VB300
Optical Projector OPERATORS MANUAL
VB300 OPERATORS MANUAL
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Contents
Page Safety ...................................................................................................... 5 1 Introduction ........................................................................................... 5 2 Unpacking .............................................................................................. 6 3 Installation .............................................................................................. 7 3.1 Selecting Location .......................................................................................................... 7 3.2 Power Supply ................................................................................................................. 7 3.3 Moving the Projector into Position ................................................................................. 7 3.4 Removing Transit Straps and Screws ............................................................................ 7 3.5 Mains Connection ........................................................................................................ 8 3.6 Commissioning Checks ................................................................................................... 8 4 Description of Equipment ..................................................................... 9 5 Operation ............................................................................................ 11 5.1 Controls ......................................................................................................................... 11 5.2 Taking Measurements .................................................................................................. 12 5.3 Using the Digital Protractor ........................................................................................... 14 6 Maintenance ......................................................................................... 15 6.1 Access to Components ................................................................................................ 15 6.2 Cleaning Lenses .......................................................................................................... 15 6.3 Cleaning the Mirror ....................................................................................................... 16 6.4 Cleaning the Screen ..................................................................................................... 16 6.5 Changing the Projection Lens....................................................................................... 16 6.6 Renewing the Profile Illumination …........................................................................... 16 6.7 Renewing the Surface Illumination ……........................................................................ 17 6.8 Lubrication .................................................................................................................... 17 6.9 Latch Block Adjustment ................................................................................................ 17 6.10 Calibration ...................................................................................................................... 17 7 Specification ......................................................................................... 18 8 Spare Parts ........................................................................................... 19 8.1 How to Order Spares ................................................................................................... 19 8.2 Mechanical Parts ......................................................................................................... 19 8.3 Electrical Parts .............................................................................................................. 19 9 Wiring Diagram ..................................................................................... 20
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Safety
Main Voltage
Main voltage is present inside the screen housing and a 110V supply inside the profile main body. Access must be restricted to authorized and qualified personnel. Switch off and disconnect the main supply before gaining access to the internal equipment. Before switching on the projector for the first time, check the main voltage setting as detailed in Section 3 - Installation .
1 Introduction
This manual applies to the Starrett VB300 Optical Projector which is supplied with the following equipment:
LED readout .
Operating instructions for the LED readout are given in this manual. Operating instructions for the digital protractor are given in this manual. This manual deals with installation of a projector fitted with an edge detector.
Digital protractor .
Edge detector (optional) .
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VB300 OPERATORS MANUAL
2 Unpacking
Open the packing case and remove loose items and packing material. Referring to the packing list, identify the following items before discarding the packing material:
Optical Projector
The projector is usually supported on a wooden base.
Glass Plate and Screw
For the work stage.
Mounting Bracket and Screws
For fitting DRO on arm.
Main Supply Cable
Screen Clips (4 units)
Edge Detector (if ordered)
The edge detector will be fitted over the projector screen.
Additional Lenses
If ordered.
Accessories (if ordered)
For example work holding equipment, and projector stand.
WARNING: Before attempting to move the projector, refer to Section 3 - Installation - 3.3 moving the Projector into position .
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3 Installation
3.1 Selecting Location The projector is designed for use in a normal workshop environment, but should be sited as far away as possible from sources of grinding grit, oil mist and vibration. Choose a convenient location with a firm, level floor, where the screen will not be subject to glare from sunlight or artificial lighting. Make sure that a suitable mains supply is available, (see below). The projector should be mounted on a bench, or on the optional stand supplied, so that the controls will be easily accessible. Note: The bench must be firm, flat and level. The projector mounting feet are factory set on a flat, level surface, and adjustment is not recommended.
3.2 Power Supply
A main supply of the correct voltage is required.
WARNING: Check the main voltage setting before connecting the main supply (see 3.5 - Mains connection).
3.3 Moving the Projector into Position (Figure 1) Pull out the lifting bars from the base and lift the projector using suitable equipment. The weight of the unit is approximately 123kg. CAUTION: Do not attempt to lift the unit by the screen housing.
