Simpson 897 Operator's Manual
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Simpson 897 Operator's Manual

Dosimeter sound measuring system
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SIMPSON ELECTRIC COMPANY 520 Simpson Avenue
Lac du Flambeau, WI 54538-0099 (715) 588-3311 FAX (715) 588-3326
Printed in U.S.A.
Part No. 06-115891 Edition 6, 05/07
Visit us on the web at: www.simpsonelectric.com
32
Model 897
Dosimeter Sound Measuring System
OPERATOR'S MANUAL
897
SOUND MEASURING SYSTEM
LO BATT
SPL MAX
INT 60s
OFF RUN HOLD
1
4
SPL
"CAL"
TEST
5
DOSE
PEAK
6
TIME
SIMPSON ELECTRIC CO. ELGIN , IL 60120
DOSIMETER
% DOSE
3
dBA
LOCK
2
7
INT
(60 sec)
SETUP
Leq
8
MAX
PRINT
9

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Summary of Contents for Simpson 897

  • Page 1 SETUP DOSE PEAK TIME PRINT SIMPSON ELECTRIC CO. ELGIN , IL 60120 SIMPSON ELECTRIC COMPANY 520 Simpson Avenue Lac du Flambeau, WI 54538-0099 (715) 588-3311 FAX (715) 588-3326 Printed in U.S.A. Part No. 06-115891 Edition 6, 05/07 Visit us on the web at: www.simpsonelectric.com...
  • Page 2 SIMPSON ELECTRIC COMPANY neither assumes nor autho- rizes any other persons to assume for it any other liability in connection with the sales of its products.
  • Page 3 NOTES NOTES...

  • Page 4: Table Of Contents

    Decibel Scale ................... 12 If the display indicates “ERRO3”, turn off the dosimeter and wait 10 seconds. Then Sound Level Meter ................12 turn the dosimeter on. This resets the 897 and the calibration is unaffected. Measurement And Exposure Standards ..........13 Communications <OK>...
  • Page 5 Turn off the calibrator, remove the microphone and replace the windscreen. 4.14 Dosimeter Application The following text describes how to transfer data from the Simpson 897 Dosim- eter into an IBM-compatible computer using Microsoft Works. Using the optional RS-232-C serial cable, catalog #02233, connect the 897 to your computer’s serial port, either COM1 or COM2.
  • Page 6 Never place the operating calibrator tightly against the ear. The high sound level could be harmful, especially to someone with a hearing deficiency. Set the “OFF-RUN-HOLD” slide switch in the 897 to the “RUN” position. Wait until the Display Test sequence is completed, then depress the SPL (CAL) switch.

  • Page 7: Introduction

    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.

  • Page 8: Technical Data

    Hrs:Min is the real-time that the data was logged. is the integrated (60 sec) reading. The 897 conforms to ANSI S1.4-1983, ANSI S1.25-1978, and IEC651 (1979) L-MAX is the maximum sound pressure level for that minute. standards for type S2A sound level meters and noise dosimeters.
  • Page 9 Stored Information: a. The integrated 60 second average printouts of the same data recorded by the 897 in each of the output formats. To obtain a printout in either one of the formats: first set the dosimeter to “HOLD”, b. The highest SPL (Lmax).
  • Page 10 Real-Time Clock: A real-time clock provides time and date in- The 897 has been designed with two special security provisions to prevent unau- formation on the printout. The clock contin- thorized personnel from tampering with the control settings.

  • Page 11: Preparation For Use

    Set Year: Unit Digit: (3-:N) N = number 0 through 9. shipping of the Instrument. Set Year: Decade Digit: (3-:N) N = number 0 through 9. NOTE: The 897 is powered by a self-contained rechargeable nickel cadmium Example: battery pack. Charge Instrument for 16 hours before use.

  • Page 12: Warranty

    NOTE: All OSHA type sound level meters must be A-weighted. B and C weightings are not required for compliance measurements. The sound level meter function of the 897 meets the requirements of the Ameri- can National Standards Institute (ANSI) Standard Specification S1.4 1983 for Leq Upper Limit (H): 115 or 130 dB.

  • Page 13: Measurement And Exposure Standards

    Set the “OFF-RUN-HOLD” switch to the “RUN” position. When the unit is first Standards Institute (ANSI) Specification S1.4-1983. Federal, State and local gov- turned on, a display segment test is performed. Next, the 897 will display in ernments also have defined allowable noise (undesirable sound energy) level sequence given: exposure limits for persons in industrial environments.

  • Page 14: Battery Charging

    The total dose is computed by the expression: The 897 is designed to be used with the Simpson Battery Charger(part no. 6- D + C1 + C2 + — + Cn 115095) which is insulated well enough to permit use of the 897 while being charged.

  • Page 15: Impact Noise

    To activate the summed (accumulated). The dosimeter function of the 897 automatically and keyboard lockout, slide the “OFF-RUN-HOLD” switch to “HOLD”, then select...

  • Page 16: Sound Fields

    3.6.1 Free Field NOTE: When the 897 is exposed to a dusty or windy environment, the windscreen should be used to protect the microphone diaphragm from damage, and to as- This field contains no reflecting objects. Ideally it is a point sound source located sure a correct reading.

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