PCE Americas Inc.
711 Commerce Way
Suite 8
Jupiter
FL-33458
USA
From outside US: +1
Tel: (561) 320-9162
Fax: (561) 320-9176
info@pce-americas.com
PCE Instruments UK Ltd.
Units 12/13
Southpoint Business Park
Ensign way
Hampshire / Southampton
United Kingdom, SO31 4RF
From outside UK: +44
Tel: (0) 2380 98703 0
Fax: (0) 2380 98703 9
info@pce-instruments.com
www.pce-instruments.com/english
www.pce-instruments.com
Manual
Color Meter MK350N Plus
Version 1.0
Date of creation: 23.07.2015
Date of last change: 25.08.2015
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Contents
1 Introduction ............................................................................................................. 3
1.1 Packing Contens ........................................................................................................................ 3
1.2 Appearance Introduction ............................................................................................................ 4
1.3 Product Features ........................................................................................................................ 4
1.4 Annual Product Calibration ......................................................................................................... 5
1.5 Product Notes and Precautions .................................................................................................. 5
2 Preparing before Use .............................................................................................. 6
2.1 Battery Installation and Charging ............................................................................................... 6
2.2 Memory Card Installation ............................................................................................................ 8
2.3 Strap and Neck Strap Installation ............................................................................................... 9
2.4 Screen Wiper Usage Method ................................................................................................... 10
2.5 Power On / Off .......................................................................................................................... 10
2.6 Dark Calibration ........................................................................................................................ 11
2.7 Option Function Setting ............................................................................................................ 12
2.8 System Reset ........................................................................................................................... 14
3 System overview ................................................................................................... 15
3.1 Measurement Modes Introduction ............................................................................................ 15
3.2 Continuous Measurement Introduction .................................................................................... 20
3.3 Customizing BASIC Mode List ................................................................................................. 21
3.4 BROWSER Mode Introduction ................................................................................................. 22
3.5 PC Connection ......................................................................................................................... 23
4 Specification .......................................................................................................... 24
4.1 Product Specification ................................................................................................................ 24
5 Contact ................................................................................................................... 26
5.1 PCE Instruments UK ................................................................................................................ 26
5.2 PCE Americas .......................................................................................................................... 26
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1 Introduction
1.1 Packing Contens
Please check MK350N PLUS packing before use, contact your agent if there are missing items.
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1.2 Appearance Introduction
1.3 Product Features
1. 250 g only, light and easy to carry everywhere.
2. Measure at any time, high mobility.
3. 3.5” colour touch screen, simple interface, easy to use.
4. SD card storage, easy to transfer data.
5. Built-in file browser allows for quick access to previously saved data.
6. Spectrum diagram and including 35 light unit-of-measure.
7. Flicker measurement for disease prevention and health check.
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1.4 Annual Product Calibration
This product is a high-precision measurement device with sensitive components, please use with care. To
ensure the accuracy of measurements, it is recommended to have the unit calibrated once a year. Please
contact your agent or our customer service department for calibration service.
1.5 Product Notes and Precautions
1. The MK350N PLUS LED Meter contains sensitive components. Please unpack with care, as any
trauma to the unit may damage the equipment. Contact your agent if the unit appears not to be
operating normally. Do not attempt any repairs – all repairs must be performed by qualified
service agents.
2. Most LCD screens have a very small and inconsequential defective pixel rate (usually less than
0.1%). This results in occasional pinpoints of white or other colors but will not affect the accuracy
of measurements.
Precautions / Warnings
Please read the following precautions to avoid fire, excessive heat, chemical leakage and explosion.
Do not disassemble or modify the battery.
Do not expose the battery to heat (fire) or water/moisture.
When disposing used/old batteries, wrap with insulation tape to shield the battery from electrical
contact with metallic objects, which might ignite a fire or explosion.
If the unit is plugged into the power adapter and the battery seems to be overheating, or if there is
smoke or peculiar odors emanating from the unit, unplug immediately to avoid the possibility of
fire.
