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Ultrasonic Flaw Detector AS-4
Special Feature
AS-4 Ultrasonic Flaw Detector is a small portable detector, the
introduction of foreign advanced technology, high-brightness
selection rectangle , with a frequency bandwidth, high sensitivity,
AC-DC dual-use, low power consumption, small size , light weight,
reasonable structure, convenient operation and so on. The instrument
performance is stable, reliable, applicable to all kinds of steel
plate and forging weld testing, for mobility and high above the
field, especially convenient.
Technical Specifications
Applicable standards |
IEC Pub 651 Type2, ANSI S1.4 Type 2 |
Accuracy |
+/- 1.5dB (ref 94dB @1KHz) |
Digital display |
4 digital LCD |
Measurement Level A weighting |
30dB to 130dB |
Measurement Level C weighting |
35dB ~ 130dB |
Level range |
30-80dB, 50-100dB, 60-110dB, 80-130dB |
Measurement frequency range |
31.5 Hz to 8KHz |
Frequency weight |
A and C |
Time weight |
Fast and Slow |
Microphone |
1/2 inch Electret condenser microphone |
Digital display |
4 digit LCD, 0.1dB resolution, updated every 0.5s |
Quasi-analog bar indicator |
1-dB steps, 50dB display range, updated every 100ms |
Display warning function |
Displayed at the upper limit
Displayed at the lower limit |
Overrange indicator
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Underrange indicator |
Analong AC / DC output |
2Vrms ( at full scale ), 10mVDC / dB |
Power supply |
Four 1.5V LR-6/AA size alkaline cell, AC adapter |
Battery life |
about 20 hours |
Operating temperature , humidity |
5 ~ 40 ℃,
10 ~ 90% RH |
Dimensions |
265 (L)×72(W)×21(H)mm, ( 10.4" L×2.8" W×0.8" H ) |
Weight |
Approx. 310g |
Accessories |
Instruction manual , Battery , Carrying case , |
Adjustment screwdriver , Wind shield, 3.5 f plug |
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