Model: XHD-5102HW
I. Functional description of the device 
     This machine is suitable for computer keyboards, Notebook, key switches, calculator keyboards, conductive rubber keys, metal shrapnel keys (commonly known as pots and pans) or the same type of keys placed in a high and low temperature environment box to combat the aging test life, the use of advanced PLC touch film screen to control the keyboard key life test the whole process. At the same time for silicone rubber key for fatigue testing; with adjustable speed, the number of arbitrary settings and test several products at the same time (each product can be tested at multiple points), to reach the number of times or power outage shutdown to keep the data; restoration of the incoming call can be based on the previous data to continue to run. Each probe can be set to different pressure and different height.
II. Equipment shape



Pictures are for reference only.    


III. Description of equipment parameters
   Temperature and humidity unit


Temperature test range: -40-150 degrees
Minimum temperature display: 0.1 degrees
Temperature control accuracy: ±1℃
Humidity test range: 20%RH-98%RH
Minimum temperature display: 0.1%RH
Humidity control accuracy: ±2%RH
Temperature and humidity distribution uniformity: ±2℃ / ±3%RH
Temperature and humidity stability: ±0.5℃ / ±2.5%RH
Temperature rise rate range: RT (20 ℃) ~ 150 ℃ about 60 minutes ----- (no load heating 3 ℃ / min)
Cooling rate range: RT (20 ℃) ~ -40 ℃ about 90 minutes - (no-load warming 1-2 ℃ / min)
Temperature and humidity setting (SV) and actual (PV) values are directly displayed.
Running time totalization function
The amount of program that can be used: Maximum 100 groups; 1000 segments
Program can be set up to 999 cycles
Reservation start and date and time adjustment function
Programmable or fixed value temperature and humidity test
Power failure mode can choose "cold start", "hot start", "stop".
Real-time display of the current program group number, the number of segments, running time, the remaining time, the accumulated running time and the number of cycles.
Cooling and heating system






battering ram (military)


Strike test times: 1-99999999 can be set arbitrarily
Strike test speed: 400 times / minute MAX
Strike test force: 100-500g
Maximum stroke: 10mm (fixed)
Stylus height adjustable: 15mm
Test effective distance: X10 mm;Y12mm
Workpiece height adjustment range: 100mm
Testing station: 2PCS keyboards can be tested at the same time.
Product placement: Horizontal or vertical (to be specified by customers when purchasing)
Internal material: SUS#304 stainless steel
Working power supply: AC220V/50HZ



IV. Equipment features.
High and low temperature control and strike life control are independent.
Door: Single piece door, single window, upward opening. 
Exterior material: high-grade wear-resistant baking paint coating
Insulation material: high-density rigid Polyurethane foam insulation.
Control mode: Intelligent PID+SSR/SCR synchronized output in both directions, with advanced slope control logic.

V. Software interface




VI. Schematic diagram of the percussion head




Ⅶ, Equipment protection unit 
Programming error alarm
Leakage protection
Water shortage protection
Over temperature protector    
Fluid power controller with over-zero gate
Empty burn protection
Under-phase and reverse-phase protection switch
Compressor high voltage protection switch
Compressor overheat protection switch
Compressor overcurrent protection switch
Non-fuse switch; ceramic fast fuse
Line fuses and fully jacketed terminals
Buzzer  

VIII. Environmental conditions of use
Allowable Operating Temperature Range 0~35°C
Performance guarantee range: 5~35℃   
Relative humidity：Not more than 85
Atmospheric pressure: 86~106Kpa
No strong vibration around
No direct exposure to sunlight or other heat sources.
Water supply conditions for humidification: pure water with resistivity not less than 500MΩ/M.
Pre-installed capacity: 7.5KW 
Power supply AC380V 50HZ

IX. Randomization
High and low box test mainframe------------------------------------------1 sets
Control system: high and low temperature control system --------------------------------1 set
              Impact endurance life system------------------------------1 set 
Strike probe------------------------------------------------40 pcs
Strike probe fixing rod ------------------------------------------12 pcs
Large universal fixture--------------------------------------------1
Force test bench----------------------------------------------1
Precision Force Measuring Electronic Scale------------------------------------------1PCS    

X. Randomized information
Certificate of Conformity, warranty card;
Instruction manual: operating methods, precautions, shipping basic accessories, maintenance matters.

XI. Delivery instructions
The supplier delivers to the door, the supplier is responsible for the freight, .
The demand side to provide the equipment required power supply;
The supplier is responsible for the installation and debugging operation introduction, until the demand side employees operate independently;
Warranty period of one year from the date of installation and acceptance.