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Welding power supply
Welding heads
Weld Checker
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| MB-400K Toroidal coil |
MB-800K Toroidal coil |
MB-45F Toroidal coil |
MA-522/MA-521 Applied force sensor |
Displacement sensor |
Supports single-phase AC welders, DC inverter welders, AC inverter welders, and transistor type welders.
When you turn the encoder, you can scroll the screen, move the cursor, and select items. By pressing the encoder, you can select the item that the cursor is located.
320x240 dots/4.7-inch -inch color LCD screen
Displays various welding waveforms without using an oscilloscope.
The displayed waveform can be shifted and zoom in and out in the screen. The scale can be chanced to show the whole waveform if part of the waveform went off the screen. (Pat. Pend)
You can select the language from Japanese, English, Chinese, German, French, and Spanish.
- The measured values and waveforms can be stored in a memory or transfered out to PC, for record a analysis.
- Data transfer can be done in the RS-232C to PC.
- Printing out the data can be done by the local print equipped with the device.
- The applied force and weld current can be measured simultaneously while welding (Optional applied electricity and force sensor, MA-770A or MA-771A is needed)
- Voltage signal Max.±10V) from other sensor can also be measured, since it has the external input facility.
| Model name | MM-370A | ||
| Current | Measuring range | (1)0.1 - 2.000kA (2)0.3 - 6.00kA (3)1 - 20.00kA (4)3 - 60.0kA (5)10 - 200.0kA |
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| Measured value | Arithmetic mean effective value, maximum value (peak value) |
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| Measurement accuracy | For range (1)(3)(5) ± (1%rdg+9 - 20dgt) For range (2)(4) ± (1%rdg+3 - 7dgt) *1 |
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| Voltage | Measuring range | 2 ranges, 6.00 V or 20.00 V | |
| Measured value | Arithmetic mean effective value, maximum value (peak value) |
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| Measurement accuracy | ±(1%rdg+3dgt) | ||
| Welding time | Measuring range | AC mode | DC mode |
| 50Hz:0.5 - 500.0CYC/ 60Hz:0.5 - 600.0CYC |
1 - 2000ms | ||
| Force | Measuring range | 4.90 - 98.06N(MA-520), 49.0 - 980.6N(MA-521), 490 - 9806N(MA-522) |
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| 245 - 4903N(MA-770A), 490 - 9806N(MA-771A) | |||
| Measured value | Average value/maximum value (peak value) | ||
| Measurement accuracy | ± (Load cells full scale error +2%rdg+29dgt) | ||
| Displacement (option) | Measuring range | ±30.000 (When sensor with resolution of 1μm or finer is used) |
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| ±300.00 (When sensor with resolution of 10μm or finer is used) |
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| Measured value | Displacement at end of delay time, start measuring from welding start | ||
| Measurement accuracy | ±0.05% of full scale | ||
| Conduction angle measurement | 0 - 180 degree (CYC mode only) | ||
| Number of schedules | 127 schedules | ||
| Printer | Printable items: Measurement data, waveforms, all cycles, setting condition data, screen copies, print history | ||
| Input power supply voltage | Single-phase 100 - 240VAC ±10% 50/60Hz | ||
| Power consumption | 50W | ||
| Mass | Approx. 5kg | ||
The specification and external design are subject to change without notice.
