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Sekonic C-4000 Operating Manual
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Sekonic C-4000 Operating Manual

Sekonic C-4000 Operating Manual

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C-4000
Operating Manual
Please read the "Operating Manual" and "Safety Precaution" so that you will fully understand the
features and operation of this product.
Keep this "Operating Manual" and the "Safety Precaution" and "Safety Requirement and
Precaution" in a safe place.
Please see the Startup Guide for information about the basic operations.
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Summary of Contents for Sekonic C-4000

  • Page 1 Spectrometer C-4000 Operating Manual Please read the "Operating Manual" and "Safety Precaution" so that you will fully understand the features and operation of this product. Keep this "Operating Manual" and the "Safety Precaution" and "Safety Requirement and Precaution" in a safe place.
  • Page 2 * Download the Utility from sekonicindustrial.com, and install it on your computer. URL: https://sekonicindustrial.com/downloads To use this Utility, connect your computer to the C-4000 using a USB cable (Type C, available commercially). * A USB cable is not included in the package. Please obtain these separately.

  • Page 3: Safety Precautions

    ■ Safety Precautions Before using this product, please read the "Safety Precautions" for proper operation. ● Display classification The levels of harm or damage that may occur as a result of misuse due to ignoring the displayed instructions are classified and explained using the following symbols. WARNING The WARNING symbol indicates the possibility of death or serious injury if the product is not used properly.

  • Page 4: Safety Precaution

    ● Safety Precaution WARNING ● Infants or toddlers may accidentally wrap the neck strap around their neck, so please place it in a location out of their reach. There is a danger of suffocation. ● Keep the light receptor cap out of reach of infants and children to prevent them from accidentally putting it in their mouths or swallowing it.
  • Page 5 CAUTION ● When controlling the meter with the LCD, gently touch with your finger. Using pointed pens or pencils may scratch the LCD screen or damage the product. ● Any significant impact to the meter housing or LCD screen can cause physical damage and failure of performance.
  • Page 6 Sekonic guarantees out of the total number of dots that the LCD can display". ● Please note that Sekonic assumes no liability, even if the stored data is lost due to a control error or other reason.

  • Page 7: Information For Users On Collection And Disposal Of Old Equipment

    ■ Information for Users on Collection and Disposal of Old Equipment To protect environment, do not through this device and batteries away with the normal household waste at the end of those life, but bring them in at an official collection point of your country for recycling. ●...

  • Page 8: Handling Of Batteries

    ● Handling of Batteries WARNING ● Do not place batteries in open flames, attempt to short, disassemble or apply heat to them, or use unspecified batteries. They may burst and cause fires, serious injury, or damage to the environment. ● Do not disassemble the batteries.

  • Page 9: Maintenance Notes

    NOTE ● If an abnormal indication appears on the LCD after battery replacement or during measurement, or if there is no response even though an operation button on the meter is pressed, remove the batteries, wait at least 10 seconds, and then reinstall them. ■...

  • Page 10: Notes On Using The Bluetooth ® Function

    Sekonic does not guarantee that all wireless connections between this product and devices compatible with the Bluetooth function. ● Please note that Sekonic assumes no liability, even in the event of information leakage when connected using a Bluetooth compatible device. viii...
  • Page 11 ● The radio waves generated by Bluetooth compatible devices may affect the operation of electronic medical devices and other equipment. In some cases, they could lead to an accident. Turn off the power in the following locations. In hospitals, near priority seats on trains, inside aircrafts, in places where flammable gases may be present such as in gasoline stations, or near automatic doors and fire alarms ●...

  • Page 12: Disclaimer

    ■ Disclaimer Sekonic assumes no liability for any failures of this product or any direct or indirect damages arising from its use. ■ Restrictions There are some cautions and restrictions regarding the use of this product. Please read and understand the following before using the meter.

  • Page 13: Terminology And Trademarks

    ● The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by SEKONIC CORPORATION is under license. All other company or product names are trademarks or registered trademarks of the ●...

  • Page 14: Intended Usage

    ● indoor lighting, store lighting, and others. ● Checking the quality, illuminance, and color temperature of light sources in production management by light source manufacturers, etc. ■ Main features of the C-4000 Model name Usage Features C-4000 Industrial The meter can be remotely operated and graphs can be ●...

  • Page 15: Check Included Items

    We Are Penningweg 87B, Zaandam, Netherlands Studiopartners 1507 DG, The Netherlands Bul. Tsvetan Lazarov 90, Sofia Bulgaria Dynaphos Ltd 1582, Bulgaria C-4000 Špansko 22, Zagreb, 10090, Croatia Prizma d.o.o. Croatia Spalena 480/1, Brno-stred- Czech Republic Torf Group s.r.o. Trnita, 60200...

  • Page 16: Table Of Contents

    Disclaimer ................................ ■ Restrictions ..............................■ Terminology and Trademarks ......................... ■ Intended Usage ............................■ Main features of the C-4000 ........................■ Intended Users ............................■ Check Included Items xiii ..........................1. Names of Parts and Functions ....................1-1  Names of Parts .........................
  • Page 17 3. Screen Operation ..........................3-1  Screen and Operation ......................3-1-1  Basic Screen and Operation ....................3-1-2  Icon and Button Operation ....................3-1-3  Input of Numbers/Characters ....................3-2  Screen Transition ........................4. Basic Operations ..........................4-1  Basic Measurement Flow ..................... 4-2  Measure Screen ........................
  • Page 18 7. Meter Settings [Setting] Screen ..................7-1  Setting Items ........................... 7-1-1  Item List ............................ 7-1-2  Item Specifications ......................... 7-1-3  Selecting the Unit of Illuminance ..................7-1-4  Selecting the Auto Power Off Time ..................7-1-5  Selecting the Backlight Brightness ..................7-1-6  Selecting the Auto Dimmer Time ..................

