Lutron Electronics SL-4112 User manual
auto range + type K Temp.
optional Humidity, Light, Anemometer
SOUND LEVEL METER
Model : SL-4112
Y
our purchase of this
SOUND LEVEL METER
marks a step forward for
you into the field o
f
precision measurement.
A
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
OF
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........
.
4
2-3 General specification.................................................4
2-4 Electrical specifications for optional probe EM-900P.....5
3. FRONT PANEL DESCRIPTION....................................8
3-1 Microphone.............................................................
.
8
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
gg
er Button, Enter Button ) ...........
.
8
3-7 A/C Wei
g
htin
g
Button ( / Button )......................
.
℃℉ 8
3-8 F/S Button ( Time Wei
g
htin
g
Button ) /Unit Button...
.
8
3-9 PH Button ( Peak Hold Button ) /Settin
g
Button......... 8
3-10 Temperature input socket........................................8
3-11 EM-900P probe input socket....................................
.
8
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...................................................
.
8
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.......................
.
16
5-2 Auto power ON/OFF..................................................16
5-3 Chan
g
e the data lo
gg
er samplin
g
time.......................
.
17
5-4 To show the balance data numbers in the memory.....
.
17
5-5 Clear the existin
g
savin
g
data from the memory.........
.
17
5-6 Code enterin
g
for the further calibration usa
g
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...................
.
20
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.
1
2. SPECIFICATIONS
2-1 Electrical specification for Sound level mete
r
Function dB ( A & C frequency wei
g
htin
g
), Time
wei
g
htin
g
( 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
g
e
Resolution 0.1 dB.
Ran
g
e selector
Auto ran
g
e :
30 to 130 dB.
Manual ran
g
e :
3 ran
g
e, 30 to 80 dB, 50 to 100 dB,
80 to 130 dB, 50 dB on each step,
with over & under ran
g
e indicatin
g
.
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
g
htin
g
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.
2
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
g
to each
ran
g
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.
3
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.
4
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
P
Anemometer
A
. 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℃℉
5
Humidity/Temp. meter
A
. 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.
6
3. FRONT PANEL DESCRIPTION
7
Table of contents
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