Topcon BM-9A Instruction Manual
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Topcon BM-9A Instruction Manual

Luminance meter
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INSTRUCTION MANUAL
LUMINANCE METER
Rev.7

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  • Page 1 INSTRUCTION MANUAL LUMINANCE METER Rev.7...

  • Page 3: Introduction

    Thank you so much for your purchasing our TOPCON TECHNOHOUSE Luminance meter BM-9A series. The BM-9A series is high sensitivity and wide range luminance meter. Difference between measured value and reference data can be measurd by using Keyboard with easy.
  • Page 4 This instrument is made of recyclable materials. When you dispose of this instrument, please consign this instrument to recycle dealer.

  • Page 5: Safety Indications

    SAFETY INDICATIONS Warnings and Cautions are indicated on this instrument and in the instruction manual to prevent injury to users and others, prevent damage to property or the like, and to ensure safe use of this instrument. After fully understanding the following indications and symbols, carefully read the section "Safety Precautions,"...

  • Page 6: Safety Precautions

    If you notice strange noise, smell or smoke from this instrument, immediately turn the instrument OFF and unplug the AC adapter from the power outlet. Continued use of this instrument in this state might cause fire. Mandatory Contact your dealer or Topcon Technohouse Corporation.
  • Page 7 DISCLAIMER ・TOPCON TECHNOHOUSE accepts no responsibility for any damages resulting from fires, earthquakes, deeds of any third party and other accidents, as well as damages caused by the user’s intentional or negligent actions, erroneous usage and other usage of the instrument under abnormal conditions.

  • Page 8: Table Of Contents

    CONTENTS INTRODUCTION ............................1 SAFETY INDICATIONS ..........................3 SAFETY PRECAUTIONS ........................... 4 NOTATIONS IN THIS MANUAL ........................8 1. BEFORE USE ............................9 CHECK OF MAIN BODY AND ACCESSORIES ................9 NAMES AND FUNCTIONS OF PARTS ..................10 PREPARATION ..........................14 ................
  • Page 9 GRAPH ..............................47 EXPLANATION OF TERMS ........................49...

  • Page 10: Notations In This Manual

    NOTATIONS IN THIS MANUAL The following notational conventions are used in this manual: Notation Description  [CALL] , [ Means a menu title shown on a keyboard and the display of the instrument. ☞ ‘ ’ Indicates a text referred to in this manual. ☞...

  • Page 11: Before Use

    1. BEFORE USE CHECK OF MAIN BODY AND ACCESSORIES Check that all the following items are included. If not complete, please contact your dealer or TOPCON TEHCHNOHOUSE. ・ Instrument Three type of detector unit are available. (Option) Measuring Angle 2° ：BM-9A20D Measuring Angle 1°...

  • Page 12: Names And Functions Of Parts

    NAMES AND FUNCTIONS OF PARTS ■ Main body BM-9A Three types of detector unit are available. (Option) Measuring angle 2° ：BM-9A20D Detector unit Measuring angle 1° ：BM-9A10D Measuring angle 0.2° ：BM-9A02D Eyepiece Display panel Control unit Object lens Keyboard Analog output connector...
  • Page 13 Name Description Detector unit The sensor of this instrument. Display panel Various kinds of information such as measurement and measuring condition is shown on the display panel. Tripod screw A screw hole to fasten the instrument to a tripod. Specification : 1/4-UNC (depth 5mm) Keyboard This keyboard is to select functions and to input numeric value.
  • Page 14 [C.C.F.] Sets and confirms the value of the correction factor in correction factor Color Correction Factor mode. The BM-9A can memorize one correction factor data. Unassigned Displays percentage of the measured value to the reference data. Or use this switch to set the reference data.
  • Page 15 ■ Names of parts on display screen Manual range display Indicatior for correction factor Measurement range display Battery Indicator Indicator of Readout display Difference Indicator of percentage mode Unit Displayed letters Description [BAT.] Appears when battery capacity is low. Replace batteries as soon as possible when this letter appears.

  • Page 16: Preparation

    PREPARATION 1.3.1 HOW TO MOUNT THE DETECTOR UNIT Push in the detector along with the connector guide in the arrow direction. Be sure to turn off the power switch before connecting disconnecting the detector unit. Insert Detector unit along a guide...

