4300C Programmable Micro-Ohmmeter

$6,050.00

The 4300C is the perfect instrument for tackling ultra-low resistance testing requirements associated with motors, transformers, fuses, connectors, breakers, bonding/weld resistance, and many other applications.   The 4300C Digital Micro-Ohmmeter measures a variety of low-resistance devices ranging in value from 100nΩ to 20kΩ. The flexible measurement format of the 4300C provides six ranges of user selectable test current (from 0.1mA to 10A) and three voltage sensitivity settings (20mV, 200mV, and 2V).

  • Test Current to 10 Amps
  • High Compliance Voltage
  • Temperature Compensation Mode (TCM)
  • On/Off Control of Test Current
  • 4-Wire Kelvin
  • Measurement Ranges from 2mΩ to 30kΩ
  • 3 Selectable Pre-Amp Ranges
  • 6 Selectable Test Current Ranges
  • VFD Display w/Adjustable Intensity
  • Hi-LO Resistance Limit Comparator
Range Test Voltage Full Scale Resolution Test Current1 Accuracy2
(± % reading ± Ω)
Temperature Coefficient3 TCM Mode Accuracy4
(± % reading ± % ΔT)
2mΩ 20mV 2.0000mΩ 100nΩ 10A ± .06 ± .0006m ±50ppm/°C ± .11 ± .0006m
20mΩ 20mV 20.000mΩ 1µΩ 1A ± .04 ± .006m ±50ppm/°C ± .09 ± .006m
200mΩ 20mV 200.00mΩ 10µΩ 0.1A ± .04 ± .06m ±50ppm/°C ± .09 ± .06m
20mV 2.0000Ω 100µΩ 10mA ± .04 ± .0006 ±50ppm/°C ± .09 ± .0006
20Ω 20mV 20.000Ω 1mΩ 1mA ± .04 ± .006 ±50ppm/°C ± .09 ± .006
200Ω 20mV 200.00Ω 10mΩ 0.1mA ± .04 ± .06 ±50ppm/°C ± .09 ± .06
20mΩ 200mV 20.000mΩ 1µΩ 10A ± .06 ± .003m ±50ppm/°C ± .11 ± .003m
200mΩ 200mV 200.00mΩ 10µΩ 1A ± .04 ± .03m ±50ppm/°C ± .09 ± .03m
200mV 2.0000Ω 100µΩ 0.1A ± .04 ± .0003 ±50ppm/°C ± .09 ± .0003
20Ω 200mV 20.000Ω 1mΩ 10mA ± .04 ± .003 ±50ppm/°C ± .09 ± .003
200Ω 200mV 200.00Ω 10mΩ 1mA ± .04 ± .03 ±50ppm/°C ± .09 ± .03
2kΩ 200mV 2.0000kΩ 100mΩ 0.1mA ± .04 ± .0003k ±50ppm/°C ± .09 ± .0003k
200mΩ 2V 200.00mΩ 10µΩ 10A ± .06 ± .03m ±50ppm/°C ± .11 ± .03m
2V 2.0000Ω 100µΩ 1A ± .04 ± .0003 ±50ppm/°C ± .09 ± .0003
20Ω 2V 20.000Ω 1mΩ 0.1A ± .04 ± .003 ±50ppm/°C ± .09 ± .003
200Ω 2V 200.00Ω 10mΩ 10mA ± .04 ± .03 ±50ppm/°C ± .09 ± .03
2kΩ 2V 2.0000kΩ 100mΩ 1mA ± .04 ± .0003k ±50ppm/°C ± .09 ± .0003k
20kΩ 2V 20.000kΩ 0.1mA ± .04 ± .003k ±50ppm/°C ± .09 ± .003k
General Specifications
Display Type:  5 digit VFD
Overload Indication: Flashes OVERLOAD
Conversion Rate: 45 readings per second
Terminal Configuration: 4-Wire Kelvin
Max Kick-Back Protection: 500A Peak Induced Current
Compl. Voltage (Normal Mode): 7.5 VDC Nominal @ 10A resistive
Compl. Voltage (Charging Inductor Mode): 20 VDC when indicator is on
Test Current Polarity: Positive (flows High to Low)
Open Circuit Voltage (Test Current Off): < 20mV
Power
Power Requirements: 115VAC or 230VAC ±10%
Temperature
Operating Temp. Range: 0°C to 50°C
Storage Temp. Range: -40°C to 85°C
Humidity: 80% RH max @ 40°C (non-condensing)
Physical Specifications
Width|Depth|Height:  17” / 43cm | 11.5” / 29.5cm | 4” /10cm
Weight: 20lbs / 9 kg net;
General Specifications
Display Type:  5 digit VFD
Overload Indication: Flashes OVERLOAD
Conversion Rate: 45 readings per second
Terminal Configuration: 4-Wire Kelvin
Max Kick-Back Protection: 500A Peak Induced Current
Compl. Voltage (Normal Mode): 7.5 VDC Nominal @ 10A resistive
Compl. Voltage (Charging Inductor Mode): 20 VDC when indicator is on
Test Current Polarity: Positive (flows High to Low)
Open Circuit Voltage (Test Current Off): < 20mV
Power
Power Requirements: 115VAC or 230VAC ±10%
Temperature
Operating Temp. Range: 0°C to 50°C
Storage Temp. Range: -40°C to 85°C
Humidity: 80% RH max @ 40°C (non-condensing)
Physical Specifications
Width|Depth|Height:  17” / 43cm | 11.5” / 29.5cm | 4” /10cm
Weight: 20lbs / 9 kg net;
SKU: 4300C Categories: ,

Performance That Conquers Any Resistance

Features of the 4300C include four terminal compensation, a very low 2mΩ range, selectable test current levels (up to 10 amps), a fast-settling charge inductor mode, safety disconnect status indicators, automatic temperature compensation, a basic accuracy of ±0.03% and a push button or GPIB controlled current on/off selector.

Extraordinary Features

  • User-selectable test-current up to 10A
  • Boosted compliance voltage mode for rapid charging of motors and transformers
  • “Safe to Disconnect” status indicators
  • Test-current “On/Off” switch
  • Selectable voltage sensitivity – 1μV, 10μV, 100μV
  • 18 voltage sense/current combination provide optimal measurement conditions
  • Selectable display refresh (100ms-to-500ms) with variable intensity
  • RS-232 serial interface
  • Programmable-automatic temperature compensation
  • Built-in limit comparator with visual-acoustic indications and rear panel relay terminals
  • Run/Hold w/Peak Detector
  • Print/Log Function

Certificate of Calibration Included

An NIST-traceable Z540.3 certificate of calibration is included with every instrument order.  Furthermore, enhanced ISO/IEC 17025 certification is available.

Select Options & Add to Cart

Instrument Options

Replaces standard RS-232 interface with a USB interface

Replaces standard RS-232 interface with a USB interface

Replaces standard RS-232 interface with a BCD InterfaceReplaces standard RS-232 interface with a BCD Interface

Replaces standard RS-232 interface with a BCD Interface

Replaces standard RS-232 interface with a IEEE Interface

Replaces standard RS-232 interface with a IEEE Interface

17025 Certification is performed on our behalf by a third party. Please contact us for additional information

17025 Certification is performed on our behalf by a third party. Please contact us for additional information
Instrument Warranty

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Product price: $6,050.00
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