3nh NH310 User manual

Contents
Safety Precautions........................................................................ Back Cove
Product Description....................................................................................... 1
Cautions ......................................................................................................... 1
I. Button Description ...................................................................................... 2
II. Interface Description ................................................................................. 3
III. Battery Description and Installation ........................................................ 4
IV. NH310 Colorimeter Operating Instruction .............................................. 6
（I） Turning On ................................ ................................ ................................ ................. 6
1. Preparations Before Power On ................................ ................................ ..... 6
2. Turning On ................................ ................................ ................................ ......... 6
3. White Calibration and Black Calibration ................................ .................... 6
4. Changing Measuring Aperture ................................ ................................ ...... 8
（II） Measurement ................................ ................................ ................................ ........... 10
1. Locating and Measuring Method ................................ ................................ 10
2. Standard Measurement ................................ ................................ ................. 11
3. Sample Measurement ................................ ................................ .................... 12
（III） Save Data ................................ ................................ ................................ .................. 12
1. Auto Save ................................ ................................ ................................ ......... 12
2. Manual Save ................................ ................................ ................................ .... 13
（IV） Connect NH310 Colorimeter to the PC ................................ ............................. 13
（Ⅴ）print ................................ ................................ ................................ ............................ 14
V. System Function Description ................................................................. 15
1. Record and Standard Entering ................................ ................................ ... 15
2. Tolerance Setting................................ ................................ ............................ 17
3. Delete Records ................................ ................................ ................................ 17
4. Time Setting ................................ ................................ ................................ ..... 19
5. Display Mode ................................ ................................ ................................ ... 21
6. Language Selection ................................ ................................ ....................... 25
7. Light Source Selection ................................ ................................ ................. 25
8. SCI/SCE ................................ ................................ ................................ ............. 26
9. Average Measurement ................................ ................................ .................. 26
10. Function Setting ................................ ................................ ............................. 27
Ⅵ. Product Parameters ............................................................................... 32
1. Product Features ................................ ................................ ............................ 32
2. Product Specifications ................................ ................................ .................. 33
Appendix ...................................................................................................... 37
1. The Color of Objects ................................ ................................ ...................... 37
2. Human Eyes to Distinguish Colors ................................ ........................... 38

High-Quality Portable Colorimeter
1
Product Description
This user manual is for model NH310, NH300 and NR200 colorimeter, but all
the following descriptions are according to model NH310. You will find NH300
and NR200 technical parameters in Product Specifications.
NH310 colorimeter is researched and developed in accordance with CIE
(International Commission on Illumination) and CNS (China National
Standards). NH310 colorimeter is a high precise colorimeter with simple
user interface and stable performance. It can be powered by both Li-ion
battery and external DC power supply.
NH310 colorimiaiv󵞡󱗨󰐡M

High-Quality Portable Colorimeter
2
● Please keep the colorimeter in a cool dry place.
● Any unauthorized changes to the colorimeter are not permitted, or it will
affect the measuring accuracy, even cause irreversible damage.
I. Button Description
The following is a brief introduction of the buttons. We will give more detailed
information about its function separately in next chapters.
Figure 1 Button Function
Button Function Introduction
1. Testing
2. Menu
3. Up/Camera/Print
4. Down/Save
5. Enter
6. Back

High-Quality Portable Colorimeter
3
II. Interface Description
Figure 2 Interface Description
Interface Description
1. Power Switch: Press the button to turn on the colorimeter. Press the
button again. The button will pop up. Then the colorimeter is turned
off.
2. DC Interface: Connect with AC adapter. It is used to connect to
external power source. The specification of external power source is
5V=2A.
3. USB Interface / RS-232 Interface: This interface is a common
interface. The instrument automatically judges the connection status.
USB interface is used to transfer data to PC. Its baud rate is
115200bps. RS-232 interface is used to connect to the printer; its
baud rate is 19200bps.
Note: Wh en connecting to external power source, please press