  • Page 19: Names Of Parts And Functions

    1. Names of Parts and Functions Names of Parts and Functions 1-1  Names of Parts [Front View] [Rear View] Light Receptor Cap Light Receptor Power Button Measuring Button Display Panel Battery Cover Latch Battery Cover USB Connector (Type C) [Bottom View] [Battery Compartment Section] Batteries (x2)

  • Page 20: Names Of Parts And Functions

    1. Names of Parts and Functions 1-2  Names of Parts and Functions The following table lists the functions of each part. Part Name Functions Light Receptor Point the Light Receptor directly at light source during reading. Power Button Press to turn ON/OFF. Measuring Button Press for measurement.

  • Page 21: Before Use

    2. Before Use Before Use Attaching the Strap Pass the strap (included) through the outer hole of the Strap Eyelet 8. Pass the opposite end of the strap through the loop at the end of the strap. Strap Eyelet8 Strap of Light Receptor Cap Strap WARNING...
  • Page 22 2. Before Use NOTE ● The strap of the Light Receptor Cap is attached at shipment. If passing the strap (included) through the outer hole of the Strap Eyelet is difficult, first remove the strap of the Light Receptor Cap and then pass them both through together.

  • Page 23: Installing The Batteries

    2. Before Use 2-2  Installing the Batteries Prepare two AA batteries. Slide the Battery Cover Latch in the direction of the arrow and remove the Battery Cover 6. Insert the batteries according to the [+] and [–] symbols in the Battery Compartment 0. While lining up the two tabs on the Battery Cover 6, press the Battery Cover back into place from above.

  • Page 24: Information For Users On Collection And Disposal Of Old Equipment

    2. Before Use CAUTION ● Insulate plus and minus terminals with tape or other insulation material. A short may occur due to the metal parts contacting other batteries or metal, resulting in heat generation, fluid leakage, fire, or other accident. ●...

  • Page 25: Power On/Off

    2. Before Use Power ON/OFF Power ON Attach the Light Receptor Cap. Light Receptor Light Receptor Cover the Light Receptor with the Light Receptor Cap Press the Power Button 2. The meter will turn on and the Opening Screen will be displayed for 2 seconds. Opening Screen Power Button NOTICE...
  • Page 26 2. Before Use Select the language. (Appears only when turned ON for the first time) The Language Selection Screen is displayed. Touch the radio button for the language to be used or its surrounding area. The radio button for the selected language lights in blue. Language Selection Language Selection Screen...
  • Page 27 2. Before Use NOTICE Dark Calibration Confirmation Screen ● When the meter is in Dark calibration mode, the screen displays "Dark calibration. Please cover the light receptor with the cap." is displayed when dark calibration is started, cover the Light Receptor with the Light Receptor Cap and then touch the [Yes] Button to perform dark calibration.

  • Page 28: Power Off

    2. Before Use Touch one of the icons on the Home Screen. The corresponding screen appears. Measure Screen Home Screen Measure (app) Screen Setting Screen Setting Screen Page 1 Page 2 Power OFF Press and hold the Power Button for 1 second or longer. The display turns off and then the meter is powered off.

  • Page 29: Automatic Power Off Function

    2. Before Use 2-4  Automatic Power OFF Function To save battery power, all indications will turn off automatically and the meter will turn OFF approximately 5 minutes (factory setting) after use (after last meter button operation). NOTE ● All measurement values, settings and indications are saved in memory even after the Automatic Power OFF Function is activated or the Power Button is turned OFF.

  • Page 30: Checking The Battery Capacity

    The meter will be shutdown soon." is displayed. When 5 minutes elapse, the power turns OFF. ● When the meter is continuously used at room temperature, the battery life should last 8 hours (based on Sekonic testing methods).

  • Page 31: Replace The Batteries

    2. Before Use Replace the Batteries Press to turn OFF. The meter will turn OFF. NOTICE ● Always turn off the power before replacing batteries. If you replace batteries while the power is turned on, the measurement values that are obtained during operations are not saved.
  • Page 32 2. Before Use CAUTION ● Insulate plus and minus terminals with tape or other insulation material. A short may occur due to the metal parts contacting other batteries or metal, resulting in heat generation, fluid leakage, fire, or other accident. ●...

  • Page 33: Screen Operation

    The ratio for the number of effective dots for this product is set as 99.9% or higher in the quality standards. This ratio refers to"the percentage of displayable dots that Sekonic guarantees out of the total number of dots that the LCD can display".

  • Page 34: Status Bar

    3. Screen Operation [Home Screen] Part Name Description Displays the remaining battery power / memory count / 1  Status bar measuring method. Displays the measurement result and allows you to save 2  [Measure] Icon it. In addition, you can configure the settings of Tool Box ) from the Measure Screen.

