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v0.7.30© 2026 Onmeas Ltd.
AT51X Series
8-Channel Parallel DC Low Resistance Tester
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Multi-Channel DC Low Resistance Tester
AT51X 系列
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AT51XSeries

8-Channel Parallel DC Low Resistance Tester

Contains 2 productsCategoryMulti-Channel DC Low Resistance Tester

The AT51X8 is a newly designed high-precision, wide-range multi-channel resistance tester with parallel measurement, capable of testing eight resistance channels simultaneously.

It is controlled by a high-performance ARM microprocessor. Its 3.5-inch true-colour LCD can display eight resistance values simultaneously, and each channel can have its own comparator setting.

For automated equipment it can use RS-232C and HANDLER interfaces to output OK/NG signals, improving automated production testing capability.

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Specifications

ParameterAT51X2AT51X8
Technical Parameters
Number of Channels2 channels (Parallel measurement)8 (parallel measurement)
Measurement ParametersDC Low Resistance
Basic Accuracy0.05%
Measurement Range1μΩ~30kΩ
Signal SourceMaximum Current1μA~1A
Current ModeAuto
RangeAuto range, Manual range, Nominal rangeAuto, Manual, Nominal
Measurement Speed30ms/channel (Manual range)30ms/channel (manual range)
Display Results2 channels direct reading8-channel direct reading display
Maximum Reading30,000
CalibrationFull-range short circuit zero calibrationFull-range short-circuit zeroing
Comparator2 channels independently configurableIndependent setting for 8 channels
Trigger ModeInternal trigger, External trigger, Manual trigger, Remote triggerInternal, External, Manual, Remote trigger
Temperature CompensationAccuracy: 0.2°C, Measuring range: 0~80°CAccuracy: 0.2°C, Range: 0~80°C
Test Terminals4-terminal shielded (including 2 sense terminals and 2 drive terminals)4-terminal shielded (2 sense + 2 source)
Contact Check FunctionSupported
General Parameters
DimensionsInstrument DimensionsApprox. 216×88×323 (W×H×D) mm
Package DimensionsApprox. 400mm × 200mm × 400mm-
WeightNet WeightApprox. 5kg
Gross WeightApprox. 6kg-
Power RequirementsVoltage: 220VAC, Frequency: 50Hz, Power: 20VA220VAC, 50Hz, 20VA
InterfaceRS-232C interface (SCPI command set), HANDLER interface (PLC interface), USB interface, Temperature compensation interfaceRS-232C (SCPI), HANDLER (PLC), USB, Temperature Compensation
OtherSupports SCPI/Modbus protocol, true-color LCD display, adjustable resistance upper/lower limits, temperature compensation function, keyboard lockSupports SCPI/Modbus protocol, true-color LCD display, adjustable resistance upper/lower limits, temperature compensation, keyboard lock

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Series Products

2-Channel Parallel DC Low Resistance Tester
AT51X2

2-Channel Parallel DC Low Resistance Tester

CategoryMulti-Channel DC Low Resistance Tester
8-Channel Parallel DC Low Resistance Meter
AT51X8

8-Channel Parallel DC Low Resistance Meter

CategoryMulti-Channel DC Low Resistance Tester