Gigahertz-Optik LIGHTmetric ONE Operating Instructions Manual

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Version 03.2024

Operating instructions

LIGHTmetric ONE

Gigahertz Optik GmbH ● An der Kälberweide 12 ● D-82299 Türkenfeld ●Tel: + 49 / 8193 / 9 37 00 - 0 ● Fax: - 50 ● info@gigahertz-optik.com

Gigahertz Optics Inc. ● 110 Haverhill Road ● Amesbury MA 01913 USA ● Tel: +978.462.1818 ● Fax: +978.462.3677 ● info-us@gigahertz-optik.com

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Summary of Contents for Gigahertz-Optik LIGHTmetric ONE

Page 1 LIGHTmetric ONE Gigahertz Optik GmbH ● An der Kälberweide 12 ● D-82299 Türkenfeld ●Tel: + 49 / 8193 / 9 37 00 - 0 ● Fax: - 50 ● info@gigahertz-optik.com Gigahertz Optics Inc. ● 110 Haverhill Road ● Amesbury MA 01913 USA ● Tel: +978.462.1818 ● Fax: +978.462.3677 ● info-us@gigahertz-optik.com...
Page 2 Contact details ........................................7 1.12 Waste disposal ........................................7 1.13 Review ............................................7 General LIGHTmetric ONE ......................................8 Intended use .......................................... 8 Handling ..........................................8 Technical data & storage ....................................8 Scope of delivery ........................................8 Product registration ......................................8 Description of the meter ........................................
Page 3 Error Offset .......................................... 31 Error RTC update needed ....................................31 Miscellaneous........................................... 32 Calibration ..........................................32 Cleaning ..........................................32 Possible causes of errors ....................................32 Service address ........................................32 Further information ......................................33 © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 3...
Page 4 Operating instructions Appendix ............................................34 Filter types for lighting filters ..................................34 © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 4...
Page 5 The instruction of the device operator must include this potential hazard. As the manufacturer of the device, Gigahertz-Optik GmbH informs the owner of the device about possible hazards • when using the device by means of these operating instructions. The owner and responsible operator of the device confirm receipt and acknowledgement of this information by accepting the device and the operating instructions.
Page 6 Operating instructions In general, the terms of delivery and payment of Gigahertz-Optik GmbH apply. • 1.4 Safety supplements The device is designed for operation in a clean environment and at the operating temperatures. • Unless explicitly stated otherwise (e.g. in the specifications), the device and accessories should not be exposed to •...
Page 7 In the event of a warranty claim, the user must send a written notification with the product name, serial number, • date of purchase and description of the defect to Gigahertz-Optik GmbH and in return will receive a service number (RMA) for the return shipment.
Page 8 Operating instructions General LIGHTmetric ONE The LIGHTmetric ONE, developed, designed and produced by Gigahertz Optik GmbH, is a measuring device for spectral irradiance measurement and color evaluation. Ideal for photographers, video artists, architects and many more. 2.1 Intended use The LIGHTmetric ONE is used to measure spectral irradiance and color characteristics •...
Page 9 Description of the meter Entrance optics Shutter / aperture (dark offset) Touch screen Eyelet for carrying strap Start measurement (button 1) Save measurement (button 2) Tripod thread for mounting (rear) © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 9...
Page 10 The LIGHTmetric ONE can be controlled using the S-LIGHTmetric. Further information on this can be found in the software manual. 3.5 Control via smartphones (app) The LIGHTmetric ONE can be controlled via Bluetooth using a smartphone app. Further information on this can be found in the app manual. © all rights with Gigahertz-Optik GmbH...
Page 11 Start measurement Change measuring mode Open menu Next display Alternative display / second view In the menu: Change value / selection Confirm Cancel © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 11...
Page 12 A regular measurement can be started as follows: Move the slider below the input optics to the • "OPEN" position Start measurement by pressing the red button • Possible error message: "error offset" see section 5.2. © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 12...
