Lamp replacement (continued)

CONTENTS

65

Notes

When the CALL button is pressed, the “Lamp

 

time” (the approximate amount of time the lamp

 

has been used) will be displayed. 39

The lamp should be replaced if the total working

 

time exceeds about 1,500 hours.

 

When the “Lamp time” is displayed as 1500 hours,

 

 

 

 

 

 

the icon

 

and a message appear. They will

 

 

 

disappear when you do some operation.

Attach the lamp cover firmly after replacing the

 

lamp. If it is not set correctly, the power will not

 

turn on.

 

 

Use a new lamp when replacing it.

The lamp is made of glass and is very fragile. Do

 

not touch the lamp with your bare hands and do

 

not jolt or damage it. Do not try to use an

 

exhausted lamp.

5

Load a new lamp.

 

 

Slide until it hits the bottom and tighten the two fixing screws.

A small amount of inorganic mercury harmful to

environment is used for the lamp. Dispose of the

exhausted lamp according to the rules of your

area.

6 3

Attach the lamp cover.

Slide the cover into place and tighten the two screws.

2 1

7

Reset the lamp timer.

 

 

Refer to the lamp instructions for resetting.

Maintenance

Page 65
Image 65
Toshiba 250, 251, TLP551, TLP550 owner manual Load a new lamp, Attach the lamp cover, Reset the lamp timer

251, TLP550, TLP551, 250 specifications

Toshiba has long been recognized for its innovation in the field of semiconductor technology, particularly in the area of optoelectronic devices. Among its extensive portfolio, the Toshiba TLP series stands out, especially models such as the TLP250, TLP551, TLP550, and TLP251. These optoisolators are designed to provide exceptional performance in various applications, including industrial controls, communication equipment, and power supplies.

The TLP250 is a high-speed transistor optoisolator that boasts a maximum data transmission rate of up to 10 Mbps. It is designed for applications where precise isolation between input and output is critical. The device employs a GaAlAs light-emitting diode, ensuring a fast response time and efficient operation. Its package includes a phototransistor, which enables it to switch high voltages and currents, making it ideal for driving loads in various circuits.

In contrast, the TLP551 offers a higher level of phototransistor isolation with a breakdown voltage of up to 5 kV. This model is well-suited for environments where electrical noise is a concern, as it provides reliable and stable isolation. With a maximum forward current of 50 mA, the TLP551 ensures that even in complex industrial settings, signal integrity can be maintained effectively.

The TLP550 is another noteworthy optoisolator, characterized by its compact size and robust performance. It also integrates a phototransistor output, which allows for a high degree of flexibility in design. This model is engineered to deliver a maximum isolation voltage of 3.75 kV, making it suitable for various high-voltage applications.

Finally, the TLP251 offers a unique combination of features tailored for demanding applications. With its high-speed response and excellent voltage gain, it is particularly advantageous in communication systems. Its ability to provide isolation while transferring data makes it an essential component for many digital interfaces.

In summary, the Toshiba TLP series, including models like the TLP250, TLP551, TLP550, and TLP251, exemplify the brand's commitment to quality and innovation in optoelectronic devices. These models are engineered to meet the rigorous demands of modern applications, offering features such as high-speed operation, significant isolation voltage ratings, and versatile output options. For engineers and designers, choosing the right Toshiba optoisolator can significantly enhance the reliability and efficiency of their electronic systems.