High-Quality Portable Colorimeter
4
the power switch to start the instrument.
III. Battery Description and Installation
Please use original Li-ion battery. Do not use other batteries, or it will cause
irreversible damage.
Please take out the battery to prevent the colorimeter from the damage of
battery leakage if you don’t use it for a long time.
When using external power source or connecting USB interface to PC, if you
press the power switch , it will charge the Li-ion battery. If you don’t want to
charge the battery, please take out the battery.
When charging the battery, dynamic battery icon will display on the top right
corner of “Standard Measurement” and “Sample Measurement” interfaces. In
figure 3, the charging icon displays in “Standard Measurement” interface; if no
charging, the dynamic icon will not appear.
Figure 3 Charging Icon

High-Quality Portable Colorimeter
5
Figure 4 Battery Installation
Installing Battery
When installing battery, be sure the power switch is popped out (The power
source of colorimeter is cut off). Then remove the battery cover.
Insert the Li-ion battery into battery compartment and push it gently in right
direction.
Put the battery cover on Li-ion battery, and then push it up.
Battery Specification: Li-ion 3.7V==0.5A.

High-Quality Portable Colorimeter
6
IV. NH310 Colorimeter Operating Instruction
（I） Turning On
1. Preparations Before Power On
a) Check whether there is battery powered or external power supply.
b) Make sure the white calibration cover is connected to the instrument
and well installed. If it is loose or the white calibration cover isn’t will
installed, you must put the cover on and be sure it is connected to the
instrument tightly.
2. Turning On
Press the power switch on the back side of the instrument, the LCD
screen will display 3nh logo. After a few seconds, it will enter Standard
Measurement interface automatically, and the default display is
L*a*b*C*H.
3. White Calibration and Black Calibration
a) Auto White Calibration and Black Calibration (Recommend)
NH310 colorimeter adopts humanity design and it is the most
convenient colorimeter at present. It will perform white calibration and
black calibration automatically during the startup. When the display
enters measurement interface, the instrument has completed white
calibration and black calibration automatically. Then you can take out
the white calibration cover to perform measurement.
If the white calibration cover is loose or not installed, NH310
colorimeter will enter an interface “White Calibration Fail”, as shown in
Figure 5. It will display two options “Restart White Calibration” and
“Skip White Calibration”.

High-Quality Portable Colorimeter
7
Figure 5 White Calibration Fail
Select option 1, you should replace the white calibration cover. After
confirmation, the instrument will re-start white calibration automatically.
Select option 2, the instrument will skip white calibration and enter
operating interface directly. At the moment, the instrument will adopt
the last white and back calibration data. We do not recommend
you to choose this option, because it may make the measured
data not accurate enough .
b) Manual White Calibration and Black Calibration
After turning on NH310 colorimeter, press “Menu” to enter the main
menu, as shown in Figure 6. Select “Calibrate” to enter White and
Black Calibration interface, as shown in Figure 7.
Be sure the white calibration cover is well installed. Selecting “White
Calibration” and press “Enter” button, the instrument will prompt you to
place the white calibration plate. Then press “Enter” or “Testing” key to
start white calibration.
Be sure the white calibration cover is removed. Select “Black
Calibration” and press “Enter”. The instrument will prompt you to direct
the measuring aperture to the air. Press “Enter” again or press “Testing”
key to start black calibration.
Note: When starting black calibration, direct the measuring port to
the air. Be sure the black calibration is performing in a dark , no
bright light source environment. Keep the measuring port more
than 3m away from any refl ective items (hands, desks, walls etc.).

