361T B / W T R A N S M I S S I O N D E N S I T O M E T E R Operation Manual
61T DENSITOMETER Federal Communications Commission Notice This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
361T DENSITOMETER CAUTION: To prevent electrical shock. DO NOT remove cover. No user serviceable parts inside. Refer servicing to qualified service personnel. ADVERTENCIA: Para evitar un choque eléctrico, NO QUITE el recubrimiento del aparato. No hay ninguno componente reparable de usuario, dentro del aparato. Consulte un técnico calificado para servicio o arreglo. AVVERTIMENTO: Per evitare una scossa elettrica, non staccare la coperta del apparecchio.
361T DENSITOMETER Table of Contents 1. Overview and Setup.......................................................................... 1-1 Instrument Description....................................................................................1-1 Features...........................................................................................................1-3 Unpack and Inspect.........................................................................................
361T DENSITOMETER 5. Mode Selection.................................................................................. 5-1 General Information........................................................................................5-1 x10 ON/OFF ...................................................................................................5-1 I/O Port Selection............................................................................................5-2 Setting the Sequence Structure ...................
361T DENSITOMETER Proprietary Notice The information contained in this manual is derived from patent and proprietary data of X-Rite, Incorporated. This manual has been prepared solely for the purpose of assisting in the use and general maintenance of this instrument. The contents of this manual are the property of X-Rite, Incorporated and are copyrighted. Any reproduction in whole or part is strictly prohibited.
361T DENSITOMETER This agreement shall be interpreted in accordance with the laws of the State of Michigan and jurisdiction and venue shall lie with the courts of Michigan as selected by X-Rite, Incorporated.
361T DENSITOMETER 1. Overview and Setup Instrument Description The X-Rite 361T is a B/W Transmission densitometer designed to meet the quality control needs of the Graphic Arts industry. Your 361T has been integrated with components from the leading edges of technology, which X-Rite has been internationally recognized for. [1] DISPLAY - is an 8-character Liquid Crystal Display. [2] DISPLAY CONTRAST ADJUSTMENT - allows you to adjust the display to the desired contrast.
CHAPTER ONE [6] READ HEAD - is the component that contains the optics which comes in contact with your film when taking measurements. [7] POWER SWITCH - turns the unit ON (1) and OFF (0). [8] VOLTAGE SELECTION SWITCH - selects 115V or 230V operation. [9] FUSE HOLDER - holds the proper fuse. [10] POWER INPUT - is where the 115V/230V AC line cord plugs in. [11] REFLECTION HEAD INPUT - is used to connect optional Reflection Head (see "Optional Equipment" in Chapter 8).
OVERVIEW AND SETUP Features Electronic Filter Selection - eliminates the problems that mechanical filter wheels create. Large Liquid Crystal Display and Electroluminescent Backlighting allows optimum legibility. Larger and Fewer Keys - which have been functionally placed for ease of operation and to cut down operator confusion. Sequence - allows for a setup of a measurement routine to meet the job requirements.
CHAPTER ONE Apply Power and Display Angle Adjustment NOTE: If the unit has been stored in an abnormal (cold) environment, DO NOT apply power to the unit until it has sat for several hours in a normal environment (10-30°C / 50-86°F). CAUTION: For safety and unit stability, do not modify line cord provided with this instrument. Connect to a grounded 3-wire receptacle. 1. Ensure that the proper operating line voltage is selected (slide switch to 115 V or 230 V as necessary).
361T DENSITOMETER 2. User Interface Key Description The Keyboard consists of three key switches, the [FUNCTION] d key, the [COLOR] c key, and the [ZERO] dc key. • FUNCTION Selects Density, +Dot, and −Dot. NOTE: Sequence function is disabled from the factory, and will not be displayed during function selection. If you want Sequence enabled refer to "Setting the Sequence Structure" in Chapter 5. • Decreases numeric values when used with [ZERO] key.
CHAPTER • TWO DISPLAY CONTRAST Rotate the wheel to the back (+) to increase contrast or to the front (-) to decrease contrast. Function Selection The [FUNCTION] key normally selects between one of three functions; DEN, +DOT, or -DOT. They are sequentially selected with each momentary depression of the [FUNCTION] key. Once the function you want is displayed, wait for the 361T to automatically drop into the function selected (approximately a 2 second waiting period).
USER INTERFACE NOTE: If DEN is the only function that can be activated, refer to "311 Emulation" to turn it Off. Color Selection The [COLOR] Key selects one of two colors, Ortho or UV. They are alternately selected with each depression of the [COLOR] key. "o" is displayed for Ortho and "u" for Ultraviolet. Each depression of the [COLOR] key will alternately display "o" (Ortho) or "u" (Ultraviolet).
