Магазин сопровтиления высокой точности 10 мОм - 121 МОм, разрешение 1 мОм или 20 мкОм, герметичные с низкой индуктивностью набор резисторов, погрешность 20 ppm

HARS-LX
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Основные возможности и технические характеристики

The HARS-LX series is the world's highest accuracy continuously variable decade resistor for the most exacting calibration and test applications.

The HARS-LX substituter is a precision resistance source with excellent characteristics of accuracy, stability, temperature coefficient, and power coefficient. All these features serve to make it a laboratory resistance standard, exceeded in performance only by stand-alone standard resistors.

Hermetically sealed wirewound resistors are used for 1 Ω steps and over. These resistors are carefully conditioned under power and temperature in order to develop the best stability characteristics. Actual experience has shown them to exhibit a storage stability of better than 5 ppm/year, improving as they age. The low-resistance resistors are constructed with resistance wire with a minimum of copper resistance in series to limit temperature coefficient effects.

The resistance substituter has a fixed minimum resistance of 10 mΩ. This is implemented by mechanically limiting the 10 mΩ decade from going below the “1” position. In this manner, no zero resistance subtractions have to be made, and the accuracy given is for the absolute reading.

The HARS-LX series employs completely enclosed dust-tight very low contact resistance switches. They feature silver-clad copper contacts and quadruple-leaf silver alloy self-cleaning wipers which keep switch contact resistance to under 1 mΩ per decade, and more importantly, keep switch contact resistance reproducible, insuring repeatable instrument performance.

High quality gold plated tellurium copper binding posts minimize the thermal emf effects which would artificially reflect a change in dc resistance measurements. All other conductors within the instrument, as well as the solder employed, contain no metals or junctions that contribute to thermal emf problems.

The HARS-LX is designed to allow very convenient maintenance of calibration over time. Most decades can be calibrated without changing components or soldering resistors. The decades for the 100 Ω through 100 kΩ steps are calibrated with convenient trimmers. Trimming of the lower decades is also possible.

With a resolution as low as 1 mΩ and a maximum available resistance of over 12.2 MΩ, the HARS-LX Series may be employed for exacting precision measurement applications requiring high accuracy and stability. They can be used as components of dc and low frequency ac bridges, for calibration, as transfer standards, and as RTD simulators 

  • High accuracy - as good as 20 ppm
  • High stability - as good as 5 ppm/yr
  • Over 55 models available with resistance from 1 mΩ to 121.1 MΩ
  • Resolution as good 1 mΩ with a fixed decade or 20 μΩ with a rheostat.
  • Low temperature coefficient - as low as 3 ppm/°C
  • High performance silver-clad contacts
  • Hermetically sealed, low inductance resistors
  • No zero correction required
  • For increased accuracy, decades ≥ 1 Ω can be individually trimmed
  • The US Army's Resistance Standard 

  • Свернуть Развернуть
    Основные возможности и технические характеристики

    The HARS-LX series is the world's highest accuracy continuously variable decade resistor for the most exacting calibration and test applications.

    The HARS-LX substituter is a precision resistance source with excellent characteristics of accuracy, stability, temperature coefficient, and power coefficient. All these features serve to make it a laboratory resistance standard, exceeded in performance only by stand-alone standard resistors.

    Hermetically sealed wirewound resistors are used for 1 Ω steps and over. These resistors are carefully conditioned under power and temperature in order to develop the best stability characteristics. Actual experience has shown them to exhibit a storage stability of better than 5 ppm/year, improving as they age. The low-resistance resistors are constructed with resistance wire with a minimum of copper resistance in series to limit temperature coefficient effects.

    The resistance substituter has a fixed minimum resistance of 10 mΩ. This is implemented by mechanically limiting the 10 mΩ decade from going below the “1” position. In this manner, no zero resistance subtractions have to be made, and the accuracy given is for the absolute reading.

