7
1.4 Configuration
Table 1-2
1.5 Working Conditions
Working temperature: 0℃~+40℃;
Storage temperature:-30℃~+60℃
Relative humidity: ≤90%;
The surrounding environment should be void any vibration, strong magnetic field,
viscous fluids, corrosive medium and heavy dust.
2 Structure Feature &Testing Principle
2.1 Structure Feature
1. Main unit 2.Keypad 3. LCD display 4 USB Port