GB 15322.3-2003 Combustible gas detectors Part 3: Portable combustible gas detectors with a measuring range of 0?100%LEL
Some standard content:
The technical requirements, test methods, markings, inspection rules and instructions for use of this part are mandatory. G15:122 Combustible gas detectors are divided into seven parts: Part 1: Point-type combustible gas detectors with a measurement range of 100°C Part 2: Vertical combustible gas detectors with a measurement range of 0~100%LEL - General Part: Portable combustible gas detectors with a measurement range of C-00% - Part 1: Point-type combustible gas detectors for measuring artificial gas Part 2: Independent intermittent combustible gas detectors for measuring artificial gas Part 3: Portable combustible gas detectors for measuring artificial gas Part 4: Linear combustible gas detectors GB15322.3-2003 Part 3 of B15322 is revised. During the revision process, the production team revised the product according to the national standard (B15322-1994 Technical requirements and test methods for combustible gas detection) Part 3: Linear combustible gas detectors GB15322.3-2003 Part 3 of B15322 is revised. During the revision process, the production team revised the product according to the national standard (B15322-1994 Technical requirements and test methods for combustible gas detection) Based on the implementation of the year and the current situation in our region, we have referred to HN50054, EN50055, EN50056, EN50057, EN50058 (1999 edition) to formulate the technical requirements of this part, and have carried out corresponding tests and inquiries... This part is a fire standard appendix. This part is proposed by the Ministry of Public Security of the People's Republic of China, and this part is the sixth technical committee of the National Fire Protection Standardization Technical Committee. The responsible unit for this part is the Fire Protection Research Institute of the Ministry of Public Security, and the drafting units of this part are: Beijing Keliheng Safety Equipment Co., Ltd., Beijing Daoanbo Technology Development Co., Ltd., Fuxin Electronic Equipment Co., Ltd., and Shenzhen Te'an Zike Co., Ltd. This part is drafted by three people, District Yingran , Ding Hongnian, Ben Kexue, Guan Cunxiang, Lai Weidong, Su Yihua: The version of the standard replaced by this part is 1GB15322--1554.
1 Scope
Combustible gas detectors
Part 3 Portable flammable gas detectors with a measuring range of 0 to 1000%LE
GB15322.3—2003
This part of 15522 specifies the definition, classification, technical requirements, test methods, standards, inspection rules and instructions for use of portable flammable gas detectors.
This part is applicable to portable flammable gas detectors (hereinafter referred to as detectors) used in industrial and comparative applications and sample detectors with special performance used in other environments. Except for special requirements, relevant standards shall apply. In addition to the provisions, this part shall also be applied. 2 Normative references
The clauses in the following documents are incorporated into this part through reference in this part of GB15322. For dated referenced documents, all subsequent revisions (excluding errata) or revisions do not apply to this part. However, the parties who have reached an agreement on this part are encouraged to study whether the latest editions of these documents can be used. For undated referenced documents, the latest editions apply to this part.
Product environmental test method & severity level GB16836
3 Definitions
This part adopts the following definitions:
Alarm setting value
alarmgettingvalne
Predicted combustible gas alarm concentration value.
