Automotive electric horn performance bench 
 Keywords: automotive electric horn test, automotive electric horn, start-up performance, automotive electric horn durability, horn for motor vehicles test 

 This test platform consists of two main parts: the electric horn to start the performance testing box and electric horn durability test bed 
 Electric horn to start the performance test box 

 1.1 Introduction 
 Start-up performance test kit provides accurate pulse output and pulse frequency, and can test all the way 12V/24V vehicle electric horn, with the B & K sound level meter, combined with the national standard GB 15742-2001 "horn for motor vehicles, performance requirements and test methods" and QC-T 30-200 startup performance "motor vehicle electric horn conditions" determine the electric horn is reached. 
 The parameters of the electric horn can be set freely, the important data of the instrument also has a power-off protection, calls after just re-press the start can continue to be tested, with easy operation and simple features. 

 1.2 Technical Specifications 
 1, input voltage AC output voltage 220V DC 6-30V output current 0-10A; 
 2, can be 12V, 24V automotive electric horn start the test; 
 3, with a large screen LCD display (PLC text display) display to set the pulse, frequency and time interval; 
 5, the single horn measurements; 
 1.3 Technical Parameters 

 Technical parameters: 
 1) PLC output pulse time control accuracy: ± 0.01 
 2) the pulse adjustable minimum resolution of 0.01S 
 3) PLC output transistor output, the response time of less than 2us 
 4) DC drive using a high-speed IGBT control, the response time of less than 1us 
 5) the pulse output to the response time is very small (less than 1 ms), high accuracy 
 6) The large-screen LCD (PLC text display) 
 Initial value preset (frequency and time interval and pulse width) 
 Electric horn durability test bench 

 1.1 Introduction 
 Electric horn durability test bed is used for the durability of the instrument of test electric horn, electric horn's operating voltage, current and sound decibels three parameters comprehensive judgment speaker every time eligibility, and statistics the number of total work. Finally, the number of national standard GB 15742-2001 "motor vehicle horn performance requirements and test methods and QC-T 30-200" motor vehicle electric horn conditions "provides durable electric speakers asked to judge whether the target. 
 The instrument can test two specifications of 12V and 24V electric horn, 5-way up to work at the same time, measured 5 of the same specifications of the electric horn. The three parameters of the electric horn can be set freely, the important data of the instrument also has a power-off protection, calls after just re-press the start can continue to be tested, with easy operation and simple features. 

 1.2 The main technical indicators 
 1.2.1 Technical Specifications 
 1, Input Voltage: AC 220V 
 2, no-load voltage: 13.8V/26.7V (full rated voltage 12V/24V speaker test) 
 3, the load current 0-5A (to meet the speaker test in less than rated current 5A) 
 4 counter range :1-999 999 
 5, with large-screen LCD display (PLC text display) 
 6, can be tested simultaneously the five speakers, and test only the number of freedom of choice 
 7, the sensors: acoustic sensors, voltage transmitter, current transducer 
 8, every speaker 

 1.2.2 Technical Parameters 
 Console parameters 
 1, the voltage / current / sound parameters Display Resolution: 15mV 10mA 0.08dB 
 2, the voltage / current / audio capture accuracy: less than 0.1V 0.1A 0.2dB 
 3, the voltage / current / sound test range 0-30000mV 0-20000mV 30-130dB 
 4, the number of total working range of 0 to -999 999 
 5, allowing the number of failures range :0-9999 
 6 large ones range of options 1-5L