CHAPTER TWO Reference and Base Entry Reference values are values, which are subtracted from each density measurement to display a density difference value. Base values are values, which cause +Dot or −Dot to display a predetermined Dot size when zeroed to a base dot or film base fog. Density Reference Entry Via Keyboard 1. 2. 3. Depress [FUNCTION] key repeatedly [FUNCTION] until "DEN" is displayed. Select color by depressing the [COLOR] key. Hold [ZERO] down (thru step 4). • 4. 5. "REF" is displayed.
USER INTERFACE Base Entry The Base value is usually set to 0% for +DOT and 100% for -DOT, or adjusted to a value equal to a known minimum (base) dot size (ex. 3% for +Dot or 97% for −Dot). 1. 2. 3. 4. 5. Repeatedly depress [FUNCTION] key until "+Dot" or "−Dot" is displayed. Select color by depressing [COLOR]. Hold [ZERO] key down (thru step 4). • Base value is displayed. Enter Base value using the [FUNCTION] key to decrease or the [COLOR] key to increase value. (depress both to reset to zero.
CHAPTER TWO MESSAGE REASON condition (if lamp was OK or replaced) by pressing [FUNCTION], then [COLOR], then [FUNCTION]. MEM TEST: The memory in the unit is going through an extended memory check. If “MEM TEST” remains on the display, the display PCB needs to be replaced. MEM LOST: Calibration of the unit has been lost and recalibration is necessary. NEED CAL: Unit needs full length calibration. uP FAIL: The microprocessor has failed its memory test.
361T DENSITOMETER 3. Measurement Procedures Density Function The DEN function allows you to take density and density difference measurements. The procedure for each of these are as follow. DENSITY MEASUREMENT 1. Repeatedly depress [FUNCTION] key until "DEN" is displayed. Previous density is displayed. 2. Select color (ortho or ultraviolet). 3. Measure film. Density value is displayed. DENSITY DIFFERENCE MEASUREMENT 1. Repeatedly depress [FUNCTION] key until "DEN" is displayed.
CHAPTER THREE -DOT Function −Dot allows negative dot measurements with zeroing to the Base Dot value. −Dot can be calculated for a Base equal to 100% or can be adjusted to a value equal to a known Dot size (ex. 97%). -DOT is normally used for negative films. -DOT MEASUREMENT 1. Repeatedly depress the [FUNCTION] key until "-DOT" is displayed. Previous Dot value is displayed. 2. Select color (ortho or ultraviolet). 3.
MEASUREMENT 1. 2. 3. 4. 5. 6. PROCEDURES Repeatedly depress the [FUNCTION] key until "SEQUENCE" is displayed. (If sequence does not appear, refer to "Setting the Sequence Structure" in Chapter 5). Function, Color, and Step to be measured first is displayed. Select color (ortho or ultraviolet). Take first measurement. Measurement value and Step number are displayed while the [READ] button is held down. After Read button is released, Step 2 is displayed. Take second measurement.
CHAPTER 3-4 THREE
361T DENSITOMETER 4. Calibration General Information The X-Rite 361T is designed for long life and extremely stable measurements. To follow good quality control practice, you should check Density and Dot calibration periodically to verify measurement accuracy and proper operation of your unit. To verify and perform Density calibration, a calibrated transmission reference has been provided. The transmission reference has a five step gray scale ranging from approximately 0.06D (step 1) to 4.0D (step 5).
CHAPTER FOUR 5. Enter the correct Cal Hi value for Ortho (as marked on the step tablet) by pressing and holding dc (ZERO) down and using the d (FUNCTION) key to decrease value or the c (COLOR) key to increase value. Then release both keys. 6. Depress [COLOR] key to select Ultraviolet cal value. Cal Hi value is displayed for Ultraviolet. (If value is correct skip to Step 8.) 7.
INSTRUMENT CALIBRATION N-Factor Adjustment Procedure NOTE: Transmission dot "N-factor" is calibrated at the factory and therefore should not require user calibration. However, if calibration to a particular 50% dot reference is desired, it is important that a reference with a true 50% dot area (e.g.; UGRA Plate Control Wedge, RIT Microline Resolution Target, etc.) is used. Enter the factory preset N-factors for ortho and u.v. below for future reference. ortho N-factor_________ u.v.
