ZC6061/ZC6062 electret microphone tester

ZC6061/ZC6062 series electret microphone tester adopts advanced digital circuit design technology. It is mainly used to measure the sensitivity of electret microphones at 100Hz, 1kHz, and 5kHz frequency points on the production line, so as to detect the classification and match according to the sensitivity. The 100Hz, 1kHz, and 5kHz signals are indicated by three indicators respectively, which can be indicated simultaneously or separately. 100Hz and 5kHz can not only indicate the sensitivity but also indicate their frequency response relative to 1kHz. When the frequency response exceeds the set value, there will be sound and indicator lights respectively. The instrument is easy to operate, has fast and accurate readings, has high test efficiency, and also has internal calibration and acoustic calibration functions. It is especially suitable for the inspection and use of the electret microphone production line and the purchased parts of the telephone manufacturer and has the HANDLER interface and RS-232 interface options, which can be connected to the automatic testing machine for rapid testing.

Model	ZC6061	ZC6062
Sensitivity test range	-26~-70dB（0dB=1V/Pa） There are four ranges: -30dB, -40dB, -50dB, -60dB
Test accuracy	±0.5dB
Sensitivity display	Digital display: 4-digit LED direct reading dB number, resolution 0.1dB, readings are updated 3 times per second; The sensitivity of 1kHz is also displayed in light-emitting diodes, and the display range can be set: 100Hz and 5kHz can also indicate their frequency response relative to 1kHz.
Working current test range	Digital display: 0-20mA
Alarm indication	When the frequency response of 100Hz and 5kHz exceeds the set value, there are light-emitting diodes indicating the upper limit and the lower limit and an alarm sound respectively. When the current exceeds the limit, the indicator light is on and an alarm sound is issued.
Test voltage	Five levels: ±1.5V, ±2V, ±3V, ±4.5V, ±6V Accuracy: ±3% arbitrary choice of polarity
Test signal frequency	100Hz、1kHz、5kHz	100Hz、1kHz
Power supply	Power 2W, sound source sound pressure 94dB （0dB=2×10-5Pa）, 100Hz and 5kHz can be adjusted separately or at the same time
Load Resistance	Five levels: 680Ω, 1kΩ, 1.5kΩ, 2kΩ, 2.2kΩ, 3kΩ, 10kΩ accuracy: ±2%
Electrical calibration	100Hz and 1kHz, 5kHz sine signal accuracy is better than ±0.2dB
Power supply	Mains power 220V±10%, 50Hz, power consumption about 20VA
Continuous working time	Can be used continuously
Dimensions	350mm×340mm×125mm 　　　Sound source：φ108×98
Interface	Handler、RS232 （Optional）
Weight	About 5kg