Lutron Electronics SL-4112 User manual

auto range + type K Temp.

optional Humidity, Light, Anemometer

SOUND LEVEL METER

Model : SL-4112

our purchase of this

SOUND LEVEL METER

marks a step forward for

you into the field o

precision measurement.

lthough this METER is a

complex and delicate

instrument, its durable

structure will allow many

years of use if proper

operating techniques are

developed. Please read

the following instructions

carefully and always keep

this manual within easy

reach.

OPERATION MANUAL

TABLE

CONTENTS

1. FEATURES...............................................................1

2. SPECIFICATIONS.....................................................2

2-1 Electrical specification for Sound level meter...............2

2-2 Electrical specification for Type K/J thermometer........

2-3 General specification.................................................4

2-4 Electrical specifications for optional probe EM-900P.....5

3. FRONT PANEL DESCRIPTION....................................8

3-1 Microphone.............................................................

3-2 Display....................................................................8

3-3 Power Button ( Send Button )...................................8

3-4 Hold Button ( ESC Button ) ......................................8

3-5 REC/Max. Min. Button.............................................. 8

3-6 Mode Button ( Lo

er Button, Enter Button ) ...........

3-7 A/C Wei

htin

Button ( / Button )......................

℃℉ 8

3-8 F/S Button ( Time Wei

htin

Button ) /Unit Button...

3-9 PH Button ( Peak Hold Button ) /Settin

Button......... 8

3-10 Temperature input socket........................................8

3-11 EM-900P probe input socket....................................

3-11A Probe lock switch..................................................8

3-12 Screws for battery cover..........................................8

3-13 Tripod Fix Nut.........................................................8

3-14 Stand.....................................................................8

3-15 Battery compartment / Cover...................................8

3-16 AC Output Socket...................................................

3-17 Sound Calibration VR...............................................8

3-18 RS232 Computer Interface Socket............................8

3-19 DC 9V Power Adapter Input Socket.......................... 8

4. MEASURING PROCEDURES.......................................9

4-1 Sound level meter..............................................9

4-2 Type K/J thermometer........................................12

4-3 EM-900P ( Humidity, Anemometer, Light ) ..........13

4-4 Data Logger.......................................................14

5. FURTHER SETTING..................................................15

5-1 Thermometer, type K. type J selection.......................

5-2 Auto power ON/OFF..................................................16

5-3 Chan

e the data lo

er samplin

time.......................

5-4 To show the balance data numbers in the memory.....

5-5 Clear the existin

savin

data from the memory.........

5-6 Code enterin

for the further calibration usa

e...........18

6. SIGNAL OUTPUT......................................................18

6-1 AC output..........................................................18

6-2 RS232 computer interface...................................18

7. REPLACEMENT of BATTERY......................................20

8 CALIBRATION OF SOUND LEVEL METER...................

9. HOW TO SEND THE DATA OUT FROM THE METER....21

10. FREQUENCY WEIGHTING CHARACTERISTICS

OF A & C NETWORKS.............................................22

11. TIME WEIGHTING (FAST & SLOW)

CHARACTERISTICS.................................................22

1. FEATURES

* Large LCD display, easy to read.

* Frequency and Time weighting meet IEC 61672 class 2.

* A, C frequency weighting networks is selected.

* Time weighting (Fast & Slow) dynamic characteristic

modes.

* 0.5" standard microphone head.

* AC output for system expansion.

* RS232 computer interface.

* Auto range & Manual range selection.

* Available for external calibration adjustment.

* Condenser microphone for high accuracy & long-term

stability.

* Memory function to store the Max. & Min. value.

* Hold and MAX. Hold functions.

* Build in type K and type J thermometer.

* Optional probe ( EM-900P ) for Humidity/Temp.,

Light and Anemometer measurement.

* DC 1.5 V battery ( UM-4, AAA ) X 6 or DC 9V

adapter in.

* Operation key used push button.

* LCD display for low power consumption & clear read-out

even in bright ambient light condition.

* Using the durable, long-lasting components, including a

strong, light weight ABS-plastic housing case.

* Small and light weight design allow one hand operation.

* Patent.

2. SPECIFICATIONS

2-1 Electrical specification for Sound level mete

Function dB ( A & C frequency wei

htin

), Time

wei

htin

( Fast, Slow), Hold, Memory

( Max. & Min. ), Peak hold, AC output,

RS232 output.

Meter default Range set to auto range.

function Frequency weighting set to A weighting.

Time weighting set to fast.

Measurement 30 - 130 dB.

Ran

Resolution 0.1 dB.

Ran

e selector

Auto ran

e :

30 to 130 dB.

Manual ran

e :

3 ran

e, 30 to 80 dB, 50 to 100 dB,

80 to 130 dB, 50 dB on each step,

with over & under ran

e indicatin

Frequency 31.5 to 8,000 Hz.

Microphone type Electric condenser microphone.

Microphone size Out size, 12.7 mm DIA. ( 0.5 inch).

Frequency wei

htin

Characteristics of A & C.

network

* A weighting :

The characteristic is simulated as

"Human Ear Listing" response.

Typical, if making the environmental

sound level measurement, always

select to A weighting.