Alarm action value
alarmvalne
The corresponding minimum combustible "volume dependence value when the detector is replaced. 3.3
Lower explosion limit (LEL)
kw rxplosive limit
The lowest explosion density of flammable gas or vapor in the air. 4 Classification
According to the requirements of the gear drift, it can be divided into:
Explosion-proof type;
1) Non-explosion-proof type,
5 Technical requirements
5.1 Performance
5.1.1 When the concentration of combustible gas in the monitored area reaches the alarm setting value, the detector shall send out a warning signal. 5.1.2 Alarm setting value
G Standard 15322.3—2003
When the detector has two alarm setting values, the lower limit alarm setting value is within the range of 1261.FI~25%LEL, and the upper limit alarm setting value should be 5C%LEL. For the detector with only one alarm setting value, the alarm setting value should be within the range of 1%LEL~1.G standard:
5.1.3 Alarm action deviation||tt ||5.1.3.1 During the specified test items, the detector alarm should not be activated but should not be lower than 1%LEL.5.1.3.7 The difference between the alarm compensation of the detector and the proposed set value should not exceed +3%LEL. 5.1.4 Reasonable indication deviation
H For detectors with combustible gas concentration display function, the difference between the displayed value and the actual value should not exceed ±5%.1.5.1.5 Response time
For detectors with combustible gas concentration display function, the time (time) for the displayed value to reach the actual value should not exceed 309. For detectors without combustible gas concentration indication function, the alarm response time should not exceed 35.6.1.6 The detector should meet the following functions:
5.1.6.1 When the combustible gas concentration in the monitored area changes to the set value, the detector should be able to send out audible and optical reporting signals, and the detector should be placed in a Clean air, the interior should be able to automatically (or manually) restore to the normal monitoring state. 5.1.6.2 The detector should give a user-friendly and optical fault signal that is clearly different from the alarm signal when the sensing element is broken. 5.1.6.3 The operator should have an automatic self-test function. 5.1.7 The detector should be equipped with a low battery display. When the battery is low, it should be able to give an alarm signal and optical signal that are clearly different from the alarm signal. The battery performance should meet the following requirements: 5.1.1 When the detector indicates that the battery is low, the detector can work continuously for 15 hours: 1. The detector can be operated again for 0 hours: 2. The difference between the alarm signal and the report setting value should not exceed 15%. 5.1.7.2 The battery of the detector that works continuously should be able to work continuously for at least 20 hours, and the detector should be able to work completely at the same time. 1.20) 5.1. The detector should be tested for 24 hours in a temperature environment of 2 hours or more, and then be restored to normal condition for at least 21 hours. Then, it should be placed in a temperature environment of 552 degrees for 24 hours. After the test, the detector should not have any damage or failure, and the kinetic energy should be normal. The difference between the alarm value and the alarm value should not exceed 3%LE. L, 5.1.9 (except for suction type detectors) the detector shall report the same kinetic energy value for each rotation on the X, I, and 2 axes multiplied by each other. The difference between the reported dynamic energy values is 5K1.F1.
5.1.10 High-precision filtration performance (only applicable to dry explosion-proof detectors) The detector shall send out an alarm signal or a fault signal or an obvious indication signal of the gas estimation exceeding the control point. After the setting, the detector shall meet the requirements of a) or b).
E) The detector cannot be in the monitoring state. If the detector can be in the normal monitoring state (manually operated), the difference between the alarm action value of the detector and the set value should not exceed +5%L.H1.
5.1.11 Alarm recovery
In a normal environment, for the same detector, the difference between the alarm action value and the alarm setting value of the detector should not exceed %.EL
5.1.12 High seat airflow
Under the condition of airflow velocity of 6/s, the difference between the alarm action value of the detector and the alarm setting value should not exceed 5%.L.FI.5.1.13 The detector should be able to withstand the various tests under the electrical interference conditions specified in Table 1, and should meet the following requirements during and after the test:) During the test, the detector should not send out an alarm signal or an irreversible signal; h) After the test, the difference between the alarm action value of the detector and the set value should not exceed ±5%EL3| |tt||Test name
Electric field test
Electrostatic type
Mass density
Field strength/(V/m
Rate range/MH
Discharge voltage/V
Discharge time
Type of test
GH15322.3—2003
Operating state
On-line monitoring state
High monitoring state
5.1.14 The detector shall withstand the tests under the environmental conditions specified in Table 2. During the test period and after the test, the following requirements shall be met. No alarm signal shall be emitted: After the test, the detector shall withstand the environmental conditions specified in Table 2. The difference between its alarm action value and the alarm setting value shall not exceed ±1°C. Test voltage: High test voltage: Low test voltage: t||Dissipation humidity
Mode monitoring state
Special duration
Duration time/h
Specific steam:
Inhibition degree
Indicator duration
Monitoring conditions
Working state
Normal monitoring condition
Normal status
Normal monitoring status
5.1.15 Detector degree The detector shall be subjected to the tests specified in Table 3. The detector shall meet the following requirements during and after the test: During the test, the detector shall not fail to send out fault signals, the detector shall not have mechanical damage and loose fastening parts, the difference between the alarm action value of the detector and the alarm value shall not exceed ±51.
