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Table of Contents
Related Manuals for RTscan RT218
Summary of Contents for RTscan RT218
- Page 1 RT218 Integration Guide...
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Page 2: Table Of Contents
Contents Introduction ......................................2 Illumination ......................................3 Aimer ........................................3 Introduction ......................................4 General Requirements ................................... 4 ESD .......................................4 Dust and Dirt ....................................4 Ambient Environment ...................................4 Thermal Considerations ................................5 External Optical Elements ................................5 Mounting .......................................6 Housing Design ..................................... 7 Optics ........................................7 Window Placement .................................. -
Page 3: Introduction
Introduction The RT218 is an area image engine for barcode reading. It includes an illumination LED and a LASER aimer. The RT218 complies with IEC 60825-1: 2014 for laser aiming safety. LASER Compliance Statement The RT218 contains: a CMOS image sensor and its lens an LED based illumination system •... -
Page 4: Illumination
Aimer The RT218 contains a red LASER aimer to help the user to easily position the target barcode within the engine’s field of view to increase scan efficiency. The aiming pattern can be turned On or Off. It is advisable to turn it on when scanning barcodes in regular... -
Page 5: Introduction
Dust and Dirt The RT218 must be sufficiently enclosed to prevent dust particles from gathering on the lens and circuit board. Dust and other external contaminants will eventually degrade the engine’s performance. -
Page 6: Thermal Considerations
Thermal Considerations Electronic components in the RT218 will generate heat during the course of their operation. Operating the RT218 in continuous mode for an extended period may cause temperatures to rise on CPU, CIS, LEDs, DC/DC, etc. Overheating can degrade image quality and affect scanning performance. Given that, the following precautions should be taken into consideration when integrating the RT218. -
Page 7: Mounting
Mounting The illustrations below show the mechanical mounting dimensions (unit: mm) for the RT218. Figure 2-1 Note: Tolerance of dimension is ±0.15mm. -
Page 8: Housing Design
It is recommended to use baffles or matte-finished dark internal housing colors. Optics The RT218 uses a sophisticated optical system. An improperly designed internal housing or improper selection of window material can degrade the engine’s performance. Window Placement The window should be positioned properly to let the illumination and aiming beams pass through as much as possible and no reflections back into the engine (reflections can degrade the reading performance of the engine). -
Page 9: Window Material And Color
Figure 2-2 Table 2-2 Distance from the front of the engine housing (b) Minimum Angle (Tilted Window) 10mm 15mm 20mm Uncoated, minimum window positive tilt (+w) 35° 30° 28° Uncoated, minimum window negative tilt (-w) Window Material and Color Window material must be clear. Use only cell-cast plastics or optical glass. PMMA and chemically tempered glass are recommended. -
Page 10: Coatings And Scratch Resistance
Coatings and Scratch Resistance Scratch on the window can greatly reduce the performance of the RT218. It is suggested to use abrasion resistant window material or coating. The following introduces two commonly-used types of coatings: •... -
Page 11: Roll, Skew And Pitch
Three different reading angles, roll, skew and pitch are illustrated in Figure 2-6. Roll refers to rotation around the Z axis, skew to rotation around the X axis and pitch to rotation around the Y axis. For the engine’s technical specifications, please visit the RTscan website or contact your dealer. Figure 2-6... -
Page 12: Ambient Light
The RT218 shows better performance with ambient light. However, high-frequency pulsed light can result in performance degradation. Eye Safety The RT218 comes with a laser aimer. Testing has been done to demonstrate that the engine is safe for its intended application under normal usage conditions. However, the user should avoid looking into the beam. -
Page 13: Power Supply
Power Supply Do not power up the RT218 until it is properly connected. Be sure the power is cut off before connecting a cable to or disconnecting a cable from the host interface connector. Hot-plugging could damage the engine. Unstable power supply or sharp voltage drops or unreasonably short interval between power-on may lead to unstable performance of the engine. -
Page 14: Interface Pinouts
Note: please remember your device’s TXD should be connected to RXD of RT218, and RXD to TXD. The EVK is provided to help users to test and evaluate the RT218, which contains beeper & beeper driver circuit, LED & LED driver circuit, and trigger, TTL-232 to RS-232 converter, RS-232 or USB interfaces, reserved signal debugging interface, etc.
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