Cầu đo điện trở 1 chiều, máy đo điện trở tiêp xúc Seaward DO4002 Digital Micro-Ohmmeter

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Cầu đo điện trở 1 chiều, máy đo điện trở tiêp xúc Seaward DO4002 Digital Micro-Ohmmeter

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Cầu đo điện trở 1 chiều, máy đo điện trở tiêp xúc Seaward DO4002 Digital Micro-Ohmmeter


Seaward DO4002 Specification
Measurement: 4 Terminal Kelvin / Thomson principle eliminates errors due to lead resistance.
Display: 15mm LCD 4000 count with automatic decimal point and polarity indication
Ranges: 6 automatic or manual selection with LED indication
Terminals: 4mm safety sockets
Working temperature: 0°C to +45°C rel. humidity 80% max. non-condensing
Storage Temperature: -20°C to +60°C
Safety: EN 61010-1 EMC - EN 61236
Dimensions: 215mm x 130mm x 55mm (W H D) approx
467mm x 374mm x 216mm packed in carton
Mass: 0.8kg approx
Zero: Button to null measurement offsets
Protection: 415 Vrms maximum at the measuring terminals will blow internal protection fuse
Calibration: Digital pass code protected
Battery: Removable pack with 5 1.5V non-rechargeable batteries. Separate rechargeable pack, charger and docking station as optional extras
Resistance Measurement:
Range Resolution Typical Current Accuracy @ 20°C ±5°C 1 year Temperature Coefficient/°C
4k Ω 1 Ω 100µA ±(0.05% Rdg +0.02% FS) 30ppm Rdg + 1ppm FS
400 Ω 100m Ω 1mA ± (0.05% Rdg +0.02% FS) 30ppm Rdg + 1ppm FS
40 Ω 10m Ω 10mA ± (0.05% Rdg +0.02% FS) 30ppm Rdg + 1ppm FS
4 Ω 1m Ω 10mA ± (0.05% Rdg +0.03% FS) 30ppm Rdg + 4ppm FS
400m Ω 100µ Ω 10mA ± (0.05% Rdg +0.05% FS) 30ppm Rdg + 25ppm FS
40m Ω 10µ Ω 100mA ± (0.05% Rdg +0.1% FS) 30ppm Rdg + 25ppm FS
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@ 2016 NAB