PCE Instruments PCE-CRM 40 Users guide

PCE-CRM 40 Chroma Meter

PCE Americas Inc.
711 Commerce Way
Suite 8
Jupiter
FL-33458
USA
From outside US: +1
Tel: [phone]
Fax: [phone]
[e-mail]

www.pce-instruments.com/english

www.pce-instruments.com

PCE Instruments UK Ltd.

Southpoint Business Park

Hampshire / Southampton

United Kingdom, SO31 4RF

[e-mail]

PCE-CRM 40

Unit 11

Ensign way

From outside UK: +44

Tel: [phone]

Fax: [phone]

Chroma Meter

User Manual

PCE-CRM 40 Chroma Meter

CONTENT

Ⅰ Product Overview ....................................................................................................................... 1

1.1 Front Side ............................................................................................................................ 1

1.2 Reverse Side ........................................................................................................................ 2

Ⅱ Basic Operation ........................................................................................................................... 3

2.1 Starting Page ....................................................................................................................... 3

2.2 Home Page .......................................................................................................................... 4

2.3 System Settings ................................................................................................................... 5

2.3.1 Time Setting ............................................................................................................. 5

2.3.2 Power Management .................................................................................................. 6

2.3.3 Language .................................................................................................................. 7

2.3.4 Version ..................................................................................................................... 7

2.4 Test Setup ............................................................................................................................ 8

2.4.1 Developer Tools ....................................................................................................... 8

2.4.2 Measurement unit selection ...................................................................................... 9

2.4.3 Integral Time….…………………………………………………………………..10

2.4.4 Standard Illumination settings…………………………………………………….10

2.5 Parameter description ........................................................................................................ 10

Ⅲ Measurement ............................................................................................................................. 12

3.1 Measuring Operation ......................................................................................................... 12

3.2 Operation during Measuring ............................................................................................. 15

3.3Color Difference Value and Chromaticity Coordinates ...................................................... 16

3.4 View Data .......................................................................................................................... 19

3.5 Maximum Measuring ........................................................................................................ 20

3.6 Batch Data Processing....................................................................................................... 21

Ⅳ Attentions and Basic Maintenance ............................................................................................ 27

4.1 Attentions in use ................................................................................................................ 27

4.2 How to clean ..................................................................................................................... 28

Ⅴ Specifications ............................................................................................................................ 29

PCE-CRM 40 Chroma Meter

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Ⅰ Product Overview

PCE-CRM 40

1.1 Front Side

1 Measuring lens
2 Display Screen
3 UP key Move up
4 MAX key Maximum value
5 OK key Confirm
6 DOWN key Move down
7 MENU key Moves to the main measurement screen from other

screens and submenus.
8 BACK key Moves back one level in the menu structure.
9 POWER key Power
10 USB MICRO Interface Connected with power adapter to realize the charging,

connected with computer to realize data

transmission.
11 SD slot Install SD card into this slot.

PCE-CRM 40 Chroma Meter

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1.2 Reverse Side

12 Tripod jack
13 Nameplate
14 Wrist Strap Hook
15 HOLD key Press the button，the device would pause

and save the latest data, and word
‘hold’ shows on the screen in the top
left corner;
Press the button once again, and the
device would continue working.

16 Measuring Lens Uninstall button The button is set for manufacturer

maintenance. It is strictly
prohibited to disassemble privately in
any case, avoiding causing irreversible
damage.

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Ⅱ Basic Operation

2.1 Starting Page

Press the power button for 1-2 seconds，after the beep, the device starts up and shows
the starting page.
After the starting process, the measuring page shows directly as below:

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PCE-CRM 40 Chroma Meter

Press the button ‘MENU’ to jump into home page and operate other buttons to set up the
device for measuring.

2.2 Home Page

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2.3 System Settings

Get into the system settings, the factory date has been set as Beijing Time. Power
management and language are default, users can change if necessary.

2.3.1 Time Setting

Time setting can be accurate to seconds, which has already been set in Beijing Time. No

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PCE-CRM 40 Chroma Meter

need to change if not necessary.

2.3.2 Power Management

There are functions include screen backlighting time setting, auto-shut off time setting and
backlight brightness adjustment.
LCD backlighting time is set for 30 seconds in default, and the auto-shut off is set for 30
minutes.
Backlight brightness adjustment function has 3 optional levels, corresponding to the dark,
medium and bright. It is set in first level in default.

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2.3.3 Language

Device provides two operating languages in Chinese and English. Customers can choose
according to need.

2.3.4 Version

User can view version number and identification S/N code in the page.

PCE-CRM 40 Chroma Meter

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2.4 Test Setup

2.4.1 Developer Tools

Developer tools are provided for developers only, the function is not open
during the use of device. The details are provided in 4.3.

PCE-CRM 40 Chroma Meter

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2.4.2 Measurement unit selection

Two optional units of illumination are provided, Lx and Fcd.