  • Page 17: How To Insert A Battery

    1.3.2 HOW TO INSERT A BATTERY Two AA batteries are required. Those for operation check do not attach at the time of shipment. Purchase those at your dealer. Turn the power switch off and uncover the battery compartment. Insert a battery according to a polar indication shown on the battery compartment. Mount the battery compartment.

  • Page 18: Connection Of Ac Adapter (Separately Sold Optional Accessory)

    1.3.3 CONNECTION OF AC ADAPTER (Separately sold optional accessory) Only use the designated AC adapter. Unapproved AC adapters may cause fire or electric shock. Compulsory Be sure to remove dust and water at the plug and receptacle for the AC adapter. Otherwise, it may cause fire.

  • Page 19: Connecting To Pc

    1.3.4 CONNECTING TO PC To use this instrument with a PC, use a standard accessory USB2.0 cable (Cable Type: A connector – mini B connector) to connect to the PC. Memo ・ For connection to a PC, refer to your PC manual as well. ・Never plug any connectors in or out while the instrument power is on.

  • Page 20: How To Turn Power On/Off

    1.3.5 HOW TO TURN POWER ON/OFF Push the power switch to the ON position to turn on power. When BM-9A10D is attached to the display unit, the mark [CAL10] is displayed and the zero-adjustment starts. The mark is difference from current attached Detector unit [CAL20] ：...

  • Page 21: Measurements Procedures

    2. MEASUREMENTS PROCEDURES 2.1 COLLIMATION OF THE MEASUREMENT OBJECT Do not look directly at bright lights such as the sun or light bulb filaments. Doing so might damage your eyes. Prohibited Remove the cap from the objective lens and the eyepiece. Look into the eyepiece, and turn the diopter adjustment ring of the eyepiece so that the reticle marks are clearly seen in the view finder.

  • Page 22: Luminance Measurement

    2.3 LUMINANCE MEASUREMENT The instrument will be ready for measurement automatically after turning on the power and zero-adjustment. 2.3.1 AUTO-RANGE MEASUREMENT Remove the cap and start measurement. The readout appears on the panel. When the readout is stabilized, read the value. Turn on the HOLD switch, and the readout will be held.

  • Page 23: Manual-Range Measurement

    2.3.2 MANUAL-RANGE MEASUREMENT Remove the cap and start measurement. Push the [AUTO/MANU.] switch on the keyboard. The system switches to manual range. Auto range Manual range Pushing the [MANU. RANGE] switch to advance to the range as follows: 1→2→3→4→5 A measured value appears in the display, read the value when it becomes stable. To fix the readout, Press the hold switch to ON.

  • Page 24: Measurement Range And Resolution

    Range Field 0.01 ～ 15.0 ～ 150 ～ 1,500 ～ 15,000 ～ Measurment 2° Range 28.00 280.0 2,800 28,000 280,000 (BM-9A 20D) Resolution 0.01 0.1 ～ 150 ～ 1,500 ～ 15,000 ～ 150,000 ～ Measurment 1° Range 280.0 2,800 28,000...

  • Page 25: Color Correction Factor (C.c.f.)

    COLOR CORRECTION FACTOR (C.C.F.) Entered C.C.F. is multiplied by the measured value. （C.C.F. : Color Correction Factor） Readout = Measured value × Color Correction factor - How to use Correction factor（C.C.F.） Press [C.C.F.] switch during luminance measurement. When correction factor is active, the [0] mark is blinking on the right side of the Range data.

  • Page 26: Difference (⊿ Mode)

    DIFFERENCE (⊿ mode) The difference between measured value and reference data is displayed. Readout = Difference = (Measured value × Correction factor) - Reference data ※When correction factor setting is not active, correction factor is ignored. Press [⊿] switch durig luminance measurement. In the difference mode, the [⊿] mark appears on the left side of the display.

