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Introduction

The Tobias

IQ

is a portable, computing reflection densitometer. Density

readings are displayed on a large, easy-to-read LCD screen, which
displays a prompt line and a legend controlled by soft keys. There are
three available menus, which are selected by the [MENU] key. Each menu
offers several measurement functions operated by the three soft keys. The
[MENU] key is used to display the menu choices at any time (see list
below). The

IQ

turns off automatically after 90 seconds to conserve the

battery. Press [MENU] to restore the last display. In this manual the
brackets [ ], represent the menu key and soft keys; words in quotes stand
for on-screen messages, i.e. "REF".

MENU 1

•

Density [DENS] (IQ150 & IQ200)

•

Density Difference [DIFF] (IQ150 & IQ200)

•

Setup [SETUP] (IQ150 & IQ200)

MENU 2

•

Dot Area [AREA] (IQ150 & IQ200)

•

Dot Gain [GAIN] (IQ150 & IQ200)

•

Trap [TRAP] (IQ200 only)

MENU 3

•

Hue Error [HUE] (IQ200 only)

•

Grayness [GRAY] (IQ200 only)

•

Print Contrast [CONT] (IQ200 only)

•

Note:

The IQ will maintain calibration for weeks at a time; however, it is

recommended that the unit be calibrated daily for greatest accuracy. The calibration
routine is described under Setup in MENU 1.

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Содержание Tobias IQ150

Страница 1: ...Densitómetro IQ150 Tobbias TB IQ150 ...

Страница 2: ...r Density 0 Density Difference 0 Dot Area 0 Dot Gain 0 Trap 0 Hue Error 0 Grayness 0 Contrast 0 T H E T O B I A S IQ150 IQ200 COMPUTING PORTABLE REFLECTION DENSITOMETERS MEASUREMENT FUNCTIONS IQ150 Densitometer 0Density 0Density Difference 0Dot Area 0Dot Gain ...

Страница 3: ......

Страница 4: ... T H E T O B I A S IQ150 IQ200 COMPUTING PORTABLE REFLECTION DENSITOMETERS S0172 004 19 50 Industrial Drive Ivyland PA18974 0347 USA Phone 215 322 1500 Toll free 800 877 3367 Fax 215 322 1504 E mail repair tobiasinc com ...

Страница 5: ......

Страница 6: ...NU 2 Dot Area AREA IQ150 200 7 Dot Gain GAIN IQ150 200 8 Trap TRAP IQ200 only 9 MENU 3 Hue Error HUE IQ200 only 10 Grayness GRAY IQ200 only 11 Print Contrast CONT IQ200 only 12 FAQ 13 Source Lamp Replacement 14 Battery Pack Replacement 15 Error Messages 16 Specifications 18 Parts List 18 Appendix RS 232 Primer 19 Connections to a Computer 21 Slope Calibration 22 ...

Страница 7: ......

Страница 8: ...lly after 90 seconds to conserve the battery Press MENU to restore the last display In this manual the brackets represent the menu key and soft keys words in quotes stand for on screen messages i e REF MENU 1 Density DENS IQ150 IQ200 Density Difference DIFF IQ150 IQ200 Setup SETUP IQ150 IQ200 MENU 2 Dot Area AREA IQ150 IQ200 Dot Gain GAIN IQ150 IQ200 Trap TRAP IQ200 only MENU 3 Hue Error HUE IQ200...

Страница 9: ...he primary filter is shown in large letters the secondary colors are shown smaller To read Relative Density 1 Be sure that RF is on the prompt line If not press REF This allows you to ZERO on your paper and should be done for each job 2 Read sample The primary filter is shown in large letters the secondary colors are shown smaller To change Base values 1 Press BASE 2 Read the base To send the info...

Страница 10: ...2 Press DIFF To change the reference value 1 Read sample 2 Press the SAVE Readings will be compared to that standard 3 To adjust press REF then or until correct Press SAVE to save and go on to next color When all are adjusted press SAVE to save and exit Press MENU to exit during routine To find Density Difference Read the sample The density difference and reference values will be displayed To send...

Страница 11: ... patches on the reflection standard Density values should match those on the envelope If not recalibrate unit To adjust values to another calibration plaque 1 Press SETUP CAL and then PLQ 2 Move by pressing NEXT until it points to next value to be changed 3 Adjust value by pressing or 4 Repeat as needed for other colors 5 Press MENU to exit 6 Read Calibration Plaque again To test the source lamp 1...

Страница 12: ... switches to calibration plaque setup mode check these values against envelope of calibration plaque and adjust if necessary using or key to increase or decrease value 5 Press MENU to proceed 6 Recalibrate unit by following prompts To change the I O Input Output variables 1 Following DFLT you may need to restore I O values Press I O in setup mode 2 Press NEXT to cycle STEP to change and SAVE to sa...

Страница 13: ...ally by pressing the PRINT key or automatically after a reading is taken To enter Print Transmit function 1 Press MENU until MENU1 is displayed 2 Press SETUP To select printer mode 1 Press NEXT until the arrow is pointing to PRT 2 Toggle from MAN manual to AUTO by pressing STEP To exit Press either SAVE or MENU to save and exit ...

Страница 14: ...h to Yule Nielsen equation press YULE Then follow Step 3 below To use Yule Nielsen equation 1 If the unit is in the Yule Nielsen mode the N value is displayed 2 To change the base value press BASE and read the base 3 To change the N value press N then N or N Exit by pressing MENU 4 To switch to Murray Davies equation press N then M D 5 Determine dot area by reading the solid then the tint patches ...

