Microphone tester
  • Microphone tester

CRY5620 Microphone tester

CRY5620 Microphone Tester can test many types of microphones, such as electret and MEMS. This instrument adopts SCM control and combines digital-analog processing technology, signal set generation, signal processing and data display. It can display the sensitivity of a microphone at low, medium and high frequencies, as well as the microphone current. Featured by easy-to-operation, user-friendly setup interface, fast and accurate testing, it is ideal for production lines and metrological service organizations.

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  • Simple operation
  • Fast testing
  • High accuracy
Features
Product advantages

Product advantages

  • The hardware combines SCM control and digital-analog mode, and has an accurate frequency signal generation module, an excellent signal conditioning module and a dynamic display module of real-time data.

  • Low, medium and high test frequencies can be selected. It can quickly set indicators for determination, such as sensitivity, upper and lower limits for acceptable microphone current, and can output the result on whether a value is acceptable.

Product advantages

  • Meanwhile, it has analog and digital input terminals, and customers can choose based on test products. Each 10 dB will be considered as a measuring range, so meeting the test needs of various microphones.

  • The test data is displayed in more user-friendly units for analog and digital microphones. When the user selects the analog test, the default unit of such sensitivity test will be dBV; when the digital test is selected, the sensitivity test result will be displayed in dBFS by default.

Product advantages
Product advantages

Product advantages

  • Meanwhile, it has analog and digital input terminals, and customers can choose based on test products. Each 10 dB will be considered as a measuring range, so meeting the test needs of various microphones.

  • The test data is displayed in more user-friendly units for analog and digital microphones. When the user selects the analog test, the default unit of such sensitivity test will be dBV; when the digital test is selected, the sensitivity test result will be displayed in dBFS by default.

Technical specification
Frequency measurement range
Low frequency bandModulatable within 50 Hz - 199 Hz; 70 Hz as a typical measuring point, 1 Hz/step
Medium frequency bandModulatable within 0.5kHz - 1.9kHz; 1kHz as a typical measuring point, 100Hz/step
High frequency bandModulatable within 2kHz - 16kHz; 5kHz as a typical measuring point, 100Hz/step
Signal amplitude measurement
Amplitude range-80.00 dB to 0 dB; resolution = 0.01 dB, based on 1 V
Measuring range equation10 dB/shift
Dynamic Range30 dB, error ≤ ±0.5 dB
Current measurement range1 μA - 999 μA, resolution = 1 μA
Microphone measurement conditions
Analog microphone

Operating voltage: 1.8 V, 2 V, 2.5 V, 3 V, 3.3 V, 4 V, 4.5 V, and 5 V can be selected, with error ≤ ±3%.

Current limiting resistance: 680 Ω, 1 kΩ, 1.5 kΩ, 2 kΩ, 2.2 kΩ, 2.7 kΩ, 3 kΩ, and 4.7 kΩ can be selected.

Digital Microphone

Operating voltage: 1.8 V, 2 V, 2.5 V, 3 V, 3.3 V and 4 V can be selected, with error ≤ ±3%.

Operating frequency: modulatable within 0.6 MHz - 4 MHz, 0.1 MHz/step, error ≤ ±2%

Other specifications
Current measurement range1 μA - 999 μA, resolution = 1 μA
Step output interfaceDB9
Refresh rate OSD0.3s
Power supply50Hz,220V±10%
Operating environment0 - 40℃; RH ≤ 80%
Dimension (mm)327×295×129
Mouth simulator
Output sound pressure84 dB - 104 dB, three-way and independent modulation
Frequency Response≤±1dB

Total Harmonic Distortion

≤1%(94dB)

Configuration checklist

Main unit

1 set

CRY603 Mouth Simulator

1 pcs

Power cord

1 pcs

Input line of digital microphone

1 pcs

Input line of analog microphone

1 pcs

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