CHAPTER FOUR Quick CAL™ Procedure Quick Cal™ provides you with an easy means of re-establishing zero (Calibration Low). This method is included because the zero (Calibration Low) is the major factor of drift over a period of time. 1. 2. 3. 4. 5. 4-4 Depress [FUNCTION] and [COLOR] keys at the same time until "N Dcal Y" is displayed. Depress [ZERO] for YES. Depress [ZERO] for YES. Remove all film from table, and take a measurement. Release the Read button, display will automatically return back to DEN.
361T DENSITOMETER 5. Mode Selection General Information The Mode function controls four factors: x10 On/Off, I/O Port set-up, Sequence setup, and Read Lamp On/Off. Modes come preset from the factory as follows: 1. x10 [OFF] 3. SEQUENCE SQ [OFF] 2. I/O PORT COL [ADJ] RCI [ON] SQ [ORDER] RPT [OFF] SIZE [36] P5 [OFF] SKIP [00] (Skip Step 0) BAUD [1200] FUNCTION STEP [all set HRD [OFF] to DEN] DPT [ON] COMP [ON] 4.
CHAPTER FIVE I/O Port Selection Your X-Rite 361T comes equipped with a serial port that allows data to be transmitted and/or received by the 361T to/from an external device. The 361T can be externally controlled by the Serial Input Commands discussed in "Serial Input Commands" in Chapter 6. • RCI [Remote Control Input] enables or disables the ability to externally control the 361T via the I/O port. • RPT ON/OFF [Reference Print] enables or disables the Reference values during print-out.
MODE SELECTION The procedure for setting the I/O port options is shown below. 1. Depress [FUNCTION] and [COLOR] keys at the same time until "N Dcal Y" is displayed. 2. Depress [FUNCTION] for NO. 3. Depress [FUNCTION] for NO. 4. Depress [ZERO] for YES. 5. Depress [FUNCTION], "↓ I/O Y" is displayed. 6. Press [ZERO] to advance to RCI. Each depression of the [ZERO] key will alternate between RCI OFF and RCI ON. 7. Press [FUNCTION] to advance to FUNCTION RPT.
CHAPTER FIVE Setting the Sequence Structure Sequence allows you to setup a measurement routine that fits your individual quality control requirements. Sequence has a maximum of 36 steps and a function for each step can be selected. • SQ OFF/ON is used to disable or enable SEQUENCE from appearing as an active function in the main menu. • COL ADJ/LOC is used to allow ADJustment of what color response is used during sequence or to LOCk sequence into one response only.
MODE SELECTION The procedure for setting Sequence structure is shown below. 1. 2. 3. 4. 5. 6. Depress [FUNCTION] and [COLOR] keys at the same time until "N DcalY" is displayed. Depress [FUNCTION] for NO. Depress [FUNCTION] for NO. Depress [ZERO] for Yes. Depress [FUNCTION] two (2) times "↓ SEQ Y" is displayed. Depress [ZERO] to advance to SQ. Each depression of [ZERO] will alternate between SQOFF and SQ On.
CHAPTER FIVE Read Lamp ON/OFF This feature allows the densitometer to automatically turn the Read lamp OFF after 2 hours of instrument non-use. Having the Transmission lamp turn OFF will extend the time before lamp replacement. The lamp will turn back ON after any key is pressed, the Read button is pressed, or any "M, P, U, or Y" RCI command has taken place. LAMP ON causes the lamp to stay ON as long as the unit is powered on.
361T DENSITOMETER 6. Serial Interface Interconnect and Definition The 25-pin connector used for serial input/output is a DB25S type. Below is the connection diagram.
CHAPTER SIX A typical interconnection (in its simplest form) between the 361T and a computer is shown below. Receive Data Transmit Data Ground COMPUTER 361T W/DB25 2 ———————— 3 Receive Data 3 ———————— 2 Transmit Data 7 ———————— 7 Ground Serial Output The data format that is transmitted from the 361T is determined by the I/O PORT options found in "I/O Port Selection" in Chapter 5.
SERIAL INTERFACE Instruction Format In general, the format used as the command string for serial input is as follows: 1 2 3 4 DATA — ADDRESS — ACTION CODE — 1. 2. 3. DATA – is a two character hexadecimal code (in ASCII) which is written to the control register that is being addressed, and is used during a Write Action only. ADDRESS – is a one to three character hexadecimal code (in ASCII) that selects the memory location which will be acted upon.