Test name
Voltage detection test
Detection method test
5.2 Performance of main components
5.2.1 Indicator light
Test model
Ball speed s
Sweep frequency advancement rate/o::nin)
Stretch effect
Each auxiliary effect
Link distance/mm
Number of drops
5.2.1.1 Light emitting diodes shall be used.
50 (less than 1kg)
1c (between 1ke--0kg)
50 (greater than 10kg)
Working status
and power-on status
5.2.1.2 Should be marked with colors. Red indicates a warning signal, yellow indicates a fault signal, and green indicates normal power supply. 1. GE15322.3-2003
5.2.1.3 All indicator lights should be marked where they are. Under normal tower light load, the indicator light should be clearly visible at a distance of 3 meters in front of it.
5.2.2 Electronic components
should be treated with secondary protection (such as tide and potential protection). 5.2.3 Audio components
5.2.3.1 Under the specified working voltage, the audio component should be able to emit a sound at a distance of 1 meter in front of it (A level) not less than 79dB and not less than 115dB.
5.2.3.2 Under 95% of the specified working voltage, the audio component should be able to emit a sound. 5.2.4 Switches and buttons
Switches and buttons should be firm and durable, and their functions should be clearly marked. 5.2.5 The outer cover of the operator should be made of non-combustible material (blood index 12): 6 Test method
6. 1 Test outline
Test process see Table 1,
External test
Main function change test
Can be tested
Battery circuit
Non-discharge storage test
Root value test
Strategy
Blood retest
High-pressure air washing test
Full-scale indication deviation test
Transfer response time test
High-concentration bottom method test
Static electricity
High-efficiency clinical
Low resistance test
Certification test
New efficiency test
Combined test
The test sample ratio is 1:1, And shorten it before and after the test
If there is no explanation in the relevant provisions, all the tests shall be carried out in the following atmospheric conditions: North City
Disc: 15--35%
Degrees, %RH~A constant value between RH and atmospheric pressure P~kP
6.1.4If there is no explanation in the relevant provisions, the tolerance of each test data is 15%: 6.1.5 The tester shall be inspected before the test, and the test can be carried out only when it meets the following requirements.) Text, symbols and signs are clear and open
1) There is no magic on the surface, no obvious damage, cracks, burrs and other mechanical damage + c) There is no movement of the solid position.
6.1.6 Test gas reservoir gas distribution precision
GB 15322.3—2003
The purity of the combustible gas used to prepare the test gas shall not be lower than that of the dry gas. The air used to prepare the test gas shall be fresh air without argon or sulfur. The humidity of the gas shall meet the normal humidity conditions. The error of the gas shall not be greater than 2% of the agreed alarm value. 6.1.7 Detector calibration
During the test, the detector shall be calibrated according to the set value according to the specific points in the product manual. After verification and confirmation, no calibration is required. Use the calibration hood to calibrate the detector: 6.1.8 Zero adjustment of the detector
Before the test: First, heat the detector for 1h ( Or according to the time specified in the product manual, and then adjust the zero according to the instructions. After the test starts, it needs to be repeated (except for special requirements for individual tests). 6.2 Main component inspection test
6.2,1 Purpose
Inspect the performance of the main components of the detector.