    The HARS-LX series employs completely enclosed dust-tight very low contact resistance switches. They feature silver-clad copper contacts and quadruple-leaf silver alloy self-cleaning wipers which keep switch contact resistance to under 1 mΩ per decade, and more importantly, keep switch contact resistance reproducible, insuring repeatable instrument performance.

    High quality gold plated tellurium copper binding posts minimize the thermal emf effects which would artificially reflect a change in dc resistance measurements. All other conductors within the instrument, as well as the solder employed, contain no metals or junctions that contribute to thermal emf problems.

    The HARS-LX is designed to allow very convenient maintenance of calibration over time. Most decades can be calibrated without changing components or soldering resistors. The decades for the 100 Ω through 100 kΩ steps are calibrated with convenient trimmers. Trimming of the lower decades is also possible.

    With a resolution as low as 1 mΩ and a maximum available resistance of over 12.2 MΩ, the HARS-LX Series may be employed for exacting precision measurement applications requiring high accuracy and stability. They can be used as components of dc and low frequency ac bridges, for calibration, as transfer standards, and as RTD simulators 

  • High accuracy - as good as 20 ppm
  • High stability - as good as 5 ppm/yr
  • Over 55 models available with resistance from 1 mΩ to 121.1 MΩ
  • Resolution as good 1 mΩ with a fixed decade or 20 μΩ with a rheostat.
  • Low temperature coefficient - as low as 3 ppm/°C
  • High performance silver-clad contacts
  • Hermetically sealed, low inductance resistors
  • No zero correction required
  • For increased accuracy, decades ≥ 1 Ω can be individually trimmed
  • The US Army's Resistance Standard 

  • Комплектацию Вы можете узнать:
    По тел.: +7 (495) 105 96 88 или
    Написать нам письмо: info@micro-electronics.ru
    Комплектацию Вы можете узнать:
    По тел.: +7 (495) 105 96 88 или
    Написать нам письмо: info@micro-electronics.ru
    Свернуть Развернуть
    Сведения о реестре СИ

    Номер в Госреестре

    Наименование СИ

    Обозначение типа СИ

    Изготовитель

    Срок свидетельства или заводской номер

    55835-13
    Магазины сопротивления
    IET серии HARS-х-х-х
    Фирма "IET Labs, Inc.", США
    23.10.2023
    Свернуть Развернуть
    Сведения о реестре СИ

    Номер в Госреестре

    Наименование СИ

    Обозначение типа СИ

    Изготовитель

    Срок свидетельства или заводской номер

    55835-13
    Магазины сопротивления
    IET серии HARS-х-х-х
    Фирма "IET Labs, Inc.", США
    23.10.2023
    • Precision Decade Resistor - IET Labs HARS-LX Series
    Характеристики
    Загрузить технические характеристики

    HARS-LX BASIC SPECIFICATIONS

    (Full specifications can be found on the datasheet)
    Resistance per step
    Total decade resistance
    Max current
    Max power
    Temperature coefficient (ppm/ºC)
    Power coefficient (ppm/mW)
    Accuracy
    Stability(±}ppm/yr
    100μΩ Rheostat
    10 mΩ
    2 A
    NA
    20
    1
       
