D 186
À Unique Densitometer
À Measurable Difference
TEL 215-843-5044 FAX 215-438-2718
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an SO OO
Ly 69 La Lh
D ев = 7
C о M Li E N
switching on the unit
Function selection
Mode selection
Filter selection
Display reversal
, Zero reset
. Density
. Density difference
Entry of reference values
Entry of toleránce values
. Dot gain
Entry of halftone percentage
. Dot area
Entry of the solid tone reference values
. Contrast
. Trapping
. Hue error
. Greyness
Battery replacement
Inspection of lamp function
Replacement of measuring lamp and tube
Adjustment of the measuring aperture
+ kode + ¡A a Fal Lge] e +
Ц Uperating keys
Optics unit
4] Measuring aperiure ba
5] Charger A
[5] Calibration card
[7] [A] Mode keys
Permit display reversal
as well as entry of calibration
= 1
В Filter selection key
[10] Zero reset kay, OM button
ll Function selection key
e] Charger connection
[9] Data interface (for connection
to printer or computer)
[4] | Ла protect Не ñ E e
Bl — Ue
Jensity 1 [5] Г. = [A] | Se
Density СИ 2 | = ©1 . Auto
Dot gain 3 | [<n F2%
Dot area 4 = F106,
Contrast Cal
Trapping 6 bs ral
Hue error 7 co на Ref.
Greyness a №- | Meas,
. /
E] Mode display [8] Out-of-tolerance display
5] Function display [20] Negative sign
[17] Display ol measured colo Fi Sequential display of measuring
EA sieps
(8) Dispiay for automatic hites A |
selection 2 HAL warning: Low! Battery
Density diff.
Dot area
Hue error
GRETAG's D 186 - A Densitometer with totally new
Based on its capabilities, the GRETAG D 186 15 a unique unit which decisively
optimizes quality control in reprographics. It is designed to perform all con-
ventional measurements and features a wide variety of technical enhance-
The battery powered GRETAG D 186 is compact, lightweight and nugged.
This manual contains comprehensive information for operation of the D 186.
The O 186 is packed in a special shock-resistant box Keep it for returning
the unit if necessary.
Before using make sure the voltage indicated on the charger complies with
your respective line voltage. If this is not the case, your GRETAG Service Center
will be able to reset or exchange your A
Charge the D 186 at least 14 hours before first use. When the charger is
connected, measurement can be performed immediately,
To safeguard calibration and reference values, charge the D 186 approx,
24 hours if the rechargeable battery is not to be used for several weeks or if
unit is not used within a 2-month period, This measure also ensures long
operating life. A fully charged battery permits approx. 4,000 measurements.
Switching on the unit
The unit can be switched on in different ways:
- Press the ON button [a].
The display indicates the data which appeared before automatic switch-off
of the unit.
- Press any other key.
The display changes depending en he function of the key pressed.
— By performing a measurement.
The unit switches off automatically If no measurement is made or key is
pressed within 40 seconds. However, all values remain stored.
Function selection
The GRETAG D 186 has diferent operating states. The following functions can
be selected:
"Meas” Measurement (only this func-
| | tion pernits mode selection)
Density E Ses. “Ref” Entry of solid tone reference
Density diff. 2 Ado A ai | |
“Tol? ntry of tolerance values
ak ge A = “Cal” Calibration
Dot area 4 Fi%. *Fiÿ" Entry of first film percent
Contras! 5 Cal, value
Trapping 5 Tol "Р 2%; ca of second film percent
Hueero 7 Ref,
Greyness 8 =| Meas
The “Meas” “Ref and "Tol" functions can be selected by actuating key F * [ill
The “Cal”, “F1%.", and “F2%." functions can be accessed by first pressing the
red data protection key [A] together with key F + [1] until the desired function is
Mode selection Filter selection
Since the GRETAG D 186 has an automatic filter selection feature, it can auto-
The D 186 has permanent programs tor measurement of diferent quality matically detect and display a measured color
Eu matic filter selection, press
Measurement possibilities include: For automatic filter se Р
Г \ “Color key t [3] until eis displayed for
Density 1 | —-- I Seg Auto”
Density off, 2 # | Auto
1 Density Dot gain 3 F2%,
Density 1 [== Ses 2 Density difference in relation to a ass 41 mm | 1%
Density diff. 2 Auto density reference value Contrast Е Mu Cal.
