RS PRO ILM 1332A User manual

Instruction Manual
ILM 1332A
Digital Illuminance Meter
FREN IT DE ES

CONTENTS
Title Page
I. INSTRUCTION....................................................1
II. FEATURES.........................................................1
III. SPECIFICATIONS ..............................................1
IV. NAME OF PARTS AND POSITIONS .................3
V. OPERATING INSTRUCTIONS...........................4
VI. BATTERY CHECK-UP ＆REPLACEMENT ......5
VII. SPECTRAL SENSITIVITY CHARACTERISTIC.6
VIII. MAINTENANCE ..................................................6
IX. RECOMMENDED ILLUMINATION ....................7

EN-1
I
I. . I IN NS ST TR RU UC CT TI IO ON N
The ILM 1332A Digital illuminance meter is a precision
instrument used to measure illuminance in the field.
It is fully cosine corrected for the angular incidence of light.
The illuminance meter is compact, robust and easy to use.
The light sensitive device used in the instrument is a very
stable, long life silicon diode.
I
II I. . F FE EA AT TU UR RE ES S
•
Light-measuring levels ranging from 0.01 lux to 200,000 lux.
•
High accuracy and rapid response.
•
Data-hold function for holding measured values.
•
Unit and symbol display for easy reading.
•
Automatic zeroing.
•
Meter corrected for Luminous Efficiency.
•
Automatic correction factor for nonstandard light sources.
I
II II I. . S SP PE EC CI IF FI IC CA AT TI IO ON NS S
•
Display：3-1/2 digit LCD.
• Measuring ranges：200 , 2,000 , 20,000 and 200,000
LUX ( 20,000 LUX range = reading × 10，200,000 LUX
range = reading ×100）
•
Overrange display：Highest digit of "1" is displayed.

EN-2
•
Spectral response: CIE Photopic. (CIE human eye
response curve).
•
Spectral accuracy: CIE Vλfunction f ’1≦6%
•
Cosine response: f ’2≦2%
•
Accuracy：±3﹪of reading ±0.5﹪full-scale（±4﹪of
reading ±10 digits ＞10,000 lux range）.
（Calibrated to a standard incandescent lamp at colour
temperature of 2856 K）.
•
Repeatability：±2%.
•
Temperature characteristics：±0.1% /
℃.
•
Measuring rate：Approximately 2 readings /sec.
•
Photo detector：Silicon photo diode with filter.
•
Operating temperature and humidity：
0℃to 40℃（32℉to 104℉）10 to 80%RH.
•
Storage temperature and humidity：
-10℃to 60℃（14℉to 140℉）10 to 70%RH.
•
Power source：One 9 Volt battery, NEDA 1604 or JIS
006P or IEC 6LF22/6LR61.
•
Battery life (typical)：200 hours (Alkaline battery).
•
Photo detector lead length：150 cm (approx.).
•
Photo detector dimensions：100(L) × 60(W) × 27(H) mm,
3.94"(L) × 2.36" (W) × 1.06" (H).
•
Dimensions：135(L) × 72(W) × 33(H) mm,
5.31" (L) × 2.83" (W) ×1.3" (H).
•
Weight：250g (8.8oz).
• Accessories：Carrying case, instruction manual and
battery.

EN-3
I
IV V. . N NA AM ME E O OF F P PA AR RT TS S A AN ND D P PO OS SI IT TI IO ON NS S
1. LCD Display：31/2Digits with a maximum reading of
1999, and indicating symbols for: " LUX ",
Data-hold " H ", Range "20,000", "x10"
(reading x10), "200,000", "x100" (reading
x100), Low battery "BT", etc.
2. Range indicator：Indicates 200 LUX, 2000 LUX, 20,000 LUX,
and 200,000 LUX ranges respectively.
3. Power button：The power button turns the illuminance
meter on or off.