6.2,2 Requirements
The performance of the main components of the detector shall comply with the requirements of Article 5.2. 6.2.3 Delivery
6.2.3.1 Check and record the color identification, visibility and function of the indicator light. 6.2.3.2 Check and record the various functions of the detector. Marking conditions 6.2.3.3 Check and record the three defense conditions:
6.2.3.4 Put the detector in a safe state, measure and record the voltage level of the detector alarm signal, and then make the detector power supply voltage rise to a certain voltage. Observe the change and record the alarm condition of the operator. 6.2.3.5 Inspect the shell of the detector and measure the oxygen index of the shell of oxygen-resistant materials. 6.3 Functional test
6.3.1 The function of the detector shall be tested on the first day.
6.3.2 Requirements
The function of the detector shall meet the requirements of 5.2.5. 6.3.3 Method
6.3.3.1 After the detector is in the monitoring state for 1 cm.n, the detector is in the alarm state, and the detector light alarm is recorded.
6.3.3.2 The detector in the alarm state is disconnected from the external circulation of combustible gas! Automatically or manually restore, and record the recovery of the detector light alarm signal.
6.3.3.3 The front sensor element of the detector is disconnected, and the working state of the detector is recorded. 6.3.3.4 Perform self-check analysis on the detector, and record the sound and light alarm of the detector. 6.4 Battery performance test
6. 4.1 Purpose
(15322.3——2003
To test the battery performance of the detector.
6.4.2 Requirements
The battery age of the detector shall meet the requirements of Article 5.1.1. 6.4.3 Method
6.4,3.1 Check the low battery indication function of the detector. 6.4.3.2 Make the detector drop to the low power indication when the power is off and the detector is allowed to operate 10 times. Then, make the "alarm value" of the detector according to the method in Article 6.6.3. 6.4.3.3 Install fully charged batteries in the detectors that have been used for a long time, and put them in monitoring state. After that, check the detectors. 6.5 Unpowered storage test 6.5.1 Purpose To check the adaptability of the detectors to the storage environment. 6.5.2 Requirements The detectors should meet the requirements of 3.1.8. 6.5.3 Method 6.5.3.1 Place the calibrated and functional detectors in a low-voltage test chamber at night, and reduce the temperature in the test chamber to -25°C/min at an average temperature of 1°C/min, and keep it for 24 hours. 6.5.3.2 Take out the detectors from the test chamber and keep them in normal indoor environment for at least 21 hours. 6.5.3.3 Place the detector in the test chamber and raise the humidity in the test chamber to 6T ± 2.0 at a rate of no more than 1/t and maintain it for 24 hours. 6.5.3.4 Take the detector out of the high temperature test chamber and restore it to normal environmental conditions for at least 54 hours. 6.5.3.5 After the test is completed, measure the alarm value of the detector under normal environmental conditions according to the method in 6.1.3. 6.5.4 Test Equipment 168 1997 Article 4 Emergency Regulations, 6.6 Alarm Action Value Test 6.6.1 Purpose
Check the accuracy of the detector alarm setting value. 6.6.2 Requirements
The detector alarm action value should meet the requirements of 5.1.3: 6.6.3 Method
6.E.3.1 Install the detector in the test chamber under normal operating conditions. Turn on the power and let the detector stop the normal monitoring state for 20min:
6.6.3.2 Start the fan to set the air flow velocity in the test chamber at U.8ms ± 0.2/min, then increase the test gas concentration at a rate of no more than 1.1%/min until the detector sends an alarm signal and measures the alarm action value. 6.6.4 Test equipment
The test equipment should comply with the requirements of this part A. 6.7 Position test
6. 7. 1 Purpose
Check the response of the detector position to the alarm action value. 6.7.2 Requirements
The performance of the device under test should meet the requirements of 5, 1, and 9. 6.7.3 Methods
The device under test should be placed in the test box according to the normal working state requirements, and the power supply should be turned on. The value operator should monitor the status 6
G8 15322. 3--2003