Страница 15: ...cle through the reference values 1 Select 25 40 50 75 or 80 by pressing REF repeatedly 2 Press MENU to exit To change to base values 1 Press BASE 2 The next reading becomes the new base Each channel maintains its own base value To calculate Dot Gain 1 Read solid 2 Read tint patches for accuracy read adjacent solid and tint patches To send the information to a printer or computer Press PRINT ...

Страница 16: ... sample 3 Read the overprint sample 4 The density will appear briefly then the trap value To change base density 1 Press BASE 2 The next density reading becomes the new base Each channel maintains its own base value To identify composite colors Magenta Yellow yields Red Cyan Yellow yields Green Magenta Cyan yields Blue To send the information to a printer or computer Press PRINT ...

Страница 17: ... three color densities will be displayed along with the hue error expressed as a percentage To change base density 1 Press BASE 2 The next reading becomes the new base Each channel maintains its own base value To display Grayness 1 Press GRAY 2 Return to the hue error mode by pressing HUE To send the information to a printer or computer Press PRINT ...

Страница 18: ...ding becomes the new base Each channel maintains its own base value To determine Grayness 1 Read the color sample 2 The highest and lowest color densities will be displayed along with the grayness expressed as a percentage To display Hue Error 1 Press HUE 2 To return to grayness mode press GRAY To send the information to a printer or computer Press PRINT ...

Страница 19: ...ast mode 1 Press MENU until MENU3 is displayed 2 Press CONT To determine Contrast 1 Read the solid patch 2 Read a 75 tint patch 3 Its density will appear briefly then the printing contrast To send the information to a printer or computer Press PRINT ...

Страница 20: ... Clean the plaque with window cleaner prior to each use Do not trust your eyes to judge if a plaque is clean The densitometer can see smudges that you can miss Smudges on the white or zero spot of the plaque are read by the densitometer as an increased density while smudges on the black spot reduce the density How can I match two densitometers After calibrating to the calibration plaque color resp...

Страница 21: ...es of the case These are connected by a thin ribbon cable Use extreme care not to damage the cable when separating the two halves 5 Loosen the lamp retaining screw Slide the lamp out of its hole 6 Unplug the lamp wires from their posts Plug the new lamp wires onto the post and slide the lamp fully into its hole Gently tighten the retaining screw Over tightening will break the lamp 7 Place the two ...

Страница 22: ... Carefully separate the halves of the case These are connected by a thin ribbon cable Use extreme care not to damage the cable when separating the two halves 6 Remove the screws holding the battery plate in place and unplug the two connectors Replace the old battery pack Tobias part A1496 with the new one replace the screws and reconnect the connectors 7 Place the two halves of the unit back toget...

Страница 23: ...o longer hold a charge it must be replaced Negative Density This message will appear when in any mode other than density or density difference It indicates that the density measured was less than the base density of the paper or base material or the reference values are incorrect Printer Off Line The printer may not be selected be connected or may be out of paper System Fault The unit detected an ...

Страница 24: ...nstable Reading Possible causes the unit may of been moved while reading densities the lamp s output is not stable or the lamp has burned out Value Overflow Indicates a calculation overflow In the dot area or dot gain mode the solid value was substantially less than the tint value indicating the values were read in reverse order In trap mode the overprint density may be read in the wrong order If ...

Страница 25: ...ch at rear of unit through small hole on center of back panel then recharge On older models without the reset hole unplug battery pack for five minutes plug back in then recharge at least 14 hours Also check for proper operation of charger ...

Страница 26: ... 8 data bita Handshaking Automatic Power Source NiCad Battery Pack Recharge Time 14 hours Dimensions 7 x 4 x 3 L W H Weight 28 oz Parts List Calibration Plaque A2088 Instruction Manual S0172 NiCad Battery Pack A1496 PCB to PCB Flat Flex Cable P0610 Storage Pouch P0605 Charger Unit P0642 Source Lamp A2122 RS 232 Cable P0609 RS 232 MAC Modem Cable Optional P0874 RS 232 Serial Adapter 9 Pin Optional ...

Страница 27: ...either even odd or none If even parity is used the parity bit is set on or off so that the total number of on bits is even Odd parity sets the parity bit so that the total of these bits is odd If no parity is specified the bit is not sent at all Although ASCII is a seven bit code it is often sent in an eight bit format when used with graphic printers If an eight bit format is used the last bit is ...

Страница 28: ...s Equipment DCE For proper operation when connecting two devices one must be set for DTE and the other must be set for DCE Most printers and personal computer serial ports are defined as DTE equipment The cable supplied with the IQ will allow you to connect it to these devices by simply plugging it into their connector If the device is defined as a DCE or the IQ s cable will not plug into the othe...

Страница 29: ...tly must be used The diagram below shows the cable connections required to connect the IQ to an IBM PC AT or compatible computer These machines may be equipped with either a 9 pin or a 25 pin connector Pinouts for both of these connectors are shown Optional connection Clear to Send is used to allow the computer to inhibit the transmission of data until it is ready Transmission is enabled when it i...

Страница 30: ... a sample patch of that color preferably on the main process colors of the control strip or the T ref Retain the sample in a safe place when this session concludes so that you can return to it for future slope sessions After you read the patch its color and density will be displayed At this time you can change the displayed density value by pressing the or key until the desired value is attained T...

Страница 31: ...ter the session is complete retain the sample in a safe place for future use Two or more IQ densitometer units Slope each unit one color at a time to the T ref or to a known good control strip with the ideal or previously established density values written next to each sample Do not expect the slope multiplier numbers to match as no two units are exactly the alike To use IQ units with a differing ...

Страница 32: ......

Страница 33: ...50 Industrial Drive Ivyland PA18974 0347 USA Phone 215 322 1500 Toll free 800 877 3367 Fax 215 322 1504 E mail repair tobiasinc com ...

Страница 34: ......

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