TEKHMANN TWI-200 B, Instruction Manual

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1.
Positive socket (+) for connecting cable with electrode holder.
2.
Negative socket for (-) for connecting cable with functional terminal.
3. Potentiometer with a scale. Allows adjusting welding current.
4. Thermostatic indicator. Indicator is off when the machine operates normally. Lit indicator means that
temperature inside the machine is exceeded and the thermic protection has been activated. The
machine is on but not powered until normal temperature is reached. After cooling the machine will start
automatically.
5. Power indicator (green color).
Machine don’t have Power switch. Smart to contact arc ignition. In
boost condition green light flash.
6. QC indicator (red color). Include 3 conditions: Over current protection, IGBT protection, Low voltage
protection.
Technical specifications
Model TWI-200 B
Rated power 5.8
кW
Rated voltage
160…250 V
Rated frequency 50 (60) Hz
Current control range 20-
200 А
Performance index 85%
Operating cycle* 65%
Power rate (cos ϕ ) 0.9
Electrodes 1.6 - 4.0 mm
Net weight/Gross weight 2.9 kg / 3.5 kg
*Operating cycle: shows the period, within which the machine can generate corresponding current. It is
expressed in %, based on 10 minutes per cycle e.g.: 65% = 6 minutes and 30 seconds of operation, 3
minutes and 30 seconds of waiting).
Installation place
Install the machine in such a way so that ventilation openings are not obstructed (forced circulation).
Do not allow aggressive steam, dust, humidity etc., inside the machine.
Connecting the machine to the supply line
Install the plug which meets standards on the feeding cable. The plug must be equipped with ground
tip, which must be connected with yellow-green cable. Prepare the receptacle which meets standards.
The receptacle must be equipped with a fuse or an automatic circuit breaker. From table 1 determine
recommended nominal of the fuse at maximum rated consumed current and rated line voltage.
Table 1
Before connecting ensure that voltage, indicated on the machine nameplate, complies with the voltage
and frequency of the mains.
Fuse nominal, A Welding current, A
Receptacle
capacity, A
Cable section, mm
16 140 16 10
16 160 25 10-16
25 180 36 16
25 200 36 16-20
25 250 36 20-25
36 300 36 25