    1 mΩ
    10 mΩ
    2 A
    NA
    20
    1
    20 ppm+0.5 mΩ
    20 ppm+0.5 mΩ
    10 mΩ
    100 mΩ
    2 A
    NA
    20
    1
    20 ppm+0.5 mΩ
    20 ppm+0.5 mΩ
    100 mΩ
    1 Ω
    2 A
    NA
    20
    1
    20 ppm+0.5 mΩ
    20 ppm+0.5 mΩ
    1 Ω
    10 Ω
    1 A
    5 W
    20
    0.4
    20 ppm+0.5 mΩ
    20 ppm+0.5 mΩ
    10 Ω
    100 Ω
    0.33 A
    5 W
    10
    0.3
    20 ppm+0.5 mΩ
    20 ppm+0.5 mΩ
    100 Ω
    1 kΩ
    0.1 A
    5 W
    3
    0.1
    20 ppm+0.5 mΩ
    20 ppm+0.5 mΩ
    1 kΩ
    10 kΩ
    33 mA
    5 W
    3
    0.1
    20 ppm+0.5 mΩ
    10 ppm(<5 ppm typical)
    10 kΩ
    100 kΩ
    10 mA
    5 W
    3
    0.1
    20 ppm+0.5 mΩ
    10 ppm(<5 ppm typical)
    100 kΩ
    1 MΩ
    3 mA
    2,000 V
    3
    0.1
    20 ppm+0.5 mΩ
    10 ppm(<5 ppm typical)
    1 MΩ
    10 MΩ
    1 mA
    2,000 V peak
    3
    0.1
    20 ppm+0.5 mΩ
    10 ppm(<5 ppm typical)
    10 MΩ
    100 MΩ
      2,000 V peak
    15
    0.2
    2000 ppm
    50 ppm
    Wiring and switch resistance
      50μΩ/C 0.2μΩ/W    
    At 23°C "true ohm" measurement, 30-70% RH, absolute reading, SI traceable
    No zero subtraction required
    Minimum resistance:10 mΩ ± 0.5 mΩ; determined by the lowest settable position, "1", of the 10 mΩ/step decade
    Resistance repeatability: Better than 100 μΩ, short-term, average value
    Модели и опции
    Товар
    Модели и Опции
    Описание
    Цена Заказать
    Модели
    HARS-LX
    Магазин сопровтиления высокой точности 10 мОм - 121 МОм, разрешение 1 мОм или 20 мкОм, герметичные с низкой индуктивностью набор резисторов, погрешность 20 ppm
    По запросу
    - шт +
    Options
    -RH:
    10 mO rheostat for lowest decades, 20 pO resolution
    По запросу
    - шт +
    -RO:
    Rear output binding posts
    По запросу
    - шт +
    -RM:
    Rack-mountable case for standard 19" rack
    По запросу
    - шт +
    Ordering information
    HARS-LX-1-100k
    Total resistance: 1.1 MΩ, Number of decades: 1, Resolution: 100 kΩ, Historic GR model numbers: none
    По запросу
    - шт +
    HARS-LX-1-1M
    Total resistance: 11 MΩ, Number of decades: 1, Resolution: 1 MΩ, Historic GR model numbers: none
    По запросу
    - шт +
    HARS-LX-1-10M
    Total resistance: 110 MΩ, Number of decades: 1, Resolution: 10 MΩ, Historic GR model numbers: none
    По запросу
    - шт +
    HARS-LX-2-0.001
    Total resistance: 110 mΩ, Number of decades: 2, Resolution: 1 mΩ, Historic GR model numbers: 2 mΩ
    По запросу
    - шт +
    HARS-LX-2-0.01
    Total resistance: 1.10 Ω, Number of decades: 2, Resolution: 10 mΩ, Historic GR model numbers: 10 mΩ
    По запросу
    - шт +
    HARS-LX-2-0.1
    Total resistance: 12.0 Ω, Number of decades: 2, Resolution: 100 mΩ, Historic GR model numbers: 100 mΩ
    По запросу
    - шт +
    HARS-LX-2-1
    Total resistance: 120 Ω, Number of decades: 2, Resolution: 1 Ω, Historic GR model numbers: 1 Ω
    По запросу
    - шт +
    HARS-LX-2-10
