|
Diameter of electrode (mm) |
Extension length of electrode (mm) |
|
|
|
CO2 |
Ar+CO2 |
|
0.8 |
6~12 |
12~16 |
|
1.0 |
8~15 |
15~20 |
|
1.2 |
10~18 |
18~24 |
|
1.6 |
16~24 |
24~32 |
General failures and remedies of electrode oven |
||||
No. |
Failure |
Causes of failure |
Remedies |
|
1 |
The incubator cannot be heat. |
1 |
The thermal insulation indicator green lamp is ON, but the incubator indicator red lamp is OFF, the 120 DEG C thermal relay is not communicated. |
Replace the 120 DEG C thermal relay. |
2 |
All of the indicator lamps are OFF, and the incubator doesn’t heat. |
Wherein there is the short circuit in the bead wire or at the output terminal of the transformer. |
||
2 |
The AC contactor cannot be successfully picked up. |
1 |
The temperature control instrument is always low and cannot be communicated, the 10 to 11 terminals of the time relay are not communicated, and the 2 to 3 terminals of the JTX-3C relay are not communicated. |
Check and replace the appliance element. |
2 |
5A fusion chip is loosened and in bad contact. |
Tighten the upper cover of the fuse or replace the fusion chip. |
||
3 |
The startup button doesn’t react after being pressed. |
|
The stop button is not communicated, and 10 to 11 terminals of the time relay are not communicated. |
Check and replace the stop button or the time replay. |
4 |
The AC contactor sucks together but the ammeter doesn’t indicate. |
1 |
The ammeter doesn’t work. |
Measure and replace the ammeter. |
2 |
The fusion chip of the main control fuse doesn’t work. |
Measure and replace the fusion chip. |
||
5 |
At the setting temperature, the time relay doesn’t indicate. |
1 |
The temperature control instrument is always high and cannot be communicated. |
Replace the temperature control instrument. |
6 |
Trip occurs in startup. |
1 |
The null line and the ground line are connected in a reverse way. |
Check and replace the wiring position. |
2 |
Heating elements are in short circuit. |
Check and repair the short circuit. |
||
7 |
The temperature control instrument displays the number of 1. |
|
Thermal couple is in circuit breakage. |
Replace the K couple. |
General failures and remedies of dryer |
||||
No. |
Failure |
Causes for failure |
Remedies |
|
1 |
The dryer doesn’t heat. |
1 |
The red lamp is ON, the green lamp is OFF and the thermal relay is not communicated. |
Replace the thermal relay. |
2 |
The red and green lamps are ON but it cannot heat, it is the circuit breakage of the heating element. |
Connect the heating element again. |
||
3 |
The red and green lamps are OFF and cannot heat, the diode is not communicated. |
Replace the diode. |
||
2 |
New product, the rotary knob always smokes. |
|
This happens when the resistor on the relay begins to heat at the early heating times. |
It is the normal condition. |
3 |
The heating of the dryer is long and slow. |
|
The load of the secondary power supply of the welding machine is high or always in the welding status, which causes overlow voltage. |
Replace the power supply. |
4 |
After not used for months, the dryer cannot heat when it is used again. |
|
The node of the heating element is oxidized and corroded. |
Connect again. |
5 |
Bottom ring of the inner dryer looses welding and is disconnected |
|
It is caused by the electrode is vertically put into and directly falls into the dryer bottom. |
The dryer must be inclined at 45 to 60 DEG and then put into the electrode. |