Page 13 The measurements are repeated until the pause symbol (appears instead of the arrow) is pressed. 4.6 Open menu The menu can be opened by pressing the menu button "≡". © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 13...
Page 14 The display has two views which can be switched by pressing "view <>": CRI values as large numerical values • CRI values as small numerical values and also as • colored bars. © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 14...
Page 16 The reference light source can be selected in the menu using the arrow up "▲" and arrow down "▼" buttons. There is a choice: NL-A: Standard illuminant - A • Color temperature (adjustable) • S-L41-LED • • • © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 16...
Page 18 TCLI values 1 to 18 as large numerical values • Color plates 1 to 18 with TLCI value below • Color plates 19 to 24 with TLCI value below • © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 18...
Page 19 The minimum value of the y-axis is always 0. The maximum value of the y-axis is shown just above the axis (here: 70.00). The unit of the y-axis is shown to the left of the axis (here: mW/m²/nm) © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 19...
Page 20 This display shows the melanopic values: Ev: Illuminance • Ee,mel: Melanopic Irradiance • Evmel,D65: Daylight Equivalent Melanopic • Illuminance – Melanopic EDI To display the measurand “Equivialent Melanopic Lux (EML)”, see 4.9.13. © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 20...
Page 21 By pressing the arrow up "▲" and arrow down "▼" buttons, further entries in the list can be displayed. Press "cancel" to exit the menu. © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 21...
Page 22 The corresponding display can be activated or deactivated by pressing the checkbox. The settings made are saved by pressing "ok". Pressing "cancel" exits the menu without saving the settings. © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 22...
Page 23 If the exposure time is greater than the set "Shutter time", only one measurement is taken. 4.9.5 Observer mode The observation angle for calculating the color coordinates of 2° or 10° can be selected in this menu. © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 23...
Page 24 In this menu, you can choose between a dark and light display. 4.9.7 Unit The unit of the illuminance display can be selected in this menu. There is a choice: lx (Lux) • fc (foot-candle) • © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 24...
Page 25 Delete data All measurement data can be deleted from the device in this menu. Attention: Please ensure that the required data is backed up beforehand. This process cannot be undone. © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 25...
Page 26 With short flash times (shorter measuring time trigger + 100 µs + exposure time), it may make more sense to use synchronization via sync cable (see 4.10) © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 26...
Page 28 “show EML” is available in the menu. This menu can be used to activate an additional line in the Melanopic display. This line shows the measurand “Equivialent Melanopic Lux (EML)”. © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 28...
Page 29 Operating instructions 4.10 Synchronization The LIGHTmetric ONE can be connected to a camera using a standard flash sync cable. The device automatically recognizes whether the 3.5 mm jack plug has been plugged into the corresponding socket. As soon as the flash synchronization pulse is detected via the cable, a measurement is started.
Page 30 The device reminds the user of the recommended calibration after approx. one year. The next reminder can be postponed by up to 30 days into the future if desired ("remind later"). © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 30...
Page 31 Solution: Connect the device to the PC via USB and set the RTC using the software (see software manual). Fully charge the device. © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 31...
Page 32 > Switch off the device, switch it on again and repeat the measurement If the error persists, please contact Gigahertz-Optik GmbH support. Alternatively, please send the device with accessories to Gigahertz-Optik GmbH for inspection. The meter does not switch on •...
Page 33 Operating instructions 6.5 Further information Further information about the product, technical articles, tutorial area, news about Gigahertz-Optik GmbH and other products, accessories and services can be found at: www.gigahertz-optik.de © all rights with Gigahertz-Optik GmbH LIGHTmetric ONE / Page 33...
Page 34 Appendix 7.1 Filter types for lighting filters The following filter types are currently implemented for optimizing the colour temperature. In principle, further filter types can be implemented. If required, please contact Gigahertz-Optik (see contact details). LEE lighting filter Filter number...

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