Examined a ELO Accutouch screen that is integrated with a computer in a CNC Wire Bender machine. The front layer had a cut in the clear cover layer, screen is still functional.
AccuTouch Five-Wire Resistive Touchscreens
Elo developed AccuTouch technology with the harshest environments in mind, so it is no wonder that it excels in reliability, durability, and expected product life. AccuTouch can withstand environmental conditions such as liquid spills, liquid splashes and washdown, these screens are the most contamination-resistant available. We deliver drift-free operation for a lifetime of 35 million finger touches. Our customers who purchase our AccuTouch components enjoy five-year limited warranty.
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* Data sheet (204K)
* Part Numbers
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Benefits
Five-wire resistive is the most accurate and reliable touchscreen technology. Elo, the inventor of resistive technology, takes five-wire resistive several steps further with its proprietary AccuTouch touchscreens.
* Stable, drift-free operation
* Broad input flexibility
* Contamination resistance
* Accuracy in high-use applications
* Long product life
* Meets NEMA 4/4x/12 and IP65 standards
* Find replacement part numbers for T border AccuTouch to Z border AccuTouch.
* Find replacement part numbers for Non-RoHS AccuTouch to RoHS AccuTouch.
* Find replacement part number for the obsolete and discontinued AccuTouch.
Specification
The AccuTouch five-wire resistive touchscreens use a glass panel with a uniform resistive coating. A thick polyester coversheet is tightly suspended over the top of the glass, separated by small, transparent insulating dots. The coversheet has a hard, durable coating on the outer side and a conductive coating on the inner side.
AccuTouch Specifications
When the screen is touched, the conductive coating makes electrical contact with the coating on the glass. The voltages produced are the analog representation of the position touched. The controller digitizes these voltages and transmits them to the computer for processing.
AccuTouch five-wire technology utilizes the bottom substrate for both X and Y-axis measurements. The flexible coversheet acts only as a voltage-measuring probe. This means the touchscreen will continue working properly even with non-uniformity in the coversheet’s conductive coating. The result is an accurate, durable and reliable touchscreen that offers drift free operation. AccuTouch screens are sealed against contamination and moisture. This prevents wicking of fluid between the coversheet and glass.
Elo offers enhanced, improved and AccuTouch True-flat configurations. Enhanced AccuTouch and improved AccuTouch touch screens have a flat flexible cable that is soldered to the glass. There is a bump where the cable attaches that is typically 0.010″ (0.25 mm) high. AccuTouch True-flat touch screens use a flexible printed circuit cable that is attached to the glass using anisotropic film to eliminate the cable bump and enable true flat application.
Enhanced AccuTouch
Construction
AccuTouch diagram
Environment
Temperature
* Operating: -10°C to 50°C
* Storage: -40°C to 71°C
Relative Humidity
* Functional operating limits: 90% RH at max 50°C
* Functional storage limits: 90% RH at max 50°C for 240 hrs, noncondensing
Hardcoat Pencil Hardness
* Enhanced AccuTouch: meets pencil hardness 3H per ASTM D3363.
Improved AccuTouch
Construction
Improved AccuTouch construction diagram
Environment
Temperature
* Operating: -10°C to 60°C
* Storage: -40°C to 71°C
Relative Humidity
* Functional operating limits: 90% RH at max 60°C
* Functional storage limits: 90% RH at max 60°C for 240 hrs, noncondensing
Hardcoat Pencil Hardness
* Improved AccuTouch: meets pencil hardness 3H per ASTM D3363.
AccuTouch True-flat
Construction
TrueFlat AccuTouch diagram
Environment
Temperature
* Operating: -10°C to 50°C
* Storage: -40°C to 71°C
Relative Humidity
* Functional operating limits: 90% RH at max 50°C
* Functional storage limits: 90% RH at max 50°C for 240 hrs, noncondensing
Hardcoat Pencil Hardness
* AccuTouch True-flat : meets pencil hardness 4H per ASTM D3363.
Accuracy Over Time
AccuTouch touchscreens enjoy long-term, drift-free operation from industry leading glass substrate processing techniques. The proprietary AccuTouch “Z border” electrode pattern is not only very narrow and produces outstanding linearity, but the frit pattern and drive trace lines are fired into the surface of the glass substrate, becoming stable and permanent after firing. The linearity characteristics of the glass, which establishes the linearity of the touchscreen, will also not change for the life of the product.
AccuTouch Five-Wire Resistive Touchscreens
Durability
An enhanced, scratch-resistant hardcoat gives AccuTouch touchscreens unparalleled protection against damage, even in the harshest industrial environments. AccuTouch True-flat is at the leading edge with its 4H coversheet hardness rating. Elo touchscreens have been operationally tested to over 35 million touches in one location with a stylus similar to a finger, making them ideal for heavy-usage environments.
Contamination Proof
AccuTouch touchscreens are the most contamination-resistant screens available, as they are sealed against contamination and moisture. AccuTouch does not have a permanent venting hole. This prevents fluid ingress through the air vent or along the edges due to capillary action if the outer seal to the display degrades over time.
Optics of AccuTouch
AccuTouch touchscreens provide high light transmission, because the coatings on the glass and coversheet are ITO (indium tin oxide). ITO coatings are extremely transparent and offer the electrical properties required for resistive touchscreens.
Excellent Cable Construction and Attachment
Even the AccuTouch cabling system is unique. It is copper soldered to the fired-on electrode traces pattern, has integral polymer strain relief, uses a copper flex circuit as opposed to ink (extension of coversheet), is low resistance so the cable length does not upset the design of the touchscreen, and importantly, may be folded and creased.
Complete Touch Solution
Screen, controller or chip, software driver TE Touch Solution develops all Elo screens, controllers, chips, and software drivers in-house and are tested together for optimum performance.
Experience of the Leader in Touch
Elo invented and perfected resistive touchscreens. For nearly 40 years, Elo AccuTouch resistive touchscreen technology has led the industry with the largest application and experience base of any manufacture.
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Trouble-shot the “SRAM Parity System Error 915″, PMC user files were corrupted so I had to perform a CNC entire memory CLEAR Procedure. Then I proceeded to entire manually via keypad the original system variable, parameters, servo variables for the 5 axis (X,Y,U,V,Z), Pitch error data, PMC variables. It’s an important task that is long and tedious to ensure that no errors occur. Next the machine zero point for all 5 axis had to be entered. As well the machine origin reset procedure had to be re-entered since it had been lost as well. The 4 D cell batteries that backup the axis encoders origin information were replaced at the same time.
