Triplett SL600-KIT Manual de usuario

User Manual

SL600-KIT

Datalogging Sound Level Meter and Calibrator Kit

Introduction

Congratulations on your purchase of the Triplett SL600 Digital Sound Level

Meter.This meter measures and displays sound pressure levels in dB

(decibels) from 30 to 130dB in three measurement ranges. In addition to the

LCD numerical displays, a bargraph is included for quick and easy viewing of

sound level changes. Features include selectable Frequency Weighting (‘A’

and ‘C’), selectable Response Time (Fast and Slow), Max/Min Hold, and

AC/DC analog outputs. PC cable and software enable the user to download

and analyze measured data. This meter is shipped fully tested and calibrated

and, with proper use, will provide years of reliable service.

•

Unique flat surface, modern housing design

•

Automatic Data Hold

•

“MAX/MIN/AVG/DIFF” function

•

Emissivity Digitally adjustable from 0.10 to 1.0

•

Adjustable High and Low Alarms

Safety

Read the following safety information carefully before attempting to operate

or service the meter. Use the meter only as specified in this manual;

otherwise, the protection provided by the meter may be impaired.

Environmental Conditions

▪Altitude up to 2000 meters

▪Relative Humidity: 90% max

▪Operating Temperature: 32 to 104°F (0 to 40°C

Maintenance and Cleaning

•Servicing not covered in this manual should be performed by

qualified personnel.

•Periodically wipe the case with a dry cloth. Do not use abrasives or

solvents.

Meter Description

1. Windscreen

2. LCD Display

3. Setup-button:

4. Record button

5. A/C weighting

6. Max/Min display

7. Range button

8. Microphone

9. Backlight

10. Fast/Slow response

11. HOLD

12. ON/OFF

NOTE: Battery Compartment and Tripod Mount are at the rear

SIDE PANEL

13. External 9VDC power adaptor

14. USB pc port

15. DC/AC analog output

16. CAL potentiometer

DISPLAY

Symbol Function

MAX Maximum hold

MIN Minimum hold

OVER Over range

UNDER Under range

FAST Fast response

SLOW Slow response

dBA A-Weighting

dBC C-Weighting

REC Recording data

AUTO Auto range selection

FULL Memory full

HOLD Data hold

Auto Power Off enabled

Low battery indicate

Initial Setup

Battery Installation/AC Adaptor

The meter can be powered by one 9V battery or by an AC power adaptor.

Before inserting or replacing the battery and before connecting the AC

adaptor, be sure to turn off the meter.

Time and Date Setup

The SETUP mode is used to set the time, date and default measurement

range. Once set, the meter will retain the settings in non-volatile memory.

Resetting should not be required.

NOTE: Press the HOLD button at any time during this procedure to save

the set data and to return to normal operation

1. Make sure the meter is OFF to start

2. Press and hold the SETUP button and then

press the power

button. Release the SETUP button to enter the setup mode.

3. Press the SETUP button to enter the “minutes”

adjustment

screen. Press the LEVEL button

to adjust the minutes to the

current time.

4. Press the SETUP button to enter the “hour”

adjustment screen.

Press the LEVEL button to adjust the hour to the

current time.

“h-P” indicates PM and “h-A” indicates AM.

5. Press the SETUP button to enter the “date”

adjustment screen.

Press the LEVEL button to adjust the date to the

current day.

1. Press the SETUP button to enter the

“month” adjustment screen. Press the

LEVEL button to adjust the display to

the current month.

2. Press the SETUP button to enter the

“year” adjustment screen. Press the

LEVEL button to adjust the display to

the current year.

3. Press the SETUP button two

more times to view the default

range (low “L-050” and high “H-

100”). This range cannot be

adjusted.

9. Press the SETUP button to enter the

time/date reset screen. NOTE: If the

HOLD button is pressed with this screen

displayed the time and date will be reset

to default values.

Measurements

MEASUREMENT CONSIDERATIONS

5. Wind blowing across the microphone increases the noise

measurement. Use the supplied windscreen to cover the

microphone when applicable.

6. Calibrate the instrument before each use if possible. Especially if

the meter has not been used for a long period of time.

7. Do not store or operate the instrument in areas of high temperature

or humidity.

8. Keep meter and microphone dry.

9. Avoid severe vibration. Protect the meter from impact. Do not

drop it. Transport the meter in the supplied case.

10. Remove the battery when the meter is to be stored for long periods of

time.

BASIC OPERATION

1. Turn the meter ON by pressing the button.

2. Select ‘A’ or ‘C” frequency weighting by pressing the A/C button.

3. Select Fast or Slow response time by pressing the FAST/SLOW

button.

4. Use the LEVEL button to select the appropriate range. The range is

shown near the top of the display. Use a range that puts the sound

level reading in the center of the range. If the OVER or UNDER icons

appear on the display, select a new range if possible.

5. The numeric and bargraph displays indicate the sound level

measurement.