High-Quality Portable Colorimeter
8
By then, manual white calibration and black calibration are completed.
Figure 6 Main Menu
Figure 7 Manual Calibration
Suggestion: Manual white calibration and black calibration are
only needed under the condit ion that the instrument has been
used for a lo ng time and the measured data are not accurate.
4. Changing Measuring Aperture
Note: After changing the measuring aperture, you have to enter
the “Settings –Aperture Setting ” to select the corresponding
aperture . Or it may lead to the inaccurate measured data.
NH310 colorimeter can be configured with three measuring apertures:
Φ8mm measuring aperture, Φ4mm measuring aperture and extended
Φ8mm measuring aperture (optional). The users can change it for
different needs.

High-Quality Portable Colorimeter
9
a) Removing Measuring Aperture
As shown in Figure8 and Figure 9, turn the measuring aperture counter
clockwise 20 degrees, and then remove the aperture downward.
Figure 8 Counter Clockwise 20 Degrees Figure 9 Remove the
Aperture Downward
b) Installing Measuring Aperture
As shown in Figure 10 and Figure 11, align the measuring aperture with
mounting hole, and then turn it clockwise about 20 degrees.
Figure 10 Align the Measuring Aperture Figure 11 Turn the Measuring
With Mounting Hole Aperture Clockwise About 20 Degrees
c) Installing Extended Measuring Aperture

High-Quality Portable Colorimeter
10
As shown in figure 12 and figure 13, align the extended measuring
aperture with mounting hole, and then turn it clockwise about 20
degrees. After the rotation, the arrow on the measuring aperture should
be aligned with the red dot on the colorimeter, as shown in figure 12.
Figure 12 Align the Extend Measuring Figure 13 Turn the Extended
Aperture With Mounting Hole Measuring Aperture Clockwise
About 20 Degrees
（II） Measurement
1. Locating and Measuring Method
There are two locating methods:
a) Camera Locating
Enter “Standard Measurement” or “Sample Measurement” interface,
align NH310 measuring port with the test sample and cling to it. If you
need precise locating, please press the “Up/Camera/Print” button, then,
camera locating is starting. At the same time, the screen will display the
matching status of the measuring aperture and the test sample. You
can locate it accurately through moving the measuring port according
to the display.
After aligning the measuring aperture, press the “Testing” key, the
instrument will exit camera interface and finish sample testing in approx.
1 sec. After completing the measurement, the interface will display
color parameters of the measured sample.
b) Facula Locating

High-Quality Portable Colorimeter
11
Enter “Standard Measurement” or “Sample Measurement” interface,
press the “Testing” key and hold it. The facula will appear at the
moment. You can observe the matching status between the facula and
the measured sample. At the same time, hold the measuring aperture
close to the measured sample and adjust it. Then the alignment is
achieved.
After the locating, release “Testing” button. The instrument will finish
sample testing in approx. 1 sec and display color parameters of the
measured sample.
2. Standard Measurement
There are two conditions about standard measurement. One is
performing standard measurement after power on; another is after
completing sample measurement or other operations, press “Back”
button continuously to enter standard measurement.
a) Standard Measurement after Power On
After power on, the colorimeter will display “Standard Measurement”,
as shown in Figure 14. Then, align measuring aperture to the standard,
press “Testing” key, the screen will display color parameters of this
standard. Press “Enter” button, the instrument will enter “Sample
Measurement” interface.
Figure 14 Standard Measurement Interface
b) Standard Measurement after Completing Sample

High-Quality Portable Colorimeter
12
Measurement or Other Operations
After completing sample measurement or other operations, the
instrument may display an interface. At this moment, press “Back”
button repeatedly until the interface back to “Standard Measurement”
interface, as shown in Figure 14. Then, perform standard measurement
according to step a).
3. Sample Measurement
After completing standard measurement, press “Enter” button, the
instrument will enter “Sample Measurement” interface automatically, as
shown in Figure 15. Align the measuring aperture to the test sample to
perform sample measurement.
Figure 15 Sample Measurement Interface
Note: During the measure ment (Approx. 1 sec ), all buttons are
ineffective.
（III） Save Data
There are two methods to save data.
1. Auto Save
Press “MENU” button to enter the main menu, as shown in Figure 6.
Select “Settings” to enter an interface shown in Figure 16. Select “Auto
Save” to enter status setting interface, as shown in Figure 17. Select