PCE-CRM 40 Chroma Meter

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2.4.3 Integral Time

This menu included two unit settings:
Integral Time unit setting, can choose Evh/Evm, corresponding Integral Time unit
Hour/Minute respectively.

2.4.4 Standard Illumination Settings

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PCE-CRM 40 Chroma Meter

This function sets a standard illumination value. After entering this screen, press
UP/DOWN button to firm a number within 0-9. After completing a set, cursor will
move to another position to choose. Completed five blank positions setting, press
UP/DOWN button to choose the weight of issue, or re-input a standard illumination
value.
This function is used for helping field test, especially for a known standard range, to
get a rapid and accurate detection.

2.5 Parameter description

Select the option of parameter description, press the OK to jump into menu below.

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PCE-CRM 40 Chroma Meter

The definition of photometric and colorimetric symbols are provided in the page for
operation.

Ⅲ Measurement

3.1 Measuring Operation

After the startup-setting finished, pointing the photosensitive lens at light source to be
measured directly and it starts measuring immediately.
The data shows on the display screen.

Measuring screen shows all real-time measured values, can be easily seen the measured
Light Source parameter values.
There are 6 measured screens, press UP/DOWN to switch screen, all data are real-time
measuring values.
The measuring order is switched as followed:

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PCE-CRM 40 Chroma Meter

Real-time illumination curve

Red line is a standard illumination
value. It can be set according to 2.3.

Real-time illumination

Real-time integration illumination

Red line is a standard illumination
value. It can be set according to 2.3.

Real-time illumination

Standard illumination

Illumination Difference value

Illumination ratio

Illumination curve and Parameters screen 1:

Illumination curve and Parameters screen 2:

PCE-CRM 40 Chroma Meter

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CIE1931 Real-time color
coordinate and color range

CIE1976 Real-time color coordinate
and color range

(x,y)CIE1931 chroma coordinate
Y: Illumination value
Tc: Color temperature value

(u’,v’)CIE1976 chroma coordinate
Tc: Color temperature value

CIE1931：.

CIE1976：

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PCE-CRM 40 Chroma Meter

3.2 Operation during Measuring

Press the ‘hold’ key until the word ‘hold’ shows on the upper right corner of the screen,
then the measuring process would end, the test data would be stored in SD card
automatically.

Press the ‘hold’ key again and measuring process starts again, as below:

When a device complete a set of data testing, user can press ‘MENU’ key to jump into

homepage and perform other operations. If press ‘MENU’ again, the page would

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PCE-CRM 40 Chroma Meter

return to measuring page.

3.3Color
Coordinates

Difference Value and Chromaticity

When we press the ‘ok’ key, it jumps into testing menu. User can check for color
difference value, chromaticity diagram and RGB value.

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PCE-CRM 40 Chroma Meter

User can look up the latest one data of color difference value in the color difference
value option, including ∆(XYZ)，∆(Evxy)，∆(Evuv)，∆Ev ∆Tc ∆uv

Chromaticity diagram is consisted with two coordinate graphs, CIE1931 and CIE1976

CIE1931

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CIE1976

RGB Value

Select RGB test to view the RGB graph.

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3.4 View Data

Enter the homepage, select the ‘SD store’, user can view the latest nine measurement data.

Select and press ‘OK’ key to get in the list of historical data.

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PCE-CRM 40 Chroma Meter

Data list is sorted by time, and device only stores latest nine dada. New data would cover
previous data automatically.

User can view the history by selecting time and pressing ‘OK’ key.

3.5 Maximum Measuring

Press the ‘MAX’ key, keep the device still and don’t move, it starts measuring
automatically.

Every data will be stored into SD card under “MAX” measuring condition.
Measuring screen is showed as followed:

PCE-CRM 40 Chroma Meter

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Standard illumination，500Lux

Real-time illumination, color temperature

Real-time Maximum. Press MAX till now, the
new highest value will cover the old and show

Real-time Minimum

Illumination average

Appearing time of Maximum

Appearing time of Minimum

Under the “MAX” condition, Press the ‘HOLD’ key, the device stop measuring and
keep the screen still, then give the tips about the appearing time of Maximum and
Minimum value. See as followed:

Press ‘MAX’ one more time to cancel the maximum measuring mode and return to
normal measuring page.

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PCE-CRM 40 Chroma Meter

3.6 Batch Data Processing

Either by connecting the computer with data line or taking out the SD card in device, user
can do data batch processing. Txt file would be saved by device, and if imported into PC,
the file would show as excel format, which is benefit for data management.

Import the txt file in SD card into PC software:

Select file and click import, click the data of certain point of time user can view the
number of measuring times.
TIP: software run in win7 or more advanced operating system.

PCE-CRM 40 Chroma Meter

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Select file and click export button to get the excel file of data from PC.