Weld Checker
Measured values can be transferred to a PC and the evaluation criteria can be changed from the PC. RS232C and RS-485 are equipped on standard
Weld checkers
Japanese, English, Chinese, German, French, Russian, Italian, Czech, Spanish, Portuguese, and Hungarian
| Model name | MM-122A | MG3 Digital | |||||||||
| Measure- ment |
Current | Measuring range | 0.010 - 0.199kA (Only when 10x sensitivity coil used) 0.100 - 1.999kA 1.00 - 19.99kA 10.0 - 199.9kA | Coil with 1x sensitivity (standard): 2, 5, 20, 100, or 500 kZ Coil with 10x sensitivity (option): 0.2, 0.5, 2, 50 kA | |||||||
| Measured value | The peak value of the total welding or arithmetic mean effective value in the measured range can be measured. | Effective value, peak value (weld time or measurement segment) | |||||||||
| Display | 4-digit digital display (7-segment LED) |
Graphic color LCD display | |||||||||
| Measuring range setting | Start | AC | 000-500 cycles (31 conditions) | DC | 0000 - 2000 ms (31 conditions) | AC | 1 - 250 cycles | DC | 1 - 2000 ms | ||
| End | (Supports 50- 250 Hz） | 0.50 - 25.00 ms(31 condition) | 1 - 250 cycles | 1 - 2000ms | |||||||
| Measurement accuracy | Effective value ± (2%rdg + 4dgt) *1, Peak value ± (2%rdg + 10dgt) | ±1.5% of full scale (including toroidal coil error) | |||||||||
| Detection method | Toroidal coil | ||||||||||
| Time | Welding- cycle / Pulsewidth |
Measuring range |
The maximum measurement duration is 2 seconds. Single-phase AC 0.5-100 cycles (50 Hz)/0.5-120 cycles (60 Hz) | AC 0.5-200 cycles | |||||||
| AC inverter type 0.5 - 500 max. cycle (depending on welding current frequency) or 0.50 - 2000ms (until half time of IP for TH) | DC 1 - 2000ms | ||||||||||
| Display | 4-digit digital display (7-segment LED) | Waveform or numeric display | |||||||||
| Detection method | Toroidal coil | Toroidal coil for MG3 Digital | |||||||||
| Conduc- tion angle |
Measuring range | 30 - 180° Maximum conduction angle within welding time | 30 - 180° maximum power On angle within entire weld time (for single-phase AC type) | ||||||||
| Measurement accuracy | ±5% of full scale | ||||||||||
| Detection method | Toroidal coil | Toroidal coil for MG3 Digital | |||||||||
| Voltage | Measuring range | - | 0.5, 2.5, 10, 50V | ||||||||
| Measured value | - | Effective value or peak value | |||||||||
| Display | - | Waveform or numeric display | |||||||||
| Display | - | AC 1-250 cycles | |||||||||
| DC 1 - 2000 ms | |||||||||||
| Measurement accuracy | - | ±0.5% of full scale | |||||||||
| Detection method | - | Voltage detection pickup | |||||||||
| Current & voltage measur- ement value |
Effective value | Cycle display: Arithmetic mean effective value for each half cycle. "msec" display: Arithmetic mean effective value per each 1msec | The effective value within either the measuring range or the weld-time duration (AC). | ||||||||
| Transistor type: Effective value from the start to the end. Capacitor type: Effective value from the start of welding to the TH. | The effective value within either the measuring range or the weld-time duration (DC). | ||||||||||
| Peak value | Maximum peak value during entire welding time | Maximum peak value within the measuring range or during welding time | |||||||||
| Pressur- ization |
Measuring range | - | 100 kN (voltage input ±10 V, 12 bits) | ||||||||
| Detection method | - | Voltage output sensors | |||||||||
| Dis- placement |
Measuring range | - | ±12mm, ±32mm (option) | ||||||||
| Resolution | - | 1.0μm | |||||||||
| Detection method | - | Linear encoder | |||||||||
| Monitoring | Welding current | Upper/lower limit 31 schedule setting. Setting range 0 to Maximum measurement range | Upper/lower limit 99 conditions. Numeric settings and envelope (cautions and warnings) | ||||||||
| Voltage across tip | - | Upper/lower limit 99 conditions. Numeric settings and envelope (cautions and warnings) | |||||||||
| Welding time | Upper/lower limit 31 schedule setting. Setting range 0 to Maximum measurement range | Upper/lower limit 99 conditions. Numeric settings (cautions and warnings) | |||||||||
