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Product Information

Weld Checker/PULSETIG Weld Checker

Weld Checker

MM-370C
MM-122A WM-A728

"Visually" control for better weld quality.

Measurement method by toroidal coil

  • Feature
  • Specification
  • External view

Specifications

[ MM-370C ]

Model MM-370C
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
Measured value Arithmetic mean RMS or PEAK
Measurement accuracy For range (1)(3)(5) ± (1%rdg+9 - 20dgt)
For range (2)(4) ± (1%rdg+3 - 7dgt) *1
Voltage Measuring range 2 ranges, 6.00 V or 20.00 V
Measured value Arithmetic mean RMS or PEAK
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)
245 - 4903N(MA-770A), 490 - 9806N(MA-771A)
Measured value RMS or PEAK
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)
±300.00
(When sensor with resolution of 10µm or finer is used)
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
Power supply Single-phase 100 - 240VAC ±10% 50/60Hz
Power consumption 50W
Mass Approx. 5kg
  • *Specifications subject to change without notice.

[ MM-122A ]

Model MM-122A
Measurement 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
Measured value The peak value of the total welding or arithmetic mean RMS in the measured range can be measured.
Display 4-digit digital display
(7-segment LED)
Measuring range setting Start AC 000-500 cycles (31 conditions) DC 0000 - 2000ms (31 conditions)
End (Supports 50- 250 Hz) 0.50 - 25.00ms(31 condition)
Measurement accuracy RMS ± (2%rdg + 4dgt) *1,
PEAK ± (2%rdg + 10dgt)
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 inverter type 0.5 - 500 max. cycle (depending on welding current frequency) or 0.50 - 2000ms (until half time of IP for TH)
Display 4-digit digital display (7-segment LED)
Detection method Toroidal coil
Conduction angle Measuring range 30 - 180° Maximum conduction angle within welding time
Detection method Toroidal coil
Voltage Measuring range -
Measured value -
Display -
Display -
Measurement accuracy -
Detection method -
Current & voltage measurement value RMS Cycle display: Arithmetic mean RMS for each half cycle. "msec" display: Arithmetic mean RMS per each 1msec
Transistor type: RMS from the start to the end. Capacitor type: RMS from the start of welding to the TH.
PEAK Maximum PEAK during entire welding time
Pressurization Measuring range -
Detection method -
Monitoring Welding current Upper/lower limit 31 schedule setting. Setting range 0 to Maximum measurement range
Welding time Upper/lower limit 31 schedule setting. Setting range 0 to Maximum measurement range
Status alarm display Each dedicated lamp for upper limit, lower limit and "in-rage" will show the status.
Status alarm signal "GOOD", "NG-H", and "NG-L" semiconductor relay
Impulse setting 0 - 9 (Sets the location for measuring pulsation welding.)
Counter 99999 max. 5 digits
Printer Option (BL2-58PN-MYT)
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
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.
Power supply Single-phase 100 - 240VAC ±10% (50/60Hz) or 24VDC ±10%
Mass 1.9kg
Operating ambient temperature 0 - 40°C
Power consumption 112W max.
  • *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

* Specifications subject to change without notice.

[ WM-A728 ]

Model WM-A728
Toroidal coil TC-M101
Measuring current Range 100A: 0.1A - 99.9A
200A: 1A - 199A
500A: 1A - 499A
Value RMS
Measuring time Range 0.1ms to 4.99sec
Measuring voltage Range -
Value -
Accuracy -
Detecting method Dedicated toroidal coil
Number of measuring schedule 32
Power supply 85 to 250VAC, 50/60Hz Auto-switch, 2A max.
Memory EEPROM memory
Ambient temperature 0 to 40°C (No condensation)
  • Feature
  • Specification
  • External view