CHAPTER J SIX [KEY ENABLE] is used to enable or disable all keys (with the exception of the Read button) from altering the operation of the unit. This switch enables or disables the keys by the 361T receiving the following as the Address and Action Code portions of the string: 1J______ Keys enabled ________ 1 = keys enable 0 = keys disable NOTE: This switch will reset itself to "keys enable" each time the unit is turned on by applying power or by executing a "P" command from RCI.
SERIAL INTERFACE L [LOAD] writes Data to the external RAM memory location Address. Data must be designated as 2 hexadecimal characters and the Address location as 3 hexadecimal characters, in the command string. I——Action Code Command String ##### │ │ Data Address M [MEASUREMENT] causes the 361T to take a measurement. N [NULL] causes a Reference measurement if either the Read button is pressed or if a measurement is being forced by use of the "M" Action Code.
CHAPTER T SIX [BAUD] is used to change the baud rate of the 361T. The unit must receive the following as the address and the action codes portion of the command string: XXT—— Action Code ———— 03 = 300 baud 06 = 600 baud 0C = 1200 baud 18 = 2400 baud 30 = 4800 baud 60 = 9600 baud After the 361T receives the first delimiter (#4 in the command string), it automatically performs a "g LF" (#5 and #6 in command string). The unit should not receive an additional "g".
SERIAL INTERFACE W [WRITE] writes Data to the Address location of the microprocessor's internal RAM memory. This action causes the 361T to replace the contents of the microprocessor's RAM location, designated by the (2 hexadecimal characters) Address portion of the command string, with 8-bits of binary data, designed by the (2 hexadecimal characters) Data portion of the command string.
CHAPTER Z SIX [DISPLAY ENABLE] is used to enable or disable the display from being updated with data that occurs from normal operation. This switch enables or disables the display by the 361T receiving the following as the address and action code portion of the command string: 1Z——— Action Code ———— 1 0 = display enable = display disable NOTE: This switch will reset itself to "Display enable" each time the unit is powered up by applying power or by executing a "P" command from RCI.
SERIAL INTERFACE Internal RAM Data Addresses The Internal RAM Data Addresses are used to access parameters not handled by action codes. The following list covers the most commonly used parameters, their addresses, and a bit map for each address. In addition, there are several notes that indicate the limitations and cautions that must be followed in using these addresses.
CHAPTER SIX External RAM Data Addresses The External RAM Data Addresses are used to access data values, reference values, and other values. The following list covers the most commonly used addresses. In addition, there are several notes that caution the user and must be followed. NAME *Memory Reset DATA PARAMETERS 1 Byte Write a 00 to address plus a "P" command to reset system. *USE THIS ADDRESS WITH CAUTION: Writing to this address will force system reset, and the unit will clear all memory locations.
SERIAL NAME Step 34,35 Step 36,27 Sequence Data Step 0 Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 Step 10 Step 11 Step 12 Step 13 Step 14 Step 15 Step 16 Step 17 Step 18 Step 19 Step 20 Step 21 Step 22 Step 23 Step 24 Step 25 Step 26 Step 27 Step 28 Step 29 Step 30 Step 31 Step 32 Step 33 Step 34 Step 35 Step 36 ADDRESS 24A , 24B 24C , 24D ORTHO 250,251 254,255 258,259 25C,25D 260,261 264,265 268,269 26C,26D 270,271 274,275 278,279 27C,27D 280,281 284,285 288,289 28C,28D 290,291 294,29
CHAPTER SIX NAME CAL HI ORTHO UV SKIP PROMPTS 6-12 ADDRESS 05A 066 700 DATA PARAMETERS , 05B , 067 2 Bytes 2 Bytes 1 Byte Write 80 for skip prompts.
361T DENSITOMETER 7. Maintenance General The X-Rite 361T is covered by a one-year limited warranty (excluding lamps) and should be referred to the factory or authorized service center for repair within the warranty period. Attempts to make repairs within this time frame may void the warranty. Always verify instrument calibration to assure proper instrument operation. Make sure all connections are properly made. X-Rite provides a factory repair service to their customers.
CHAPTER SEVEN Aperture Replacement & Cleaning APERTURE REPLACEMENT 1. Remove aperture [1] by wedging edge of aperture upwards with fingernail. 2. To reinstall aperture, insert aperture into target opening [2] making sure aperture is pressed flush against surface. APERTURE CLEANING 1. Remove aperture as described above. 2. Clean aperture with Q-tip moistened with alcohol. 3. Reinstall aperture. NOTE: When cleaning the aperture always cover the target opening.