6.7.3.2 Rotary fan - Set the air velocity at 0.8m/±0.2m/5. Then apply test air at a rate not less than 1.11/m until the detector sends out an alarm signal and measures the alarm action value of the detector at one position on the Y axis. Carry out the test at each position of 45 degrees rotation and measure the alarm action value at each position on the Y axis. 6.7.2.3 Measure the alarm action value at each position on the Y axis respectively. If the external structure and internal structure of the detector on the Y and X axes have an impact on the air velocity, the test on the two axes is not carried out. 6.7.4 Test equipment
The test equipment shall comply with the requirements of Appendix A of this part. 6.8 Alarm quality test
6.8.1 Purpose
Check the accuracy of the alarm report action value. 6.8.2 Requirements
The resilience of the detector shall meet the following requirements: 1.1. 6.8.3 Method
Test the alarm action value of the detector each time. 6.6.3 Test equipment
The test equipment shall be as specified in Appendix A of this Part. 6.9 High-speed airflow test
6.9.1 Check the adaptability of the detector to high-speed airflow. 6.9.2 Requirements
Perform high-speed airflow test on the detector. The requirements of 5.1.12 shall be met. 6.9.3 Method
6.9.3.1 The detector shall be installed in the test box according to the normal working conditions. The power supply shall be turned on to make the detector in the normal monitoring state. 6.9.3.2 Start the fan to stabilize the air flow in the test box at m/s for 0.5ms. Add the test gas at a rate not greater than [I.FL/mi] until the detector sends out an alarm signal. The detector shall meet the action value of the component. 6.9.4 Test equipment
The test equipment shall meet the requirements of this part. 6.10 Full range indication deviation test
6. 10. The full range indication of the detector will be checked on the 1st day. 6.10.2 Requirements The full range indication of the detector should meet the requirements of 5.1.1: 6.IC.3 Method 6.10.3.1 Turn on the power of the probe cell to make it in the normal range. 2m3ml, 6.10.3.2 Prepare a total volume of 500L/m1 and replace the test gas with 10%, 25%, FC%, 75% and 90% of the planned flow rate of the combustible gas and clean air respectively. Then, apply the prepared test gas to the sensor of the probe for at least 1 minute after calibration, and record the indication of the detector under each situation. 6.10.4 Test equipment ) Gas analyzer; Gas analyzer, CB 15322.32003
E.11 Response time test
6.11.1 The response time of the detector shall be checked.
6.11.2 The response time of the detector shall meet the requirements of 5.1.5. 6.11.3 6.11.3.1 Power on the controller and keep it in the normal monitoring state for 2Umin. 6.11.3.2 For the detector with combustible gas hydraulic pressure display function, adjust the amount of combustible gas and clean air entering the gas release device, prepare a test gas with a flow rate of 500mL/min, and deliver the prepared test gas to the sensor element of the detector after calibration. Start the timing device at a certain time, and stop the timing when the detector displays a high actual value of about 905, and record the response time of the detector (.||tt| |6.11.3.3 For detectors that have more than just the combustible gas concentration indication function, adjust the flow rate of the combustible gas and clean air in the gas selector to prepare a test gas with a concentration of 500mL/min. The concentration is 1.6 times the alarm action value of the operator, and the prepared test gas is sent to the sensor element of the operator after verification. At the same time, the automatic timing device starts timing when the operator reads the alarm signal, and records the alarm response time of the detector.
6. 11. 4 Test equipment
Gas analysis only
b) Gas filter:
Timer
6.12 High-altitude flow test
6.12.1 Purpose
To test the adaptability of the detector to high-alarm sound waves: 6.12.2 Requirements
The concentration filterability of the detector shall meet the requirements of Article 5.1.10. 6.12.3 Method
6.12.3.1 Install the detector in the explosion-proof test box and keep it in the normal monitoring state for 20 minutes. 6.12.3.2 Send the hot gas with a cumulative fraction of 1m% to the sensor element of the depth detector at a flow rate of 30mJ/min. and keep it for 2 minutes. Remove the hot gas in the test box and then place the detector in clean air for 30 minutes. During the test, observe and record the working status of the detector; if the detector is in the normal monitoring state, measure the operating value of the detector by the method in 6.6.3.
|6.12.4 Test equipment
|||||||||||||||||||||||||6.13 Radiated electromagnetic field test
|||6.13.1 Purpose||tt| ...
