-Measurement range: A weighting- 3 ranges, 30 to 130. db. And c weighting- 3 ranges, 30 to 130 db
-Resolution: 0.1 db
-Accuracy: 1 k hz - Plus and minus 1.5 db ( after cal.) Frequency: 31.5 to 8,000 hz
-Operating temperature: 0 to 50deg, C operating humidity: Less than 80 percent r.H
-Power supply: 006p dc 9v battery (heavy duty type) or dc 9v adapter input
Features:
- Large LCD display, easy to read.
- Max. Hold function for stored the maximum value on display.
- Frequency weighting networks are designed to meet the IEC 651 type 2.
- Warning indicator for over and under load.
- LCD display for low power consumption & clear read-out even in bright ambient light.
- A & C weighting networks are conformity to standards.
- Time weighting(FAST & SLOW) dynamic characteristic modes.
- Used the durable, long-lasting components, including a strong,light weight ABS-plastic housing case.
- AC/DC output for system expansion.
- Build in adj. VR is available for easy calibration.
- Small and light weight design allow one hand operation.
- Condenser microphone for high accuracy & long-term stability.
- Low battery indicator.
Specifications:
- Display 18mm (0.7") LCD (Liquid Crystal Display), 3 1/2 digits.
- Function dB (A & C frequency weighting), Time weighting(Fast, Slow), Max. hold, AC & DC output.
- Measurement Range 3 ranges, 30 to 130 dB, input signal only..
- Calibrator B & K (Bruel & kjaer), multi-fuction acoustic calibrator, model : 4226.
- Microphone type Electric condenser microphone.
- Size of microphone 1/2 inch standard size.
- Range selector 30 to 80 dB, 50 to 100 dB, 80 to 130 dB, 50 dB on each step,with over & under range indicating.
- Time weighting Fast - t= 200 ms, Slow - t = 500 ms, (Fast & Slow) * "Fast" range is simulated the human ear response time weighting."Slow" range is easy to get the average values of vibration sound level.
- Calibration: * Build in external calibration VR, easy to calibrate by external screw driver. *Internal oscillation system, 1 KHz sine wave generator.
- Output Signal AC output - AC 0.5 Vrms corresponding to each range step.DC output - DC 0.3 to 1.3 VDC, 10 mV per dB.Out put impedance - 600 ohm.
- Output terminal 3.5 mm phone output terminal is provided for connection with analyzer, level recorder, taperecorder.
- Battery(heavy duty type).