MAINTENANCE Beam Splitter Cleaning 1. 2. 3. Remove aperture as described in "Exterior Cleaning". Clean residue from Beam Splitter [1] with dry Q-Tip. Remove dust and lint by lightly blowing air into target opening. Optics Cleaning 1. 2. 3. Cover aperture [1] with small piece of plastic. Grasp reading head assembly [2] and lift upwards. Clean residue and dust from optics [3] with Q-tip slightly moistened with alcohol.
CHAPTER SEVEN Lamp Replacement AS A ROUTINE MAINTENANCE PROCEDURE, replace the read lamp after every 1200 hours of operation. This allows approximately a half year of operation (based on an 8 hour operating shift per five days a week). Failure to do so may cause erroneous density readings. X-Rite has also provided you with an extra Transmission read lamp. This lamp should only be replaced by a qualified service repair person. 1. 2. 3. 4. 5. 6. 7. 7-4 DISCONNECT LINE CORD FROM POWER RECEPTACLE.
MAINTENANCE ALIGNMENT CHECK Set unit upright, plug line cord into wall receptacle, and turn power switch to "ON" position. 9. Locate your transmission reference (used for calibration) and center step "3" or "CAL" over aperture. (Use 3mm aperture.) 10. Look at the light coming through the round aperture. The lamp's filament will appear as a square in the middle of the aperture. 11.
CHAPTER SEVEN ALIGNMENT CHECK (continued) 12. Unplug line cord then loosen two Phillips-head screws 6 in bottom of lamp assembly. 13. Set front half of unit over edge of table, then plug line cord into wall receptacle. 14. Carefully move lamp assembly until lamp filament is centered with aperture (see Steps 9 and 10). 15. After alignment, unplug line cord and tighten two Phillips-head screws [6] in bottom of lamp assembly WITHOUT moving lamp assembly out of alignment. 16.
MAINTENANCE Fuse Replacement [DISCONNECT LINE CORD BEFORE SERVICING] 1. 2. 3. Insert flatblade screwdriver into slot of fuse cap [1]. Push in and turn counterclockwise one-half turn until fuse [2] and fuse cap pop out. Remove fuse from fuse cap and replace with same type fuse. • 115vac operation (600ma 250v 3AG Slo-blo, P/N SE24-0060) • 4.
CHAPTER 7-8 SEVEN
361T DENSITOMETER 8. Appendix Technical Specifications PARAMETER Display Measuring Range Density % DOT Area Reference Range All Except DOT +DOT (Fringe) -DOT (Fringe) Calibration Zero Slope Dot Accuracy Ortho, Visual 2,3mm aperture 1mm aperture U.V. 3mm aperture Repeatability Ortho, Visual 2,3mm aperture 1mm aperture U.V.
CHAPTER EIGHT PARAMETER Response Orthochromatic Ultraviolet Visual (optional) Color Temp. of Light Source IR Sensitivity Ambient Interference Interface SPECIFICATION X-RITE Ortho X-RITE U.V. X-RITE Visual Approx. 2850K D > 4.0 (U.V.) D decreases <.25% Bidirectional, Serial RS-232-C DTE 300, 600, 1200, 2400, Baud Rate 4800, 9600 T 90-130VAC, 50-60Hz Voltage Requirements TX 180-260VAC, 50-60Hz 80VA max Power Requirements ≤76% Operating Relative Humidity +10º to +40ºC Operating Temp.
APPENDIX Optional Equipment There are six models of the 361 Reflection Head that are available to interface with the 361T Transmission unit. Model 361G-06 Model 361GS-06 Model 361G/LP-06 Model 361E-06 Model 361ES-06 Model 361E/LP-06 Color Reflection Densitometer w/ G and T Response, 3.4mm Aperture Color Reflection Densitometer w/ G and T Response, 1.7mm Aperture Color Reflection Densitometer w/ G and T Response, 3.4mm Aperture, & Polarizing Filter Color Reflection Densitometer w/ E and N Response, 3.
CHAPTER EIGHT Interface Cables available: P/N 361-69 Transmission/Reflection Interface Cable P/N 361-83 DB25P to 10 Circuit Modular Interface Cable (Available Adaptors for 361-83 cable above) P/N 418-70 DB25P DCE (Null Modem) Interface Adaptor P/N 418-71 DB25S DCE (Null Modem) Interface Adaptor P/N 418-80 DB25P DTE (Normal) Interface Adaptor P/N 418-81 DB25S DTE (Normal) Interface Adaptor P/N 418-90 DB9P Interface Adaptor P/N 418-91 DB9S Interface Adaptor P/N 309-149 Whisper Printer Interfa
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