* C weighting :

The characteristic is near the "FLAT"

response. Typical, it is suitable for

checking the noise of machinery (Q.C.

check) & knowing the sound pressure

level of the tested equipment.

Range selector Manual range: 3 ranges ( 30 to 80 dB,

50 to 100 dB, 80 to 130 dB ).

Auto range: 30 - 130 dB.

Time weighting Fast - t= 200 ms, Slow - t = 500 ms,

( Fast & Slow ) * "Fast" range is simulated the

human ear response time.

* "Slow" range is easy to get the avg.

values of vibration sound level.

* The "Fast" & "Slow" response

range are designed to meet IEC 61672

class 2 requirement.

Calibrator B & K (Bruel & kjaer), MULTIFUCTION

ACOUSTIC CALIBRATOR 4226.

Output Signal

* AC output :

AC 0.5 Vrms correspondin

to each

ran

e step.

Out put impedance - 600 ohm.

* RS232 output.

Output terminal

Terminal 1 :

RS232 computer interface terminal,

photo couple isolated.

Terminal 2 :

AC output terminal.

Terminal socket size :

3.5 mm dia. phone socket.

Calibration VR Build in external calibration VR, easy to

calibrate on 94 dB level by screw driver.

2-2 Electrical specification for

Type K/J thermometer

Sensor Reso- Range Accuracy

Type lution

Type K 0.1 ℃-50.0 to 1300.0 ℃± ( 0.4 % + 0.8 )℃

-50.1 to -199.9 ℃± ( 0.4 % + 1 )℃

0.1 ℉-58.0 to 2372.0 ℉± ( 0.4 % + 1.5 )℉

-58.1 to -327.8 ℉± ( 0.4 % + 1.8 )℉

Type J 0.1 ℃-50.0 to 1100.0 ℃± ( 0.4 % + 0.8 )℃

-50.1 to -199.9 ℃± ( 0.4 % + 1 )℃

0.1 ℉-58.0 to 2012.0 ℉± ( 0.4 % + 1.5 )℉

-58.1 to -327.8 ℉± ( 0.4 % + 1.8 )℉

Accuracy value is specified for the meter only.

Temp. probe ( Type K, TP-01 TP-02A, TP-03. TP-04 ) is the

optional accessories.

2-3 General specification

Display 51 mm x 37 mm LCD (Liquid crystal

display), 5 digits with annunciator.

Operating Temp. 0 to 50 ( 32 to 122 ).℃℉

Operating Humidity Less than 80% RH.

Power Supply DC 1.5 V battery ( UM4, AAA ) x 6 PCs,

or equivalent.

Power Approx. DC 12 mA.

Consumption

Dimension 245 x 68 x 41 mm

( 9.6 x 2.7 x 1.6 inch).

Weight 358 g/0.79 LB (including battery).

Accessory Included Instruction Manual ............... 1 PC.

Optional

94 dB Sound Calibrator :

Accessories Model : SC-941. SC-942.

Sound wind shield ball

Model : SB-01

RS232 cable ( isolated RS232 cable ) :

Model : UPCB-02.

USB cable

Model : USB-01

Application windows software :

Model : SW-U801-WIN.

Type K Temperature probe :

Model : TP-01 TP-02A, TP-03. TP-04

2-4 Electrical specifications for

optional probe EM-900

Anemometer

. Air velocity

Measure

Range Resolu- Accuracy

ment tion

m/S 0.4 - 25.0 m/s 0.1 m/s ± (2% + 0.2 m/s)

km/h 1.4 - 90.0 km/h 0.1 km/h ± (2% + 0.8 km/h)

mph 0.9 - 55.9 mile/h 0.1 mile/h ± (2% + 0.4 mile/h)

knot 0.8 - 48.6 knots 0.1 knots ± (2% + 0.4 knots)

FPM 80 - 4930 ft/min 1 ft/min ± (2%+40 ft/min.)

Note:

m/S - meters per second km/h - kilometers per hour

FPM - feet per minute knot - nautical miles per hour

mph - miles per hour (international knot)

B. Temperature

Measuring Range 0 to 50 /32 to 122℃℃℉ ℉

Resolution 0.1 /0.1℃℉

Accuracy ± 0.8 /1.5℃℉

Humidity/Temp. meter

. Humidity

Measuring Range 0 % to 95 % R.H.

Resolution 0.1 % R.H.

Accuracy 70%RH≧± (3% reading + 1% RH).

< 70%RH ± 3% RH.

B. Temperature

Measuring Range 0 to 50 /32 to 122℃℃℉ ℉

Resolution 0.1 /0.1℃℉

Accuracy ± 0.8 /1.5℃℉

Light meter

Measuring Range LUX 0 to 20,000 LUX.

Ft-cd 0 to 1,860 Ft-cd

Resolution LUX 1 LUX

Ft-cd 0.1 Ft-cd

Accuracy ± ( 5% rdg ± 8 dgt )

Note:

Ft-cd : Feet candle

Above specification tests under the environment RF Field

Strength less than 3 V/M & frequency less than 30 MHz only.

3. FRONT PANEL DESCRIPTION

Table of contents

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