Median value T batch measurement receiving
obtained
power treatment equipment
Figure 1 Layout of test equipment
GH15322.3-2003
Test subject
6. 13.3.3 During the test, the frequency signal generator of 1Hz-10MH shall be used. The reading lamp shall be 10V/m. During the test, the frequency shall be changed slowly within the specification range of 1Hz~1000H at a rate greater than 0.0050ct. At the same time, the operator shall be pressed to observe and record the working condition of the detector: the transmitting line used has obvious directionality, so the transmitting carrier shall be reversed first and the test shall be carried out on the alignment operator. In the frequency range of 1MHz--100MHz, the test should be carried out with the polarization and key signal of the large line respectively:
6, 133, 4 During the test, the working status of the detector should be recorded. The test is carried out in the screen room. In order to avoid large measurement errors, the position of the antenna should meet the requirements of Figure 2. Strictly
The power signal is generated in the air at the highest level
Avoid the large curve in the book plan
Wind is generated in the air
Figure 2 Antenna position diagram
6.13.3.6 After the test is completed, the alarm action value of the measuring device is obtained. 6.13.4 Test equipment
The test equipment meets the requirements of B168-17 Section 4. 6.14 Clean current test
6.14.1 Purpose
To test the adaptability of the detector to the electrostatic discharge of statically charged personnel and objects. 6.14.2 Requirements
The detector's anti-discharge performance meets the requirements of Article 5.1.13. 6.14.3 Method
6.14.3.1 Place the detector on the support, with a distance of not less than 153m from the grounding plate. Connect the power supply and keep the detector in the normal monitoring state for 20min. 6.14.3.2 Adjust the output voltage of the generator to R00nV. Use a spherical collector to charge and then quickly touch the detector surface to connect the connection (but do not damage the detector). After each change, the generator should be moved and charged, and the detector surface should be touched 8 times in total. The detector is discharged to the grounding plate 10mm away from the detector twice. The interval between each discharge is at least 19. During the test, observe and record the working status of the detector. 6.14.3.3 After the test, measure the detector's required action value according to 6.6.3. 6.14.4 Test equipment
The test equipment shall meet the requirements of GB 5833-1997. 6.15 High temperature test
6.15.1 Purpose
To test the stability of the detector's performance under the ambient temperature. 6.15.2 Requirements
The performance of the detector under the condition of over-filming shall meet the requirements of 5.1.14: 6.15.3 Flow
6.15.3.1 The detector is installed in the test box in normal working state, and the power is turned on, so that the detector is in the normal monitoring state for 20 minutes. 6.15.3.2 Start the fan. Make the air flow in the test box stable at G.8m/=0.2m/g. Raise the temperature in the test box to 702℃ at a heating rate of no more than 1%1/ulim and keep it at 2. 6.15.3.3 Measure the alarm action value of the controller according to the method in 6.6.3. 6.15.4 Test equipment
The test equipment shall comply with the requirements of this part. 5.16 Low temperature test
