ALTANA Haze-Gloss User Manual [en, de, fr, it]

Additives & Instruments

A member of

Measure what you see.

haze-gloss

Manual Betriebsanleitung

Modo d’emploi

Istruzioni d’uso

Gardner

haze-gloss

Gardener

Version: 2.6
Copyright 1990

haze-gloss
Reectometer

Cat. No. AG-4601

haze-gloss
Reektometer

Best.-Nr. AG-4601

haze-gloss
Brillancemètre

o

N

Ref. AG-4601

haze-gloss

228 012 718 EDFI 0811

Riettometro

No di cat. AG-4601

Gardner

haze-gloss

Gardener

Version: 2.6
Copyright 1990

haze-gloss
Reectometer

Cat.No. AG-4601

Table of Contents

 1. SafetyInformation
 2.SystemDescription
 3.Start-Up
 4.Operation
 5.Calibration
 6.SettingtheInstrumentParameters
  SETUPMenu
 7.PracticalMeasuringHints
 8.MeasurementSeriesandStatistic
 9.InternationalSpecications
10.InterfaceDescription
11.TechnicalData
12.SourcesofErrors
13.OrderingGuide

TechnicalDataareSubjecttoAlterations.

Power Switch
Line Voltage Selector Switch
Fuses

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Connections for:

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Version: 2.6
Copyright 1990

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RS 232
Footswitch
Power Cord

Control Panel
LCD Display

Sample Support Table

Hand Lever to Lower
the Sample Support Table

Footswitch for Motorized
Sample Support Table

!

1. Safety Information

Before switching on the unit, make sure
the voltage setting on the unit matches
the voltage of your power outlet. The
unit must be plugged into a grounded
outlet. Do not eliminate the ground
protection by using an ungrounded
extension cord.

Warning!

Any break in the ground conductor
either inside or outside the unit, or any
loosening of the ground connection,
may make the unit hazardous to
operate. Never break the ground
connection intentionally!

Attention!

For USA use only: Detachable Power
Supply Cord - Listed, type SVT or SJT,
18 AWG. Terminates in parallel blade
grounding type plug 125 V, 15 A
configuration.

any power source. Any adjustments,
maintenance or repairs that must
unavoidably be performed with the
power on and the unit open should be
left to qualified personnel familiar with
the possible hazards. Capacitors inside
the unit may still carry a charge even
after the unit has been disconnected
from the power source.
Be sure that all replacement fuses are
of the specified type and size. Never
resort to using reconditioned fuses or
short-circuiting.

Defects and Extreme Usage

If safe operation can no longer be
presumed, shut down the unit and
secure it against unintended operation.
The unit must be presumed unsafe to
operate:

• if it shows visible damage

Adjustments, Replacement of Parts,
Maintenance and Repairs:

Removing covers or components,
except where this can be done without
tools, may expose live parts.
Connection terminals may also be live.
Before replacing parts or performing
any adjustment, maintenance or repair
for which the unit must be opened,
make sure the unit is disconnected from

• if it no longer operates

• if it has been stored for long
periods under adverse conditions

• after harsh treatment during
shipping

2. System Description

The haze-gloss reectometer is a
stationary instrument designed to
measure specular gloss and reection
haze on paint coatings, plastics,
binders, pigments, and metal surfaces
(mirror reection).

The sample surface is illuminated at a
dened angle and the reected light is
measured photoelectrically.
Selection of the appropriate angle of
illumination (geometry) is dependent on
the specic gloss level of the sample
surface: matt, medium, or high gloss.
(For the application of these measuring
ranges, see Chapter 6, Practical
Measuring Hints.)
Advanced electronic engineering in the
development and production of
haze-gloss provides a performance
level, ease of operation and high
accuracy at a level not previously
achieved.

• Three geometries: 20°, 60° and 85°
Mirror reection on metal surfaces,
Reection haze

motorized and controlled using a
footswitch

• Illuminated target for accurate
sample positioning

• Easy-to-read control panel and
microprocessor controlled operation

• High accuracy and long-term stability
due to reference beam principle

• No warm-up time, immediate opera­ tion, long-term calibration (≥ every
two months)

• Internal statistic mode and storage

• Interface for data transfer and
control via PC

• Display can be selected to be
English, German, French, Spanish, or
Italian

The haze-gloss measuring unit con­forms with the standards ISO 2813,

ASTM D 523 and DIN 67 530.