Dot gain a Fou 3 Dot gain of one or two halftone Trapping 6 Tol
Dot ares 4 Fis. values Hue error r \ | | Ref,
Contrast в Cal 4 Doi area Greyness B E | Mens
Ne — — — —————
frapong 6 To 5 Contrast
Hue error 7 Че! 6 Trapping Tne 0186 will now automatically display the color measured. Refer to the
Greyness — E æ|Mess — 7 Hue error following designations:
E B Greyness B = Black M = Magenta
С = Cyan ¥ = Yellow
IT the “Measurement” function + PAT the desired mode can be selected
by pressing Ihe "Mode" keys 4 [7] or + [8].
В For special purposes, hiters can also De
nreselected manually, The “Color” key *
Density 1 —- ME Seg [F] is pressed until the display indicates
Density diff, 2 — Auto the desired color The symbol for the
Det asin а Fo automatic filter selection feature (@)
e — May not appear simultaneousty
Dot area 4 —— Fi,
Contrast 5 Cal,
Trapping 6 ml Tol.
Hue error 7 Rel
Greyness 8 | Fu № | Меаз
= a
The D 186 will now always display the values measured with the selected
filter for each measurement
The values measured through all four fitters are stored for every measuremen
By pressing the “Color” key + [7], values measured through other filters can be
displayed. Remeasurement is unnecessary.
Agu a
—B ee]
3.1. Zero reset
Measurement The D186 must be zeroed lo the paper white (white reference value) before
- Set measuring aperture [4] to the measuring field. measurements on new paper are made.
— Far h ni Procedure:
Fo REELS, Simply press the rear of the unit downward. Whan the D186 is In the “Measuring” function, it can be zeroed; regardless of
The optics unit extends; unintentional movement of the unit dunng measure- the made. Zeroing is valid for all tour color channels, irrespective of whether
ment is virtually impossible, the automatic filer selection is operative or a color filter was preselected,
1 - Position measuring aperture [3] оп ал
Display reversal gn unprinted section of the paper,
For trouble-free measurement with either the right or left hand, you can now ene I“ J = Press the "Zerg" key [©], hold down
reverse the display 180° by simply pressing a key, Densty dif, 2 AUS andtake a measurement.
= Set function display with key t [i] to "Meas (Measurement). ot el L ст fo - AZ” (Zero) appears briefly on the
- Press *Mode" keys | [7] and + [3] simultaneously to shift the display . © display and 0.00 which indicates tha
Contrast 5 Cal, measurement was performed cor-
Trapping 6 CI Tal. rectly.
Hue error r C " Hel.
Greyness — Bl =| Meas.
Density 1 | = =— Seq. Density 1] —— | Seq.
Density diff. 2 z ® | Ао Density dl, 2 a, Y | AO
Dotgan = 3 [FA Dotgain 3 F2,
Fim | - E 3 3.2. Density
Contras ï Contras ;
Trapping ë Fr Tol. Trapping B za Tol. Normally, the automatic filter selection feature (Auto) is used for density
Hue emor f o Ret. Hue amor 7 E Ref. measurement.
Tom. € в Loli 8| = Неа) - Set function display with key F * M to
“Meas” (Measurement)
Display for measurements with lel hand Display 1 | ith fight hang Density ce sed E *
ay solay for measurementa wi ng | A - Set mode display with "Mode" keys
Density dil, 2 ® | Auto ¡[Mor + ]to “Density”
Sn 3 от ВВ The previous measured value (or
Dotarea 41 ey | FI: possibly Er 5) appears on the display.
Contant » i | | va - Position the measuring aperture [Eon
Trapping 6 Ted the desired area and take a measure-
Hue error 7 Fu Ref, ment.
Greyness 8 P| Megs. — The measured color and density
— value appear in the display.
3.3. Density difference
The "Density difference” mode makes it possible to measure the density de-
viation with respect to the reference density value. The D 186 also indicates
if the density value is outside permissible tolerances.
Reference and tolerance values can be randomly selected for all colors. They
remain stored until overwritten or the rechargeable battery is exchanged
Entry of reference values
Normally the automatic filker selection (Auto) is used for entering reference
Density diff
Dot gain
Dot ares
Hise error
009 - Oo On a 05 ky =
- Sel function display with key F + [it]
to “Ref” (Reference),
- Measure the desired reference ele-
- The reference density value and the
respective color are indicated on the
— The measured reference value can
be altered by pressing key + [B] or
~ [7]. This permits storage of any
reference values.
