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Voltage, Current & Loop Calibrators (38 Products)

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  1. Time Electronics Loop Simulator And Source Loop Mate 1 0 1 Percent Accuracy
    All Time Electronics Products
    Free UK Delivery*
    Time Electronics 7006 Loop Simulator and Source
    Rating:
    93%
    (1)
    £264.00 £220.00
    • 7 set calibration points
    • 0.1% accuracy
    • 0 to 10 V or 4 to 20mA loop
    440 Reward Points
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    SKU: 7006
  2. Time Electronics Combined Voltage Current Source Microcal 0 1 Percent Accuracy
    All Time Electronics Products
    Lead Time: 1-6 Days
    Free UK Delivery*
    Time Electronics 1030 MicroCal Voltage & Current Source
    Rating:
    0%
    (0)
    £376.80 £314.00
    • Simulate various signal types
    • Multiple outputs
    • High accuracy
    628 Reward Points
    Price Match Guarantee
    SKU: 1030
  3. Time Electronics Dc Voltage And Current Calibrator 0 05 Percent Accuracy
    All Time Electronics Products
    Lead Time: 1-2 Weeks
    Free UK Delivery*
    Time Electronics DC Voltage and Current Calibrator
    Rating:
    0%
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    £536.09 £446.74
    • High accuracy of 0.05%
    • Can measure and source current and voltage
    • Portable with its own carrying case
    892 Reward Points
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    SKU: 1044
  4. Time Electronics Voltage Current Loop Calibrator 0 02 Percent Accuracy
    All Time Electronics Products
    Free UK Delivery*
    Time Electronics Voltage / Current / Loop Calibrator
    Rating:
    0%
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    £630.00 £525.00
    • Works with current and voltage levels
    • Accuracy of 0.02%
    • Suitable for being used by a number of professions
    1050 Reward Points
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    SKU: 1048
  5. Time Electronics Voltage Current Loop Calibrator 0 01 Percent Accuracy
    All Time Electronics Products
    Free UK Delivery*
    Time Electronics 7005 Voltage, Current & Loop Calibrator
    Rating:
    0%
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    £834.00 £695.00
    • Ranges are fully programmable
    • Easy and simple to use – even for first timers
    • Min/Max Recording
    1390 Reward Points
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    SKU: 7005
  6. Time Electronics Dc Millivolt Source 0 02 Percent Accuracy 1
    All Time Electronics Products
    Free UK Delivery*
    Time Electronics 1006 DC Millivolt Source
    Rating:
    0%
    (0)
    £834.00 £695.00
    • Accuracy of 0.02%
    • 1V with up to 3 ranges
    • Protection against short circuit and overload
    1390 Reward Points
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    SKU: 1006
  7. Time Electronics Dc Current Source With Null Meter 0 02 Percent Accuracy 1
    All Time Electronics Products
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    Time Electronics 1021 DC Current Source
    Rating:
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    £1,062.00 £885.00
    • 2.4 watts max output power
    • Three separate output ranges
    • Useful for lots of different applications
    1770 Reward Points
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    SKU: 1021
  8. Time Electronics Dc Millivolt Potentiometer And Calibrator 0 02 Percent Accuracy 1
    All Time Electronics Products
    Free UK Delivery*
    Time Electronics 1007 DC Millivolt Potentiometer & Calibrator
    Rating:
    0%
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    £1,062.00 £885.00
    • 3 ranges: 0 to 1V, 0 to 100mV and 0 to 10mV
    • High accuracy
    • Microvolt null balance display
    1770 Reward Points
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    SKU: 1007
  9. Time Electronics Milliamp Transducerline Simulator Transim 0 02 Percent Accuracy 2
    All Time Electronics Products
    Free UK Delivery*
    Time Electronics 1077 Milliamp Transducer Simulator
    Rating:
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    £1,230.00 £1,025.00
    • Easy operation and LCD screen for measurement referencing
    • Three modes to choose from
    • Comes with free rubber protective case for fieldwork and travelling 
    2050 Reward Points
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    SKU: 1077
  10. Time Electronics Dc Voltage Calibrator 0 02 Percent Accuracy 1
    All Time Electronics Products
    Free UK Delivery*
    Time Electronics 1010 DC Voltage Calibrator
    Rating:
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    £1,392.00 £1,160.00
    • Accuracy of 0.02%
    • Fitted safety terminals
    • Choose battery or mains power supply
    2320 Reward Points
    Price Match Guarantee
    SKU: 1010
  11. Time Electronics Dc Current Calibrator With Null Measuring 0 02 Percent Accuracy
    All Time Electronics Products
    Free UK Delivery*
    Time Electronics DC Current Calibrator with Null Measuring
    Rating:
    0%
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    £1,584.00 £1,320.00
    • Can be used in numerous situations
    • Compatible with different types of plugs
    • Incredible accuracy of 0.02%
    2640 Reward Points
    Price Match Guarantee
    SKU: 1024
  12. Time Electronics Dc Multifunction Vir Calibrator 0 005 Percent Accuracy
    All Time Electronics Products
    Free UK Delivery*
    Time Electronics DC Multifunction V/I/R Calibrator
    Rating:
    0%
    (0)
    £1,722.00 £1,435.00
    • Tilt stand can be adjusted to suit you
    • Powered by rechargeable battery or mains plug
    • Five ranges of DC voltage
    2870 Reward Points
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    SKU: 1017
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About Voltage, Current & Loop Calibrators

Also known as current loops, 4-20mA sources are one of the most common methods used in the process industry for transmitting data between sensors and the applications that control and monitor them. The main advantage of a current loop is they can be combined with a huge variety of different sensors to measure temperature, pressure, liquid flow or light. This data is then compatible with a wide range of different management applications that interoperate with the data and react accordingly.

4-20mA current loops work by taking the results from the sensor and converting it to a proportional current. This means that a zero result causes a 4mA to be transmitted and a 20mA current is sent when the sensor is at full capacity. This information is then sent through copper cables to a receiver at the controller. The controller then decodes the sent signal into the format that is required by the process monitoring application.

The drawback with this method is that over long distances the signal can eventually erode as the voltage begins to wane. An engineer must also be careful when laying these cables to ensure that no electrically noisy systems are located close by, otherwise they can affect the signal. The main precaution that can be taken is to ensure the use of shielded cabling but this can become too expensive if used over long distances.

To ensure that a current loop is operating effectively engineers often use current calibrators to test the cables and ensure that there are no issues that need resolving no matter what their source.

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