  • Page 35: Measure Screen

    3. Screen Operation Measure Screen When you are in the Measure Screen, you have the option of selecting different display items (such as lux or Tcp), Tool Box (to select such functions as Memory Name) or go back to the Home Screen. To change a display item or setting, touch the corresponding icon or button with a blue illuminated line.

  • Page 36: Tool Box Screen

    3. Screen Operation NOTE ● When values are out of display range or measurement range, [Under] or [Over] is displayed. ● Under: Displayed when the value is lower than the measurement range (too dark or color temperature is too low). ●...
  • Page 37 3. Screen Operation Measure (app) Screen (Bluetooth Connection) The Measure (app) Screen allows you to connect the C-4000 with a smartphone or tablet via Bluetooth to perform measurement. ( P40) ® Before using Bluetooth, carefully read "Notes on Using the Bluetooth Function"...

  • Page 38: Setting Screen

    3. Screen Operation Setting Screen The Setting Screen allows you to register and change various settings. Refer to each explanation. ( P81) Setting Screen Setting Screen Page 1 Page 2 [Setting Item List] Part Name Description Select the unit from lx(lx·s), fc(fc·s) or both when measuring Unit of illuminance illuminance.
  • Page 39 3. Screen Operation Part Name Description [Previous page] Icon Displays page 1. [Close] Button Returns to the Home Screen. USB Communication Screen The USB icon is displayed on the screen during USB communication. When the USB cable is connected only the Power ON/OFF Button is operational. USB Communication Screen...

  • Page 40: Icon And Button Operation

    3. Screen Operation 3-1-2  Icon and Button Operation Icon and Button Operation You can switch to the desired screens by touching the corresponding icons and buttons. Measure Screen [Display Item] ( P30) [Tool Box] Icon ( P45) [Memory] Button [Home] Icon ( P15) Touch-enabled Icons Icons with blue illuminated line indicate which icons are operational.
  • Page 41 3. Screen Operation Pull-down Menu Operation You can select data from a list created in advance. A created pull-down menu is displayed by touching the pull-down [▼] Icon. (Example) Memory Name Screen Pull-down menu icon Pull-down menu Blue bar indicates the item selected [OK] Button [Cancel] Button...

  • Page 42: Input Of Numbers/Characters

    3. Screen Operation 3-1-3  Input of Numbers/Characters You can enter numbers and characters. Number and Character Input Screens Numeric Value Input Screen Uppercase Input Screen Lowercase Input Screen (Numbers) (Uppercase Letters) (Lowercase Letters) Number and character input methods Description 0-9, ABC, abc, Touch to display the input value at the top of the screen.

  • Page 43: Screen Transition

    3. Screen Operation 3-2  Screen Transition The basic screen transitions are as follows. The meter measurement settings can be changed from the Measure Screen. Power ON Measure ( P34) Opening Screen Measure with the meter. [Measure Screen] Select the display items depending on the Language application.

  • Page 44: Basic Operations

    4. Basic Operations Basic Operations 4-1  Basic Measurement Flow The basic operations and screens are as follows Measurements and measurement changes are operated from the Measure Screen. Power ON Opening Screen Language Selection Screen Make sure the Light Receptor is covered with the Light Dark Calibration Receptor Cap The user sets the functions...
  • Page 45 4. Basic Operations From the previous page Measuring Measuring Button The LCD dims when measuring. Measuring Screen When measurement is complete, the LCD returns Measure Screen to the previous user set brightness, and the [Memory] Button measurement results are Saving to displayed.

  • Page 46: Measure Screen

    4. Basic Operations 4-2  Measure Screen Displays four user-selected items in numeric value. ( P30) Measure Screen [Display Item] [Tool Box] Icon [Memory] Button [Home] Icon Operation From the Measure Screen, press the Measuring Button on the side of the meter to start measuring. Measurements are now displayed.
  • Page 47 4. Basic Operations NOTE ● To measure the color temperature of a light source properly, point Light Receptor directly at light source during reading. ● Measurement and display will take longer in light levels below 30 lx (2.79 fc). ● The LCD backlight will dim while measuring to avoid influence to measurement.

  • Page 48: Customizing Measuring Displays

    4. Basic Operations 4-3  Customizing Measuring Displays You can customize displayed information to see exactly what you need in single view. Display Item Library Screen [Display Item] [OK] Button [Cancel] Button Operation Touch the [Display Item] indication on the Measure Screen. The Display Item Library Screen will be displayed.
  • Page 49 4. Basic Operations Select the desired Display Item indication. The selected item is displayed with a blue illuminated frame. Display Item Library Screen Display Item Library Screen The selected item is displayed with a blue illuminated frame. [OK] Button [Cancel] Button Touch the [OK] Button.
  • Page 50 4. Basic Operations Display Item List Item Name Content Correlated Color Displays the correlated color temperature. temperature Deviation Displays a deviation from the black body radiation. Displays CIE1931 chromaticity coordinates x. Chromaticity coordinates Displays CIE1931 chromaticity coordinates y. Illuminance Displays the illuminance. It can be set on this spectrometer.* Average Color Displays the average CRI of R1 to R8.

  • Page 51: Measuring Light Sources [Measure Screen]

    Never use organic solvents such as thinner or benzene. ● When taking measurements, the C-4000 should be located at a distance that is approximately 10 times (10X) the diameter of the light source being measured.