High-Quality Portable Colorimeter
13
“On” and press “Enter” button to save the setting. After completing this
setting, the measurement data will be saved automatically.
Figure 16 Settings Interface
Figure 17 Auto Save
2. Manual Save
In Figure 17, select “Off”, then the data will not be saved automatically.
If you want to save data when measuring, please press “Down/Save”
button after each measurement.
（IV） Connect NH310 Colorimeter to the PC
Press “MENU” button to enter the main menu, as shown in Figure 6.
Then, select “Comm” to enter an interface shown in Figure 18. Follow
the instruction information mentioned in the interface to connect NH310
colorimeter to the PC with USB cable. When the communication is
successful, the instrument will enter “Communicating…” interface, as

High-Quality Portable Colorimeter
14
shown in Figure 19.
Figure 18 USB Communication
Figure 19 “Communicating” Interface
（Ⅴ）Print
Only when the colorimeter is in “Standard Measurement”, “Sample
Measurement” or “Record” interfaces, you can print data through the
printer.
Connect colorimeter to the printer. When the colorimeter is in one of the
above interfaces, press and hold (about 5 second) “Up/Camera/Print”
button to start the printer.

High-Quality Portable Colorimeter
15
V. System Function Description
Except “Standard Measurement” and “Sample Measurement” interfaces, you
should enter other function interfaces through the main menu. Main menu is
shown in Figure 20.
Figure 20 Main Menu Interface
1. Record and Standard Entering
a) Record
Select “Record” in main menu to enter “Standard Record”, as shown in
Figure 21. The figure shows the

High-Quality Portable Colorimeter
16
Figure 21 Standard Record
Note: “↖Delete﹡” means press Back key “↖” and hold it for
3 seconds, then the record will be deleted.
Figure 22 Sample Parameters under the T002 Standard
b) Standard Entering
In some cases, it’s needed to measure color difference under a saved
standard. Then, you can select “Record” in main menu to enter
standard sample records interface. You can search the needed
standard data through “Up” and “Down”. After finding it, press “Menu”
button, and then the standard record is entered to the measurement
interface, press “Enter”, you can perform sample measurement under
this standard.
c) Sample Record Entered to a Standard
In some cases, it’s needed to use a stored sample as a standard. Then,
you can select “Record” to enter sample records interface, as shown in

High-Quality Portable Colorimeter
17
Figure 22. You can search the needed sample data through “Up” and
“Down”. After finding it, press “Menu” button, and then the sample
record is entered to the measurement interface as a standard, press
“Enter”, you can perform the color measurement under this standard.
2. Tolerance Setting
Select “Tolerance” in main menu to enter tolerance setting interface, as
shown in Figure 23. You can add or subtract the number in which the
cursor is positioned through “Up” and “Down” button. After setting the
number to the needed one, press “Enter” button, the cursor will jump to
the last number. When the cursor is in the last number, press “Enter”
button to save the settings and return to the main menu.
If you don’t want to set or modify the tolerance, you can press “Back”
button to return to the main menu.
Figure 23 Tolerance Setting
3. Delete Records
Select “Delete” in main menu to enter the interface shown in Figure 25.
There are two options: “Delete All Samples” and “Delete All Records”.

High-Quality Portable Colorimeter
18
Figure 24 Delete Records
a) Delete All Samples
When select “Delete All Samples”, it will delete all samples in the
instrument and save the standard records. Then, the instrument will
display a warning interface, as shown in Figure 26. Press “Enter”, all
sample data will be deleted, but the standard records are still retained.
b) Delete All Records
When select “All Records Delete”, all records in the instrument will be
deleted, including all standard records and all sample records. Then,
the instrument will display a warning interface, as shown in Figure 27.
Press “Enter”
dtr