Simpson 897 User Manual

Model 897

Dosimeter Sound Measuring System

OPERATOR’S MANUAL

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897 DOSIMETER

SOUND MEASURING SYSTEM

LO BATT	DOSE
SPL MAX
INT 60s

OFF RUN HOLD LOCK

SPL	INT
"CAL"	(60 sec)
TEST	SETUP
DOSE	Leq
PEAK	MAX
TIME	PRINT

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SIMPSON ELECTRIC CO. ELGIN , IL 60120

SIMPSON ELECTRIC COMPANY 520 Simpson Avenue

Lac du Flambeau, WI 54538-0099 [phone] FAX [phone] Printed in U.S.A. Part No. 06-115891 Edition 6, 05/07

Visit us on the web at: www.simpsonelectric.com

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About this Manual	NOTES
To the best of our knowledge and at the time written, the information contained in
this document is technically correct and the procedures accurate and adequate
to operate this instrument in compliance with its original advertised specifica-
tions.

Notes and Safety Information

This Operator’s Manual contains warning symbols which alert the user to check for hazardous conditions. These appear throughout this manual where applicable, and are defined below. To ensure the safety of operating performance of this instrument, these instructions must be adhered to.

! Warning, refer to accompanying documents.

Caution, risk of electric shock. !

This instrument is designed to prevent accidental shock to the operator when properly used. However, no engineering design can render safe an instrument which is used carelessly. Therefore, this manual must be read carefully and completely before making any measurements. Failure to follow directions can result in a serious or fatal accident.

Technical Assistance

SIMPSON ELECTRIC COMPANY offers assistance Monday through Friday 8:00 am to 4:30 pm Central Time. To receive assistance contact Technical Support or Customer Service at [phone].

Internet: http://www.simpsonelectric.com

Warranty and Returns

SIMPSON ELECTRIC COMPANY warrants each instrument and other articles manufactured by it to be free from defects in material and workmanship under normal use and service, its obligation under this warranty being limited to making good at its factory or other article of equipment which shall within one (1) year after delivery of such instrument or other article of equipment to the original purchaser be returned intact to it, or to one of its authorized service centers, with transportation charges prepaid, and which its examination shall disclose to its satisfaction to have been thus defective; this warranty being expressly in lieu of all other warranties expressed or implied and of all other obligations or liabilities on its part, and SIMPSON ELECTRIC COMPANY neither assumes nor authorizes any other persons to assume for it any other liability in connection with the sales of its products.

This warranty shall not apply to any instrument or other article of equipment which shall have been repaired or altered outside the SIMPSON ELECTRIC COMPANY factory or authorized service centers, nor which has been subject to misuse, negligence or accident, incorrect wiring by others, or installation or use not in accord with instructions furnished by the manufacturer.

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NOTES

NOTES

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Contents

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 “Prn 2” ....................................		24
	4.12	Spreadsheet Output Format “Prn 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

12. Save data or copy to another program to print.

Data will remain stored in the dosimeter while the dosimeter is still on; once the dosimeter is turned off, the data will be erased.

4.14.2 Using Microsoft Works 3.0 For Dos

Access the WORKS program, and follow the prompts. Data is first received by the Communications portion of WORKS, then moved to the word processor portion, and finally into the spreadsheet.

From the Quick Start Options Menu, select “Create a New File” and then continue below:

4.15Error Message

If the display indicates “ERRO3”, turn off the dosimeter and wait 10 seconds. Then turn the dosimeter on. This resets the 897 and the calibration is unaffected.

Communications		<OK>
Options
Communication
Baud Rate [match the 897--try 9600]
Data Bits		[8]
Stop Bits		[1]
Handshake		[Hardware]
Parity	[None]
Port	[COM1 or COM2], as required
<OK>

File Save [this will save the setup]

Transfer

Capture Text

Save file as [897.DAT] <OK>

Connect

Connect

>> On the 897, slide the “OFF-ON-HOLD” SWITCH TO “HOLD” AND PRESS “PRINT”. You will see the data appear on the computer screen. When the data stops appearing...

Connect
Connect
OK to disconnect?	<OK>
File
Close
File
Open Existing File

897.DAT <OK>

Open File As <Word Processor> <OK>

Select

Replace

Search for [*...........] <Replace All> <OK>

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NOTES

				FULLY INSERT
				MICROPHONE
	897	DOSIMETER		SET TO "114dB"
	SOUND MEASURING SYSTEM			POSITION
				887-2
			SOUND LEVEL CALIBRATOR
	LO BATT	% DOSE	OUTPUT FREQUENCY: 1000 HERTZ
	SPL MAX	dBA
SET TO "RUN"	INT 60s
			ON	114dB
	OFF RUN HOLD	LOCK	OFF
			ON	94 dB
PRESS
"CAL"			LOW BATTERY
			CAUTION
	SPL	INT	NEVER PLACE CALIBRATOR AGAINS EAR.
			READ OPERATOR'S MANUAL.
	"CAL"	(60 sec)	SIMPSON ELECTRIC CO., ELGIN IL 61020
	TEST	SETUP		MADE IN USA
	DOSE	Leq
	PEAK	MAX

TIME PRINT

SIMPSON ELECTRIC CO. ELGIN , IL 60120

Figure 4-5. Calibration Hookup

f.(Optional) The time and date of this calibration may be recorded in the Instrument’s memory by pressing and holding the “SPL (CAL)” switch until the display flashes “CAL.” The Instrument will retain the two most recent such occurrences, which may be observed only via the DATA OUTPUT. Due to changes in atmospheric conditions, it is recommended that Instrument calibrations be conducted and recorded at the beginning and end of the day.

g.Turn off the calibrator, remove the microphone and replace the windscreen.

4.14Dosimeter Application

The following text describes how to transfer data from the Simpson 897 Dosimeter 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.

4.14.1 Using Microsoft Works 4.0

1.Start Works 4.0

2.In Works Task Launcher, go to Works Tools.

3.Click on Communications.

4.Close the Easy Connect window if necessary.

5.Click on Settings and then Communications.

6.Choose the COM Port that the Dosimeter is connected to, then click on Properties.

7.Set Port Settings to match the Dosimeter (Flow control=Xon/Xoff), click OK.

8.Click OK again.

9.Click on the Dial/Hang-up button on the toolbar.

10.Press PRINT on the Dosimeter.

11.Data should now be displayed.

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