Welding Environment And Safety - Kedr MIG 160GDM User Manual

f) The machine has the function of 2T/4T under MIG mode.
2T mode – press the 【Menu button】 for 5s, the function is on and the 【Main display】
shows "2T". Press the torch switch, the machine starts welding, while release the switch,
welding stops.
4T mode – Press the 【Menu button】 for 5s again, it turns into 4T mode and the 【Main
display】 shows "4T". Press the torch switch for 1st time, it goes into arc initiation current.
Release the switch for 1st time, the machine starts welding. Press the switch for 2nd time,
it goes into crater current. Release the switch for 2nd time, welding stops.
g) Adjust 【 Data adjusting knob 】 during welding can realize the synergic manipulation of
welding voltage and feeding speed, which displays in 【Main display】 . The adjustable range
is 16.9V 3.3m/min to 23.3V 11m/min 17.5V under 100% CO
19.5V 11m/min under mixed gas mode.
h) When perform welding, the display shows the real time welding voltage and current. 5
seconds later, it returns to the preset welding voltage and wire speed.
i) Release the torch switch, it stops welding. The Main display shows "HOLD" for 3 seconds.
The 【Main display】 redisplays welding voltage and wire speed.
 Malfunction display of overheating protection
The Multifunctional data display shows "-P- -EH-" and flashes continuously, the machine is not
working normally now. Only when the temperature of the welding machine falls below 55 , the
overheating malfunction would disappear, and the machine works normally, no need restart up.

4.3 Welding environment and safety

Working surrounding

a) The machine works in environment where air conditions are dry with a dampness level of
max 90%.
b) Ambient temperature should be between -10 to 40 degrees centigrade.
c) Avoid welding in sunshine or raining. Avoid water entering the machine
d) Avoid welding in dust area or the environment with corrosive gas.
e) Avoid gas welding in the environment with strong airflow.
Safety norms

Our welding machine has a protection circuit of over voltage, over current and over heat.
When voltage, output current and temperature of machine are exceeding the rated
standard, welding machine will stop working automatically. Excessive operation under over
voltage, over current or over heat may damage the machine; operator must pay attention
to followings.
a) The working area is adequately ventilated！
The welding machine is medium and small model. But the running of the machine will also
generate high currents, which natural wind circulation cannot satisfy its cooling demands.
16
Fig. 7: Wire inching display under MIG mode
mode, 15.5V 3.3m/min to
2
℃