    Total resistance: 1.10 kΩ, Number of decades: 2, Resolution: 10 Ω, Historic GR model numbers: 10 Ω
    По запросу
    - шт +
    HARS-LX-2-100
    Total resistance: 11.0 kΩ, Number of decades: 2, Resolution: 100 Ω, Historic GR model numbers: 100 Ω
    По запросу
    - шт +
    HARS-LX-2-1k
    Total resistance: 120 kΩ, Number of decades: 2, Resolution: 1 kΩ, Historic GR model numbers: 1 kΩ
    По запросу
    - шт +
    HARS-LX-1-0.001
    Total resistance: 10 mΩ, Number of decades: 1, Resolution: 1 mΩ, Historic GR model numbers: 1 mΩ
    По запросу
    - шт +
    HARS-LX-2-10k
    Total resistance: 1.20 MΩ, Number of decades: 2, Resolution: 10 kΩ, Historic GR model numbers: none
    По запросу
    - шт +
    HARS-LX-2-100k
    Total resistance: 12.0 MΩ, Number of decades: 2, Resolution: 100 kΩ, Historic GR model numbers: none
    По запросу
    - шт +
    HARS-LX-2-1M
    Total resistance: 120 MΩ, Number of decades: 2, Resolution: 1 MΩ, Historic GR model numbers: none
    По запросу
    - шт +
    HARS-LX-3-0.001
    Total resistance: 1.110 Ω, Number of decades: 3, Resolution: 1 mΩ, Historic GR model numbers: *
    По запросу
    - шт +
    HARS-LX-3-0.01
    Total resistance: 12.10 Ω, Number of decades: 3, Resolution: 10 mΩ, Historic GR model numbers: 10 mΩ
    По запросу
    - шт +
    HARS-LX-3-0.1
    Total resistance: 121.0 Ω, Number of decades: 3, Resolution: 100 mΩ, Historic GR model numbers: 100 mΩ
    По запросу
    - шт +
    HARS-LX-3-1
    Total resistance: 1.110 kΩ, Number of decades: 3, Resolution: 1 Ω, Historic GR model numbers: 1 Ω
    По запросу
    - шт +
    HARS-LX-3-10
    Total resistance: 11.10 kΩ, Number of decades: 3, Resolution: 10 Ω, Historic GR model numbers: 10 Ω
    По запросу
    - шт +
    HARS-LX-3-100
    Total resistance: 121.0 kΩ, Number of decades: 3, Resolution: 100 Ω, Historic GR model numbers: 100 Ω
    По запросу
    - шт +
    HARS-LX-3-1k
    Total resistance: 1.210 MΩ, Number of decades: 3, Resolution: 1 kΩ, Historic GR model numbers: 1 kΩ
    По запросу
    - шт +
    HARS-LX-1-0.01
    Total resistance: 100 mΩ, Number of decades: 1, Resolution: 10 mΩ, Historic GR model numbers: 10 mΩ
    По запросу
    - шт +
    HARS-LX-3-10k
    Total resistance: 12.10 MΩ, Number of decades: 3, Resolution: 10 kΩ, Historic GR model numbers: none
    По запросу
    - шт +
    HARS-LX-3-100k
    Total resistance: 121.0 MΩ, Number of decades: 3, Resolution: 100 KΩ, Historic GR model numbers: none
    По запросу
    - шт +
    HARS-LX-4-0.001
    Total resistance: 12.110 Ω, Number of decades: 4, Resolution: 1 mΩ, Historic GR model numbers: *
    По запросу
    - шт +
    HARS-LX-4-0.01
    Total resistance: 121.10 Ω, Number of decades: 4, Resolution: 10 mΩ, Historic GR model numbers: 10 mΩ
    По запросу
    - шт +
    HARS-LX-4-0.1
    Total resistance: 1.111 0 kΩ, Number of decades: 4, Resolution: 100 mΩ, Historic GR model numbers: 100 mΩ
    По запросу
    - шт +
    HARS-LX-4-1
