TSI Instruments QUEST SD-200 User manual

SOUND DETECTOR
MODEL SD-200
USER MANUAL
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SOUND DETECTOR MODEL SD-200
SD-200: Dangers, Warnings, Cautions & Battery
DANGER!
Failure to observe the following procedures may result in serious personal
injury
Not for use in explosive or hazardous locations. This product is not intrinsically safe.
Contains built-in lithium polymer battery. DO NOT incinerate or dispose of in fire. DO NOT
disassemble, alter, or re-construct.
WARNING!
Failure to observe the following procedures could damage the instrument
Read the manual before operation.
DO NOT store in temperatures exceeding 70°C (158°F).
DO NOT immerse in liquids.
Condensation may damage your instrument.
Substitution of components may impair the accuracy of the instrument. Repair should be
done by authorized service personnel only.
Caution!
General
The battery in this instrument has limited shelf-life, even if never used.
A non-condensing environment is required for proper measurements.
DO NOT charge battery outside the range of 0°C to 40°C (32°F to 104°F).
Battery run-time may be reduced when operating at lower than 0°C (32°F) temperatures.
Battery Power and First Use Recommendation
It is recommended to fully charge the SD-200 for approximately 12 hours prior to
first use.
Intended Use
The SD-200 is intended to measure sound pressure levels in air. Consult your
company’s safety professional for local standards, or call TSI at 1-800-680-1220
(USA) or [phone].

Table of Contents
Table of Contents
SD-200 Overview....................................................................................................................................... 1
Powering on............................................................................................................................................... 2
Viewing Sound Pressure Level (SPL)................................................................................................... 2
Powering off .............................................................................................................................................. 2
Operating ................................................................................................................................................... 3
Overview of operation ........................................................................................................................... 3
Integrating measurements .................................................................................................................... 3
Running and stopping........................................................................................................................... 4
Viewing measurements......................................................................................................................... 4
LED alert screen ................................................................................................................................... 5
Screen indicators .................................................................................................................................. 6
Settings ...................................................................................................................................................... 7
Frequency weighting and time response.............................................................................................. 7
Exchange rate (ER)............................................................................................................................... 7
Charging..................................................................................................................................................... 7
Windscreen................................................................................................................................................ 8
Positioning and tripod mount.................................................................................................................. 8
Calibrating ................................................................................................................................................. 9
Self help ..................................................................................................................................................... 9
Resetting ............................................................................................................................................... 9
Appendix A: Specifications .................................................................................................................. 10
Standards................................................................................................................................................. 10
Mechanical characteristics .................................................................................................................... 10
Electrical characteristics........................................................................................................................ 10
Environmental effects ............................................................................................................................ 11
Temperature Ranges .............................................................................................................................. 11
User Interface .......................................................................................................................................... 11
Display................................................................................................................................................. 11
Keypad ................................................................................................................................................ 11
Measurements......................................................................................................................................... 11
Calibration ............................................................................................................................................... 12
Charging................................................................................................................................................... 12
Special functions .................................................................................................................................... 12

ii. Table of Contents and Figures and Tables
Product information................................................................................................................................ 12
Accessories......................................................................................................................................... 12
Updates .................................................................................................................................................... 13
Warranty................................................................................................................................................... 13
Contact/Service information.................................................................................................................. 15
Technical Contacts.............................................................................................................................. 15
International Contacts ......................................................................................................................... 15
Service .......................................................................................................................................... 15
Technical Support......................................................................................................................... 15
Returning for Service .......................................................................................................................... 15
Figures and Tables
Figure 1-1: SD-200 overview ................................................................................................................... 1
Figure 1-2: Powered on with SPL screen displayed................................................................................ 2
Figure 1-3: Power off screen indication ................................................................................................... 2
Figure 1-4: Comparison of noise sampled over run-time (SPL & LEQ values)......................................... 3
Figure 1-5: LEQ/LAVG screen...................................................................................................................... 4
Figure 1-6: LED Alert screen ................................................................................................................... 5
Figure 1-7: Charging ................................................................................................................................ 7
Figure 1-8: Windscreen attached............................................................................................................. 8
Figure 1-9: Positioning and tripod mount................................................................................................. 8
Figure 1-10: Calibrating the SD-200.......................................................................................................... 9
Table 1-1: LED alert levels........................................................................................................................ 5
Table 1-2: Screen indicators ..................................................................................................................... 6