• Sample pressing device allows for a
rapid change of samples,
sample support table optionally

3. Start-Up

Important Notes

Please read this information before you
operate the instrument:

The haze-gloss system does not
require a special room for measuring.
As with every electronic equipment,
however, it is important to observe the
usual operating conditions.

Please avoid:

• excessive oscillations and vibrations

• extreme ambient temperatures

• temperature shocks

• air humidity ≥ 85%, splash water

• caustic and explosive chemicals,
aggressive vapors, and gases

• extreme electromagnetic fields

The instrument housing is resistent to a
number of solvents. However, resis­tance to all chemicals can not be
ensured. For this reason, use a soft
moist cloth for cleaning. In the case of
severe contamination, some alcohol or
suds may also be used.
If your haze-gloss should experience a
malfunction, we ask that you do not
attempt to repair the unit yourself. Our
Customer Service will be glad to help
you as quickly as possible.

• extreme electrostatic discharge

• penetration of foreign matter in the
measuring aperture

Installation

Always disconnect the instrument from

Power Switch

Jack for Power Cord

Voltage Selector
Fuses

the mains supply before you plug-in or
unplug the various connectors!

Unpack the instrument and check for
any possibility of shipping damage
(visual inspection). Before initial
operation, check if the delivery is

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complete (for the components see
Chapter 12, Ordering Guide ).

Install the unit at its place of destination.

Check the position of the voltage
selector switch on the back panel and, if

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4601

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CAT.-NR.

9017571

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RS 232 Interface

Footswitch

necessary, set the switch to your power
requirements as follows: Remove the
plastic cover next to the mains cord
jack. Then plug-in the plastic cover so
that the triangular marking on the power
switch housing and the required voltage
range indication coincide.

With the unit being still disconnected,
plug the power cord into the shockproof
socket. In the case of motorized units:
connect the footswitch.

If required, plug the PC connection
cable into the RS 232 jack.

8

SELF-DIAGNOSTIC

STATUS

Gardner

Version: 2.
Copyright 1990

Switch on the unit using the power
switch on the rear panel.

Logotype and copyright message
appear in the display.

Lamp
Lamp
Lamp
Lower
Lower

The haze-gloss performs a self­diagnostic test.

Note

Motorized units also test the downward
movement, provided that no sample is
inserted.

20°:
60°:
85°:
4 cm:
7 cm:

ok
ok
ok
ok
ok

Haze Compens.:
Lower:
Autom. Meas.:
Target:

The status of the set parameters
appears in the display.

ok
4 cm
on
on

REFLECTOMETER

20° :
60° :
85° :
Haze:
20° Cust. spec:
60° Cust. spec:
85° Cust. spec:

ASTM

99.2

93.3

90.1
457
2000
1000
300

STATUS

Stored Values:
20° :
60° :
85° :
Haze:
20°& 60°:
60°& 85°:

n= 520
n= 82
n= 0
n= 571
n= 101
n= 0

20°

36.7

60°

73.2

The stored calibration values appear on
the display. Display of customized
calibration values requires prior
definition (see Chapter 5).

The number of stored readings appears
on the display.

After completion of self-diagnostic test
and display of status, the instrument
immediately goes to the last mode
activated before the unit was
disconnected and is now ready for
operation.

Before you start measuring, the
haze-gloss has to be calibrated (see

Chapter 5).

4. Operation

haze 20° 60° 85°

20° + 60° auto-range 60° + 85°

Select the desired geometry or the
auto-range function (see Chapter 6,
Practical Measuring Hints).

Lower the sample support table
using the hand lever, or the footswitch
in the case of a motorized table.

Insert sample, test surface facing up.

Check the sample for possible surface
defects (e.g. scratches, fingerprints).
The illuminated target marks the
sample port position (see SET UP
Menu: Target)

Release hand lever or footswitch
respectively. Now the support table
moves the sample towards the
sample port.

The measurement is started automati­cally but can also be started manually
by pressing the operate key.
(see SET UP Menu: Measure autom.)

The measured values and the corre­sponding geometry/measuring
mode appear in the display.

5. Calibration

Calibration of the haze-gloss is seldom
necessary due to state of the art
technology and a reference beam
principle. We recommend a calibration
interval of ≥ 2 months.

SET UP OPERATION

Cursor: SET UP
Change: OPERATE

Calibration is also recommended

• if the ambient temperature differs
extremely from the normal room
temperature.