EN-4
4. Data-hold button：Press the HOLD button to select
HOLD mode.
When HOLD mode is selected, the
illuminance meter stops all further
measurements. Pressing the HOLD
button again cancels HOLD mode,
causing the illuminance meter to
resume measurement.
5. Range button：Pressing the range button changes from
200 LUX, 2,000 LUX, 20,000 LUX and
200,000 LUX range sequentially.
6. Photo detector.
7. Analog D.C. output :
DC+ on pin and intermediate connector, ground on sleeve.
8. Tilt stand. (Back)
V
V. . O OP PE ER RA AT TI IN NG G I IN NS ST TR RU UC CT TI IO ON NS S
1. Power-up：Press the power button to turn the meter on
or off.
2. Selecting the lux scale：Press the range selection
button to set the desired range.
3. Remove the photo detector cap and position the sensor
perpendicular to the light source.

EN-5
4. Read the illuminance value from the LCD display.
5. Overange：If the instrument only display one "1" in the
M.S.D. position, the input signal is too strong
and a higher range should be selected.
6. Data-hold mode：Press the HOLD key to select HOLD
mode.
When HOLD mode is selected, the illuminance meter
stops all further measurements. Press the HOLD key
again to cancel HOLD mode and normal operation is
resumed.
7. When measurements are complete, replace the photo
detector cap and turn the power selector OFF.
V
VI I. . B BA AT TT TE ER RY Y C CH HE EC CK K- -U UP P ＆
＆
R RE EP PL LA AC CE EM ME EN NT T
1. When the battery power is not sufficient provide
accurate operation, the “BT” symbol will appear on the
LCD indicationg the battery requires replacement
2. After turning off the meter, press the battery cover and
push in the direction of the arrow to open (See drawing
below).
3. Disconnect the battery from the instrument and replace
it with a new 9 Volt type 6LR61 battery (or equivalent),
observing correct polarity. Refit the cover.
4. Turn the instrument on and check for correct operation.

EN-6
V
VI II I. . S SP PE EC CT TR RA AL L S SE EN NS SI IT TI IV VI IT TY Y C CH HA AR RA AC CT TE ER RI IS ST TI IC C
•
The sensor device in the instrument together with its
filter, makes the spectral sensitivity characteristic very
close to the C.I.E. (INTERNATIONAL COMMISSION
ON ILLUMINATION) photopic curve V(λ) as shown in
the following chart.
0
0.2
0.4
0.6
0.8
1
1.2
380 400 420 440 460 480 500 520 540 560 580 600 620 640 660 680 700 720 740 760 780
Wavelength in Nonometers
Relative Sensitivity (%)
0
0.2
0.4
0.6
0.8
1
1.2
Light Meter
CIE
V
VI II II I. . M MA AI IN NT TE EN NA AN NC CE E
1. The white plastic disc on the top of the detector should
be cleaned with a damp cloth when necessary.
2. Do not store the instrument where temperature or
humidity is excessively high.
3. The sensor reference level, as marked on the display
unit face-plate, is the tip of the photo detector globe.
4. The calibration interval for the photo detector will vary
according to operational conditions, but generally the
sensitivity decreases in direct proportion to the product
of luminous intensity and the operational time. In order
to maintain the basic accuracy of the instrument,
periodic calibration is recommended.

EN-7
I
IX X. . R RE EC CO OM MM ME EN ND DE ED D I IL LL LU UM MI IN NA AT TI IO ON N
LOCATIONS Lux
•
OFFICE
Conference, Reception room. 200 ～ 750
Clerical work 700 ～ 1,500
Typing drafting 1000
～
2,000
•
FACTORY
Packing work, Entrance passage 150 ～ 300
Visual work at production line 300 ～ 750
Inspection work 750 ～ 1,500
Electronic parts assembly line 1500
～
3,000
•
HOTEL
Public room, Cloakroom 100 ～
200
Reception, Cashier 200 ～
1,000
•
STORE
Indoors stairs corridor 150 ～
200
Shop window, Packing table 750 ～
1,500
Forefront of shop window 1500
～
3,000
•
HOSPITAL
Sickroom, Warehouse 100 ～
200
300 ～ 750
Medical examination room
Operating room
Emergency treatment 750 ～
1,500
•
SCHOOL
Auditorium, Indoor gymnasium 100 ～
300
Classroom 200 ～
750
Laboratory, Library, Drafting room
500 ～ 1,500