    Total resistance: 11.110 kΩ, Number of decades: 4, Resolution: 1 Ω, Historic GR model numbers: 1 Ω
    По запросу
    - шт +
    HARS-LX-4-10
    Total resistance: 121.10 kΩ, Number of decades: 4, Resolution: 10 Ω, Historic GR model numbers: 10 Ω
    По запросу
    - шт +
    HARS-LX-4-100
    Total resistance: 1.211 0 MΩ, Number of decades: 4, Resolution: 100 Ω, Historic GR model numbers: 100 Ω
    По запросу
    - шт +
    HARS-LX-4-1k
    Total resistance: 12.110 MΩ, Number of decades: 4, Resolution: 1 kΩ, Historic GR model numbers: 1 kΩ
    По запросу
    - шт +
    HARS-LX-4-10k
    Total resistance: 121.10 MΩ, Number of decades: 4, Resolution: 10 kΩ, Historic GR model numbers: none
    По запросу
    - шт +
    HARS-LX-1-0.1
    Total resistance: 1 Ω, Number of decades: 1, Resolution: 100 mΩ, Historic GR model numbers: 100 mΩ
    По запросу
    - шт +
    HARS-LX-5-0.001
    Total resistance: 121.110 Ω, Number of decades: 5, Resolution: 1 mΩ, Historic GR model numbers: *
    По запросу
    - шт +
    HARS-LX-5-0.01
    Total resistance: 1.111 10 kΩ, Number of decades: 5, Resolution: 10 mΩ, Historic GR model numbers: 10 mΩ
    По запросу
    - шт +
    HARS-LX-5-0.1
    Total resistance: 11.111 0 kΩ, Number of decades: 5, Resolution: 100 mΩ, Historic GR model numbers: 100 mΩ
    По запросу
    - шт +
    HARS-LX-5-1
    Total resistance: 121.110 kΩ, Number of decades: 5, Resolution: 1 Ω, Historic GR model numbers: 1 Ω
    По запросу
    - шт +
    HARS-LX-5-10
    Total resistance: 1.211 10 MΩ, Number of decades: 5, Resolution: 10 Ω, Historic GR model numbers: 10 Ω
    По запросу
    - шт +
    HARS-LX-5-100
    Total resistance: 12.111 0 MΩ, Number of decades: 5, Resolution: 100 Ω, Historic GR model numbers: 100 Ω
    По запросу
    - шт +
    HARS-LX-5-1k
    Total resistance: 121.110 MΩ, Number of decades: 5, Resolution: 1 kΩ, Historic GR model numbers: 1 kΩ
    По запросу
    - шт +
    HARS-LX-6-0.001
    Total resistance: 1.111 110 kΩ, Number of decades: 6, Resolution: 1 mΩ, Historic GR model numbers: *
    По запросу
    - шт +
    HARS-LX-6-0.01
    Total resistance: 11.111 10 kΩ, Number of decades: 6, Resolution: 10 mΩ, Historic GR model numbers: 10 mΩ
    По запросу
    - шт +
    HARS-LX-6-0.1
    Total resistance: 121.111 0 kΩ, Number of decades: 6, Resolution: 100 mΩ, Historic GR model numbers: 100 mΩ
    По запросу
    - шт +
    HARS-LX-1-1
    Total resistance: 11 Ω, Number of decades: 1, Resolution: 1 Ω, Historic GR model numbers: 1 Ω
    По запросу
    - шт +
    HARS-LX-6-1
    Total resistance: 1.211 110 MΩ, Number of decades: 6, Resolution: 1 Ω, Historic GR model numbers: 1 Ω
    По запросу
    - шт +
    HARS-LX-6-10
    Total resistance: 12.111 10 MΩ, Number of decades: 6, Resolution: 10 Ω, Historic GR model numbers: 10 Ω
    По запросу
    - шт +
    HARS-LX-6-100
    Total resistance: 121.111 0 MΩ, Number of decades: 6, Resolution: 100 Ω, Historic GR model numbers: 100 Ω
    По запросу
    - шт +
    HARS-LX-7-0.001