  • Page 52: Measure

    5. Measuring Light Sources [Measure Screen] 5-2  Measure 5-2-1  Single Measuring Measure the brightness of a light source when the Measuring Button is pressed. This is effective when the brightness of the light source is constant. Operation Touch the [Measuring Method] Button in the Tool Box Screen. The Measuring Method Screen will be displayed.
  • Page 53 5. Measuring Light Sources [Measure Screen] From the Measure Screen, press the Measuring Button on the side of the meter to start measuring. Measurement value at the time when the Measuring Button is pressed is displayed. While the button is held, the meter measures continuously. When the button is released, measurement ends and the measurement value at the time of release is displayed.
  • Page 54 5. Measuring Light Sources [Measure Screen] Touch the [Memory] Button in the Measure Screen. Memorize the measurement values. When they are saved, the message "Saved as" is displayed. Then, the memory count is updated on the status bar. Measure Screen Measure Screen Memory count indication...

  • Page 55: Continuous Measuring

    5. Measuring Light Sources [Measure Screen] 5-2-2 Continuous Measuring Select continuous measuring when its necessary to measure a light source with variations in light output or uneven illumination. Operation Touch the [Measuring Method] Button in the Tool Box Screen. The Measuring Method Screen will be displayed. (  P73) Tool Box Screen Measuring Method Screen Tool Box Screen...
  • Page 56 5. Measuring Light Sources [Measure Screen] From the Measure Screen, press the Measuring Button on the side of the meter to start measuring. Press the Measuring Button again to stop measuring and the last measured value is displayed. Measurement repeats continuously until it is stopped. Measure Screen Measuring Measuring Button...
  • Page 57 5. Measuring Light Sources [Measure Screen] Touch the [Memory] Button in the Measure Screen. Memorize the measurement values. When they are saved, the message "Saved as" is displayed. Then, the memory count is updated on the status bar. Measure Screen Measure Screen Memory count indication...

  • Page 58: Measure (App)

    5-3  Measure (app) You can operate the meter remotely and view graphs from your smartphone or tablet by connecting to the smartphone app (dedicated app SEKONIC LD, hereinafter referred to as "SEKONIC LD"). ® Before using Bluetooth, carefully read "Notes on Using the Bluetooth Function"...
  • Page 59 A search is made for a device to connect. Touch the [Cancel] Button to return to the Home Screen if the search does not find a smartphone or tablet device. Start SEKONIC LD. If connecting succeeds, the screen switches to the [Connect with "(Host Name)"] Screen.
  • Page 60 5. Measuring Light Sources [Measure Screen] [Connect with "(Host Name)"] is displayed. This is displayed when a connection has been established. The name of the connection device is displayed for the host name. To stop the connection, touch the [Disconnect] Button. Returns to the Home Screen.
  • Page 61 5. Measuring Light Sources [Measure Screen] Functions of SEKONIC LD When you use SEKONIC LD, the following functions are enabled. For details on each function, refer to the app manual. Item Content Free Paid Connect with the meter Connect to the meter from the app via Bluetooth (Ver. 5.0).

  • Page 62: When [Over] Or [Under] Is Displayed

    5. Measuring Light Sources [Measure Screen] 5-4  When [Over] or [Under] is Displayed When [Over] or [Under] is displayed, the light source is out of measuring range. 5-4-1  Display of [Over] or [Under] When [Over] is displayed: The value is higher than the measurement range (too bright or color temperature is too high) of the meter.

  • Page 63: Measurement Tool [Tool Box]

    6. Measurement Tool [Tool Box] Measurement Tool [Tool Box] Selecting Screens from the Tool Box Touch the [ ] icon in the Measure Screen to display the Tool Box Screen. ( P18) You can select screens from the Tool Box as follows. Memory Name Screen Tool Box Screen Measuring Method Screen...

  • Page 64: Using The Memory Function

    6. Measurement Tool [Tool Box] 6-1  Using the Memory Function The Memory Function enables storing light source data for single sources and groups of sources for recall at any time. Up to 99 measurement values can be stored. Memory function also enables naming or renaming the name of memory and clearing the stored value.