- To enter reference values of other
colors, take measurements of the
respective reference elements and
alter values with keys + [Bl or = [7].
Entry of tolerance values
The tolerance value defines permissible deviations from the stored reference
value. To enter tolerance values, the filters must be manually preselected with
the “Color” key + [9]
Density diff,
Del gan
Col area
Hue error
| Auto
= Sel function display with key
Е + [1] 10 “Tol” (Tolerance).
- The previous tolerance value or Er 5
as well as tolerance symbols $
appear on the display
= The tolerance value can be changed
by pressing keys + LB] or—
— To enter the tolerance values of the
other colors, select the fillers with the
"Color key + [1].
Measurement of the density difference
Normally the automatic filter selection leature (Auto) is used for measuring the
density difference.
Density dif,
Dot gain
Dot area
Hue emor
MO = a {HA us 0 №] —=
- Sel function display with key F + [1] to
"Meas. (Measurement),
- Set mode display with "Mode" keys
+ [Mor t [8] to “Density diff”
= Perform measurement at desired
- The density difference value and an
indication of values either above | À |
or below (v) the stared tolerance
range are displayed
3.4. Dot gain
The "Dat gain” mode permits dol gain measurement in two different halftones.
The Murray-Davies equation is used for calculation and the result is displayed
in percent, The D 186 can be matched to all color control strips with the entry
of two random halftone reference values.
Entry of halftone percentages
The halftone percentages entered apply to all color channels, They need only
be entered once and remain stored until they are overwritten or the recharge-
able battery is replaced,
- Press the red data protection key E
[ | together with the function key F +
Density ! 580. until "F1%." or "F20” is selected.
vean di 2 MON _ The previous reference value 1 or 2
Dot gain 3 F2%. (or Er 5) appears on the display
Doteres 4 m1 FPS _ Press the key + [] or - [until the
Contrast 5 Cal. desired percentage appears on the
Trapping 5 Co Tol disp (e.g. BO). When keys + [8] or
ea 7 | nat - 1] are pressed down continuously,
Ca the change in the indicated display is
Greyness a | Meas. first slow and then fast,
If only the dot gain measurement of one halflone value is desired, set the
"F2%, reference value to "—1"
Mormally the automatic filter selection feature (Auto) is used for dot gain mea-
- Set function display with key F * [Ml to
Densi ] "Meas” (Measurement).
: | sea Set N display with SA key
Density Е $
E ® (Ado or [Eto Dot gain”
Del gain 3|— Fo.
Dotares | do | rm
Contrast 5 Cal,
Trapping 6 Tal.
Hue amor 7 Red.
Greyness —B = | Meas,
Measuring procedure:
- H and sequence | appear on the display The first measurement step
can commence.
— Measurement of the solid tone,
The density value of the solid tone and sequence || appear on the dis-
play so that the second measuring step can be performed,
= Measurement of the first halftone,
The dot gain in the proof is indicated on the display in percent. Il “F2%* was
not set as a negative value, sequence lil appears as a request to perform the
third measurement step.
— Measurement of the second halftone (possible only if not a negative value
was set for *F2%."). The display indicates the dat gain in the proof in percent
and sequence |,
- The solid tone must be measured again before further measurement of the
dat gain,
If zero is entered in F1%. and/or F2%. instead of the halftone percent. the dot
area in the proof appears an the display.
3.5. Dot area
{| area in the proof to be determined lor Dot area measuremeni
he “Dot area” mode enables the di
I "Y halftone values The autor nalic filter selection feature (Auto) is norma № Liga [Of dol ares
The solid tone density value can be stored and must theretore De measured measurement
only once. This facilitates the determination of the print characteristic. Calcuta
bon is performed according to the Murray-Uavies equation, and the rasuit 15
indicated as a dol argea percentage | |
Set function display with key F 1 [1] ti
rr = "Mas, (Measurement)
Liens" | ed
Entry of the solid tone reference values Cani ei ; _ a Las Set mode display with “Mode” keys
The automatic inter selection feature (Auto) can De used for entering ine Furl 3 Ро + 17] Or T BO “Lol area
reference values. ; - Measure the selected halftone
Reference values remain stored until they are overwritten or the rechargeable , : Ре The dot area in the proof is
: Contrast 5 СВ
battery is replaced LA caled on ihe cispiay
rapping Tal,
Red [he next halftone value can be mea-
- sured for further measurements with
Meas the same density reference value
He ГО!