| Applied force | - | Upper/lower limit 99 conditions. Numeric settings and envelope (cautions and warnings) | |||||||||
| Displacement | - | Upper/lower limit 99 conditions. Numeric settings and envelope (cautions and warnings) | |||||||||
| No-current detection | It recognise as "no-current" when the weld current value goes below the sensing thrashold or the current value is below 1.5% of FS. | It recognise as "no-current" when the current is less than 1/2 of the sensing siashold, or less than 1/2 of the starting current value. | |||||||||
| It requires the "contact-closed" signal during face applied to the work. | |||||||||||
| Status alarm display | Each dedicated lamp for upper limit, lower limit and "in-rage" will show the status. | The caution (yellow) and warning (red) lamps light up. | |||||||||
| Status alarm signal | "GOOD", "NG-H", and "NG-L" semiconductor relay | I/O | |||||||||
| Impulse setting | 0 - 9 (Sets the location for measuring pulsation welding.) | None (Set with the measurement time) | |||||||||
| Memory | - | CAccording to CF card capacity | |||||||||
| Counter | 99999 max. 5 digits | 1 - 99999999 | |||||||||
| Printer | Option (BL-58RII) | Print-out the following; the current , welding time, voltage, applied force, displacement amount, power value and amount, resistance value and their evaluation result, been measured. | |||||||||
| Print-out the following; the current welding time, evaluation result, schedule no., conduction angle and *ACS data counter value been measured and displayed. *All Cycle Schedule |
These which can be transfered by CF card; copy of the screen, waveform, parameters etc. | ||||||||||
| Step up | 11 - 9 steps | - | |||||||||
| Communications output | RS-232C/RS-485 The current, weld-time, evaluation results counter value and schedule data measured and display can be transfer in the communication facility. |
RS-232C Connects with a printer or PC. | |||||||||
| Power supply voltage | Single-phase 100 - 240VAC ±10% (50/60Hz) or 24VDC ±10% | Single-phase 90-260 VAC ±10% (50/60 Hz) | |||||||||
| Dimensions (mm) *2 | 70(W) X 246(D) X 190(H) | 279(W) X 330(D) X 135(H) | |||||||||
| Mass | 1.9kg | 5.0kg | |||||||||
| Operating ambient temperature | 0 - 40°C | 0 - 40°C | |||||||||
| Power consumption | 112W max. | 60VA | |||||||||
*1: rdg: Read value (2% of displayed measured value) dgt: One count of digital display (3dgt ; There is an error of 3 counts in the final digit.)
*2: Projections not included
The specification and external design are subject to change without notice.
Weld Checker
| Model | MA-520 | MA-521 | MA-522 |
| Measuring range | 0.2 - 9.31daN | 2.0 - 93.1daN | 20 - 931daN |
| Rated load | 9.31daN | 93.1daN | 931daN |
| Measurement accuracy | ±3% of rated load | ||
| Mass | 180g | 190g | 250g |
| Model name | MM-601A |
| Measuring range | 0.20 - 9.50kgf / 0.20 - 9.31daN (MA-520) 2.0 - 95.0kgf / 2.0 - 93.1daN (MA-521) 20 - 950kgf / 20 - 931daN (MA-522) |
| Measuement accuracy | ±3% of full scale |
| Measuring speed | Approximately four times per second |
| Display function | Decimal point and unit display: Automaticaly corrected to suit the measuring range. |
| Overload display: "OVER!!" display and intermittent buzzer | |
| Charge request display: "BATTERY" display flashes | |
| Automatic power OFF | If no key is pressed for about 7 minutes, the power goes Off. |
| External hold input | Measurement value held by external contact input |
| Analog output | Voltage output 4mV / count Load resistance 5kΩ or more |
| Sensor (option) | MA-520 / MA-521 / MA-522 |
| Power supply | Four 1.2V NiCd batteries (4.8 V) or dedicated AC adaptor, comes with 7VDC charger |
| Dimensions (mm) * | 75(W) X 30(D) X 170(H) |
| Mass | 480g (Including leather case) |
* Projections not included
The specification and external design are subject to change without notice.
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