  • Page 65: Naming The Measurement Values To Be Saved [Memory Name] Screen

    6. Measurement Tool [Tool Box] 6-1-1  Naming the Measurement Values to Be Saved [Memory Name] Screen You can name the measurement values to be saved. Entering light source names, dates and times, or other information makes the management of saved measurement values easier. To use this function, please follow the steps below: ●...
  • Page 66 6. Measurement Tool [Tool Box] Operation Touch the [Memory Name] Button in the Tool Box Screen. The Memory Name Screen will be displayed. Tool Box Screen Memory Name Screen Touch either the [New Name] or [Select from Memory] Button on the Memory Name Screen.
  • Page 67 6. Measurement Tool [Tool Box] Enter the memory name.  P24) Use the keyboard to create a name for the measured light. Memory Name [New Name] Screen Input Section [OK] Button [Cancel] Button Number/uppercase/ lowercase select button Touch the [OK] Button. Confirms the settings and returns to the previous Memory Name Screen.
  • Page 68 6. Measurement Tool [Tool Box] NOTE ● Memory name count warning Up to 99 memory names can be created. If you attempt to create a new name from the 100th name, the warning message "Memory name exceeded. Delete unnecessary name." is displayed on the screen and the new name cannot be created.
  • Page 69 6. Measurement Tool [Tool Box] Measure light. Press Measuring Button to take a measurement. Measure Screen Measure Screen Measuring Measuring Button [Memory] Button [Tool Box] Icon If you touch the [Save] Button on the Measure Screen, “Saved as” is displayed. The measurement values are saved and linked to the entered memory name.
  • Page 70 6. Measurement Tool [Tool Box] When [Select from Memory] Touch the [Select from Memory] Button on the Memory Name Screen. The Select Name from Memory Screen is displayed. Select Name from Memory Memory Name Screen Screen Pull-down menu [OK] Button [Cancel] Button Select a memory name from the Select Name from Memory Screen.
  • Page 71 6. Measurement Tool [Tool Box] Touch the memory name to select. The selected name is displayed in the name display area. Select Name from Memory Screen Memory name display [OK] Button [Cancel] Button Touch the [OK] Button. Confirms the settings and returns to the previous Memory Name Screen. To return to the Memory Name Screen without selecting, touch the [Cancel] Button.
  • Page 72 6. Measurement Tool [Tool Box] Touch the [Close] Button in the Tool Box Screen. Returns to the Measure Screen. Measure light. Press Measuring Button to take a measurement. Measure Screen Measure Screen Measuring Measuring Button [Memory] Button [Tool Box] Icon If you touch the [Save] Button on the Measure Screen, “Saved as”...

  • Page 73: Managing Memory [Memory Management] Screen

    6. Measurement Tool [Tool Box] 6-1-2  Managing Memory [Memory Management] Screen Memorized measurement values can be recalled with [Recall] on the Memory Management Screen. You can edit or delete a memorized name with [Edit]. Memory Management Screen Operation Touch the [Memory Management] Button in the Tool Box Screen. The Memory Management Screen will be displayed.
  • Page 74 6. Measurement Tool [Tool Box] Align a memory in the selected memory name with the background blue position using the one-step icon or scroll bar. The memory can be set. Memory Management Screen Memory Name One-step icon Memory Scroll bar Blue bar indicates the item selected One-step icon...

  • Page 75: Recalling Saved Measurement Results [Recall] Screen

    6. Measurement Tool [Tool Box] 6-1-3  Recalling Saved Measurement Results [Recall] Screen The memorized measurement values can be recalled by touching the [Recall] Button on the Memory Management Screen. The memory values recalled by [Recall] during memory management are redisplayed in text mode. * When using the smartphone app, you can change the display mode.
  • Page 76 6. Measurement Tool [Tool Box] Align a memory in the selected memory name with the background blue position using the one-step icon or scroll bar. The memory to recall can be set. Memory Management Screen Memory Name One-step icon Memory Scroll bar Blue bar indicates the item selected...
  • Page 77 6. Measurement Tool [Tool Box] Touch the [Close] Button. Returns to the Memory Management Screen. Touch the [Close] Button. Return to the Tool Box Screen.

  • Page 78: Changing The Memory Contents [Memory Edit] Screen

    6. Measurement Tool [Tool Box] 6-1-4  Changing the Memory Contents [Memory Edit] Screen The name of memorized measurement values can be changed or deleted. Memory Edit Screen Operation Touch the [Memory Management] Button in the Tool Box Screen. The Memory Management Screen will be displayed. Select the memory name from the Memory Management Screen.
  • Page 79 6. Measurement Tool [Tool Box] Align a memory in the selected memory name with the background blue position using the one-step icon or scroll bar. The memory to edit can be set. Memory Management Screen One-step icon Blue bar indicates the item selected Scroll bar One-step icon...

  • Page 80: Renaming Memory Name [Memory Rename] Screen

    6. Measurement Tool [Tool Box] 6-1-5  Renaming Memory Name [Memory Rename] Screen The name of measurement values of the memory can be changed. Memory Rename Screen Operation Touch the [Memory Management] Button in the Tool Box Screen. The Memory Management Screen will be displayed. Select the memory name from the Memory Management Screen.
  • Page 81 6. Measurement Tool [Tool Box] Align a memory in the selected memory name with the background blue position using the one-step icon or scroll bar. The memory to change can be set. Memory Management Screen Memory Name One-step icon Scroll bar Blue bar indicates the item selected One-step icon...
  • Page 82 6. Measurement Tool [Tool Box] Enter the memory name to change.  P24) Use the keyboard to create a name for the measured light. Memory Rename Screen [OK] Button [Cancel] Button Number/uppercase/lowercase select button Touch the [OK] Button. Confirm and return to the Memory Edit Screen. To return to the Memory Edit Screen without confirming, touch the [Cancel] Button.
  • Page 83 6. Measurement Tool [Tool Box] Touch the [Close] Button. Returns to the Memory Management Screen. Memory Management Screen Memory Name [Close] Button NOTE ● The renamed screen is registered at the end of the memory names. Memory Management Screen Memory Management Screen Renamed and registered at end of the memory names.