Fig. 1
3.4 Removing Transit Straps and Screws
The transit straps are red.
CAUTION: The transit strap and screw must be removed before any attempt is made to move the workstage or to use the projector.
Fig. 2
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VB300 OPERATORS MANUAL
3.5 Mains Connection WARNING: A secure earth connection must be provided.
The cable color code is as follows: Brown: Live Blue: Neutral Green/Yellow: Earth
The main voltage is factory set to the correct value for the local supply. Please check that local supply is the same as voltage label on rear of Projector (Fig 3).
Fig. 3
3.6 Commissioning Checks Make the following checks before putting the projector into service, referring to Section 5 - Operation as necessary:
1. Make sure that the projector is secure and level on its bench or stand.
2. Fit a work piece securely to the workstage.
3. Switch on the power supply.
4. Check that the LED readout is working.
5. Switch on the profile illumination, and turn the focus (Z-axis) hand wheel to bring the work piece into focus. Check that the screen image is satisfactory.
6. Switch on the surface illumination and check that light turns on.
NOTE – Do not look directly at the Surface Illumination light source.
7. Release the latch block on the X-axis slide, check that the slide moves freely, and apply the latch.
8. Turn the X-axis and Y-axis hand wheels and check that the workstage moves freely.
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4 Description of Equipment
The Starrett VB300 Optical Projector is designed for 2-dimensional optical measurement of profiles and surface features of parts.
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2
3
7
4 5
6
The projector comprises the following main items:
1. Screen Housing
The Screen Housing contains the projection lens and mirrors.
2. LED Readout
The LED readout is displaying the measurement of X and Y axes, and rotation angle.
3. Projection Lens
Projects the image on to the screen via the mirror in the screen housing. A range of lenses is available; for details see Section 7 - Specification.
For changing lenses see Section 6 - Maintenance.
4. Projector Body
Contains the transformer, Surface Illumination Assembly, Surface illumination Power Supply Unit and Profile Power Supply Unit. Access is through maintenance hatch located at the rear.
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VB300 OPERATORS MANUAL
5. Workstage
Movable in the X and Y axes for measurement, and in the Z axis for focus, with a single dovetail slot for fitting work holders w ith angular clamping screws.
6. Projector Base
Houses the knee assembly and the Profile Illumination Assembly
7. Surface Illumination Light
LED Lighting is use via a lens reflecting mirror from the surface illumination. LED’s have a long life time up to 60 Directed through precision optics and mirrors to the surface of parts, providing cleaner, sharper light and outstanding imagery of the surface ,000 hours as well as low power consumption.
Fig. 5
X50 Reflecting Mirror
Fig.
4
X10 Reflecting Mirror
Surface Illumination
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5 Operation
5.1 Controls
1
2
4
3
8
5 7
7
6
Fig. 6
1. Screen
Glass screen, which overlay clips mounting on.
2. Angular Adjustment Handwheel
For rotating the screen, for angular measurement.
3. LED Readout
Displaying the measurement of X and Y axes, and rotation angle.
4. Switch Panel
Rocker switches for POWER on/off, the SURFACE illumination lamp, and the PROFILE illumination lamp with HIGH/LOW settings.
5. Latch Block
Quick-release control for moving the workstage along the X-axis and Y-axis. Lift the handle to release the latch, move the workstage to the required position, and lower the handle. (Use the X & Y axis handwheel for fine adjustment).
Fig. 7
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VB300 OPERATORS MANUAL
6. Focus Handwheel
Moves the workstage along the Z-axis for focusing.
7. X & Y Axis Handwheel
For fine adjustment of the workstage along the X & Y-axis.
8. LED Surface Illumination
Provide surface illumination for measuring surface features of flat components. For the optimum illumination, switch on surface illumination on front facia and adjust surface variable dial until best definition is observed. For components with a directional surface finish (such as ground faces), the surface texture should be vertical to give the brightest image on the screen.