6. To turn the meter off, press and hold the button for 3 seconds.

LEVEL

The LEVEL button is used to select the measurement range. Press this

button to step through the ranges as indicated on the display (30 to 80,

50 to 100, 80 to 130, or 30 to 130 autoranging)

A/C FREQUENCY WEIGHTING

Press the A/C button to select ‘A’ or ‘C’ frequency weighting. With ‘A’

weighting selected, the frequency response of the meter is similar to

the response of the human ear. ‘A’ weighting is commonly used for

environmental or hearing conservation programs such as OSHA

regulatory testing and noise ordinance law enforcement. ‘C’

weighting is a much flatter response and is suitable for the sound

level analysis of machines, engines, etc. Most noise measurements

are performed using 'A' Weighting and SLOW Response.

FAST/SLOW RESPONSE TIME

Use the FAST/SLOW button to select a FAST (125 ms) or a SLOW (1

second) response time. Select FAST to capture noise peaks and noises

that occur very quickly. Select the SLOW response to monitor a sound

source that has a consistent noise level or to average quickly changing

levels. Select SLOW response for most applications.

HOLD

Press the HOLD button “freeze” the current reading in the display. Press

the button again to resume normal operation.

MAX / MIN

In the MAX/MIN mode the meter will display and hold either the maximum

or minimum reading. The display will update only when the measured

value exceeds the value presently in the display.

1. Press the MAX/MIN button and the MAX icon will appear on the

display. The reading displayed is the highest reading encountered

since the MAX mode was entered.

2. Press the MAX/MIN button again. The MIN icon will appear

on the display. The reading displayed is the lowest reading

encountered since the MIN mode was entered.

3. Press the MAX/MIN button again to exit the MAX / MIN display mode.

RECORDING DATA

The meter can store up to 20,000 readings at an interval rate of 1 to 59

seconds. Each recording session is saved as a data set and each record

is saved with a date and time stamp. This data can be downloaded using

the supplied software.

Setting the interval time

1. Press and hold the button while turning the meter ON.

0001 and Int will appear in the display.

2. Press the LEVEL button to set the sample interval from once

per second to once per 59 seconds.

3. Press the HOLD button to save the interval setting and exit the

setting mode.

Recording readings

1. Press the REC button to begin recording. The REC icon will appear

on the display.

2. Press the REC button again to stop recording.

3. Auto Power OFF is disabled when the record function is active.

Clearing Stored readings

1. Turn the meter OFF.

2. Press and hold the REC button while turning the meter ON.

3. When (clear) appears on the display, release the REC button.

4. All of the readings that were stored in memory are now erased.

BACKLIGHT

Press the button to turn the LCD backlight on or off. To conserve

battery life, the backlight will automatically turn off after approximately

30 seconds.

AUTO POWER OFF

The meter will automatically shut off after approximately 15 minutes of

inactivity. Press the SETUP

button to disable the auto-power-off feature. The icon in the display

indicates that the auto power off feature is active.

ANALOG OUTPUTS

The meter is equipped with an analog outputfeature.

The analog output jack is located on the meter’s side

panel and requires a 3.5mm stereo phono plug. (1-

AC Output, 2-DC Output, 3- Ground)

AC analog output

The AC output is a retransmitted representation of the meter’s

measurement (note that the output factors in the meter’s frequency

weighting selection ‘A’ or ‘C’).

Output voltage: 1Vrms at full scale of the selected range.

Output impedance: 100Ω approx.

DC analog output

The DC output signal reflects the frequency weighting selected (‘A’ or

‘C’).

Output voltage: 10mV (±1mV) per displayed dB.

Output impedance: 1KΩ approx.

Calibration

Frequent calibration is recommended and

is often required by noise standards and

directives.

1. Turn the meter ON

2. Put the meter in the ‘A’ weighting mode

3. Put the meter in the ‘SLOW’ response mode

4. Place the calibrator onto the microphone.

5. Turn the calibrator ON.

6. Adjust the meter’s CAL potentiometer located

on the side panel

so that the meter’s display matches

the output of the calibrator (typically

94dB or 114dB).

Battery Replacement

The

battery icon will appear on the display when the battery needs replacing.

2. Turn the meter OFF and slide the rear battery cover off.

3. Install the 9V battery and replace the cover.

Never dispose of used batteries or rechargeable batteries in

household waste.

As consumers, users are legally required to take used batteries to

appropriate collection sites, the retail store where the batteries were

purchased, or wherever batteries are sold.

Disposal: Do not dispose of this instrument in household waste. The

user is obligated to take end-of-life devices to a designated collection

point for the disposal of electrical and electronic equipment.

Other Battery Safety Reminders

•Never dispose of batteries in a fire. Batteries may explode or leak.

•Never mix battery types. Always install new batteries of the same type.

USB PC Interface

The meter has a built-in USB port for use with the supplied data acquisition

software. The software allows the user to download stored data, view,

save, export, and print readings from the sound level meter.

SOFTWARE INSTALLATION

Refer to the documentation included with the software for complete

details on installation and operation of the application program and

the USB driver software.

SOFTWARE COMMUNICATION

1. Connect the meter to the PC using the supplied USB cable.

2. Turn the meter ON and press the SETUP button.

3. Launch the application program.

4. Select the COM port which has the CP210X driver installed.

5. Data will appear on the pc screen when communication is

established.

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