  • Page 84: Deleting Saved Measurement Results [Memory Clear] Screen

    6. Measurement Tool [Tool Box] 6-1-6  Deleting Saved Measurement Results [Memory Clear] Screen You can delete individual or all (batch) memorized measurement values. In Memory Clear, names and memory contents (memory numbers and measurement values) are displayed in the registered order. Memory Clear Screen Operation Touch the [Memory Management] Button in the Tool Box Screen.
  • Page 85 6. Measurement Tool [Tool Box] Align a memory in the selected memory name with the background blue position using the one-step icon or scroll bar. The memory to clear can be set. Touch the [Edit] Button. Memory Edit Screen will be displayed. Memory Management Screen Memory Edit Screen...
  • Page 86 6. Measurement Tool [Tool Box] When clearing memories individually Align a memory in the selected memory name with the background blue position using the one-step icon or scroll bar. The individual memory to delete can be set. Memory Clear Screen Memory Name One-step icon Memory contents display...
  • Page 87 6. Measurement Tool [Tool Box] Touch the [Yes] Button. After deletion is finished, the memory numbers are updated in sequence automatically and the Memory Clear Screen is redisplayed. You can delete other memories by repeating steps 1 to 3. If you do not want to delete the memorized values, touch the [No] Button. Returns to the Memory Clear Screen.
  • Page 88 6. Measurement Tool [Tool Box] When clearing an entire memory name all at once Select the memory name to be deleted and align it with the background blue position. Select the “Memory Name” to be deleted. Memory Clear Screen Memory Name [Name] Button Touch the [Name] Button.
  • Page 89 6. Measurement Tool [Tool Box] Touch the [Yes] Button. Returns to the Memory Clear Screen after deletion. The process may require time depending on the number of memories to be deleted. If you do not want to delete the memorized values, touch the [No] Button. Returns to the Memory Clear Screen.
  • Page 90 6. Measurement Tool [Tool Box] NOTE ● When the only memory name that was set is deleted Since all of the memories in the memory name will be deleted, the [Memory Management] Button on the Tool Box Screen is grayed out and cannot be selected.

  • Page 91: Selecting Measuring Method [Measuring Method] Screen

    6. Measurement Tool [Tool Box] Selecting Measuring Method [Measuring 6-2  Method] Screen Set a measuring method from single measuring or continuous measuring. Measuring Method Screen Select one of the radio buttons. Operation Touch the [Measuring Method] Button in the Tool Box Screen. The Measuring Method Screen will be displayed.
  • Page 92 6. Measurement Tool [Tool Box] Select the desired measuring method. Select Single Measuring (SNG) or Continuous Measuring (CNT). Make the selection by touching one of the radio buttons. Selection is also possible by the touching the surrounding area. The selected radio button is displayed in blue. Measuring Method Screen The selected radio button turns...
  • Page 93 6. Measurement Tool [Tool Box] NOTE [Single Measuring] ● Measurement value at the time when the Measuring Button is pressed is displayed. Measuring continues while you keep the button pressed, and the measurement values are displayed when you release the button. ●...

  • Page 94: Performing Dark Calibration [Dark Calibration] Screen

    6. Measurement Tool [Tool Box] Performing Dark Calibration [Dark Calibration] 6-3  Screen Dark calibration is performed when new batteries are used, 24 hours have passed since the last use or there is a big change in temperature between the time the meter was turned OFF and ON.
  • Page 95 6. Measurement Tool [Tool Box] Attach the Light Receptor Cap to the Light Receptor Light Receptor Light Receptor Touch the [Yes] Button. Dark calibration starts, and the message “Dark calibration in progress. Please wait.” is displayed on the screen during dark calibration. When dark calibration finishes, the Tool Box Screen is redisplayed.
  • Page 96 6. Measurement Tool [Tool Box] When the Following Screen is Displayed Dark Calibration Screen [Yes] Button Cover the Light Receptor with the Light Receptor Light Receptor Cap If the message “No cap detected. Please cover the light receptor with the cap.” is displayed, cover the Light Receptor with the Light Receptor Touch the [Yes] Button.

  • Page 97: Meter Settings [Setting] Screen

    7. Meter Settings [Setting] Screen Meter Settings [Setting] Screen 7-1  Setting Items Here you can customize your meter for your preference in advance. Home Screen [Setting] Icon Setting Screen Setting Screen Page 1 Page 2 To page 1 To page 2 [Close] Button...
  • Page 98 7. Meter Settings [Setting] Screen Operation Touch to select the [Setting] Icon on the Home Screen. The Setting Screen will be displayed. Touch [▲][▼] to display the desired page. Touch the desired setting name. That setting screen will be displayed. Touch the [Close] Button.

  • Page 99: Item List

    7. Meter Settings [Setting] Screen 7-1-1  Item List The Setting Screen items are as follows. Item Name Description Setting Select the unit from lx, fc or both when measuring illuminance. Unit of Illuminance ( P83) Select the time delay before the power automatically turns off after last use (5 min, 10 min, 20 min, No Auto Power Off).

  • Page 100: Item Specifications

    7. Meter Settings [Setting] Screen 7-1-2  Item Specifications The specifications of each item are as follows. Setting Name Item (Default) Unit of Illuminance* lx+fc lx+fc No Auto Auto Power Off 5 min 10 min 20 min Power 5 min Backlight Dark Normal Bright...

