RS PRO ILM 1335 User Manual
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RS PRO ILM 1335 User Manual

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User Manual
RS PRO ILM 1335
stock number: 123-2221
rspro.com

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Summary of Contents for RS PRO ILM 1335

  • Page 1 User Manual RS PRO ILM 1335 stock number: 123-2221 rspro.com...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS TITLE PAGE 1. INTRODUCTION ............1 2. FEATURES ..............2 3. SPECIFICATIONS ............3 4. METER DIAGRAM ............5 5. OPERATING INSTRUCTIONS........7 6. SETTING THE CALIBRATION FACTOR (CAL) ..9 7. SETTING THE SPECTRAL CORRECTION FACTOR (SCF)................

  • Page 3: Introduction

    1. INTRODUCTION • The ILM 1335 digital light meter is a precision instrument used to measure illuminance (lux, footcandle). • It meets CIE photopic spectral response. • It is fully cosine corrected for the angular incidence of light. • The meter is a compact, tough and easy to use instrument.

  • Page 4: Features

    2. FEATURES • Light measurement ranging from 0.01 lux ~ 0.1 klux / 0.01 fc ~ 0.01 kfc, respectievely. • High accuracy and rapid response. • Data-hold function • Digital and analogue graphical display • Automatic zeroing • Meter corrected for spectral relative efficiency. •...

  • Page 5: Specifications

    3. SPECIFICATIONS • Display ： 3-3/4 digit LCD with high speed 42 segment bargraph. • Measuring Range ： 40.00 lux, 400.0 lux, 4000 lux, 40.00 klux and 400.0 klux / 40.00 fc, 400.0 fc, 4000 fc, 40.00 kfc. Note : 1fc=10.76 lux , 1klux=1000 lux , 1kfc=1000 fc •...
  • Page 6 • Operating Temperature & Humidity ： 0 to 40°C （ 32 to 104°F ） & 0% to 80% RH. • Storage Temperature and Humidity ： -10 to 50°C （ 14 to 140°F ） & 0% to 70% RH. • Power Source ： 6 x 1.5V AAA batteries •...

  • Page 7: Meter Diagram

    4. METER DIAGRAM Klux 1. LCD Display ： 3-3/4 digit display with a maximum reading of 3999, and the indicating signs of measured values, unit function symbols, and decimal points etc are displayed. 2. ON/OFF button. rspro.com...
  • Page 8 3. Range Selector button: Sequential selection of 40.00 lux, 400.0 lux, 4000 lux, 40.00 klux, 400.0 klux or 40.00 fc, 400.0 fc, 4000 fc, 40.00 kfc. Total of 5 range for lux and 4 range for fc. 4. Data-Hold button 5.

  • Page 9: Operating Instructions

    5. OPERATING INSTRUCTIONS 1. Power-up ： Press the power button to turn the meter ON or OFF. 2. Selecting the lux or fc scale ： Set the range selection switch to desired lux or fc range. 3. Remove the photo detector cap and hold the sensor towards the light source in a horizontal position.
  • Page 10 9. Relative reading mode ： Press “ △ REL” button to enter Relative mode. The display will show zero and the current reading will be stored as the zero reference value. Press again to exit this mode. 10. When the measurement is completed, replace the photo detector cap and turn the meter off.

  • Page 11: Setting The Calibration Factor (Cal)

    6. SETTING the CALIBRATION FACTOR (CAL) The CAL allows the user to calibrate the meter to any subject desired. It can be used to calibrate the meter to another standard subject for which the illuminance is known, to precisely standardize meters to the same subject. 1.

  • Page 12: Setting The Spectral Correction Factor (Scf)

    7. SETTING the SPECTRAL CORRECTION FACTOR (SCF) When measuring under a light source which has a considerably different spectral distribution from the meter calibration light source, the meter will cause an indication error due to a light deviation of the relative spectral response from spectral luminous efficiency (Vλ).
  • Page 13 “L4 YELLO SCF 0.815”: LED yellow light “L5 PUrPLE SCF 1.148”: LED purple light “L6 – L9 USEr SCF 1.000”: User-specified “U0 FLd SCF 0.994”: Daylight fluorescent lamp “U1 Fuu SCF 0.996”: White fluorescent lamp “U2 FL3 SCF 1.007”: Three-way fluorescent lamp “U3 HgL SCF 0.993”: High-pressure mercury vapor lamp “U4 nAL SCF 0.988”: High-pressure sodium vapor lamp “U5 Stb SCF 0.996”: Standard light source B...

  • Page 14: Battery Check & Replacement

    7. In the measurement mode, press “lux” button for 2 seconds to enter select enable or disable the SCF function mode, press “RANGE” button to select “on” or “OFF” then press “REL” button to stored the selected and exit. If select “on” will enable SCF function, the bargraph “–” mark will blinking displayed.

  • Page 15: Spectral Sensitivity Characteristics

    9. SPECTRAL SENSITIVITY CHARACTERISTICS The response of the photo diode with the filters gives a spectral sensitivity characteristic of the meter which almost matches the C.I.E. (INTERNATIONAL COMMISSION ON ILLUMINATION) photopic curve V(λ) as shown in the following chart. Light Meter Wavelength in Nonometers rspro.com...

  • Page 16: Maintenance

    10. MAINTENANCE 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 reference level, as marked on the face plate, is the tip of the photo detector globe.

  • Page 17: Recommended Illumination

    11. RECOMMENDED ILLUMINATION 1fc = 10.76 Lux LOCATIONS • OFFICE Conference, Reception room. 200 ~ 750 18 ~ 70 Clerical work 700 ~ 1,500 65 ~ 140 Typing drafting 1000 ~ 2,000 93 ~ 186 • FACTORY Visual work at production line 300 ~ 750 28 ~ 70 Inspection work...
  • Page 18 Sickroom, Warehouse 100 ~ 200 9 ~ 18 Medical Examination room 300 ~ 750 28 ~ 70 Operating room Emergency Treatmet 750 ~ 1,500 70 ~ 140 • SCHOOLS Auditorium, Indoor Gymnasium 100 ~ 300 9 ~ 28 Class room 200 ~ 750 18 ~ 70 Laboratory, Library, Drafting,...

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123-2221

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