• if "Please Recalibrate" appears on the
display. (The unit automatically de­ tects lamp aging by 4 %)

Continue: SET UP

Calibration Procedure

• Call SET UP Menu

set up

SET UP MENU
Haze Compens.:

on
Calibration
Measure autom:
Target:
Lower:
Decimal Point:
Escape:

on

on

4cm

on

SAMPLE

• Select Calibration

set up

operate

Note
Make sure that the glass standard is
clean and has no scratches!

Routine

• Call Calibration Routine

GLOSS CALIBRATION

Measure High-Gloss

--> OPERATE

Escape:

SAMPLE

Move down the sample support table
using the hand lever and insert black
high-gloss standard.
If your haze-gloss is equipped with a
motorized sample table you can
alternatively use the footswitch.

GLOSS CALIBRATION

20° Calibration ok

90.2

60° Calibration ok

93.3

85° Calibration ok

99.1

The calibration cycle for the single
angle geometries is now performed
automatically.

HAZE CALIBRATION

Measure Haze Tile

--> OPERATE

HAZE CALIBRATION

Haze cal. ok
457

CUSTOM SPEC. CALIB.
MIRROR MODE
20°: Val.: not defined
60°: Val.: 1000
85°: Val.: not defined

Escape:

SAMPLE

Haze Calibration

Insert white haze tile.

The haze standard must be clean and
free of scratches.

• Press the operate key

operate

Note

The value indicated on the haze
standard has been reduced by the
luminance factor (see Chapter 6, Haze
Compensation).

Calibration is completed.

• Go into the measuring
mode by pressing the

sample/
statistic

Important!

Only use standards supplied with the
instrument. These have been calibrated
against officially tested standards and
correspond to ASTM D 523 or
DIN 67 530. Should a standard be
damaged or lost, the haze-gloss has to
be recalibrated with new standards by
our service engineers as the values of
your original standards are memo-rized
in the instrument.

sample/statistic key.

Escape:

SAMPLE

Customer-specified Calibration

For mirror reflection measurements you
can calibrate the instrument using your
company's own standards and define
specific reflectometer values. All future
measurements will then be related to
these values.

• Call the SET UP Menu
and select "Change Cal.

set up

operate

Value" (2nd page of menu)

• press the operate key
to define "Custom Cal."

• Select desired geometry

CUSTOM SPEC. CALIB.
Calib. Value 20°

* * * 1 2 3 0 * * *

Change Value:
Confirm:
Escape:

SETUP
OPERATE
SAMPLE

CUSTOM SPEC. CALIB.

Measure Custom Tile
20° : 1000

--> OPERATE

Escape:

SAMPLE

Note

If you define very high standard values,
limit errors might occur during the
measurement as the numerical range is
limited to 500 gloss units. In this case,
4 stars will be displayed instead of the
reflectometer value.

• Set reflectometer value:

• Press the set up key to
change the number above

set up

operate

the arrow, cycling from

0 - 9.

• Confirm the selected
number using the
operate key. The arrow
jumps to the next number.

• Measure mirror reflection
standard.

operate

• haze-gloss calibration is
performed against your

own standard.

6. Setting the
Instrument
Parameters
SET UP Menu

SET UP OPERATION

Cursor: SET UP
Change: OPERATE

Continue: SET UP

In the SET UP Menu the instrument
parameters are set and the calibration
routine is called.

• Call the SET UP Menu.
Operating instructions

set up

set up

set up

appear on the display.

• Press the set up key
again to call the
first SET UP page

• Select the individual
functions by repeatedly
pressing the set up
key.

SET UP MENU
Haze Compens.:

on
Calibration
Measure autom:
Target:
Lower:
Decimal Point:
Escape:

on

on

4cm

on

SAMPLE

The selected function is marked by a
filled rectangle (cursor).

SET UP MENU
Country D,US,F,I,E
Mirror Mode:

on

Change Cal. Value:

Custom. Cal.:
Escape:

on
SAMPLE

• Call or change the

operate

sample/
statistic

selected function.

• Leave the SET UP Menu

Description of the Individual
Functions:

Haze Compensation

(Compensation of the luminance factor)
The light scattered diffusely by the
sample is detected by a special
aperture and can be subtracted from
the haze values. The brighter the
sample, the more important becomes
this haze effect. (e.g. with white enamel)
In the mode "Haze Compens.: off" haze
values are displayed with the indication
"nc." = not compensated.
Pigmented samples such as paints or
plastics should always be measured
with "Compensation on" since the
sample luminosity affects the haze
value.

