The 10A Micro-Ohmmeter Model 6250 is a rugged, low resistance tester designed for both plant maintenance and field use

Utilizing a four-lead Kelvin method, the Model 6250 is the most accurate Micro-Ohmmeter available, with results within 0.05%.

Resistance measurements are automatically calculated, taking into account the measurement value, ambient temperature, metal type and metal temperature co-efficient. Metal temperature can be manually entered by the operator or directly measured by the Model 6250 with an optional RTD temperature probe.

The Model 6250 is uniquely designed to conduct tests on both resistive and inductive material, with operator selection directly from the front panel. Three test modes are available; resistive (instantaneous test), inductive (continuous test), and auto (repetitive test). Up to 1500 measurements can be stored and printed directly to a printer of from a PC.

Features:

• Measures from 0.0001mΩ (0.1Ω resolution) to 2500.0Ω
• Test current selection of 1mA, 10mA, 100mA, 1A and 10A
• RTD temperature probe to check tested sample (optional)
• Selectable metal types
• Automatic and manual temperature correction
• EMF levels measured and eliminated in measurement
• Two programmable alarm set points
• Stores up to 1500 test results
• Selectable Inductive and Resistance test modes
• Automatic multiple test mode (multiple tests without pressing the button)
• Large multi-line electroluminescent display
• Local or remote test setup and control
• Direct printout
• Internal rechargeable batteries – conduct up to 5000 10A tests
• Rugged, double insulated waterproof case

Specs:

Measurement Range
Range	Resolution	Accuracy @ 23°C±5°C	Measurement Current	Voltage Drop
5mΩ	0.1µΩ	±(0.15% +1.0µΩ)	10A	50mV
25mΩ	1µΩ	±(0.05% +3µΩ)	10A	250mV
250mΩ	10µΩ	±(0.05% +30µΩ)	10A	2500mV
2500mΩ	0.1mΩ	±(0.05% +0.3mΩ)	1A	2500mV
25Ω	1mΩ	±(0.05% +3mΩ)	100mA	2500mV
250Ω	10mΩ	±(0.05% +30mΩ)	10mA	2500mV
2500Ω	100mΩ	±(0.05% +300mΩ)	1mA	2500mV
Temperature Measurement	3 wire 100Ω platinum RTD
Accuracy	±0.5°C
Resolution	0.1°C
Selectable Metal Type	Yes – Copper, Aluminum or Custom
Alarm Mode	Yes – 2 Alarms with High-Low trigger
Storage Memory	1500 tests, supplied with DataView® software for download and reporting
Battery	Rechargeable NIMH battery pack 6V, 8.5Ah
Battery Life: 10A	≥ 5000 tests typical
Battery Charger	120/240VAC ± 20% (45 to 400Hz)
Auto Power OFF	When battery voltage <5.0V
Overload Protection	250Vrms
Dimensions (L x W x H)	10.70 x 9.76 x 7.18” (272 x 248 x 182mm)
Weight	8.1 lbs (3.69 kg)
IP Rating	IP 54 per IEC 60529 cover closed
Altitude Operating	2000 m
Operating Temperature	14° to 131°F (-10° to +55°C) & 10 to 80% RH
Storage Temperature (without battery)	-40° to 140°F (-40° to +60°C) & 10 to 90% RH
Safety	IEC/EN 61010-1 50V CAT III Pollution 2

Documentation:

Equipment Specifications