声极计
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产品名称:
声极计
产品型号:
Simpson897
产品展商:
深圳市恒盛丰工贸有限公司
简单介绍
Conforms to ANSI S1.4-1983, ANSI S1.25-1978, and IEC 651-1979 Specifications Choice of Exchange Rates (3, 4, or 5 dB) and Criterion Levels (70, 80, 84, 85, or 90 dB)
声极计的详细介绍
Simpson 897声极计 声极计
Conforms to ANSI S1.4-1983, ANSI S1.25-1978, and IEC 651-1979Specifications
Choice of Exchange Rates (3, 4, or 5 dB) and Criterion Levels (70,80, 84, 85, or 90 dB)
Selectable Threshold Level from 50-99 dB in 1 dB Increments
Dual Range (50-100 dB and 80-130 dB)
Real Time Clock With Rechargeable Battery
Security Lockout Feature With Internal Data Storage
Self-Test Modes Test Operational Readiness
Power Requirements | Ni-Cad Rechargeable battery pack |
Warm-Up Time | 1 minute |
Dimensions | 6.8" (H) x 3.1" (W) x 1.1" (D), (172x80x28mm) |
Weight | 18 oz. (500g) including battery pack |
Case Construction | Anodized aluminum extrusion |
Security Feature | Locks-in operating function |
Real Time Clock | Clock continues running in all functions |
Performance Capability | Conforms to ANSI S1.4-1983 and IEC 651-1971 for sound levelfunction and ANSI S1.25-1978 for dosimeter function and ANSIS1.25-1978 for dosimeter function |
Sound Level Mode |
Ranges | 50 to 100dB, 80 to 130dB |
Accuracy | True RMS, Type S2 |
Dynamic Range | Selectable from 50 to 100dB and 80 to 130dB |
Frequency Response Weighting | "A" Weighting |
Response Time | Slow (1 second) |
Crest Factor | 10:1 at maximum indication |
Frequency Range | 20Hz to 8KHz |
Dosimeter Mode |
Threshold Level | Selectable from 50-99dB in 1dB increments |
Criterion Level | Selectable, 70, 80, 84, 85 or 90dB |
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Criterion Duration (TC) | Eight (8) Hours |
Exchange Rate | Selectable 3, 4 or 5dB |
Maximum Indication | 999.9% DOSE |
Resolution | 0.1% DOSE to 999.9% |
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Elapsed Time | Displays either Hours: Minutes or Minutes: Seconds, up to 99 Hours59 Minutes, 59 Seconds. Timing Accuracy: 0.05% |
140dB Peak | Displays number of 140dB peaks that have been detected |
Microphone |
Type | 0.52" (13.2mm) Diameter Electret Condenser, Omnidirectional 70°angle of incidence. Maximum sound pressure level 148dB |
Display |
Numerical | 4 Digit LCD |
Annunciators | Lo Batt, Spl Max, Int 60, % Dose, dBA, plus a colon and decimalpoint |
Environmental |
Operating Temperature | Operating Temperature: -10° to 50°C |
Temperature Coefficient | ±0.05dB per °C (25° to 50°C) for reference mea-surement of 105dB at1000Hz |
Relative Humidity | <0.5dB (0-95% RH) |
Storage Range | -30° to 45°C (without batteries) |
Magnetic Field Influence | No effect in field of 1 oersted (80A/m) |