Calibration

Call the calibration routine
(see Chapter 5)

Automatic Measurement

When raising the sample support table
a measurement is taken automatically,
thus minimizing keystrokes.

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Target

A target is automatically activated with
the downward movement of the sample
support table.

Lower

In the case of a motorized sample
support table the downward movement
can be set to 4 or 7 cm.

Decimal Point

The decimal point can be suppressed
using the "decimal point off" function.
Calculations in the statistic mode are
always performed with the exact value.

Language US, D, F, I, E

Display can be selected to be English,
German, French, Italian or Spanish.

7. Practical Measuring
Hints

20°

Mirror Mode

off: If a gloss value exceeds

approx.190 the haze-gloss
automatically goes to a lower
channel and takes a new mea­surement.

on: If only high-gloss samples

(e.g. metals) have to be mea­sured, you will save time with the
mirror mode.

Change Calibration Value

In this mode you can calibrate against
your own mirror gloss standard with a
defined reflectometer value. (See
Chapter 5, Calibration)

Customer-specified
Measurements

(Only displayed if defined)
Calculation of reflectometer values
related to a customer-specified
mirror standard.

36.7

60°

73.2

Gloss Measuring

In accordance with DIN 67 530 the
reflectometer value is related to a black
glass standard with a refraction index
of 1.567 (reflectometer value 100).
Reflectometers are differentiated by the
angle of illumination of the light source.
In accordance with DIN 67 530 and
ASTM D 523 the angles are set at 20°,
60° and 85°; each setting corresponds
to a particular application:

• Semi-gloss surfaces are measured at
an angle of 60°. Measurements
should range between 10 and 70
gloss units.

• If highly reflective surfaces are
measured using the 60° geometry
and the measured value exceeds 70
units, the measurement should be
repeated using the 20° geometry.

• Matt surfaces showing measured
values of less than 10 units (using the
60° geometry), should be measured
using the 85° geometry.

In order to obtain a better differentiation
of the measured values, we recom­mend the 85° geometry in all cases in
which the value measured at 60° is
below 30 units. Application recommen­dations differ in the various standards.
While the ASTM D 523 standard sets
the upper limit for changing from 60° to
85° geometry at the value of 10 gloss
untis, ISO 2813 sets this limit at 30
units. These limits should be regarded
as recommendations.

surfaces, mirrors). In this mode the
gloss values range up to:

2000 gloss units at 20°
1000 gloss untis at 60°

160 gloss units at 85°
(calibration performed at the manufac­turer).

As mirror gloss measurements are
often related to customers' standards,
haze-gloss offers the possibility to
calibrate against customer-specified
standards (see Chapter 5, Calibration).

AUTO-RANGE

60°

20.7

85°

47.2

Note

• In the auto-range mode the 60/85°
dual angle geometry is used for
reflectometer values below 30; the
60° single angle geometry is used for
reflectometer values between 30 and
70, and the 20°/60° dual angle geo­ metry is used for reflectometer values
exceeding 70. (Reflectometer values
always relate to 60°)

Mirror Reflection Measurements

The haze-gloss offers an extended
measuring range, which allows for the
measurement of samples with great
reflecting power (polished metal

• It is not useful to take measurements
on samples showing contaminations,
scratches or other damages, unless
you want to evaluate the degree of
such defects by means of gloss
measurement.

• Best results can only be obtained
from plane surfaces.

• Since gloss properties are usually not
constant over the complete sample
surface, the reflectometer value
should be determined on several
different locations of the sample and
the readings should be averaged.

• If a sample surface is structured, i.e.
the gloss porperties are dependent
on the measuring direction, it is
recommended to report the structure
characteristics and the angle of
incidence or to calculate the mean
value from readings taken in varying
directions.

• Samples that have to be measured
several times during a test (e.g.
weathering samples) should be
marked correspondingly in order to
make sure that comparison
measurements or check tests will be
performed on the same location.

Haze
nc.

13.7

20°

86.5

Haze Measuring

• press haze key

haze

If haze compensation: off was
selected in the Set Up Menu, "nc."
(= not compensated) appears in the
upper left corner of the display.

In many cases, the reflectometer value
does not suffice to describe the optical
properties of a surface. In addition to
color and gloss, reflection haze is of
great importance.

Haze Measurement provides:

• better differentiation of optical
properties for high gloss surfaces

• an indirect method to evaluate and
characterize paint and raw material
properties, such as

- degree of dispersion

- flocculation behavior

- wetting properties

- scratch resistance

- weathering tests

- optimization of paint formulae

• an indirect method to evaluate the
manufacturing process of the surface.

