Amada WELD CHECKER MM-400A - Page 307

MM-400A
14. Specifications
14-2
Target Specification
Current
Measurement
accuracy
MM-400A: ± 1% of full scale (excluding sensor
error)
Conduction angle: ± 9 degrees
MB-400M/800M: ± 1% of full scale (for measurement
up to 20 kA of the RMS current)
Detection
method
Toroidal coil
MB-800K, MB-400K (Conventional 1x sensitivity coil)
MB-45F (10x sensitivity coil)
MB-800M, MB-400M (Recommended:
ISO17657-compliant)
Voltage
Measurement
range
6.00 V range: 0.30 to 6.00 V
20.0 V range: 1.0 to 20.0 V
Measurement
item
Maximum value (peak value) within the current flow
time or RMS in the interval from the start to end of the
measurement
RMS depending on the measurement mode
CYC mode:
Arithmetic mean RMS every half-cycle (original mode)
RMS of all measurement range (ISO mode)
ms mode:
Arithmetic mean RMS every 1 ms (original mode)
RMS of all measurement range (ISO mode)
ms-SHORT mode:
RMS in the interval from the start to end of the
measurement
Measurement
accuracy
± 1% of full scale (excluding sensor error)
Force
*1
Measurement
range
MA-520B
4.90 to 98.06 N, 0.50 to 10.00 kgf,
1.10 to 22.04 lbf
MA-521B
49.0 to 980.6 N, 5.0 to 100.0 kgf,
11.0 to 220.4 lbf
MA-770A
245 to 4903 N, 25 to 500 kgf,
55 to 1102 lbf
MA-522B
MA-771A
490 to 9806 N, 50 to 1000 kgf,
110 to 2204 lbf
Measurement
time
1 to 10000 ms
Measurement
item
Mean value/maximum (peak)
Measurement
accuracy
± 3% of full scale (excluding sensor error)
Detection
method
Force sensor: MA-520B/521B/522B
Current/force sensor: MA-770A/771A