Installation And Operator Instructions; Location And Environment; Duty Cycle And Overheating - bester 155-ST Manual De Instrucciones

Installation and Operator Instructions

Read this entire section before installation or operation of the machine.

Location and Environment

This machine can operate in harsh environments. However, it is important that simple preventative
measures are followed to assure long life and reliable operation:

Do not place or operate this machine on a surface with an incline greater than 15° from
horizontal.

Do not use this machine for pipe thawing.

This machine must be located where there is free circulation of clean air without restrictions for
air movement to and from the air vents. Do not cover the machine with paper, cloth or rags
when switched on.

Dirt and dust that can be drawn into the machine should be kept to a minimum.

This machine has a protection rating of IP21S. Keep it dry when possible and do not place it
on wet ground or in puddles.

Locate the machine away from radio controlled machinery. Normal operation may adversely
affect the operation of nearby radio controlled machinery, which may result in injury or
equipment damage. Read the section on electromagnetic compatibility in this manual.

Do not operate in areas with an ambient temperature greater than 40°C.

Duty cycle and Overheating

The duty cycle of a welding machine is the percentage of time in a 10 minute cycle at which the
welder can operate the machine at rated welding current.
Excessive extension of the duty cycle will cause the thermal protection circuit to activate.
Input Supply Connection
Check the input voltage, phase, and frequency supplied to this machine before turning it on. The
allowable input voltage is indicated in the technical specification section of this manual and on the
rating plate of the machine. Be sure that the machine is grounded.
Make sure the power available at the input connection is adequate for normal operation of the
machine. The fuse rating and cable sizes are both indicated in the technical specification section of
this manual.
Input Supply From Engine Driven Generators
This machine is designed to operate on engine driven generators.
Welding for 2 minutes.
20% duty cycle:
Break for 8 minutes.