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Extech 407764 16,000 point Datalogging Sound Level Meter
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Extech 407764
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Features:
- High accuracy meets ANSI and IEC 651 Type 2 standards
- Large LCD with Fast 50 segment bargraph display
- Stored data can be transferred to a PC via RS-232 interface
- Real time and Date are logged with data; Max Hold function
- Tripod mount ideal for field use
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Description
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The meter is capable of performing all your noise measurements needs in addition to it’s capabilities for data acquisition (direct data storage to a PC) or datalogging (data storage to internal memory for later download). Data storage enables the user to save data, analyze data and generate reports. This professional meter, with proper care, will provide years of safe reliable service.
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Models, Options, & Accessories
| Model |
Description |
List Price |
Sale Price |
| 407764 |
SOUND LEVEL DATALOGGER DIGITAL, WITH TIME STAMP |
| $599.00 |  |
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| 407764-NIST |
SOUND LEVEL METER W/NIST 407764 |
| $724.00 | |
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| Model |
Accessories |
List Price |
Sale Price |
| 407744 |
SOUND LEVEL CALIBRATOR |
| $299.99 | |
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| 407766 |
CALIBRATOR, SOUND |
| $399.99 | |
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| 40705X |
CABLE, ANALOG OUTPUT FOR SOUND LEVEL METERS |
| $14.99 | |
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| 144117 |
AC ADAPTOR, 5VDC FOR 407764 - Discontinued - replaced by Extech 144118 |
| 407764-EXT |
EXTENSION CABLE FOR 407764 |
| $99.99 | |
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Specifications
| General Specifications |
| Applicable Standards |
IEC651 Type 2, ANSI S1.4 Type 2 |
| Accuracy |
±1.5dB (under reference conditions) |
| Frequency range |
31.5Hz - 8KHz |
| Measuring level |
30 - 130dB |
| Frequency weighting |
A and C |
| Microphone |
0.5” Electret condenser microphone |
| Display |
4-digit LCD |
| Resolution |
0.1dB |
| Display period |
0.5 sec. |
| Bargraph |
50dB scale (1dB steps). Display period: 50mS; Auto-ranging: 100dB scale, 2dB steps |
| Sampling rate |
50mS |
| Memory size |
16,000 records / 255 sets (non-volatile memory) |
| Datalogging sample rate |
1 to 86,400 seconds per record |
| Time weighting |
FAST: 125mS, SLOW: 1 sec. |
| MAX |
Maximum reading held |
| Level ranges |
30-80dB, 40-90dB, 50-100dB, 60-110 dB, 70-120dB, 80-130dB(Total of 6 ranges) |
| Auto range |
30 to 130dB |
| Linearity range |
50dB |
| Alarm function |
OVER indicator for readings higher than high limit. UNDER indicator for readings lower than low limit. |
| AC output |
0.707 Vrms at Full Scale |
| Output impedance |
approx. 600 Ω |
| DC output |
10mV / dB |
| Output impedance |
approx. 100 Ω |
| Power supply |
Four 1.5V ‘AA’ batteries |
| Battery life |
Approx. 30 hrs continuous operation |
| AC adapter Voltage |
6VDC |
| Voltage Ripple |
< 100mVpp |
| Supply Current |
> 100mADC |
| Socket |
Pin Ground |
| Casing |
Positive |
| External Diameter |
3.5mm |
| Operating temperature |
32 to 104°F (0 to 40°C) |
| Operating humidity |
10 to 80%RH |
| Storage temperature |
14 to 140°F (-10 to 60°C) |
| Storage humidity |
10 to 80%RH |
| Memory size |
16,000 data records with Date and Time Stamping |
| RS-232 Interface Baud rate |
9600bps |
| Dimensions |
10.4 x 2.8 x 1.4” (265 × 72 × 35mm |
| Weight |
Approx. 11.5 oz. (358g) including battery |
| Accessories |
Batteries, carrying case, screwdriver, windscreen, 3.5mm plug, RS-232cable , 9- to 25-pin gender changer, Windows compatible software. |
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