    Total resistance: 11.111 110 kΩ, Number of decades: 7, Resolution: 1 mΩ, Historic GR model numbers: *
    По запросу
    - шт +
    HARS-LX-7-0.01
    Total resistance: 121.111 10 kΩ, Number of decades: 7, Resolution: 10 mΩ, Historic GR model numbers: 10 mΩ
    По запросу
    - шт +
    HARS-LX-7-0.1
    Total resistance: 1.211 111 0 MΩ, Number of decades: 7, Resolution: 100 mΩ, Historic GR model numbers: 100 mΩ
    По запросу
    - шт +
    HARS-LX-7-1
    Total resistance: 12.111 110 MΩ, Number of decades: 7, Resolution: 1 Ω, Historic GR model numbers: 1 Ω
    По запросу
    - шт +
    HARS-LX-7-10
    Total resistance: 121.111 10 MΩ, Number of decades: 7, Resolution: 10 Ω, Historic GR model numbers: 10 Ω
    По запросу
    - шт +
    HARS-LX-8-0.001
    Total resistance: 121.111 110 kΩ, Number of decades: 8, Resolution: 1 mΩ, Historic GR model numbers: *
    По запросу
    - шт +
    HARS-LX-8-0.01
    Total resistance: 1.211 111 10 MΩ, Number of decades: 8, Resolution: 10 mΩ, Historic GR model numbers: 10 mΩ
    По запросу
    - шт +
    HARS-LX-1-10
    Total resistance: 110 Ω, Number of decades: 1, Resolution: 10 Ω, Historic GR model numbers: 10 Ω
    По запросу
    - шт +
    HARS-LX-8-0.1
    Total resistance: 12.111 111 0 MΩ, Number of decades: 8, Resolution: 100 mΩ, Historic GR model numbers: 100 mΩ
    По запросу
    - шт +
    HARS-LX-8-1
    Total resistance: 121.111 110 MΩ, Number of decades: 8, Resolution: 1 Ω, Historic GR model numbers: 1 Ω
    По запросу
    - шт +
    HARS-LX-9-0.001
    Total resistance: 1.211 111 110 MΩ, Number of decades: 9, Resolution: 1 mΩ, Historic GR model numbers: *
    По запросу
    - шт +
    HARS-LX-9-0.01
    Total resistance: 12.111 111 10 MΩ, Number of decades: 9, Resolution: 10 mΩ, Historic GR model numbers: 10 mΩ
    По запросу
    - шт +
    HARS-LX-9-0.1
    Total resistance: 121.111 111 0 MΩ, Number of decades: 9, Resolution: 100 mΩ, Historic GR model numbers: 100 mΩ
    По запросу
    - шт +
    HARS-LX-10-0.001
    Total resistance: 12.111 111 110 MΩ, Number of decades: 10, Resolution: 1 mΩ, Historic GR model numbers: *
    По запросу
    - шт +
    HARS-LX-10-0.01
    Total resistance: 121.111 111 10 MΩ, Number of decades: 10, Resolution: 10 mΩ, Historic GR model numbers: 10 mΩ
    По запросу
    - шт +
    HARS-LX-11-0.001
    Total resistance: 121.111 111 110 MΩ, Number of decades: 11, Resolution: 1 mΩ, Historic GR model numbers: *
    По запросу
    - шт +
    HARS-LX-1-100
    Total resistance: 1.0 kΩ, Number of decades: 1, Resolution: 100 Ω, Historic GR model numbers: 100 Ω
    По запросу
    - шт +
    HARS-LX-1-1k
    Total resistance: 10 kΩ, Number of decades: 1, Resolution: 1 kΩ, Historic GR model numbers: 1 kΩ
    По запросу
    - шт +
    HARS-LX-1-10k
    Total resistance: 110 kΩ, Number of decades: 1, Resolution: 10 kΩ, Historic GR model numbers: none
    По запросу
    - шт +
    Библиотека

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