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Display Panel Protection |
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| When an operator interface is not equipped with a level of protection that meets or exceeds the demands of its operation environment, its full range of features cannot be utilized. More importantly, the failure of an insufficiently protected unit can lead to equipment damage or, in the worst case, operator injury. This section explains the various levels of protection provided by Pro-face operator interfaces, and lists a number of important work-environment cautions. |
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| 1. Protection Features |
| Pro-face products are designed with a variety of levels of protection, levels that differ depending on the model. The standard level of front face protection used with most Pro-face products is "IP65f", equivalent to the Japanese JEM1030 (Control Equipment Protection Features) standard. Our testing has shown that a front panel designed to meet the IP65f standard provides the following protection against the ingress of water and oil. |
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| (1) |
Water Resistance
Operator interface performance was unaffected when the front face was sprayed with water at a rate of 12.5 liters per minute for a minimum of 3 minutes, from a distance of approximately 3 meters (10 feet) using a 6.3 mm diameter nozzle. |
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| (2) |
Oil Resistance
Operator interface performance was unaffected after JIS K 2241 (Japanese Industrial Standard) non-water-soluble type 2 No. 5 cutting oil (refer to p.8) was allowed to drip over the unit's front face at a rate of 0.5 liters per hour for 48 hours. |
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(Note: Unit installation gaskets must be properly attached and replaced periodically.) |
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| 2. Installation Gasket Precautions |
To ensure your Pro-face operator interface has the designated level of dust, water and oil resistance, check that the pre-installed gasket is securely attached before installing the unit.
Over time gaskets naturally become scratched and dirty and will eventually be unable to provide the specified level of ingress protection.
The degee of a gasket's deterioration will depend on the severity of its usage environment. As a result, be sure to install a new gasket periodically, or when it appears to need changing.
Generally, we suggest replacing gaskets once a year, or as soon as there are obvious signs of scratches and dirt. (Click here for further information.)
When removing a unit that is built into equipment or machinery, be sure to replace the gasket.
Also, be sure to insert the new gasket carefully into its groove in the front panel bezel, and be careful not to stretch or tear it.
When reattaching the unit, be careful not to twist or pull the gasket out of its groove. |
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Note: The following conditions may reduce the gasket's protection level.
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If the operator interface's installation surface is uneven (i.e. bent or warped). |
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If the gasket material is degraded by contact with chemicals or other substances. |
Please understand that Pro-face cannot guarantee that this gasket will provide protection equivalent to the specified standard in every type of working environment. |
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| 3. Oil Mist Precautions |
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In areas where cutting and grinding oils are used, these oils may penetrate inside equipment and machines through rear face openings. As a result, be sure to completely seal your equipment or machine to protect the Pro-face display. |
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In work areas where cutting and grinding oils are used, or where very low viscosity oil is used, airborne oil particles will often adhere to the front panel of the operator interface. Often special protective measures need to be taken when using the Pro-face unit in this type of environment. Therefore, prior to installing this unit, be sure to confirm the type of conditions that will be present. |
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Be sure to regularly wipe all oil and dirt off the unit's front panel. |
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| 4. Metal Particle Cautions |
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Metal cutting or grinding processes produce large amounts of fine metal particles that can penetrate into equipment and machines through rear face openings. As a result, we strongly suggest that you completely seal your equipment or machine to protect the Pro-face unit. |
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In areas where metal powder or particles are present in the air for extended periods of time, particles will eventually penetrate inside most equipment and machines, sometimes causing a malfunction. Therefore, avoid using the Pro-face unit in this type of area. |
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| 5. Gas Precautions |
Never use the Pro-face display in areas where corrosive gases are present. These gasses are usually present in plants where corrosive products such as hydrochloric acid (HCl), nitric acid (NOx), sulfuric acid (SO2), sulfur gas, etc. are used.
If corrosive gasses penetrate inside the GP, there is a chance that an electrical or mechanical part may fail.
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| Examples |
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Damage to hard or floppy disk drives |
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Damage to computer chips and printed circuit boards |
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| 6. Compressed Air Cautions |
| Be careful when using compressed air for cleaning, since there is a risk that the force of the air may loosen the panel's front cover sheet, making it difficult to operate the touch panel and ultimately causing the front cover sheet to peel off. To avoid this problem, use only a low level of air pressure. |
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| 7. Regular Inspection of Your Pro-face Unit |
Regular inspection of your operator interface will allow you to detect signs of potential part and device malfunctions and allow you to take corrective measures before the part or device actually fails.