5.2 Taking Measurements
1. Secure the component to the workstage with a suitable work holder.
2. Turn on the POWER switch.
3. Turn on the PROFILE lamp switch, and turn the focus control to produce a sharp image on the screen.
4. Refer to the below for setting up the LED readout and taking measurements.
LED readout: Operating panel as shown:
1 Angle value display 2 Incremental/Absolute angle toggle key 3 Angle value Zero key 4 Mode toggle key`
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5 Metric/Inch toggle key 6 RS232 serial port data output key
7 X-axis value display 8 Y-axis value display 9 X-axis Zero key 10 Y-axis Zero key
Incremental/Absolute angle toggle key Absolute coordinates: origin at 0. Incremental coordinates: origin at absolute coordinates but, can be zero at any time. Mode toggle key. Press and hold for 3 seconds to switch between degrees and minutes and decimal degrees. Normally, the displayed angle will increase 90 degrees by pressing this key each time. The maximum value is 360 degrees. This LED readout has RS232 serial port transmission function, and it can be used in two ways. The first: external equipment can send the hexadecimal data to this LED readout through RS232 serial port, after receiving this signal, the LED readout will transmit and send displayed data through this serial port. The second: press the “SEND” key on the operating panel, the LED readout will send data through RS232 serial port. The RS232 serial port’s input/output specifications are as follows: Baud: 9600 Stop bit: 1 bit Data bits: 8 bits Start bit: 1 bit Parity bit: none Output data is provided in ASCII format as follows: PXxxxxxxxxYxxxxxxxxZxxxxxxCR Of which: PXY is identifier, x is symbol and data, and CR is terminator.
Refer to 5.3 - Using the Digital Protractor for using the protractor.
Use the manual controls as required: Linear measurements
X- and Y-axis hand wheels
Angular measurement
Angular adjustment control and digital protractor
Surface features
Surface illumination
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VB300 OPERATORS MANUAL
5.3 Using the Digital Protractor
Incremental and Absolute Measurements
Pressing the INC ABS button will cause the display to change between indicating the incremental and absolute count. The incremental count is indicated by illumination of the INC indicator to the top of the INC ABS button.
Zeroing the Display
Pressing ZERO key will zero the absolute or incremental display, depending on which type of display is selected, leaving the other display unaffected. For example with ABS selected, pressing ZERO key will zero the absolute display. The incremental display can be recalled by selecting INC. To zero the incremental display, select INC and press ZERO key.
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6 Maintenance
6.1 Access to Components (Figure 8) WARNING
Main voltage is present inside the screen housing and a 110V supply inside the profile lamp cover supplying the cooling fan. Access must be restricted to authorized and qualified personnel. Switch off and disconnect the main supply before gaining access to the internal equipment. The access panel located at the rear of the support column (1) gives access to the Surface illumination, the transformer, Surface and Profile Illumination Power Packs and Metlogix M2 Interface Box if fitted.
Fig. 8
1
6.2 Cleaning Lenses CAUTION - Do not use polishes, or window cleaning aerosols and liquids for cleaning lenses. Do not touch the inner surfaces, (those facing away from the work piece), of the projection or condenser lens. The projection lens is the most critical; a finger mark on the inner surface will degrade the quality of the projected image.
Remove any accumulated dust with a photographic lens brush.
Remove any grease or finger marks with a new photographic cleaning tissue, which may be moistened with methanol if necessary.
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VB300 OPERATORS MANUAL
6.3 Cleaning the Mirror CAUTION - The mirror should be cleaned as infrequently as possible. It is recommended that cleaning is performed by service engineers.
Do not place fingers on the surface of the mirror.
If necessary, remove loose dust with a photographic lens brush.
If necessary, remove grease and finger marks with surgical quality cotton wool moistened with methanol. Apply the cotton wool lightly, then polish the surface with clean dry surgical quality cotton wool.
CAUTION - Do not use force.
6.4 Cleaning the Screen CAUTION To avoid damaging screen markings, do not use excessive pressure when cleaning screen.
Do not use solvents for cleaning the screen; they may remove screen markings.
