ZY5110 Digital Level Comprehensive Tester
Contact Info
- Address:深圳市南山區(qū)西麗鎮(zhèn)平山一路民企科技園7棟6樓, Zip:
- Contact: 曹小姐
- :18025310862
- :zb52@szprc.com
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ZY5110 Digital Level Comprehensive TesterIntroduction
The ZY5110 Digital Level Comprehensive Tester is a multifunctional instrument integrating an oscillator, wideband level meter, selective level meter, noise meter, impedance meter, carrier channel automatic tester, and frequency counter. It adopts internationally advanced dual DDS technology, a microcontroller with flash ROM, a temperature-compensated crystal oscillator (TCXO), and large-scale integrated circuits, making it an intelligent, fully digital instrument. The tester offers high measurement accuracy and stable level performance, featuring automatic ranging, automatic level calibration, AFC, automatic fast search, local single-unit and remote dual-unit synchronous automatic testing. Measurement results are displayed both digitally and analogically, with data storage capability and upload to a PC via RS232 interface for printout.
ZY5110 Digital Level Comprehensive TesterFeatures
Fully digital, high-definition large-screen LCD display, Chinese character and graphic display, menu-driven operation
The transmitting level has excellent frequency response and level stability, with extremely high output purity, making it an ideal high-quality signal source. The output port is equipped with an automatic protection circuit, preventing damage from strong signal injection, making it particularly suitable for testing high-frequency channels in relay protection.
Receiving level measurement range: -100dB to +50dB, display resolution 0.01dB
Equipped with various output and input impedances, suitable for terminal or bridging measurements with communication equipment. Supports three measurement units: dB, dBm, and mV, switchable as needed, with direct display without conversion.
Features two selective bandwidths: 25Hz and 1.74kHz, excellent selectivity, and very low inherent distortion, enabling the level meter to measure level and crosstalk noise, as well as perform waveform analysis. The 1.74kHz bandwidth allows long-term testing of line weighted noise level.
"AFC" function enables full-frequency tracking of the measured signal; automatic search function quickly and accurately locates the level and frequency of unknown signals.
Local single-unit automatic loop testing; remote dual-unit automatic synchronous testing; automatic measurement of high-frequency channel parameters such as level, attenuation, amplitude-frequency characteristics, weighted noise, and line impedance. Equipped with RS232 serial interface, data can be stored and uploaded to a PC for printout.
Supports both AC and DC power, built-in rechargeable lithium battery, providing up to 4 hours of continuous operation, power consumption less than 4W.
ZY5110 Digital Level Comprehensive TesterTechnical Parameters
Frequency Range | 200Hz～1700kHz (balanced 600Ω, 200Hz～620kHz) |
Frequency Adjustment | Digital key or up/down key input, resolution 1Hz, frequency error ±3×10-6±1Hz |
AFC | B=25Hz Capture bandwidth: 50Hz, Synchronization bandwidth: Full-frequency tracking |
B=1.74kHz Capture bandwidth: approx. ±500Hz, Synchronization bandwidth: Full-frequency tracking | |
Automatic Search | Search level: -80dB |
Transmitting Level | -77.9dB to +12dB, maximum output level +18dB at balanced 0Ω impedance |
Transmitting Level Adjustment | Digital key or incremental up/down key input, resolution 0.1dB |
Receiving Level | -100dB to +50dB |
Level Display | LCD Chinese character and graphic display, menu-driven operation, measurement results displayed digitally and with analog bar indicator |
Level Measurement Error | 0dB error ±0.1dB |
Frequency response error ±0.2dB | |
Level linearity error ±0.25dB | |
Frequency Selectivity | B=25Hz 3dB bandwidth approx. 24Hz |
B=1.74kHz 3dB bandwidth approx. 1.5kHz | |
IF attenuation ≥ 60dB Image frequency attenuation ≥ 60dB | |
Inherent Distortion Attenuation | ak2, ak3 both ≥ 60dB |
Output Distortion Attenuation | Second and third harmonic attenuation ≥ 46dB |
Non-harmonic and spurious attenuation ≥ 60dB | |
Internal Inherent Noise | B=25Hz, ＜-110dB |
Input (or Output) Impedance | Unbalanced: 75Ω, ∞ (output 0Ω) |
Balanced: 600Ω, 150Ω, ∞ (output 0) | |
High level ≈30kΩ | |
Return Loss | ≥ 30dB |
Input (or Output) Longitudinal Interference Attenuation | f ≤ 620kHz: ≥ 40dB |
f ＞ 620kHz: ≥ 30dB | |
Noise Measurement | Uses 1.74kHz equivalent noise bandwidth, unit dBp or dBmp |
Impedance Measurement | 30Ω to 1200Ω (modulus value), display resolution 0.1Ω |
Automatic Measurement | Local single-unit loop test; remote dual-unit synchronous test |
PC Interface | RS232 |
Dimensions | 270mm (width) × 120mm (height) × 265mm (depth) |
Weight | Approx. 3kg (with battery) |
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