Digital Level Meter

Digital Level Meter Model:TSH33-XJH5012F / China Item: 1. Overview 1.1, M312340 part of multi-functional integrated testing instrument: "Level Meter + oscillator + meter + frequency counter." 1.2, M312340 using FPGA technology, manufacturing, and finished an all-digital interface, small size, only 0.8kg.

1.3, M312340 automatic calibration, automatic deduction error, without any human involvement. 1.4, M312340 all the measured data with high-speed micro-computer processing. 1.5, M312340 oscillator output frequency using phase-locked mode. 1.6, complete lithium battery-powered and charging system.

Note: The measurement of the different functions when you press the correct input jack to connect the oscillator output hole to prohibit access high and electricity (220V) in order to prevent damage to oscillation part of the intrusion. ã ã 2, the main technical indicators (level meter section) 2.1, the test frequency range: 15Hz ~ 1MHz Note: If the user specifically asked, factory test target range: 15Hz ~ 620kHz.

2.2, Test Level Range: +50 dB ~-75dB Note: +50 dB ~ +40 dB range measuring, the input impedance is recommended as "high impedance" measurement and the measurement of time does not exceed 20 seconds.

2.3, frequency response: 15Hz ~ 20Hz ± 0.5dB 200Hz ~ 200KHz ± 0.3dB 200KHz ~ 620KHz ± 0.5dB 2.4, the zero-level error: (in 600Ω, or 75Ω, 0dB subject) ± 0.3dB 2.5, arbitrary level error: ± 0.75dB 2.6, input impedance 75Ω, 150Ω, 600Ω, high resistance Note: The factory is set to 600Ω ã ã 3, the main technical indicators (oscillator part) 3.1, the output frequency range: 15Hz ~ 1MHz 3.1.1, Frequency Error â?¤ 0.5%, stability of 3 Ã?

10-6, Resolution 1HZ 3.2, Output Level 3.2.1, the output impedance of 600Ω, its maximum output level of +10 dB 3.2.2, the output impedance of 0Ω, its maximum output level of +16 dB 3.2.3, the output level adjustable range: 30dB, adjustable resolution � 1dB 3.3, output impedance: 0Ω, 600Ω Note: The factory oscillator