However, do not touch the cables if there is heat emanating from near the cables as melted or
deformed cables could expose wiring and result in burns or electric shock.
Do not use cloth or anything to wrap or cover the equipment while charging – this could cause the
unit to overheat, melting the casing or causing fire.
If the unit is accidentally immersed to water, or if moisture has seeped inside, or metal objects
have dropped into the casing, immediately remove the battery to avoid fire or electric shock.
Do not operate or store the battery in high-temperature environments – it will cause battery
leakage and/or shorten the life of the battery.
Do not use paint thinner, benzene or other organic solvents to clean the equipment – this may
damage the exterior finish or touch screen, and may even ignite fire.
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2 Preparing before Use
2.1 Battery Installation and Charging
Battery installation:
1. Hold MK350N PLUS, then press the battery cover.
2. Press the battery cover down to remove it
3. Install the battery after removing battery cover.
Note:
1. Please charge the battery for 6 hours at first time usage.
2. To avoid any interruption while measuring, please check battery status before use.
3. Please purchase a new battery if it gets low easily after being fully charged, which means battery
life comes to an end.
4. Usage time will depend on battery life, MK350N PLUS battery can operate 5 hours after being
fully charged.
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Battery charging:
1. Plug power charging cable into power jack to start charging
2. Power Off Status: Users can check power key, it will light in red while charging and light off after
being fully charged
3. Power On Status: Users can check MK350N PLUS screen, it will appear a lightning symbol to
indicate charging, and a lightning symbol will disappear after being fully charged.
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2.2 Memory Card Installation
Installing the SD card:
Remove the SD card:
Note:
1. Check SD card status, refer “2.7 storage”.
2. Check SD card storage method, refer “3.2 Save Measured Data”
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2.3 Strap and Neck Strap Installation
Strap installation:
1. Unscrew the strap
2. Tie the strap to the strap hole of MK350N PLUS
3. Tie the strap to the sensor cover
4. Screw the strap
Neck strap installation
Tie on the strap hole of MK350N PLUS
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2.4 Screen Wiper Usage Method
1. The wiper can remove the dirt easily.
2. Strong absorbent and no effect after repeated washing.
3. Can use bleach for wash but do not iron the wiper.
2.5 Power On / Off
Turn on the power: Press the power key for 1 second.
Turn off the power: Press the power key for 5 seconds.
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2.6 Dark Calibration
1. After turning on MK350N PLUS, system will process dark calibration automatically.
Note: Suggest to execute dark calibration every time when turning on MK350N PLUS.
2. When using MK350N PLUS, users can execute dark calibration manually.
Users can go to measurement page, then select MEASUREMENT SETTING DARK
CALIBRATION to execute dark calibration manually.
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2.7 Option Function Setting
Go to main menu and select OPTION to start system setting.
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Note:
1. Pease set up date and time before saving the files.
2. Users can set up auto power-off time to saving battery power. Default auto power-off setting is 10
minutes.
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2.8 System Reset
Users can press the reset key to turn off the system if system crashes.
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3 System overview
3.1 Measurement Modes Introduction
4 kinds of measurement modes:
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Interface Introduction:
1. Measurement mode – BASIC / SPECTRUM / CIE1931 / CIE1976
2. Integration mode - Auto / Manual
3. Capture function – One time / Continuous
4. Battery capacity
5. Measurement result
6. Measurement setting
7. Back to main menu
8. Save data
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1. Point sensor head at light source with suggest angle 30°.
2. At appropriate distance, then press capture key.
3. After beep sound, measured data will be displayed on the screen.
Note: Operation sound setting, refer “3.3 Operation sound”
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Save measured data:
Note:
1. Save format setting, refer “3.3 Save format”
2. Available capacity of SD card, refer “2.7 Storage”
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Please go to measurement page to do measurement settings.
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3.2 Continuous Measurement Introduction
Note:
1. Continuous measurement has no beep sound after press capture key.
2. Users cannot save the measurement data while processing continuous measurement.
3. Adjust the integration time is only allowed in the manual mode.
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3.3 Customizing BASIC Mode List
1. Tap the box of measuring unit
2. Select an item from the list
3. The new data item will be displayed
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3.4 BROWSER Mode Introduction
The Browser (on Home Screen) allows you to review historical data that was previously saved to the SD
card.