- Sel function display with key F t [1] to
“Rel” (Reference) ;
Density | — Se : : valuë must be re-entéréd
; Perform measurement on the désired
Density diff, 2 P| Auk E Eee
f = reference element.
Dot gain a FA
— Otherwise, the solid tone reference
[he density reference value and
Dal area 4 —— я associated color appear an the
Contrast 5 Cal display
Trapoing 6 Lis roi -The D 1865 uses the density value of
Huë erica r E | Ra ne 50H05 lone [0 calculate Ihe Gob
3 area. The reference value must there-
Greyness | © e fore be measured very close to the
halftone values to be determined
Perform measurements on ihe
respective relerence elements for
entry öl ¡ne reference values ol
ather colors
3.6. Contrast
The “Contrast” mode makes It possible to determine the relative prin contrast
between a solid tone and a halftone, Contrast is preferably measured to 70%
or 80% of the halfione patch, The results are between 0.00 (no contrast) and
1.00 (max, contrast)
The automatic filter selection feature (Auto) is normally used for contrast
- Sel function display with key F + [1] to
"Meas- (Measurement)
Crengity 1 — | Seq ud | th Mode" kevs
- Set mode display with Mode key:
Density diff. 2 — * Se ¡ Mort Eto "Contrast"
Cot gain 3 F2% I ee
| == Eros The display indicates H and se-
Dot ares A ; quence |. The first measurement step
Contrast 5 | == Са! Can commence.
Trapping 6 Tok - Measurement of the solid tone
Hue error 7 Ве! The density value of the sold tone
and sequence || appear on the dis-
= :
Gemas El wm play so that the second measuring
step can commence.
Messurement of the halftone,
The relative print contrast and se
quence | appear on the display
- The solid tone must be measured
again before a further measurement
af the contrast.
3.7. Trapping
The “Trapping” mode permits the trapping of two overprinted ink layers lo be
determined automatically. The adhesion of the second layer on tha first is
EXPres sed in percent
The automatic filter selection feature (Auto) can be used for trapping
Density i
Density difl
Dot gain
Dot gres
Hue error
Do 0 En a a A
Set function display with key F + [11 to
"Meas” (Measurement)
Set mode display with "Mode" keys
{ [Tort [8] to “Trapping”.
The display indicates HT and se-
quence |, The first measurament step
can commence
Measurement of the first run color,
HZ and sequence || now appear on
the display, and measurement of the
second run color can commence.
Measurement of the second run color
The density of the solid tone, the
measured color and sequence Il
appear on the display s¢ that the
overprint can now be measured
Measurement of the overprnt
rapping of the overprint on the first
run color appears on the display in
percent. Sequence | is also indicated
The first run color must be measured
again for further measurement of the
IT the automatic fitter selection feature 15 nol used, all measurements have to
be made with the filer for the overprinl, The measuring sequance |s identical
to that when using automalic filter selection
3.8. Hue error
The "Hue error mode permits the hue error of a color io be determined
automatically. The result is expressed in percent,
The automatic filter selection feature (Auto) is always used for this measure-
ment, If a filter is preselected manually, the automatic feature overrides it,
Fr 1 "Meas” (Measurement).
PS I 3 _ set mode display with "Mode" k
- Set mode display with “Mode” keys
J в és =
Density lift и Auto i [7] or 4 [A] to “Huye er”
Dat gain 3 Р2%
is - The display gives a percent readout
Dat area 4 Fi. of the hue error of the last solid tone
Contrast 5 Cal measured
Парри 6 Г! Ter. - Take a measurement of the desired
Hue error 7| = Lm Ref, area.
Greyness 8 =| Meas The display indicales the hue error in
— percent.
- Set function display with key F * M] to
3.9. Greyness
The “Greyness" mode permits a colors greyness lo be determined automanti-
cally. The result 1s expressed in percent,
The automatic filter selection feature (Auto) is always used lor this measure-
ment. If a filter is preselected manually, the automatic feature overrides it
- Set function display with key F + [1] to
‚ [ a | р ‘Meas” (Measurement)
nsity 7 ed. = ; :
- Set mode display with "Mode" keys
Density aiff. 2 ® | Auto i [For t [4]to “Greyness”.