It goes without saying that no part can be used forever. Even under normal usage conditions, when a part approaches the end of its service life, it will show signs of age and the chances of a malfunction will increase. Replacing parts at regular intervals or when it appears necessary helps you to minimize or eliminate part aging and part failure problems. |
For further information, please click here. |
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| Pro-face Unit Protection Ratings |
| The following levels of protection are provided by the front face of the Pro-face display. |
GP Series
| Model nos. |
Rating |
| GP-270L, GP-270S |
Equivalent to IP65f
(Front face only,
when unit is installed in a solid panel) |
| GP-370L, GP-370S, GP-377RT, GP-377L, GP-377S |
| GP-470E, GP-477RE |
GP-570B, GP-570L, GP-570S, GP-570T, GP-570VM,
GP-571T, GP-577RS, GP-577RT, GP-57JS |
| GP-675S, GP-675T |
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FP/PL Series
| Model nos. |
Rating |
| FP-570T, FP-770T, FP-775S |
Equivalent to IP65f
(Front face only,
when unit is installed in a solid panel) |
PL-5700L, PL-5701L, PL-5700S, PL-5701S,
PL-5700T, PL-5701T |
| PL-6700S, PL-6700T |
| PL-6900T, PL-6901T |
| PL-7900T, PL-7901 |
GLC Series
| Model nos. |
Rating |
| GLC-100L, GLC-100S |
Equivalent to IP65f
(Front face only,
when unit is installed in a solid panel) |
| GLC-300T |
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| Rating Details |
| The following tables explain the International Electronics Commision's (IEC) "IP" rating, and the Japan Electrical Manufacturers' Association (JEM1030) protection standard. |
IP - (a) (b) (c) |
IP---(Degree of) Ingress Protection |
(a) Degree of protection provided against solid objects
| Codes |
Degree of protection |
| 0 |
No protection against solid objects (i.e. the human body, tools, etc.). |
| 1 |
There is no risk of solid objects accidentally coming into contact with either the recharging unit or internal moving parts.
There is no risk of any solid object with a diameter over 50 mm penetrating inside the unit (i.e. a human hand). |
| 2 |
There is no risk of small objects less than 80 mm in length accidentally coming into contact with either the charging unit or internal moving parts.
There is no risk of any solid object with a diameter over 12.5 mm penetrating inside the unit (i.e. a human finger). |
| 3 |
There is no risk of the tips of solid objects such as tools and wires with a diameter or thickness over 2.5 mm penetrating inside the unit. |
| 4 |
There is no risk of the tips of solid objects such as tools and small wires with a diameter or thickness over 1.0 mm penetrating inside the unit. |
| 5 |
Protected against dust-limited ingress (no harmful deposit). Even if a small quantity of fine particles does penetrate the unit, the amount is not sufficient to disrupt normal operation. |
| 6 |
Totally protected against dust. |
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(b) Degree of protection provided against liquids
| Codes |
Degrees of protection |
| 0 |
No protection. |
| 1 |
Protected against vertically falling drops of water, e.g. condensation. |
| 2 |
Protected against direct sprays of water up to 15 degrees from the vertical. |
| 3 |
Protected against sprays of water up to 60 degrees from the vertical. |
| 4 |
Protected against water from all directions - limited ingress. |
| 5 |
Protected against low pressure jets of water from all directions - limited ingress permitted. |
| 6 |
Protected against strong jets of water, i.e. for use on shipdecks. |
| 7 |
Protected against the effects of immersion between 15cm and 1.0m. |
| 8 |
Protected against long periods of immersion under pressure. |
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(c) Degree of protection provided against oil ingress
| Codes |
Degrees of protection |
| f |
There is no risk of damage from exposure to oil drops or oil sprays in any direction. |
| g |
No oil will penetrate after exposure to oil drops or oil sprays from any direction. |
| h |
Devices can be operated even when kept submerged completely in oil. |
| c |
There is no risk of damage even if the device is used in slightly corrosive environments. |
| d |
Corrosive gases cannot penetrate into the device and the exterior surface of devices can endure extended exposure in a corrosive environment. |
| e |
Based on the following standards; JIS C 0901, JIS C 0902, JIS C 0903, JIS C 0904 and JIS C 0905 |
| w |
Unit can even be used outdoors. |
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| Cutting Oil |
Cutting oil is used in machining processes to improve cutting performance and extend tool life. These oils are designed to quickly penetrate between a fast moving cutting tool or blade and a stationary or moving workpiece. However, this penetration ability makes these oils potentially damaging to any equipment installed nearby, since this oil can also easily penetrate both connecting parts and the bond between an installation gasket and a Pro-face panel. A cutting oil or its chemical additives can even cause gaskets and bonding agents to deteriorate or swell.
The JIS (Japanese Industrial Standard) K 2241 classifies cutting oils according to their composition and characteristics. In addition, there are many other non-rated types of cutting oil currently available for a wide range of applications. Therefore, before installing your operator interface, confirm that its protection level is sufficient for the intended environment. |
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| Installation Gasket Replacement |
Normally, the deterioration of bonding agents and gaskets accelerates at high temperatures or in environments where oil mist is present.
Please understand that Pro-face cannot guarantee our unit's protection rating will remain effective for a specific period. However, this is only because work environment conditions will vary widely from customer to customer and it is impossible to accurately estimate the degree of deterioration that will occur during the use of each possible type of substance.
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