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2)
Ambient temperature range between -10℃ to 40℃
3)
Do not operate cutter in sunshine or in the rain to prevent the ingress of water or rainwater.
4)
Do not operate cutter in the environment with dust or corrosive gas.
5)
Do not perform gas protective welding in the environment with strong air flow.
2. Keys to Safety
This cutter is equipped with protection circuits for over voltage, over current and over heating. System will shut
down if network voltage, output current and inside temperature exceed setting value. Cutter will be normal after
relevant phenomenon is normal. Indicator lamp for fault will be off and cutter is normal while cut off power and
then turn it on for over current condition. Excessive operation may damage cutter as well (e.g. voltage is higher),
therefore you must be in accordance with following:
1)
Good ventilation!
This cutter is small one. During the operation, nature ventilation may not meet the cooling requirements of cutter
due to the larger current. In order to ensure good ventilation, operator must ensure air vent is not covered or
blocked and the distance between cutter and surrounding objects should be not less than 0.3 meter. Above items
are important for the operation and service life of cutter.
2)
Do not overload!
Operator should observe the max. allowable load current (relative to duty cycle range) and maintain cutting
current not greater than max. allowable load current. Over current may shorten service life of cutter obviously or
even burn it out.
3)
Do not over voltage!
Power voltage listed in "main performance parameters list". Generally, automatic compensation circuit in cutter
may maintain rated output power required for normal operation. It may not meet the output power required if
voltage is too low, however, it may damage cutter if power voltage exceeds power voltage. Operator must observe
above condition and take proper preventive measures.
4)
Each cutter is equipped with a grounding bolt behind machine and grounding mark. Select a cable with the
section of not less than 4 mm2 to discharge static electricity or prevent electric leakage for grounding of
cutter before operating.
5)
Cutter will enter into protection status and stop operating if it exceeds the standard duty cycle range. It
indicates that excessive heat activates the temperature control switch to stop operating of cutter, and red
indicator lamp is on at front panel. During this condition, do not remove power plug and maintain cooling fan
inside to operate to cool the power device. If yellow indicator lamp is off, it indicates that temperature is drop
to normal range, system is back to normal.
VII. Routine maintenance and precautions
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