specific
inspected speed indicator reading,
calibrator
speed change caused by
teaching change
FaraN-m
valid until
no load
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