Error

Symptom

Item to Check

Corrective Action

Page to

 

 

No.

Refer

 

 

 

 

 

 

 

6

Measure-

Does data exist?

This appears when there is no data

-

 

 

 

ment value

 

in measurement value, stored data,

 

 

 

 

appears as

 

calibration value and target color.

 

 

 

 

“------“.

Doesn’t color space

This appears when color tempera-

34

 

 

 

 

become color tempera-

ture cannot be converted for display.

 

 

 

 

 

ture?

Available display range is as follows:

 

 

 

 

 

 

2300≦T≦20000(K) ∆uv＜0.1

 

 

 

 

 

Doesn’t measurement

This appears when luminance value

-

 

 

 

 

value become larger by

exceeds the available display area in

 

 

 

 

 

user calibration?

this instrument.

 

 

 

 

 

Do you set target color

This appears in color difference dis-

78

 

 

 

 

for color difference

play when target color is not set.

 

 

 

 

 

measurement?

 

 

 

7

Measurement

Is object to measure

Keep object to measure stable.

-

 

 

 

values vary.

stable?

 

 

 

 

 

 

 

 

 

 

 

 

 

Isn't object to measure

Repeatability of x, y worsens if ob-

4

 

 

 

 

of low luminance?

ject of low luminance is measured.

28

 

 

 

 

 

It becomes worse especially when

 

 

 

 

 

 

measurement angle is 0.2˚ or 0.1˚.

 

 

 

 

 

 

Also it becomes worse especially

 

 

 

 

 

 

when measurement time is FAST

 

 

 

 

 

 

or Super-FAST. Measure in slower

 

 

 

 

 

 

measurement time.

 

 

 

 

 

Is measurement sync

Set appropriate measurement sync

30

 

 

 

 

frequency appropriate

frequency for proper measurement.

 

 

 

 

 

when measuring dis-

 

 

 

 

 

 

play?

 

 

 

 

 

 

Haven't ambient tem-

Conduct measurement under envi-

3

 

 

 

 

perature and humidity

ronment free from such fluctuation.

 

 

 

 

 

rapidly changed?

 

 

 

8

Strange

Is objective lens clean?

Wipe off with dry and soft cloth or lens

106

 

 

 

measurement

 

cleaning paper.

 

 

 

 

value ap-

 

 

 

 

 

 

pears.

Has user calibration

Redo user calibration.

64

 

 

 

 

been performed cor-

 

 

 

 

 

 

rectly?

 

 

 

 

 

 

Haven't you put close-

Select lens type setting correspond-

62

 

 

 

 

up lens on?

ing to applied close-up lens.

 

 

 

 

 

 

 

 

 

 

 

 

Haven't you put ND

Select lens type setting correspond-

40

 

 

 

 

filter on?

ing to applied ND filter.

 

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

114