Tenmars ST-109R User manual

ST-109R

Integrating Sound Level Meter

User’s Manual

HB2ST109R001

Contents

1Introduction.......................................................1

2Accessories.......................................................1

3Safety Precaution..............................................1

4Instrument Description ......................................2

5Operation..........................................................3

5.1 Backlight Button.........................................4

5.2 Start/Pause Measuring...............................4

5.3 Data Hold:..................................................4

5.4 Single Record/ Datalogger Reading ...........4

5.5 Product Setup ............................................5

5.6 Integrating Time Setup...............................5

5.7 Auto Power Off...........................................5

5.8 Analog/Communication Output Interface....6

5.9 Record Data Delete/Back-up......................6

5.10 94dB Calibrate ...........................................7

5.11 Microphone Connection Inter-face..............7

5.12 Microphone Extension Test........................8

5.13 Sensitivity Correction..................................9

6Software Installation........................................10

7General Specifications ....................................11

8Electrical specification.....................................12

9Maintenance or Repair....................................14

10 Battery Replacement.......................................14

11 Product Disposal.............................................14

ST-109R

- 1 -

1 Introduction

This Integrating Sound Level Meter (ISLM) is

IEC61672-2002 Class 1 compliant.

2 Accessories

Meter

User’s Manual

AC to DC adaptor

Windscreen ball

Installation disk

USB cable (Mini B type)

AC adapter (9~12V/500mA)

1.5V AA-LR6-AM3 alkaline battery

3 Safety Precaution

Caution! Please refer to this manual.

Improper use may damage the meter ad

its components.

Complies with European Directive.

Do not operate in environments with flammable

gas or humid environments.

Operating altitude: up to 2000M.

Operating environment: Indoor use; Pollution

degree 2.

Clean with soft cloth when dirty, such as glasses

cloth. Do not clean with chemicals and other

solvents.

EMC: EN61326-1:CISPR 11:Group 1, Class B

Class B –Equipment for use in all establishments

other than domestic.

Group1 –RF energy generated is needed for

internal functioning.

ST-109R

- 2 -

4 Instrument Description

1.Microphone

2.Power Button

3.Backlight Button

4.Start or Pause Test

Button

5.Frequency Weighting

Select Button

6.Time Weighting Select

Button

7.Set Button

8.Test function select

button

9.Record dada / Reading

Record dada button

10. Data Hold/ up arrow

button.

11. Clock switch/left

arrow button

12. OK button

13. Clock switch/right

arrow button

14. Shift switch/end

measurement/down

arrow button

15. MICRO SD card slot

16. Analog/RS232

professional output

17. USB

18. DC voltage input

(6V~12V)

ST-109R

- 3 -

5 Operation

1. Press button to power on or off your

product.

2.Press button to selection measurement

mode.

Sound pressure level (SPL)

Equivalent Energy Sound Level (Leq)

Sound exposure level (SEL)

Peak sound pressure (PeakMAX)

3.Press button to switch time weight.

4. Press button to switch frequency weight.

5.Press button to switch shift, end integrating

measurement during integrating.

6.Press button to start integrating measuring

(SPL exclusive) and revoke auto off function.

7.Display measurement readings on LCD.

＊Peak sound pressure (PeakMAX) does not

support time and frequency weighting.

CAUTION

Please mount windscreen to

microphone as shown in figure below to

reduce wind noise when ambient wind

speed is greater than 10m/sec.

ST-109R

- 4 -

5.1 Backlight Button

In standby mode，Press button to turn on

backlight, press button again to turn it off

immediately.

＊Backlight will turn off in 15 seconds automatically.

5.2 Start/Pause Measuring

Press button to start integrating

Leq/SEL/PeakMAX and MAX/MIN lock-up function

with the maximum and minimum values displayed

at the lower row of LCD and measurement interval

upper row of LCD. Press button to pause

measurement and button to abort

measurement.

＊The longest time that the SPL mode, SEL, and

peak sound pressure mode can last is 99 hours,

59 minutes and 59 seconds.

5.3 Data Hold:

Press button to the on/off data HOLD. If the

integrating is started, this function is invalid.

5.4 Single Record/ Datalogger Reading

Each press the button once to display REC

message, increment record count by 1 and log one

measurement record.

Press and hold button for 1 second to enter

record reading mode, press / button to reading

records, press / button to toggle switch time

display between hh:mm:ss and yyyy/mm/dd, press

and hold button for 1 second to exit reading

function.

ST-109R

- 5 -

5.5 Product Setup

Press button to enter set-up mode of this product for

the following:

Press the button to cycle through the following options:

Clock → Auto record → Auto power off → Communication

interface → Delete one record → Delete all record → Copy

SD card → 94dB calibrate → Back to measurement mode

Select settings

/Select place settings

/ Select value up/down

Enter data delete/copy

Enter setup and exit setup page

＊Please get your SD card installed before enabling SD

card copy function. Please refer to section 5.9 for details.

5.6 Integrating Time Setup

In Leg mode the record and integrating time settings are

the same:

Press button to enter Integrating time selection page,

the LCD display REC with the following options for

selection:

10 seconds → 1 minute → 5 minute → 10 minute → 30

minute → 1 hour → 8 hour → 16 hour → 1 day → Custom.

Press / button to point cursors, / button to

change values, with the maximum settings at 23 hours, 59

minutes and 59 seconds.

Enter setup and exit setup page.

5.7 Auto Power Off

The longest auto power off time is 99 minutes; set this to

zero to disable the auto off function.

The auto power off will be disabled accordingly in the USB

connection mode.

ST-109R

- 6 -

5.8 Analog/Communication Output

Interface

This product features to computer communication

inter-face: USB and RS-232.

The RS-232 (TTL) and analog output inter-face shares.

You may select USB or RS232 inter-face in the set-up

mode. The default value is USB.

AC signal output: MAX: 5VP-P/130dB, output impedance

around 600Ω

DC signal output: 10mV/10dB, output impedance around

100Ω

5.9 Record Data Delete/Back-up

You may define the file name with a desktop program: file

extension is "*.IAR", file name may contain up to 8

characters including capital letter A~F and number 0~9.

The auto backup function copies data from this product to

micro SD card and delete them afterwards.

Please connect to external power source for micro SD card

write-in operation to prevent it from failed due to power

outage.

You may manually delete records in the mode of a single

record or all records.

The single record delete function erases the latest one first

and move to the earlies one.

See section 5.5 for the functions of individual buttons.

＊ID of this product is "FFFFFFFF" by default.

＊This product supports a micro SD card in the

FAT16/FAT32 format.

＊The maximum space supported in SD/SDHC mode is

32GB.

ST-109R

- 7 -

5.10 94dB Calibrate

Input 94dB@1KHZ signal.

Last calibration records are displayed at the lower

right corner of LCD.

Current measurement value is displayed at the

lower left corner of LCD.

Time weight value is Fast by default.

Calibration range: 91dB~97dB.

Press button to the selection frequency

weight.

Press button to select shift.

Press button to select full calibration.

Press button to select next setup mode.

Press button to save calibration value and exit

set-up mode.

5.11 Microphone Connection Inter-face

Pin 1: signal input

Pin 2: ground

Pin 3: power supply

Pin 4: X

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