EN 2 EE «- The display gives a percent readout
Dot area 4 FIL. of the greyness of the las! solid tone
Contrast 5 Са! measured.
Trapping 6 — — Tal, — Take a measurement of the desired
Hue emor 7 Mu Ref ared,
Greyness | = =| Meas. — The display indicates the greyness
= — error in percent.
Densitometer D 186 has excellent long-term measuring reliability. The unit
should, however, be inspected approx. once a month and recalibrated if
Calibration check
The automatic filter selection (Auto) feature is normally used for the calibra-
ton check,
— Zero densitometer on the white field (Zero) of the supplied calibration card.
- Measure the density of the color fields on the calibration card.
- Compare measured values with the reference values given on the cali-
bration card,
- Recalibration is unnecessary if there is a difference of only +/- 0.01,
Performing calibration
Normally the automatic filter selection feature (Auto) is used for calibration:
- Press the red data protection
4 | | together with the function key E Ч
— 2 ' À Seq. The display now indicates "Cal:
Devisity nt | Auto — When the automatic fiter selection is
Dot gain 3 F2%, used, the display indicates — or Er 5
Dot area 4 Fie, as well as sequence |; white mea-
Conriat E > | cal surement can commence,
Trapping - Measurement of the white field (zero
en ; = an the calibration card, #80
When the automatic filter selection Is
Greyness 8 Meas, used, the display indicates -- and
Pe 0.00 as well as sequence II; color
measurement can commence.
- Measurement of à color field on the calibration card,
Las irene calibration value and the respective color appear on the
- By pressing keys + [8] or — [7], the displayed calibration value can be increas-
ed of decreased until it coincides with the reference value of the calibration
- Measure the color field of the next color and adapt the value. It is not neces-
sary lo repeat the white measurement as long as sequence di |5
indicated in the display as a request for color measurement. ni
| 5. ENNONMESSAGER=-- 2 ——
Refer to the following list for D 186 error messages:
| Er1 Density too low.
| Er 2 Density too high.
The density of the prool is too high or the measuring lamp is defective,
Er3 Computer overflow (faulty measurement),
Measurement not performed in the correct sequence.
Er4 Drive blocked.
The mechanical drive is blocked or the optics unit cannot be extended.
As soon as this situation is remedied, a measurement should be per-
formed to retum the optics unit ta its home position.
Ег 5 Calibration or reference values missing.
Calibration or reference values are not stored (e.g. when the recharge-
nn battery is completely discharged or alter replacement of the
Error remedy depends on the respective unit mode, Proceed as follows:
Density, contrast,
trapping, hue error,
greyness Calibrate
Density difference Check reference and tolerance
values. Re-enter if necessary
it Er 5 remains, calibrate.
Dot gain Check halftone percentage values
F1%. and F2%. Re-enter if necessary.
It Er 5 remains, calibrate,
Dot area Check solid tone reference and
re-enter if necessary.
It Er 5 remains, calibrate,
Er 8 Battery discharged.
Battery voltage too low. Connect charger. Caution: The battery may be
damaged if further measurements are attempted and the charger is not
BAT Warming: Low battery.
If the BAT warning is indicated on the display, approx, 50-100 measure-
ments can be performed until battery voltage is no longer sufficient for
proper unit operation
Battery replacement
- Unscrew screw [25] of battery com-
partment and remove cover
- Withdraw battery and unplug con-
— Insert cable of new battery (coded
- Insert Datiery in compartiment and
replace cover
Inspection of lamp function
À simple test can be used to see whether the measuring lamp is OK or needs
- Select the "Density" mode and “Meas” function
- Set measuring aperture [4] on the white field (Zero) of the calibration card
- Press data protection key [WW] just after measuring stan
The display indicates a value which must be within 0.0 and 0.7. If not, replace
Adjustment of the measuring
- Unscrew measunng aperiure mount-
ing screw [28 until aperture can be
- Manually set adjustment knob [2] to
position [A].
- Move optics unit manually until
adjustment knob is on position [8]
- Place paper between measuring
module and aperture opening
- Switch on measunng lamp by press
ing the red data protection key [ig],
- Center aperlure opening by moving
he aperture to (e ight spot.
Retighten mounting serews [M1
Replacement of measuring lamp
and tube
- Remove measuring aperture by un-
screwing screws [26
- Manually set adjustment knob [25] to
position [A]
- Move optics unit manually until
adjustment knob is on position [8]
Remove tube by unscrewing
screws [25]
- Heplace lamp including bracket (snap
- Screw on tube.