Clean the screen with anti static, alcohol based glass cleaner, (e.g. as used for VDU screens, notepads, photocopier glass etc.) using a clean, soft cloth. The screen should dry free from smears.
6.5 Changing the Projection Lens CAUTION - Do not touch the surfaces of the lens.
The lens is secured by a bayonet fitting. Rotate the lens anti-clockwise and withdraw it.
Fit the replacement lens, rotate it clockwise until it is secure, and check that the two red spots are aligned.
6.6 Renewing the Profile Illumination
Profile illumination uses long life LED lighting. In the event of the LED lighting failing, please contact Projector Dealer or Technical Service. LEDs are one of the most reliable light sources in the world today. The LED’s used LEDs have passed a rigorous suite of environmental and mechanical stress tests, including mechanical shock, vibration, temperature cycling and humidity, and have been fully qualified for use in extreme high power and high current applications.
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With very low failure rates and median lifetimes that are well above 60,000 hours.
LEDs help reduce power consumption and the amount of hazardous waste entering the environment. All LED’s are RoHS compliant and free of hazardous materials, including lead and mercury.
6.7 Renewing the Surface Illumination
Surface illumination uses long life LED lighting. In the event of the LED lighting failing, please contact Projector Dealer or Technical Service.
6.8 Lubrication
Periodically lubricate the slides with light oil.
6.9 Latch Block Adjustment
The tension of the latch block on the X-axis slide latch may require adjustment after a period of use. If necessary, please contact Starrett.
6.10 Calibration
Have the machine calibrated yearly for optical size and mechanical deviations. (Contact Starrett or an authorized distributor for details of this service).
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VB300 OPERATORS MANUAL
7 Specification
Overall dimensions Width
420mm (16.54in) 1100mm (43.3in)
Height
Depth
770mm (30.3in)
Weight
123kg (271lb)
Workstage
Construction
Single dovetail Aluminum hard anodized top plate
Top Plate Size
225 x 225mm (8.86 x 8.86in)
Horizontal Travel Horizontal Travel
(X-axis ) 100mm (4in) (Y-axis) 100mm (4in)
Focus travel
(Z-axis) 90mm (3.5in) max.
Max Load Capacity
5kg
Projection Lenses Mount
Single Lens (bayonet fitting)
Options
x10, x20, x25, x50
Lens
Working Distance
x10 x20 x25 x50
78mm 76mm 70mm 50mm
Electrical
Voltage Input
110, 220, 230, 240, 250V AC 50/60 Hz
Input
Standard power socket
Light Sources Profile illumination Surface illumination
LED SST-90 Series, Over 100 lumens per watt at 3.15A LED SST-90 Series, Over 100 lumens per watt at 3.15A
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8 Spare Parts
8.1 How to Order Spares
Contact your local dealer, or contact Starrett by telephone, fax or e-mail: Starrett Tools (Suzhou) Company Limited Suzhou Industrial Park
339 Su Hong Zhong Road Suzhou, Jiangsu Province P.R. China 215021
Tel: 86 512 6 741 1940 Fax: 86 512 6 741 5697 E-mail: Suzhou_order@starrett.com.cn
8.2 Mechanical Parts
Description
Part No
Type STD STD
Digital Screen (glass only)
9G01
Linear Transducer Scale (X/Y-axis) 100mm
27VB10 30Z110C 30Z120 30Z125 30Z150 BR-1004 BR-1011
x10 Lens Assembly x20 Lens Assembly x25 Lens Assembly x50 Lens Assembly
Optional Optional Optional Optional
Mirror Mirror
STD STD STD
Overlay Clips (4)
0DS23
8.3 Electrical Parts
Description
Part No
Type STD STD STD STD STD STD
Power/Neon Switch
5H17 5H07 8E02 7E01 7E04 QA09
Profile High/Low Switch Surface Illumination Switch
Transformer 115/240V
Power Entry socket
RFI Filter Fuse 6.3A
9J03
STD
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9 Wiring Diagram
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