4B1250.00-490
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The 4B1250.00-490 is a 4B-type timing belt with a pitch length of 1250 mm and a width of 49.0 mm. Manufactured by B & R Automation as part of their 4B1 PanelWare Panels series, it is made of durable rubber and reinforced with fiberglass tensile cords. This belt offers a temperature range of -20°C to +100°C.
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Product Description:
The 4B1250.00-490 Panelware HMI by B & R Automation is a smart terminal that is suited for industrial automation. It is panel mountable to provide a stable installation in control panels. It has a white housing and an IP65-rated front panel to protect it from dust and water jets. It uses a 24 VDC power supply and has 32 KB of EEPROM memory to store data.
The 4B1250.00-490 Panelware HMI has an LCD display with 4 lines by 20 characters resolution. It incorporates a built-in LED backlight with automatic turn-off to conserve energy during inactivity. The user interface features 12 function keys with built-in LEDs and 12 numeric keys for data entry. The keys provide slide-in labeling. This enables the operators to program functions as per requirements. The product has an RS232 serial interface on COM1, but gives no electrical isolation on this port. This 4B1250.00-490 Panelware HMI provides ease of interaction by tactile keys as well as transparent display visibility in low-light environments. The backlight control assists in prolonging component life by automatically turning off when idle, saving unnecessary power.
The 4B1250.00-490 Panelware HMI has an operating temperature of between 0°C and +50°C and storage from -20°C to +60°C. It supports relative humidity from 10% to 90%, non-condensing, in operation and storage. It weighs about 0.9 lbs (0.41 kg), which makes it ideal for small installations. Physical size is not defined, but the product is optimized for space-efficient panel mounting. The 4x20-character display 1 indicates low visibility in direct light; provide sufficient ambient light for reading. Educate operators in proper usage to prevent accidental inputs, particularly in safety-related applications. Observe ESD precautions when working with internal components, if maintenance is necessary.
Frequently Asked Questions about 4B1250.00-490:
Q: Why is the 32 KB EEPROM memory significant in the 4B1250.00-490 Panelware HMI?
A: The 32 KB EEPROM memory ensures that critical data is retained even during power loss. This feature supports secure data storage in automation tasks.
Q: What advantage does the IP65 rating of the 4B1250.00-490 Panelware HMI front panel offer?
A: Its IP65-rated front panel protects against dust and low-pressure water jets. This makes the 4B1250.00-490 Panelware HMI suitable for harsh industrial environments.
Q: Can the 4B1250.00-490 Panelware HMI operate in environments with high humidity?
A: Yes, it supports 10% to 90% relative humidity, non-condensing. This ensures stable operation in variable environmental conditions.
Q: Why is slide-in labeling important for the 4B1250.00-490 Panelware HMI's function keys?
A: Slide-in labeling allows quick customization of the keys without hardware modification. It helps operators program functions easily for specific application needs.
Q: How does the LED backlight of the 4B1250.00-490 Panelware HMI improve energy efficiency?
A: The LED backlight reduces unnecessary power consumption by turning off during inactivity. This energy-saving feature supports longer operational life and lower energy costs.
