The Resanta SAI machine is designed for electric arc welding. The unit was developed in Latvia, but production is located in China. It is successfully used both at a professional level and for domestic purposes. For welding, they buy piece electrodes with a special coating.
All operation of the device is carried out manually. Resanta SAI 190 single-phase welding inverter is connected to an ordinary network with a voltage of 220 V, at a current frequency of 50 Hz. It is easy to set up and use, which made it possible for the device to gain great popularity among not only specialists with extensive experience, but also amateurs.
Functionality and operating features of the Resanta 190 device
The Resanta SAI welding inverter circuit is based on converting voltage with an alternating current of 50 Hz into a direct component. The constant is then converted back into a high-frequency variable. A pulse width modulator is installed that regulates the welding current. The welding inverter Resanta SAI 190 is equipped with overheating protection. When it is triggered, a special light on the panel lights up, indicating that the working cables need to be checked for short circuits. Afterwards, work with the device stops. Without disconnecting it from the network, time is given to cool down.
Resanta is a device that includes the Anti Stick function (protection against electrode sticking) and Hot Start (this allows you to quickly and efficiently start the welding process). Both of these options make the job easier for a beginner. They also increase the quality of the work done, its efficiency and are able to save energy.
Circuit and faults
Below we have attached several images with SAI 190 diagrams. Open them in new tabs to view them in full resolution.
And this is a list of the most common malfunctions that occur during operation of the SAI 190. They can be corrected on their own. If more serious damage occurs, we recommend contacting a service center.
Advantageous differences
Advantageous distinctive features:
- Increased reliability. The unit has the ability to have a stable and long service life. The inverter welding machine is equipped with a high-quality metal housing that can protect the device from external damage;
- Convenience over current control. To ensure high-quality seams, the current is adjustable in the range from 10 to 190 A;
- Easy to transport. A special belt allows you to easily carry the device from place to place.
- Does not require constant maintenance;
- High level of productivity;
- Ability to carry out high-quality welding during network fluctuations. All parameters set for the welding process will not be adjusted against this background.
Instructions for using the welding machine
There are no special requirements for the household electrical network to connect the inverter. The device is grounded through the connection cord, so the power socket must be grounded when connecting the SAI 190 Resanta welding machine. The instructions recommend installing circuit breakers of at least 16A for connection.
Do not use devices that produce a lot of dust near the device, for example, an angle grinder, a gasoline or electric saw, or a grinder. The switched on unit, even if it is idling, must not be covered or create other obstacles to the operation of the cooling system.
According to safety instructions, it is prohibited to weld in the rain or in very wet areas.
If you bring the inverter into a warm room from the cold, then turn it on no earlier than after a couple of hours necessary to dry the condensate.
What is included?
Upon delivery, you receive the Resanta SAI 190 PN inverter itself, a 2-meter cable with an electrical holder, a product passport, a 1.5-meter cable and a grounding terminal.
Peculiarities:
- large depth of the weld pool;
- possibility of gradual change of current indicators;
- power transistors, which are produced taking into account modern technologies, have made it possible to lighten the weight of the device;
- during operation, metal does not splash in large quantities;
- works well during network fluctuations.
Technical characteristics of Resanta 190 PN:
- Arc voltage - 27 V;
- Weight - 4.7 kg;
- Size - 15 x 30 x 37 cm;
- The value for the maximum current in operation is 25 A;
- Network voltage - 220 V;
- Housing protection - lP21;
- Cooling - air;
- Electrode diameter - 5 mm;
- Idling - 80 V;
- Consumption - 5 kW.
Characteristics and Features
The inverter welding machine SAI model 190 can be used in conjunction with electrodes with a diameter of up to 5 mm. The maximum welding current that can be squeezed out of this device is 190 Amperes. At least according to the manufacturer