Install measuring aperture and adjust
Available filter sets
Filter set 478 according to DIM 168536 (Kodak Wratten Filter)
Filter set 47 according to ANSI Status T (Kodak Wratten Filter)
Marrow band filter NB according to DIN 16536 (interderence filters)
Available measuring tubes
Measuring tube P with polarization filters
Measuring tube U without polanzation liters
Rating plate
The filter set and measunng tube are designated on the rating plate before the
unit leaves the factory
For example:
= 478: Filter sel with blue filter no. 478
47 : Filter set wilh blue filter no. 47
- № : Filter sat with interference fillers
- FP :Measunng tube with polarization
=; Measunng tube without polan-
zation filter
The compact printer (220 V model: pn 14.30.48: 110 V model: pn 14.30.50)
can be connected using interface (1) and data cable (34.70.01) Every measur-
ing operation is then automatically protocoled as follows. For example:
4:Y 55% R 1.23
reference values
Mode/color measured value
Connection designation of interface [7]
2 TAD (to printer)
1-6 Bridge circuit
Measuring geometry:
Light source:
Color filter: — Filter set 476
- Filter set 47
- Interterence filter
- Visual
Measuring range:
Intennsiniment agreement;
Measuring aperture dia.:
Calibration: - Slope
- Zero
Polarization filter:
Warm-up time:
Power supply:
Charge time:
Charge status:
Measurements pro charge:
Measuring time:
Data interface:
LCD Digital
094 59
ring lens system
Filament bulb approx. 3000 K DIN
approx. 2858 K ANSI
51 photodiode
DIN 16536
ANSI Status T
DIN 16536
V (A), CIE/ANSI PH 218
(0.00 D — 2.20 D. Yellow NE)
+!= 0:01 D
+= 1% (for dot ares 109—100%6)
+ 0.01 D or +/= 1%
+1- 002 D'or +/- 2%
3.6 Mm
For density measurement
2x Imear (tube P)
Hechargeable baitery rated 7.2 V. B00 mAh
Approx. 14 hours
Automatic check and inspection
Approx. 4000
Approx, 0.8 5
RS 232 C, unipolar, 5V TTL level
Baud Rate: 1200 Bd
Parity: none
Data format: 1 start bit
8 data-bits; 1 stop bit
Data transmission in ASCII format
Remote operation of densitometer with
computer (request further information)
Approx. B50 g
Tx T.6Xx22 cm
Calibration card, Operating manual, Charger
specifications subject lo change withou nobce
— Jump into the Monitor by pressing first the red key [14] together
with the << Color * => key [9].
— Use << Р * >> [11] to select one of the following positions:
<P> Printer protocois,
<S> Baud rates.
the absolute densities <B>, <Cz>, <Mz>, <Y> and <D>,
<W> White calibrations.
= Change displayed settings using << + Mode! >> [7] or [8].
— Leave monitor using << Zero/On >> [10].
— <P 000> Nomal protocol
1: X xx CPVLF
x: B.C.M.Y filter
Modes Нес Май ик»
- <P 001> Special protocol
Vir. w Coco Mmmm Yy. yy CALF
Y Visual filter
CCyan M Magenta
<FHilter><Value>< >
7.77 indicates value below -1.
- 5000 110 baud. S003 1200 baud,
5001 300 baud. S004 2400 baud,
5002 600 baud. 5006 4800 baud.
Y Yellow
<<, >> and <..> represent keys and displays, respectively.
- Jump into (he Monitor by pressing first the red key [14]
together with the << Color t>> key [8].
- Use << F *>> [11] to select white calibration <W>.
- Select absolute white calibration <Abs> using
<< + Mode *>> [7] .or [8].
— Leave Monitor using << Zera/On >> [10].
— Jump into the calibration mode by pressing first the red
key [14] together with << F 7 >> [11],
— Adjust the four zero values of absolute white as per calibration
card with << + Mode * >= [7] or [8]. Select fillers with
<< Color + >> [9].
— Make measurement on white field of calibration card zero.
— Choose automatic filter selection with << Color * >> [8].
- Measure the color fields B,C,M and Y and adjust thes displayed
density values absolute white as per the calibration card by
pressing << + Mode * >> [7] or [8].
- Leave calibration mode by pressing << F * >> [11],
<<..>> and <= represent keys and displays, respectively,
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