  • Page 101: Selecting The Unit Of Illuminance

    7. Meter Settings [Setting] Screen 7-1-3  Selecting the Unit of Illuminance Select the unit when measuring illuminance. * Models sold in some countries do not display illuminance "fc" due to legal restrictions. In this case, "Unit of Illuminance" Button will not appear in Setting screen. Unit of Illuminance Screen Default Operation...
  • Page 102 7. Meter Settings [Setting] Screen Touch the [Unit of Illuminance] Button. Select the unit of illuminance. Unit of Illuminance Screen The selected button will be displayed encircled in blue. [OK] Button [Cancel] Button Touch the [OK] Button. Confirms the settings, and returns to Setting screen. To return to the Setting screen without confirming, touch the [Cancel] Button.

  • Page 103: Selecting The Auto Power Off Time

    7. Meter Settings [Setting] Screen 7-1-4  Selecting the Auto Power Off Time Select the delay time for the automatic power shut down after the last meter usage. (5 min, 10 min, 20 min, No Auto Power Off). When No Auto Power Off is set, the automatic power OFF function is not activated.
  • Page 104 7. Meter Settings [Setting] Screen Select the time for auto power off by touching a radio button. Selection is possible by the touching the surrounding area. Select 5 min, 10 min, 20 min, or No Auto Power Off. Auto Power Off Screen The selected radio button turns blue.

  • Page 105: Selecting The Backlight Brightness

    7. Meter Settings [Setting] Screen 7-1-5  Selecting the Backlight Brightness You can save power or adjust the visibility under the surrounding light conditions by selecting the brightness of the touch panel backlight from [Dark], [Normal], and [Bright]. Backlight Brightness Screen Default Operation Touch the [Backlight Brightness] Button on page 1 of the Setting...
  • Page 106 7. Meter Settings [Setting] Screen Select the brightness of the LCD backlight by touching a radio button. Selection is possible by the touching the surrounding area. Select Dark, Normal or Bright. Backlight Brightness Screen The selected radio button turns blue. [OK] Button [Cancel] Button Touch the [OK] Button.

  • Page 107: Selecting The Auto Dimmer Time

    7. Meter Settings [Setting] Screen 7-1-6  Selecting the Auto Dimmer Time Select the time before the backlight dims after the last meter usage to save power. (20 sec, 40 sec, 60 sec, No Dimmer) Auto Dimmer Screen Default Operation Touch the [Auto Dimmer] Button on page 1 of the Setting screen. The Auto Dimmer Screen will be displayed.
  • Page 108 7. Meter Settings [Setting] Screen Select the dimmer time for the LCD backlight by touching a radio button. Selection is possible by the touching the surrounding area. Select 20 sec, 40 sec, 60 sec, or No Dimmer. Auto Dimmer Screen The selected radio button turns blue.

  • Page 109: Selecting The Language

    7. Meter Settings [Setting] Screen 7-1-7  Selecting the Language You can select the language for display on the meter from 日本語 (Japanese), English, Español (Spanish), Deutsch (German), Français (French), and Italiano (Italian). * You can change the language set when power is turned on for the first time. Language Screen Operation Touch the [Language] Button on page 1 of the Setting screen.
  • Page 110 7. Meter Settings [Setting] Screen Select the language for display by touching a radio button. Selection is possible by the touching the surrounding area. You can select from 日本語 (Japanese), English, Español (Spanish), Deutsch (German), Français (French), and Italiano (Italian). Language Screen The selected radio button turns blue.

  • Page 111: Edit User Information

    7. Meter Settings [Setting] Screen 7-1-8  Edit User Information You can set an administrator number, owner name, or other information as the user information. Edit User Information Screen Factory Setting NOTE ● Up to 16 alphanumeric characters can be entered. Operation Touch the [Edit User Information] Button on page 2 of the Setting screen.
  • Page 112 7. Meter Settings [Setting] Screen Edit the user information. ( P24) Edit User Information Edit User Information Screen Screen [OK] Button [Cancel] Button Number/uppercase/lowercase select button Touch the [OK] Button. The user information is saved, and page 2 of the Setting Screen is redisplayed. To return to the Setting Screen without registering user information, touch the [Cancel] Button.

  • Page 113: Adjust Touch Panel

    7. Meter Settings [Setting] Screen 7-1-9  Adjust Touch Panel Adjust the position of touch panel display. Adjust Touch Panel Screen Operation Touch the [Adjust Touch Panel] Button on page 2 of the Setting screen. The message "Touch the center of the cursor." is displayed on the Adjust Touch Panel Screen.
  • Page 114 7. Meter Settings [Setting] Screen Touch the center of the white cross in the upper left corner of the screen. The touch position moves. The white cross cursor position changes successively. Adjust Touch Panel The white cross appears at the Screen next position The white cross...
  • Page 115 7. Meter Settings [Setting] Screen Continue the process of touching the center of the white cross cursor. A red cross cursor is displayed at the touched positions. Repeat the process at four positions. The touch position is showed The white cross appears at the with a red cross cursor next position Confirm the adjustment.
  • Page 116 7. Meter Settings [Setting] Screen NOTE ● If you touch a location away from the white cross cursor when performing step 3, the red cross will be displayed but the screen will blink to indicate adjustment failure. Perform the adjustment again. Adjust Touch Panel Screen Touch the [Close] Button on page 2 of the Setting screen.