0

60

0

20

c

0

20

The Equation

The equation for reflection haze is:
H = K x lg (linear haze value/20 + 1).

haze

a

0

60

b

In order to achieve a logarithmical haze
value of 1000 at a linear value of 100
haze units, the constant k = 1285.1 is
used.

0

85

a

For the measurement of reflection haze,
2 additional apertures c (width = 1.8°)
are positioned on either side of the 20°
specular gloss aperture. This allows for
the measurement of the diffusely
scattered light adjacent to the 20°
specular angle.

85

Note

The reflection haze value is displayed
logarithmically

• in order to correspond as close as
possible with the visual perception of
reflection haze by the human eye.

• in order to achieve a higher sensitivity
in the case of low haze values.
(The lower the haze value, the better
the surface quality.)

0

∑

8. Measurement Series
and Statistic

20°

36.7

n=123
m=36.5
s= 1.3

20° m= 36.5
min= 32.8
max= 40.6

n= 123
s= 1.3
Vr= 3.6

60°

m=73.3

73.4

The statistic mode can be selected in
every geometry. The AUTO-RANGE
function can be used in the sample
mode only.

• sample/statistic key:
Changing from individual

sample/
statistic

Key to the symbols:
n = number of measurements
m = mean value
s = standard deviation

measurements to mea­ surement series.

s= 0.9

60° m= 73.3
min= 70.8
max= 75.7

Display of all statistical results

m mean value
n number of measurements
min minimum value
max maximum value
s standard deviation

n

i=1

(xi-x)

-

1

s=

/

n-1

v

coefficient of variance

r

vr =100 S/m (%)

s= 0.9
Vr= 1.2

2

S

Note

Measurement values in the statistic
mode are stored and are protected
when changing the geometry or using
the sample mode.
haze-gloss can store a series of up to
600 measurements per geometry.
These data can be transferred to a PC
via RS 232 interface.
If the geometry is changed in the
statistic mode, the values of the last
measured series are displayed and the
series can be continued if required.
During a running measuring series in
the statistic mode the calibration must
not be changed (compensation, mirror
gloss, customer-specified) since this
would falsify the statistical results.

DELETE
Delete last value

-->DELETE

Delete statistics

-->RESULT

Escape:

SAMPLE

• delete key

delete

The counting variable n is reduced
by 1. The last reading can only be
deleted if no other function has been
called after the last measurement.

results

deletes last reading.

• results key
deletes the complete
measurement series of
the set geometry.

9. International
Specifications

DIN 67 530
Reflectometer as a means for gloss
assessment of plane surfaces of paint
coatings and plastics

ISO 2813
Paints and varnishes ­Measurement of specular gloss of
nonmetallic paint films at 20°, 60° and
85°

ANSI/ASTM D 523
Standard Test Method for Specular
Gloss

ASTM D 2457
Standard Test Method for Specular
Gloss of Plastic Films

BS 3900 (Part D2 - D5)
British Standard Methods of Test
for Paints
Gloss (Specular Reflection Value)

JIS Z 8741
Method of Measurement for Specular
Glossiness

10. Interface Description

The haze-gloss is equipped with a
serial interface (RS 232 C), which
allows for data handling and control of
the unit with a PC.
A 9-pin SUB-D connector is mounted
on the measuring unit for transfer
purposes.

haze-gloss PC

1

5

Transfer Rate and Format

The serial asynchronous transfer of
data is specified in the measuring unit
and is performed according to the
following format:

2400 baud, 8 data bits, no parity,
1 stop bit

Control Commands
'O' (ASCII) starts the on-line operation

(ONLINE appears on the display)

- the haze-gloss keyboard is blocked

- automatic measurement is started
using the operating switch

3 TxD -------- RxD 3

6

2 RxD -------- TxD 2
7 RTS -------- CTS 5
8 CTS -------- RTS 4

9

5 ------ GND ------ 7

SET UP Status of haze-gloss is
transferred to the computer:
(1 byte each INTEGER)

- Current Mode:
0 = sample mode
1 = statistic mode

- Selected Geometry:
0 = haze
1 = 20°
2 = 60°
3 = 85°
5 = 20° & 60°
6 = auto-range
7 = 60° & 85°