1 SD-200 Overview
SD-200 Overview
The SD-200 is intended to provide measurements of sound pressure levels in air.
With five easy-to-use keys, the keypad is used for powering on/off, viewing and/or
running measurements, navigating, and setting parameters. (See Table 1-2 for
more information.)
Note: for typical sound measurements when determining hearing protection,
the SD-200 may be set to “Aweighting”with “Slow”response.
Figure 1-1: SD-200 overview
Display
View measurements and screen indicators
Screen indicators
The screen indicators identify
settings and values
On/Off key
Powers the SD-200 On/Off
A/C frequency
weighting key
Press to select
Aor Cfrequency
weighting
Microphone with an attached windscreen
Fast/Slow time response key
Press to select fast or slow
time response
Mode key
Cycles through the measurements and
Run-Time screens
Run & Stop key
Runs and stops
integrating
measurements over the
Run-Time
LEDs
Used in the LED alert measurement screen

2Powering on
Powering on
Press key until the LCD turns on. (Warm-up time is about 5 seconds.)
When powered on, a self-test screen flashes with country code and revision level (e.g. U1.0)
and exchange rate (e.g.3 LEQ/5 LAVG). Then a measurement screen appears.
Viewing Sound Pressure Level (SPL)
The measurement screen will display the current Sound Pressure Level (SPL) in dB or the
previously viewed screen prior to powering off.
Note: no screen indicator appears for SPL.
Figure 1-2: Powered on with SPL screen displayed
Powering off
Once powered off, the SD-200 will save the instrument’s settings and measurements which
are displayed again when powered back on. The SD-200 will not power off while in run mode.
1. Press and hold key until OFF disappears. Releasing within two seconds will keep
the instrument powered on.
Note: while in run, the instrument will not power off until stop is pressed. If the
instrument powers off due to low battery, it will store the last viewed measurements.
(See “Resetting” for more information.)
Figure 1-3: Power off screen indication
On/Off key
To power On/Off,
press and hold for
about 2 seconds
Battery icon
If icon appears,
this indicates battery
is low and requires
charging
Indicator examples
Slow time response and A frequency
weighting indicators
SPL measurements
Value is displayed with no screen indicator

3Operating
Operating
Overview of operation
The list below is a brief overview of the steps for running a study.
Integrating measurements
Integrating measurements compute the average value over a period of time. In many work
environments, noise levels may be highly variable making it difficult to assess the sound level.
With the averaging function, you will see steadier values over the Run-Time (RT).
The chart below depicts the SPL and LEQ values measured over the RT. When the
measurements are compared, the SPL values measure the maximum and minimum values
while the LEQ provides steadier readings over the length of the study.
Figure 1-4: Comparison of noise sampled over Run-Time (SPL & LEQ values)
Quick Help List: typical sound session
1. Power on the SD-200 and ensure the windscreen is attached.
Note: if battery indicator appears, this signifies the instrument needs to be
charged. (See “Charging”)
2. Select the desired settings (A/C weighting, F/S response) and the desired measurement via
the keypad.
3. Position the SD-200 microphone so it is angled about 70 degrees from the noise source.
4. Measures: when first powered on, the SD-200 displays the current SPL or the last viewed
parameter prior to power off.
For integrated measurements, press key. (Noting the LEQ/LAVG values will provide
steadier values over a period of time.)
To view measurements, repeatedly press key and the SD-200 will toggle through
the various screens (SPL, LEQ/LAVG, LED Alert , MAX, MIN, Run-Time .)
5. Power off the instrument.
Integrating example
LEQ provides steadier
values (about 90 dB) over
the RT

4Operating
Running and stopping
The run and stop keys are used to start and stop the Run-Time for integrating
measurements which include: LEQ/LAVG (see Table 1-2 for more information), LED
Alert , MAX, and MIN screens.
1. While powered on, press key. The icon appears.
Note: While in run mode, the settings cannot be changed. (See “Settings”for
more information.)
2. To stop, press key. The icon disappears.
Viewing measurements
The mode key is used to view each measurement screen with its related value.
There are six measurement screens: SPL (no measurement indicator), LEQ/LAVG*,
MAX*, MIN*, LED alert *, and Run-time * screens (*while integrating has
occurred).
Figure 1-5: Measurement screens
Measurement screen examples
(1) SPL screen (2) LEQ/LAVG (3) LED Alert (4) MAX (5) MIN (6) Run-Time
1 2 3
4 5 6
Integrating
Run indicator and LEQ displayed
Mode key
The mode key cycles through the measurements

5Operating
LED alert screen
The LED alert screen displays LEQ/LAVG measurements, a detection icon ,
and activated LED indicator levels. This measurement screen provides an
alternative view to detect the average dB levels with visual preset LED noise levels.
Please refer to Table 1-1 for the levels.
Figure 1-6: LED alert screen
Table 1-1: LED alert levels
LED Alert Levels
Description
Green LED
Flashes when measurements are between 80 to 85 dB
Yellow LED
Flashes when measurements are between 85 to 105 dB
Red LED
Flashes when measurements are above 105 dB
Detection icon
appears on
measurement
screen with
activated LEDs