  • Page 27: Percenteage Mode (% Mode)

    PERCENTEAGE MODE (% mode) Percentage of current measured value to the reference data is displayed. Press [%] switch to return to luminance measurement mode. Readout = Percentage= ((Measured value × Correction factor) / Reference data ) × 100 ※When correction factor is not active, correction factor is ignored. Press [%] switch during luminance measurement.
  • Page 28 ZERO ADJUSTMENT (CAL) Press [CAL] switch to start Zero adjustment.（CAL : Calibration） Memo ・Zero adjustment starts automatically after turning on power. ・Zero adjustment can be conducted regardless of whether the response switch is set to FAST or SLOW. ・The Duration of zero adjustment vary from response switch setting. FAST : About 15 sec SLOW : About 50 sec ・Cap is not required for zero adjustment.

  • Page 29: How T Ouse The Analog Output Connector

    HOW To USE THE ANALOG OUTPUT CONNECTOR The analog output plug has a polarity as shown in the figure. Connect the analog output plug with a shield line by soldering and connect it with an outer recorder. Insert the analog output plug into the analog output connector. The output impedance of the instrument is not more than 100ohm.

  • Page 30: Setting Procedures

    3. SETTING PROCEDURES 3.1 CORRECTION FACTOR SETTING How to enter correction factor （ex： entering 30.20 as correction factor ） Press [C.C.F.] switch for several seconds. The digit at the left end is brinking and the [0] mark appears on the top of display, and Correction factor entry is available.
  • Page 31 Press [SET] switch to confirm the entry. Blinking is stop and correction factor which you entered is displayed for 3 seconds. Correction factor enrty is completed and then returing to luminance measurement. When correction factor is active, readout is the value multiplied measured value and correction factor.

  • Page 32: Reference Data Setting

    3.2 REFERENCE DATA SETTING Set the reference data for the difference and the percenteage mode. The reference data is common between for the difference and the percentage. When the reference data is not entered, the reference data entry screen appears after pussing [⊿] switch or [%] switch.
  • Page 33 Press [●] switch to enter digimal point. Press [SET] switch to confirm entred value. Blinking is stop and correction factor which you entered is displayed for 3 seconds. Changing to the difference or the percentage mode. When correction factor is active, readout is multiplied by measured value and correction factor.
  • Page 34 - Measured value is used as reference data Measure the luminance of the reference light source in luminance measurement mode. Press Hold button to fix the readout after readout is stable. Press [SET] switch to enter the measured value as the reference data. The entered reference data appears for 3 seconds.

  • Page 35: Checking Reference Data

    3.2.2 CHECKING REFERENCE DATA Press [⊿] switch or [%] switch to enter the difference or the percentage mode. Press [CALL] switch. The active reference data is displayed for about 3 seconds, and then returning to the difference or the percentage mode.

  • Page 36: Communication With Pc

    Reads latest error number. The “_” mark means a space. “####” is a numerical value. When PC send a communication command to the BM-9A, the BM-9A returns “OK” as a receipt acknowledgment. When the BM-9A receive improper command, the BM-9A returns “NG”.

  • Page 37: Strn Command

    4.1.1 STRn COMMAND When the BM-9A receive this command, the BM-9A returns measured data in a text format. n: 0 (Auto range) n: 1 – 5 (Manual range) Command BM-9A STRn+(Cr･Lf) OK+(Cr･Lf) Measured value Data +(Cr･Lf) END or NG +(Cr･Lf) 4.1.2 CAL COMMAND...

  • Page 38: Who/Ver/Srl Command

    4.1.3 WHO/VER/SRL COMMAND When the BM-9A receive this command, The BM-9A returns the name of this instrument, program version, and production serial number. Command BM-9A WHO/VER/SEL+(Cr･Lf) OK+(Cr･Lf) instrument name/version/production serial number Data +(Cr･Lf) END+(Cr･Lf) 4.1.4 SCCF COMMAND When the BM-9A receives this command, the BM-9A writes C.C.F. into EEPROM of the BM-9A.

  • Page 39: Ascf Command

    BM-9A ASCF_ # +(Cr･Lf) OK+(Cr･Lf) Complete writing END or NG +(Cr･Lf) 4.1.7 ARCF COMMAND When the BM-9A receive this command, the BM-9A return a status about whether color correction factor (C.C.F.) is active or inactive. Command BM-9A ARCF +(Cr･Lf) OK+(Cr･Lf) Data +(Cr･Lf)

  • Page 40: Output Format

    OUTPUT FORMAT 4.2.1 OUTPUT FORMAT FOR REMOTE MEASUREMENTS Output format list Name of command Format type STRn #.###E±##_R#UC Measured value_Range Unit Resolution in the output format is the same as that in display unit. R# measns measuremtne range. UC means “Unit Cd/m ”...