1. Press the “BROWSER” icon.
2. A file browser will now show the files on the SD card. If you select an excel file, a review menu
will be displayed.
3. Press any of the icons to review the data.
4. Displaying the data of excel file.
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3.5 PC Connection
You can attach a Windows based PC directly to the MK350N PLUS using the enclosed USB cable. This
allows your PC to use Windows Explorer to view data or transfer data that was saved onto the MK350N
PLUS SD Card (Excel files or JPG files).
After connection, the MK350N PLUS screen will display as shown.
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4 Specification
4.1 Product Specification
Sensor
CMOS linear image sensor
Spectral Bandwidth
Approx. 12 nm (half bandwidth)
Receptor Size
Ø 6.6 ± 0.1 mm
Cosine Correction
Refer Figure 1.
Measurement Range
70 … 70000 lux
Wavelength Range
380 … 780 nm
Integration Time Range
6 … 1000 ms
Capture Function
One time / Continuous
Integration Mode
Auto / Manual
Measuring Modes
1. Basic Value Mode
2. Spectrum Graph Mode
3. CIE 1931 Chromaticity Coordinates
4. CIE 1976 U.C.S Chromaticity Coordinates
Measuring Capabilities
1. Illuminance / Lux
2. Spectral Irradiance
3. C.I.E. Chromaticity Coordinates
(1) CIE 1931 x,y Coordinates
(2) CIE 1976 U.C.S u’,v’ Coordinates
(3) CIE 1921 XYZ colour space
4. Peak Wavelength
5. Delta uv.
6. ∆x, ∆y, ∆u’, ∆v’
7. Correlated Colour Temperature (CCT)
8. Colour Rendering Index (Ra / R1 … R15)
9. Colour Quality Scale (CQS)
10. TLCI
11. Flicker Percentage
12. SP Ratio (Scotopic and Photopic)
13. Foot Candle
Digital Resolution
16 bits
Dark Calibration
Yes
Stray Light
-25 dB max
*1
Wavelength Data Increment
1 nm
Wavelength Reproducibility
± 1 nm
*2
Illuminance Accuracy
Illuminant A @2856K at 20000
Lux
± 5 %
Colour Accuracy
± 0.0025 in CIE 1931 x,y
Colour Repeatability
± 0.0005 in CIE 1931 x,y
CCT Accuracy
± 2 %
CRI Accuracy @ Ra
± 1.5 %
Display
3.5” LCD 320x240 Touch Panel
Max. Files
~ 2000 files @ 2GB SD Card
Battery Operation Time
≤ 5 hours / fully charged
Battery
2500 mAh / rechargeable Li-ion battery
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Data Output Interface
SD Card (SD2.0, SDHC / above 1GB, up to 32GB) / USB 2.0
Data Format
Compatible Excel / JPG data format
Dimensions
144.2 x 78 x 24 mm (H x W x D)
Weight (with Battery)
250 g ± 20 g
Operating Temperature
0 … 35 °C
Storage Temperature
-10 … 40 °C
Language Selection
English / Traditional Chinese / Simplified Chinese / Japanese /
Spanish / German / French / Italian / Russian
*1: Use the input of 550 nm single-frequency and measurement the range of optical ± 40 nm.
*2: Input source must be a stable light source.
The company reserves the right to change product specifications, if it has any changes will not give any notice.
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5 Contact
If you have any questions about our range of products or measuring instruments please contact PCE
Instruments.
5.1 PCE Instruments UK
By post:
PCE Instruments UK Ltd.
Units 12/13 Southpoint Business Park
Ensign Way, Southampton
Hampshire
United Kingdom, SO31 4RF
By phone:
02380 987 035
5.2 PCE Americas
By post:
PCE Americas Inc.
711 Commerce Way
Suite 8
Jupiter
33458 FL
USA
By phone:
561 3209162
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