  • Page 117: Factory Setting

    7. Meter Settings [Setting] Screen 7-1-10  Factory Setting Return all display and setting contents of the meter to the factory default. Factory Setting Screen Operation Touch the [Factory Setting] Button on page 2 of the Setting screen. The message "Reset to factory default settings. Are you sure?" is displayed on the Factory Setting Screen.
  • Page 118 7. Meter Settings [Setting] Screen Touch the [Yes] Button. To perform the reset, touch the [Yes] Button. The message "All measurements will be lost when you perform this operation. Are you sure?" is displayed on the Factory Setting Confirmation Screen. Confirm again.

  • Page 119: Select The Language

    7. Meter Settings [Setting] Screen Select the language. The Language Selection Screen is displayed. Select the language to use. Language Selection Language Selection Screen Screen The selected radio button turns blue. [OK] Button Touch the [OK] Button. Confirm the language. NOTE ●...

  • Page 120: Product Information

    7. Meter Settings [Setting] Screen 7-1-11  Product Information The Product Information Screen displays detailed information not displayed in the Measure Screen. Product Information Screen 4  * The content displayed above may differ from the actual screen of the meter. Item Name Description Model Name Displays the model number of the meter.
  • Page 121 7. Meter Settings [Setting] Screen Operation Touch the [Product Information] Button on page 2 of the Setting screen. The Product Information Screen will be displayed. Setting Screen Product Information Page 2 Screen [Close] Button Touch the [Close] Button. The screen returns to page 2 of the Setting Screen. Touch the [Close] Button on page 2 of the Setting screen.

  • Page 122: Regulation Display

    7. Meter Settings [Setting] Screen 7-1-12  Regulation Display The Regulation Screen displays the symbols, approved number, regulation names, etc. which the meter is complaint with. Regulation Screen Operation Touch the [Regulation] Button on page 2 of the Setting screen. The Regulation Screen will be displayed. The display contents will differ depending on the product you have purchased.

  • Page 123: Appendix

    8. Appendix Appendix 8-1  Glossary Term Description Color temperature refers to the chromaticity of a heated object (commonly refer to as a black body) that will vary according to its temperature. The color temperature is measured in units of Kelvin (K) and refers to the temperature of a heated object at a given color or chromaticity.
  • Page 124 8. Appendix Term Description Technical Memorandum TM-30 is, published by Illuminating Engineering Society (IES), the method for evaluating light source color rendition including LED lights. The latest firmware shows TM-30-18 which Rf is identical with Rf of CIE 224:2017. TM-30 The values are based on color appearance of objects with 99 color samples compared to their appearance under the defined reference illuminant.

  • Page 125: Specifications

    9. Specifications Specifications Type ● Spectrometer with CMOS linear image sensor Illuminance meter class ● Corresponds to JIS C 1609-1:2006 for General Class A Illuminance Meters (excluding oblique incident light characteristics) ● Corresponds to DIN 5032 Part 7 Class C (excluding oblique incident light characteristics) Light receiving method ●...
  • Page 126 9. Specifications Repeatability (2σ) ● Illuminance 1% + 1digit (Light source A, 30 lx to 10,000 lx), 5% + 1digit (Light source A, 5 lx to 29.9 lx) ● 0.001 (Light source A, 500 lx to 10,000 lx) 0.002 (Light source A, 100 lx to 499 lx) 0.004 (Light source A, 30 lx to 99 lx) 0.008 (Light source A, 5 lx to 29.9 lx) Visible range relative spectral responsivity characteristics...
  • Page 127 9. Specifications Other functions ● Setting • 8 item settings ● Memory Function • Up to 99 measurements can be saved • Up to 99 memory names can be set ● Memory Clear/Recall Function ● Out of measurement range or out of •...
  • Page 128 9. Specifications * Models sold in some countries do not display illuminance in "fc" due to legal restrictions. In this case, Unit of Illuminance is not displayed. * Specifications and appearance described in this Operating Manual are subject to change for improvement.
  • Page 129 0.983 0.990 lamp In the relative spectral responsivity characteristics of C-4000, error value from the standard spectral luminous efficiency V (λ) is small (f ': 9% or less). Therefore, when using for ordinary purposes, correction based on the color correction factor is not necessary.

  • Page 130: Legal Requirement

    10. Legal Requirement Legal Requirement This product complies with the following legal requirements. Destination Standard Details Europe SAFETY EN 61010-1 EN IEC 61326-1 Wireless RE Directive, RED EN 300 328 EN 301 489-1 EN 301 489-17 EN 62479 Environmental WEEE RoHS REACH North...

  • Page 131: Troubleshooting

    11. Troubleshooting Troubleshooting The following meter status, does not imply there is a meter failure. Please check the possible trouble shooting remedies before requesting service. When the meter does not function normally after checking the following, it may be damaged. Remove the batteries, and ask your retailer or us to service the meter.

  • Page 132: After-Sales Services

    12. After-sales Services After-sales Services Contact your local distributor or retailer that you purchased from 伪 for warranty and service. Even within the warranty period, repair services may be provided 伪 on a paid basis. Check the warranty provided by local distributor or retailer. The warranty is not valid unless a copy of proof of purchase with 伪...
  • Page 133 12. After-sales Services FCC & IC compliance information This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
  • Page 134 7-24-14,Oizumi-Gakuen-Cho,Nerima-Ku,Tokyo 178-8686 Japan TEL +81-3-3978-2335 FAX +81-3-3978-5229 https://www.sekonic.com JT4297630 December 2024...