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Simpson 884-2 Sound Level Meter and 890-2 Calibrator
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Simpson 884-2
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Features:
- "A" weighting
- Meets IEC 651 and ANSI S1.4-1983 Meters
- Helps You Meet OSHA and Walsh-Healy Noise Control Specifications
- Quickly, Accurately Measures Sound Levels in Factories, Offices, Etc.
- Simple, Easy to Operate
- Full Coverage 40-140 dB with Special 85-115 dB OSHA Range
- Impact-Resistant Case Contoured to Minimize Sound Energy Field Reflections
- Operates 40 Hours on a 9V Battery
- AC and DC Voltage Jacks for Recorder, Analyzer and Tester Interface
- External Filter Output Jack for Simpson Model 898 Octave Band Filter for Noise
- Frequency Analysis
- Built-In Tripod Mount
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Description: 884-2 Sound Level Meter
| Simpson Type 2 sound level systems come in a variety of configurations to meet any of your noise measurement requirements. A complete sound level measuring system with calibration and output capabilities gives you the information necessary to comply with OSHA noise safety regulation, as well as local noise ordinances. Each system is composed of several components designed to work together as one integrated test instrument. A rugged, padded carrying case protects your investment. A basic sound level instrument for portable sound and noise measurements covering a wide range of frequency power. |
Description: 890-2 Calibrator
Sound pressure level calibrators are essential accessories to be used before or after taking measurements with sound level meters and noise dosimeters. The 890-2 can be used to adjust Simpson models 886-2 and 884-2, and other sound level meters with a 1" diameter Microphone. The 890-2 provides a constant 94 dB or 114 dB sound pressure level at 1 KHz (0 dB = 0.0002 Mbar). All Simpson Calibrators are immune to a wide range of temperature and humidity conditions while maintaining tight output level tolerances.
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Models, Options, & Accessories
| Model |
Description |
List Price |
Sale Price |
| 884-2 |
SOUND LVL MTR, ANALOG, Item# 40003 |
$471.09 |
| $447.54 |  |
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| 886-2 |
SOUND LVL MTR, MULTI WT, Item# 40004 |
$634.15 |
| $602.44 | |
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| Model |
Accessories |
List Price |
Sale Price |
| 00198 |
CABLE, 886, MICROPHONE, 25' |
$71.84 |
| $68.25 | |
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| 00183 |
MICROPHONE, 886 |
$159.41 |
| $151.44 | |
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| 00184 |
MICROPHONE HOLDER, 886 |
$28.41 |
| $26.99 | |
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| 45015 |
CABLE, SLM/606, 72' LG. |
$32.70 |
| $31.07 | |
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| 45022 |
CASE, MOLDED, 884-2, 886-2, 899 |
$79.41 |
| $75.44 | |
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Specifications
| General |
| Physical |
3.0" x 8.2" x 1.9" (77 x 208 x 47mm) |
| Weight |
1.25 lbs (.57kg) |
| Construction |
Molded ABS Plastic Housing |
| Power Requirements |
| Battery Type |
(1) 9V NEDA 1604A |
| Battery Life |
40 hrs. (approx) |
| Temperature Range |
| Operating |
-10° to 50°C |
| Storage |
-40° to 60°C |
| Temp. Influence |
+/-0.015 dB/°C@ 1KHz |
| Operating Humidity |
+/-0.5dB 0 to 90% |
| Sound Level |
| Ranges |
40 to 140 dB |
| Reference |
0dB = 20m Pascals |
| Accuracy |
meets ANSI S1.4-1983 |
| Weighting |
"A" (external filter for flat response) |
| Microphone |
| Type |
condenser type L size per ANSI S1.12-1967 |
| Impedance |
350Ω +/-20% @23°C |
| Characteristics |
Omnidirectional, angle of incidence approximates random response equal to 70° |
| Signal Output |
| External Filter |
120mV RMS at meter reading of +10dB |
| RMS Output |
1.00V RMS at meter reading of + 10dB |
| dB Output |
1.5 VDC at meter reading of + 10dB |
| Calibration |
frequency=1000Hz@94dB on the 90 dB range, 114 dB on the 110 dB range. Screwdriver adjustable (from side of case) |
| Meter Movement |
| Type |
Pivot and Jewel, 2 1/2" dial |
| Scale |
-10 to +10 dB w/(15) 1dB markings |
| Accuracy |
2% |
| Response Time |
Slow = 2.5 dB to a 500ms tone burst of 1000Hz, Fast = 2.0 dB to a 200ms tone burst of 1000Hz |
| Output Jack |
| Type |
Switchcraft # 750(0.141"dia.) f/external filter, # 850(0.097" dia.) f/dB and RMS output |
| External Filter |
Simpson Model 898 Octave Band Filter |
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