MM-400A Portable or Machine Mountable Weld Monitor

MM-400A enables operators to monitor and manage key welding variables that result in changes in weld heat such as current, voltage, time, force and displacement. The compact unit supports a wide range of resistance welding technologies including AC, DC inverter, AC inverter, transistor and capacitive discharge. It features a simple and intuitive user interface and color touch panel display.

Features and Benefits

Measures Current, Force, Voltage, Time and displacement
Envelope function
Seam welding mode
ISO17657 compliant measurement for current
Built-in printer
RS232/485 output
Multi-language support
Increased productivity
Improved process control
ISO9000 data collection

Sample MM-400A Screens & Configuration Diagram

Miyachi MM-400A Portable Weld Tester Specifications

Model				MM-400A
Measurement Specification	Current	Range		1×Sensitivity toroidal coil: 0.100～2.000kA/0.30～6.00kA/1.00～20.00kA/3.0～60.0kA/10.0～200.0kA 10×Sensitivity toroidal coil: 0.010～0.200kA/0.03～0.60kA/0.100～2.000kA/0.30～6.00kA/01.00～20.00kA Shunt Resistor: 25～500A/50～1000A
	Current	Item		PEAK/RMS*2/Arithmetic mean RMS
	Voltage	Range		0.30～6.00V/1.0～20.0V
	Voltage	Item		PEAK/RMS*2/Arithmetic mean RMS
	Force*1	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)
	Force*1	Item		Mean RMS/maximum (peak)　Before welding/After welding/Constant
	Displacement*1	Range		When the SENSOR STEP setting is 1 μm: ±30.000 mm/When the SENSOR STEP setting is 1 0μm: ±300.00 mm
	Displacement*1	Item		Before welding/After welding/Constant
	Measurement Time	Current, Voltage, Displacement, Power, Resistance	AC	ms-AC CYC-AC CYC***Hz-AC LONG CYC-AC	1～5000ms 0.5～250.0CYC(50Hz), 0.5～300.0CYC(60Hz) 0.5～200.0CYC(M050: 50Hz), 0.5～300.0CYC(M063：63Hz), 0.5～2000.0CYC(M500: 500Hz) 0.5～500.0CYC(50Hz), 0.5～600.0CYC(60Hz)
		Current, Voltage, Displacement, Power, Resistance	DC	CYC-DC ms-DC SHORT ms-DC	0.5～100.0CYC(50Hz), 0.5～120.0CYC(60Hz) 1～2000ms 0.50～300.00ms(0.05ms step)
		Force - External		1～10000ms
		Seam		AC Seam: 5min(Current / Voltage)　DC Seam: 5min(Voltage)
	Conduction Angle			0～180degrees
	Units			127schedules
Body Specification	Power Supply			Single-phase 100 to 240 V AC±10% (50/60 Hz) or 24 V DC10%
	External data output			RS-232C / RS-485 / Ethernet(Protocol: TCP/IP)
	Languages			Japanese, English, Chinese, Korean, German, French, Spanish.
	Power consumption			40W(50W with printer running)
	Outer dimensions (WxDxH) (excluding protrusions)			172(W)mm×288(D)mm×266(H)mm
	Mass			Approx. 5kg
	Toroidal coil			MB-400M2/MB-800M2/MB-45F*3
	Shunt Resistor			DS 500A/100mV(25～500A) / DS 1000A/100mV(50～1000A)