- Current Downward Movement:
0 = lower 4 cm
1 = lower 7 cm

- Target Illumination:
0 = off
1 = on

- Decimal Point:
0 = display without decimal point
1 = display with decimal point

- Mirror Mode:
0 = off
1 = on

- Custom. Calibration:
0 = off
1 = on

- Compensation:
0 = off
1 = on

- Selected Language:
0 = German
1 = English
2 = French
3 = Italian
4 = Spanish

Operating the haze-gloss via PC
(identical with function keys)
All keys on the unit are blocked except
for the operating switch
(1 byte INTEGER)

Byte

0 haze key
1 20° key
2 60° key
3 85° key
5 20° + 60° key
6 auto-range key
7 60° + 85° key
9 sample/statistic key
10 results key
11 set up key
14 delete key
15 operate key

(or operating switch):

The readings of the last measurement
are transferred to the PC (2 readings of
2 bytes each INTEGER multipied by 10,
LSB, MSB). Using a single angle
geometry, the second value is set to
zero.

‘P‘ Switch off ONLINE-operation,
haze-gloss keys are released

‘Q‘ Transfer of statistical values of the
required geometry to the computer

Computer code (1 byte INTEGER)
for the selected geometry:

0 20° values, single angle geometry
1 60° values, single angle geometry
2 85° values, single angle geometry
3 20° values, dual angle geom. (20 & 60°)
4 60° values, dual angle geom. (20 & 60°)
5 60° values, dual angle geom. (60 & 85°)
6 85° values, dual angle geom. (60 & 85°)
7 haze values
8 20° values in haze mode

haze-gloss code/characters

4 byte index (number of values)
2 byte each INTEGER
(multiplied by 10)
reflectometer values

11. Technical Data

Measuring Geometries:
20° & haze, 60° , 85°
Illuminated Area (mm/in.):
20° & haze 60° 85°
ø 15 15 x 27 8 x 60
ø 0.6 0.6 x 1.0 0.3 x 2.4

Measuring Range:
Gloss 0 - 2000 gloss units
Haze 0 - 2500 gloss units
Range change
to mirror reection:
automatic or preselectable

Display Resolution:

0.1 unit (range: 0-100 units)
1 unit (range: > 100 units)

Accuracy**:
Gloss
Repeatability ± 0.05 units*
Reproducibility ± 0.3 units*
Absolute Accuracy ± 1 unit
Long-term Stability ± 0.2 units*
(> 10000
measurements)
Temperature Drift 0.02 units/°C*

Haze
Repeatability ± 0.3 units*
Reproducibility ± 2.0 units*
Long-term Stability ± 0.3 units*
(> 10000 measur.)
Temperature Drift: 0.2 units/°C*

Measuring Time: 1.5 - 4 sec.
(mode dependent)

Light Source: tungsten lamp
(5 V / 190 mA)

Detector: silicon photocell
V(Lambda) ltered

Display: LCD
with back lighting

Statistics Memory: 9 x 600 meas.
battery backed
data protection for
10 years

Interface: RS 232 C for
control and data
evaluation via PC

Connections: RS 232 C
9-pin Sub-D
footswitch
15-pin Sub-D

Power Supply: 115/230 V
50/60 Hz

Power Requirement: 50 VA

Fuses: 1 AT (230 V)

1.6 AT (115 V)

Temperature Range:
Operation +10 to +40 °C
Storage 0 - to 50 °C

Dimensions (cm):
Width 33 cm / 13.0 in.
Depth 40 cm / 15.7 in.
Height 52 cm / 10.5 in.

Weight: 14,3 kg

Test Marks: DIN, GS-TÜV

Particularities: Display in

English, German,
French, Spanish,
and Italian

* Standard Deviation
** Related to a high gloss standard;

Haze values are related to values
>10 haze units due to the logarithmic
scaling.

Technical Data are subject to change
without notice.

12. Sources of Errors

ERROR !

Cause

In the automatic measuring mode the
measurement is started before the
sample is moved close enough to the
measuring aperture.

Remedy

Repeat measurement.

Memory full!

Please Recalibrate!

20° Lamp defect !

Delete:
Escape:

DELETE
SAMPLE

Cause

The storage capacity is exhausted
(600 memory locations).

Remedy

If possible, transfer stored data to a PC.

Continue:

Cause

Lamp is defect.

Remedy

Replace the lamp.

OPERATE

Continue:
Calibration:

SET UP
OPERATE

Cause

Lamp aging or loss of stored calibration
values.

Remedy

Re-calibrate.