1310A Automated Resistance Standard

Developed & designed by metrologists for metrologists & calibration technicians

  • Exceptional Stability
  • Cost-effectiveness
  • Performance-based Results
Overview

Measurements International’s new Automated Resistance Standard model 1310A is an easy-to-use, cost-effective calibration instrument that will give the military sector, national and third-party laboratories complete confidence in resistance standards. Designed with input from a world-leading National Measurement Institute, customers can be confident this new design offers exceptional calibration results.

Feature Benefit
9 resistors 1 Ω, 10 Ω, 100 Ω, 1 kΩ, 10 kΩ, 100 kΩ, 1 MΩ, 10 MΩ, 100 MΩ, 1 external channel. Complete line of decade value standards in one temperature-controlled enclosure.
Hand-picked high precision resistors in
temperature-controlled chamber.
Delivers highest level of performance from the internal high precision resistors.
Internal resistance elements in a temperature-controlled chamber. Excellent stability and extremely low-temperature coefficients.
Single output cable for direct plug-in. Easy operation without requirement for changing wires.
Built for calibration of calibrators and DVMs. Best stability < 2.5 μΩ/Ω/Year.
Built-in 4-terminal scanner. Combining two instruments into one simple to use instrument.
External extra channel. Connect to resistance value of your choice.
Front panel or GPIB controlled. Simplifies operation for user.
Internally mounted temperature sensor PT100. Users can connect to front panel and monitor
internal oven.

Figure 2. Drift of 9331 Resistor Over a 10 Year Period

Figure 1.    Drift of MI Resistor Over a 10 Year Period

Figure 3. Stability Testing Internal Temperature Chamber
Figure 2.    24-Hour Stability Testing Internal
Temperature Chamber

Specifications
Nominal
Resistance
(Ohms)
Nominal
Resistance
(± μΩ/Ω)
(± ppm)
24 Hour
Stability
(± μΩ/Ω)
(± ppm)
12 Month
Stability
(± μΩ/Ω)
(± ppm)
Temperature
Coefficient
(± μΩ/Ω/°C)
(± ppm/°C)
Max.
Voltage
(Volts)
100 MΩ 50 0.4 10 0.025 100
10 MΩ 35 0.25 10 0.025 100
1 MΩ 25 0.03 2.5 0.02 100
100 kΩ 15 0.02 2.5 0.01 100
10 kΩ 10 0.01 2.5 0.005 32
1 kΩ 10 0.01 2.5 0.005 10
100 Ω 10 0.01 2.5 0.005 3.2
10 Ω 10 0.01 2.5 0.005 1.0
1 Ω 10 0.01 2.5 0.005 0.32
Temperature Stability ± 0.1 °C Over a 1 Year Period
Ambient Temperature Range 23 °C ± 5 °C
Ambient Humidity Range 20 to 70 % RH
Warranty Standard 2 Year Parts & Labour

Scanner Specifications

Operation Four-Terminal Matrix
Error Contribution < 20 Nanovolts
Contact Configuration Relay – Two Coil Latching
Max Carrying/Switching Current 4/2 Amps @ < 30 Volt (DC)
Maximum Working/Switching Voltage 1000/220 Volts @ < 100 mA (DC)
Contact Resistance < 0.05 Ω
Expected Relay Life 108 Operations
Insulation Resistance > 1012 Ω

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