6.16.1 The stability of the performance of the detector when it is working under low temperature environment shall be tested. 6.16.2 Requirements
The performance of the detector under low temperature shall meet the requirements of 5.1. 6.16.3 Method
6.16.3.1 Install the detector in the test box in the normal working state, turn on the power, and keep the detector in the normal monitoring state for 2 minutes. %.16.3.2 Dynamic ventilation.. Make the air flow velocity in the test chamber be set at 0.8m/~0.2m/, with a drop rate not less than 1/am, and the temperature in the test chamber drop to -4U%:2℃ and maintain for 2h. 6.16.3.3 Measure the alarm value of the detector according to the method in 3.3. 6.16.4 Test equipment
The test equipment shall comply with the provisions of Appendix A of this part 6.17 Constant cooling test
6.17.1 Purpose
To check the stability of the detector under constant heat conditions: 6.17.2 Requirements
The performance of the detector when working under constant heat conditions meets the requirements of 5.1.14: 6.17.3 Method
6.17.3.1 Install the detector in the test chamber in normal working state 17.3.2 Start the ventilator. Set the airflow rate in the test box to 0.8m/min.2m/min, and increase the humidity rate to 3R at a rate not greater than 5KRH/min. Set the temperature in the test box to 4°C=2, then increase the temperature in the test box to 3R at a rate not greater than 5KRH/min, and run for 2h. 6.17.3.3 Measure the alarm action of the detector according to the method in 3.6.3. 6.17.4 Test equipment The test equipment shall be determined in accordance with the requirements of the department. 6.18 Vibration test 6.18.1 Purpose Test the performance of the detector under vibration and the integrity of its structure. 6.18.2 Requirements
The vibration resistance of the detector shall meet the requirements of 5.1.15. 6.18.3 Method
GB15322,3-2003
6.18.3.1 Install the detector on the vibration test bench according to its normal installation method, turn on the tester, and make the detector in a normal state: 6.18.3.2 Start the vibration test bench, and scan the X, Y, and Y axes 10 times at a speed of 1.5 na/min within the frequency range of 10Hz~159Hz. 6.18.3.3 During the test period, monitor the detector, and after the test, check the external conditions and the need for repair. 6.18.3.4 Test the alarm value of the detector according to the method of 5.3.3. 6.18.4 Test wall equipment
Test equipment includes (16833--1997 Chapter 1 Current regulations: 6.19 Drop test
6. 19. 1 Purpose
To test the adaptability of the depth detector to withstand the fall. 6.19.2 Requirements
The performance of the detector to withstand the fall shall meet the requirements of 5.1.15. 6.19.3 Methods
6.19.3.1 Drop the unpackaged detector onto a hard concrete surface: Drop height:
Mass less than
More than 10 kg~ukg
Mass more than 10
25cm/min
6.19.3.2 After the test, check the appearance of the detector and the fastening parts. 6.19.3.3 After the test, check the detector according to 6.6.3 to ensure that the measuring end of the measuring plate is 7 Marking
7.1 Product marking
Each detector shall have a clear and durable product marking, which shall include the following contents: manufacturer name and address:
product name;
product model:
main technical data of the product (suitable gas type, alarm value, etc.); protection mark;
g: manufacturing date and product number;
h) standard.
