Equipment information

Simpson 897 Other
Manufacturer:
Model:
897
Date:
Category:
Group:
Description:
Dosimeter Sound Measuring System

Information

The Simpson model 897 is a combination dosimeter and Class S2A sound level meter. It is a portable, easy-to-operate, accurate digital sound measurement instrument designed to meet the requirements of OSHA and international noise exposure regulations. The 897 has a built-in data logger with a 31 hour storage capability. There are two standard output formats available with the data logger, a Centronics compatible parallel printer and an RS-232C serial printer or computer. The 897 also meets the requirements for the American National Standard Institute (ANSI) Specification S1.4-1983 and IEC651 for class S2A sound level meters and American National Standard Institute (ANSI) Specification S1.25-1978 for Personal Noise Dosimeters. Measuring continuous, intermittent and impulsive noise in the standard range from 80 dBA to 130 dBA, the 897 also offers a 50 to 100 dB range where lower sound level analysis is desired. When used as a personal noise dosimeter, the 897 may be worn in a shirt pocket or on a belt. The microphone is provided with a clip which can be attached to the operator’s shirt close to the ear. When used as a sound level meter, the Instrument is hand-held. A front end attachment, properly contoured to avoid interference with incoming sound waves, holds the microphone. The advanced microcomputer, large digital display and special electret-condenser microphone offers easy operation and readability, and excellent performance and reliability.

show more

User Manual
Manual Type:
User Manual
Pages:
16
Size:
167.34 Kbytes (171354 Bytes)
Language:
english
Revision:
Manual-ID:
Date:
Quality:
Scanned document, all readable.
Upload date:
2014 11 23
MD5:
4280fffd7c7cffad2d09a85b3bd338e1
Downloads:
589

Information

1. INTRODUCTION ... 7 1.1 General Description ... 7 1.2 Items Furnished With Instrument ... 7 1.3 Technical Data ... 8 2. PREPARATION FOR USE ... 11 2.1 Unpacking And Inspection ... 11 2.2 Preparation For Use ... 11 2.3 Warranty ... 12 2.4 Shipping ... 12 3. APPLICATION ... 12 3.1 Decibel Scale ... 12 3.2 Sound Level Meter ... 12 3.3 Measurement And Exposure Standards ... 13 3.3.1 Steady Level or Slowly Varying Noise ... 13 3.3.2 Impact Noise ... 15 3.4 Dosimeter ... 15 3.5 Dosimeter Equation ... 15 3.6 Sound Fields ... 16 3.6.1 Free Field ... 16 3.6.2 Reverberant Field ... 16 3.7 Microphone Orientation ... 16 3.7.1 Area Monitor in a Free Field ... 16 3.7.2 Fixed Position Monitor in a Reverberant Field ... 16 3.7.3 Use of Dosimeter as a Personal Monitor ... 16 3.8 Windscreen ... 17 4. OPERATION ... 17 4.1 Safety Precautions ... 17 4.2 Operating Items And Features ... 17 4.3 Top Panel Operating Features ... 19 4.4 Battery Charging ... 19 4.5 Preliminary Checks ... 20 4.5.1 Underrange Display ... 20 4.5.2 Overrange Display ... 20 4.5.3 Diagnostic Memory Test ... 20 4.6 Setting The Dosimeter Parameters ... 21 4.6.1 The Dosimeter Parameters ... 21 4.6.2 To Program the Dosimeter ... 21 4.7 Security Controls ... 23 4.8 Selection Of Parallel Or Serial Output Format ... 23 4.9 Automatic Data Logger ... 23 4.10 Data Output Formats ... 24 4.11 Parallel Output And Serial Format 2 “Pm 2” ... 24 4.12 Spreadsheet Output Format “Pm 1” ... 26 4.13 Calibration ... 27 4.14 Dosimeter Application ... 28 4.14.1 Using Microsoft Works 4.0 ... 28 4.14.2 Using Microsoft Works 3.0 For Dos ... 29 4.15 Error Message ... 30

show more