PCE-CRM 40 Chroma Meter

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PCE-CRM 40 Chroma Meter

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PCE-CRM 40 Chroma Meter

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It is possible to modify the contents of the output file
according to the user needs.
Find the template.xls file, change the content you want and
save.

PCE-CRM 40 Chroma Meter

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Ⅳ Attentions and Basic Maintenance

4.1 Attentions in use

 It is a high-precision instrument, must carried by hand and used carefully.
 Please read this instruction thoroughly before first time use.
 Please keep it power off before you remove or install the measuring lens.

 Please protect the measuring lens carefully and keep the lens clean. Don’t wipe it and

put the cover on the lens after use.

 Don’t press the screen hard and keep it out of any external impact or heavy pressure.

 Please use the device in the temperature between —10℃ to 40℃ , in the humidity

less than 85% (35℃).

 Notice that it is normal the device would become warm if you put it under the direct

sunlight or it is surrounded by relative hot instrument. Please protect the device
carefully under those circumstance.

 The apex of the sphere of the measuring lens is used as a lighting related plane.
 It is possible that strong electromagnetic field would have a strong effect on internal

microprocessor of instrument. Please turn off the power of device and AC adapter, then
power on and restart the device,

 Don’t use it in the area with altitude higher than 2000 meters.

 If you want to use the AC adaptor, please make sure that you use the power supply thar

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PCE-CRM 40 Chroma Meter

we have specified.

 The instrument is set for grade Ⅱ pollution products, please do not use in the area

with high concentration of metal particle dust.

 Please put the device into the protection package after use. Keep it out of too hot, too

cold and vibration.

4.2 How to clean

 Please use dry cloth or silicon cloth to wipe the dust on the lens. Don’t use solvents

such as diluent and benzene.

 If there are a lot of dust on the lens, please use soft dry cloth to wipe out. If the dust

cannot be wipe out or the lens has been scratched, please contact the after-sale service
center nearby immediately.

 If the device is out of order, don’t disassemble it privately or try to fix it by yourself.

Please contact the after-sale service personnel immediately.

How to place

 Don’t place the device in the environment with high temperature and humidity.

 Don’t place the device in the rear glass or in the trunk of the car. The temperature will

rise so that the instrument can be deformed or damaged.

 If you won’t use the device in 2 weeks or longer period of time, please turn off the

power thoroughly

 Don’t wrap the device with cable around or the connector and the root of the cable may

be under excessive force, thereby causing the disconnection.

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Model

PCE-CRM40

Range

Illumination：0.1-200000lx，0.01-20000 fcd
Color Temperature：1500-25000K
Range：(5lx，>0.5fcd)automatically switch in four gears

Accuracy

Ev(linear)：±2% of reading
xy：±0.003 （500lx，Standard light source A）

Repeatability

Ev：±2%+1 decimal digits（2σ ）
xy：±0.0005 （500lx，Standard light source A）

Correlative-spectral
sensitivity

Consistent with CIE standard observer curve

Test Channel

Optional multiple channels, adapt to different lighting
sources and applications; optional self-calibration
channel.

Cosine correction（f2）

Ev: <3%

Parameters

Three stimulus values：XYZ
Chroma value：Evxy；Evuv；Ev；
Illumination: Ev, integral illumination; Illumination curve
and multi-points setting, standard illumination setting;
Maximum, Minimum, Average
Correlative color temperature：Tc；
Color temperature curve and multi-points setting;
Standard Color temperature setting;
Maximum, Minimum, Average
Chromatic aberration：∆(XYZ)，∆(Evxy)，∆(Evuv)，∆Ev∆Tc∆uv
Chromaticity coordinates：ICE1931(x,y),ICE1976(u,v)；
Main wavelength：入 d
Color purity：Pe
Luminous flux：Φ
RGB Value
MAX function

Other Functions

Multiple channel、Multiple standard sample、Large capacity

data storage（more than 1000 times）；User-calibration;
Automatic shutdown；Auto turn off backlight

Display Interface

One screen display：illumination Ev，CIE1931(x,y),CIE1976(u，
v)，Color temperature Tc，Main wavelength 入 d，Chroma purity
Pe ，Luminous flux Φ
Multi-screen Real-time measuring show: Real-time

Ⅴ Specifications

PCE-CRM 40 Chroma Meter

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illumination, color temperature curve, CIE1931,CIE1976
real-time show

Language

Simplified Chinese， English

Interface

Micro USB 2.0

Power

Micro USB data line；2200mAh large capacity lithium battery

Operating Temperature
and Humidity Range

-10-40°C，Correlative humidity <85%(35°C)，No condensation

Storage temperature
and humidity range

-10-40°C，Correlative humidity <85%(35°C)，No condensation
Size

210*80*35mm

Weight

235g

Standard Accessories

Dust Cover，Power adapter，USB data line，data management
software disc，Host Rope，anti-lost lens cover rope，device
leather bag，baffle。