7.2 Quality inspection mark
Each detector shall have a clear quality inspection mark, which shall include the following contents:
quality mark,1. Install the detector in the test box in normal working state, connect the power supply, and make the detector in normal monitoring state. 17.3.2 Start the air flow machine. Set the air flow rate in the test box at 0.8m/min.2m/min, and increase the humidity rate at no more than 1KRH/min. Make the temperature in the test box reach 4°C=2, then increase the humidity in the test box to 3R at a rate of no more than 5KRH/min, and run for 2h. 6.17.3.3 Measure the alarm action of the detector according to the method in 3.6.3. 6.17.4 Test equipment The test equipment shall be determined in accordance with the requirements of the relevant department. 6.18 Vibration test 6.18.1 Purpose Test the performance of the detector under vibration and the integrity of its structure. 6.18.2 Requirements
The vibration resistance of the detector shall meet the requirements of 5.1.15. 6.18.3 Method
GB15322,3-2003
6.18.3.1 Install the detector on the vibration test bench according to its normal installation method, turn on the tester, and make the detector in a normal state: 6.18.3.2 Start the vibration test bench, and scan the X, Y, and Y axes 10 times at a speed of 1.5 na/min within the frequency range of 10Hz~159Hz. 6.18.3.3 During the test period, monitor the detector, and after the test, check the external conditions and the need for repair. 6.18.3.4 Test the alarm value of the detector according to the method of 5.3.3. 6.18.4 Test wall equipment
Test equipment includes (16833--1997 Chapter 1 Current regulations: 6.19 Drop test
6. 19. 1 Purpose
To test the adaptability of the depth detector to withstand the fall. 6.19.2 Requirements
The performance of the detector to withstand the fall shall meet the requirements of 5.1.15. 6.19.3 Methods
6.19.3.1 Drop the unpackaged detector onto a hard concrete surface: Drop height:
Mass less than
More than 10 kg~ukg
Mass more than 10
25cm/min
6.19.3.2 After the test, check the appearance of the detector and the fastening parts. 6.19.3.3 After the test, check the detector according to 6.6.3 to ensure that the measuring end of the measuring plate is 7 Marking
7.1 Product marking
Each detector shall have a clear and durable product marking, which shall include the following contents: manufacturer name and address:
product name;
product model:
main technical data of the product (suitable gas type, alarm value, etc.); protection mark;
g: manufacturing date and product number;
h) standard.
7.2 Quality inspection mark
Each detector shall have a clear quality inspection mark, which shall include the following contents:
quality mark,1. Install the detector in the test box in normal working state, connect the power supply, and make the detector in normal monitoring state. 17.3.2 Start the air flow machine. Set the air flow rate in the test box at 0.8m/min.2m/min, and increase the humidity rate at no more than 1KRH/min. Make the temperature in the test box reach 4°C=2, then increase the humidity in the test box to 3R at a rate of no more than 5KRH/min, and run for 2h. 6.17.3.3 Measure the alarm action of the detector according to the method in 3.6.3. 6.17.4 Test equipment The test equipment shall be determined in accordance with the requirements of the relevant department. 6.18 Vibration test 6.18.1 Purpose Test the performance of the detector under vibration and the integrity of its structure. 6.18.2 Requirements
The vibration resistance of the detector shall meet the requirements of 5.1.15. 6.18.3 Method
GB15322,3-2003
6.18.3.1 Install the detector on the vibration test bench according to its normal installation method, turn on the tester, and make the detector in a normal state: 6.18.3.2 Start the vibration test bench, and scan the X, Y, and Y axes 10 times at a speed of 1.5 na/min within the frequency range of 10Hz~159Hz. 6.18.3.3 During the test period, monitor the detector, and after the test, check the external conditions and the need for repair. 6.18.3.4 Test the alarm value of the detector according to the method of 5.3.3. 6.18.4 Test wall equipment
Test equipment includes (16833--1997 Chapter 1 Current regulations: 6.19 Drop test
6. 19. 1 Purpose
To test the adaptability of the depth detector to withstand the fall. 6.19.2 Requirements
The performance of the detector to withstand the fall shall meet the requirements of 5.1.15. 6.19.3 Methods
6.19.3.1 Drop the unpackaged detector onto a hard concrete surface: Drop height:
Mass less than
More than 10 kg~ukg
Mass more than 10
25cm/min
6.19.3.2 After the test, check the appearance of the detector and the fastening parts. 6.19.3.3 After the test, check the detector according to 6.6.3 to ensure that the measuring end of the measuring plate is 7 Marking
7.1 Product marking
Each detector shall have a clear and durable product marking, which shall include the following contents: manufacturer name and address:
product name;
product model:
main technical data of the product (suitable gas type, alarm value, etc.); protection mark;
g: manufacturing date and product number;
h) standard. wwW.bzxz.Net
7.2 Quality inspection mark
Each detector shall have a clear quality inspection mark, which shall include the following contents:
quality mark,
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