Features and specifications 
 -1.5 ~ 250 watts power rating / s (joules) energy storage power supply, can be a single pulse or double pulse mode operation, showing an accuracy of 0.5%, the selected screen resolution is 0.1% Energy 0.6%, energy can be W / sec (J) shows the% maximum energy can also be displayed. 
 Output pulse characteristics - 128 welding procedures for the specified pulse width and polarity, respectively, to achieve this functionality, the application of the internal conversion relay, the power output of 0.001 ohm load at both ends of measuring pulse characteristics, the maximum amplitude in the zero between the measured amplitude, pulse rise time, 10% amplitude points in the measurement of pulse width. 

 Welding speed - repeat rate (Rep Rate), which is rated at a thermal power, the average per minute, the number of welding can be used to determine the average time repetition rate of up to 20 minutes, maximum intermittent welding speed ( Hit Rate) which is the intermittent power supply for non-continuous welding speed, the speed is assumed to be single-pulse mode operation. 

 Double-pulse welding - eliminating the molten metal spilled (splash), to improve the quality of welding, particularly welding plating material 
 Four welding functions - (a) basic functions; (b) double-pulse; (c) rolling spot (every welding); (d) repeat the welding 
 Using a simple "user assistance" display - this feature as one of the built-in instruction manual, quick straight knife user through the most complex work. 
 -128 Different welding procedures for welding procedures stored on the (write) a permanent memory, the serial process - up to 127 programs in the order specified by the user can link together. 
 -7 Remote program selection input for a single pole: (a) remote control options # 1 ~ # 127 welding procedures; (b) charge / discharge process to prevent; (c) Emergency stop POWER-UP procedures in any of a program -128 one, or the last application of the procedure, may be designated as the boot procedure 
 Automatic identification - identify and adjust the welding head type (pneumatic or manual), and the foot switch type (1 - or 2 - level) 
 Double welding head control - 24VAC valve actuator with double control one or two welding head and turn the ignition 
 Ignition circuit - can be single-pole, pole or light pressure ignition (pressure) switch 
 Welding procedures can be specified for each polarity of the output pulse 
 End of the buzz - the end of each welding process sound signals to indicate the operator release the foot switch 
 Output relays - two relays to disconnect / connect up to 250 mA, relay 1 and relay 2 can be used to provide status signals to external devices, relay 1 can be used to control other air welding 24VAC head, a pneumatic relay 2 to 5-50vdc signal, when used to provide status signals, these relays can be independently programmed to close; (a) starts when the 250DP; (b) after the first welding pulse; (c) s After the second welding pulse; (d) the ignition switch is turned on; (e) When the 250DP waiting for the start of welding procedures: and / or. (f) When the alarm, built-in welding counter - allows the user to control the number of welding 

 Quality and safety features 
 Ignition circuit - can be single-pole, pole or light pressure ignition switch, the internal filtering device to prevent radio frequency interference (RFI) caused by premature ignition, 250DP can be programmed to weld time 
 Before the start of the ignition switch must remain closed 0.10.20.80 milliseconds, a feature that can eliminate the error caused by the trigger switch trip, the program protection and system security - protection procedures except # 0, all data other than tampering by unauthorized persons 
 Automatic step by step - and the chain program features the combination of automatic replenishment electrode wear 
 With statistical process control (SPC) of the built-in welding (option) - by welding and data communication interfaces, to enhance process control, a variety of graphic output allows the operator to understand and analyze the data in 
 Easier, thus simplifying the welding quality inspection, details see table 991-0910 
 Power supply voltage regulator - Rated power supply voltage within ± 13% change in, keeping the set value of the capacitor voltage within ± 0.25% 
 Welding ignition circuit - the gap in the charge and the buck ignition circuit is not forbidden, to prevent the capacitor charge or discharge right before the power ignition, caused by poor welding results 
 Footswitch welding termination - If the operator before the end of welding procedures for release in the pneumatic system of the foot switch, the security features can interrupt the welding process welding 250DP 
 Line fault step-down - suddenly interrupted when the input power, this security feature allows the capacitor discharge 

 Order Note 
 Dimensions - Height: 10.50 inches (26.7cm), Length: 16 inches (40.6cm) 
 (Including the maximum projecting part) Width: 15.50 inches (39.4cm), Weight: 99.0 lbs (45.0kg) 
 Input supply voltage -100.115.208.203 V 50/50Hz, 2700 watts of charging, 25 watts standby, when the amps with 115V, 230 V, 5 amp breaker new 
 Ordering information - specify 250DP, if the line voltage is not 115 volts, add / xxx, "xxx", said line voltage, such as welding to order with a built-in monitoring device 250DP, please specify "S" suffix: the 250DPS . 
 Necessary accessories - welding head, welding head manual foot pedal, foot switch pneumatic welding head