1310A Automated Resistance Standard

  • 9 Resistors 1 Ω, 10 Ω, 100 Ω, 1 kΩ, 10 kΩ, 100 kΩ, 1 MΩ, 10 MΩ, 100 MΩ, 1 External Channel
  • Front Panel or GPIB Controlled
  • Single Output Cable for Direct Plug-in
  • Maintained in Temperature-Controlled Chamber
  • Built for Calibration of Calibrators and DVM’s
  • Best Stability < 2.5 μΩ/Ω/Year (< 2.5 ppm/Year)
  • Other Resistor Elements Available
Features & Benefits

The MI model 1310A was designed to provide customers with a user-friendly, cost-efficient 9-element resistance standard with a built-in scanner to be used in the characterization of DVMʼs and calibrators.

The MI model 1310A was designed and developed by metrologists for metrologists! The ease of use of the 1310A makes it the ideal choice for use in the calibration and maintenance of calibrators. Metrologists and calibration technicians in national laboratories, the military, and third party calibration laboratories will be greatly impressed with the performance of the 1310A.

The nine-resistance elements cover the range from 1 Ω to 100 MΩ. Other resistor elements such as the 25 Ω and 400 Ω are available. An external extra channel is included which allows users to connect a resistance value of their choice. The internal resistance elements are housed in a single temperature-controlled chamber and feature excellent stability and extremely low-temperature coefficients.

1310A Block Diagram

Figure 1. Resistance Box

A few companies claim unproven specifications, we ask you to talk to your NMI or other NMIʼs about which product is proven and meets its specifications!

The 1310A uses high precision resistors mounted in a temperature-controlled chamber. This allows for the highest level of performance from the internal high precision resistors. The operation was designed to offer customers the easiest-to-use instrument with complete confidence. An internally mounted temperature sensor PT100 allows users to connect to the front panel and monitor the internal oven.

The 1310A uses high precision handpicked resistors mounted in a temperature-controlled chamber. This allows for the highest level of performance from the internal high precision resistors. For years, MI has been providing the very best in resistance standards to metrologists and calibration technicians in national laboratories, the military, and third-party calibration laboratories.

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

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

The operation was designed to offer customers the easiest-to-use instrument with complete confidence. A new design on temperature enclosure based on input from a world-leading NMI, provides customers with the very best in temperature stability.

Take a look at just how good the 1310A performs over 24 hours!

Figure 3. Stability Testing Internal Temperature Chamber

Figure 3. 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

 

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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