  • Page 41: Usb Driver

    The following describes the procedure for installing the USB drive into PCs. (For Windows® XP) Insert the CD-ROM supplied with the BM-9A into CD-ROM drive. Select [USBDeviceDriver.exe] in the [Driver] folder in the CD-ROM drive, right-click and click [Run as administrator].
  • Page 42 Memo To uninstall, click [Uninstall] button for step 4 above. Memo The following 2 types of drivers are installed. ・Serial converter ・Serial port...

  • Page 43: Error Message

    Turn off and then on the power of the instrument. Contact your dealer or Topcon Tchnohouse. ●If an error message is still displayed even after you take above action, repair may be required. Contact TOPCON TECHNOHOUSE or the dealer where you purchased this instrument.

  • Page 44: Communication Error Code

    The instrument can not recognize Check if the detector unit is connected to detector unit. the display unit correctly. It no problems are found, contact your dealer or Topcon Technohouse. Zero adjustment canot be complete. Check if the detector unit is connected to the display unit correctly.

  • Page 45: Appendix

    6. APPENDIX ＊ Ｂ* Bｅ SPECIFICATIONS AND PERFORMANCE ｅ ｐ Ｏ Measuring field 2°、1°、0.2° Fixed measuring field Ｎ Optical system Finder：Visual field 5° ／ Objective lens：f = 36mm F2.5 Ｏ 0.01 ～ 280,000 cd/cm Measurement Measuring field 2° Ｆ 0.1 ～ 2,800,000 cd/cm range Measuring field 1°...
  • Page 46 FCC Compliance Information This device complies with Part 15 of FCC Rules. Operation is subject to the following twoconditions: (1) the device may not cause interference, and (2) the device must accept anyinterference, including interference that may cause undesired operation of this device.

  • Page 47: Color Correction Factor

    COLOR CORRECTION FACTOR Correction Light Source factor 400～760nm 0.985 0.997 450～500nm 0.996 500～550nm Equi-Energy Spectrum 550～600nm 1.001 600～650nm 0.996 650～700nm 0.999 R-61 1.107 O-55 1.023 Y-48 1.013 Colored Light (Standard Illuminant A) G-54 0.993 B-46 0.996 T-44 1.003 Fluorescent lamp( F6) 0.989 Fluorescent lamp (F8) 0.989...

  • Page 48: Block Diagram

    BLOCK DIAGRAM ■BM-9A...

  • Page 49: Outline Dimension

    OUTLINE DIMENSION BM-9A ■...
  • Page 50 GRAPH Deviation from spectral luminous efficacy ■ BM-9A Wavelengh [nm] Spectral luminous efficiency IM-600 Memo ・ The above data are obtained by a sample of this instrument. There are some differences in the characteristics between the products.
  • Page 51 The human eye has the sensitivity to the light with wavelengths ranging from 380nm to 780nm, and has most strong sensitivity at 555nm. (Spectral luminous efficiency) The relative spectral responsivity of the BM-9A closely matches the spectral luminous efficiency. The difference between spectral luminous efficacy and Relative spectral response of the BM-9A is evaluated according to JIS C1609 : 2006.
  • Page 52 Parts for maintenance and repair (1*) are kept in stock for 8 years (2*) after the date of manufacture. This period is the repairable period. However, please contact your dealer or Topcon Technohouse for repairs even after the repairable period in case that repair may be still available.
  • Page 53 Tel +81-3(3558)2666 Fax +81-3(3558)4661 ◆ Repair and Calibration Tel +81-3(3558)2710 Fax +81-3(3558)3011 LUMINANCE METER BM-9A INSTRUCTION MANUAL Date of issue: 7th edition January 2017 Issued by TOPCON TECHNOHOUSE CORPORATION 75-1 Hasunuma-cho, Itabashi-ku, Tokyo 174-8580 Japan ©2013 TOPCON TECHNOHOUSE CORPORATION ALL RIGHTS RESERVED...

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