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Accessories by Function Input

Sensor and Probe Functions

Select an accessory product for use with your APCS signal conditioning module by function then input.

  • TOC
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    • Accessories
    • Current Transformer
    • Sensor
    • Calibration, DPM, PSU
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Find Accessory Products

  • Current Transformer
    • Current Transformer, Select an Input
    • ac A
      • Current Transformer ac A, Select Product
      • DP23 SPLIT CORE CT 100-400A
      • DP58 SPLIT CORE CT 250-1000A
      • SCT007 Split Core CT 50A
      • SCT012 Split Core CT 100A
      • SCT010 Split Core CT 20-200A
      • SCT011 Split Core CT 5-400A 4-20mA LP
      • HCT028 HALL Effect CT 200A
      • Select Product
    • dc A
      • Current Transformer dc A, Select Product
      • HCT016 HALL Effect CT 50A
      • HCT017 HALL Effect CT 100A
      • HCT028 HALL Effect CT 200A
      • HCT018 HALL Effect CT 400A
      • HCT024 HALL Effect CT 800A
      • HCT025 HALL Effect CT (2800A max)
      • HCT019 HALL Effect CT 6000A
      • Select Product
    • Select Catagory
  • Sensor
    • Sensor, Select an Input
    • Conductivity
      • Sensor Conductivity, Select Product
      • PR105-1 Liquid Level Probe 3/8" BSP 1.5M tail
      • Select Product
    • Environmental-z
      • Sensor Environmental-z, Select Product
      • 6410 Wind Speed + Direction Masthead Sensor
      • Select Product
    • pH/REDOX
      • Sensor pH/REDOX, Select Product
      • PRM10 pH / ORP Sensor, 1/2" MNPT
      • PRM11 pH ORP Sensor 3/4" MNPT
      • Select Product
    • RTD
      • Sensor RTD, Select Product
      • PR505 Temperature Probe Pt100 (diecast head)
      • PR507 Temperature Probe, Pt100
      • Select Product
    • Select Catagory
  • Select a Function (above)
  • Select Output

Select an accessory product for use with your APCS signal conditioning module by function then input.

Sensor and Probe Functions

Current Transformer

APCS sells two type of current transformers, ac Current Transformers and hall effect current transformers.

 

ac Current Transformers

Basic Current Transformer Theory

The ac current transformer is the traditional item where the name comes from as it is a transformer in the true seance. Being a traditional transformer it operates correctly over a small frequency range typically 50 or 60 Hz with a sine wave shape.

Most current transformers will specify the primary and secondary current 400/5. This means that when 400A passes through the cable in the measurement window there will be a 5A current on the secondary. The secondary of the current transformer should always be connected to the measurement device. If 400 A were passing through the primary and the secondary is un-terminated then the output voltage will rise to an extremely high level and may damage the insulation of the CT.

APCS also sells a range of small CT’s with mA outputs. These CT’s have zenar diodes mounted internally to prevent over voltage if exterminated. There will be a load resistance specified that is mounted inside or on the input terminals of measurement device.

 

Hall Effect Current Transformer

The current conductor passes through a magnetically permeable core that concentrates the conductor’s magnetic field. The Hall effect device is mounted in the core at a right angle to the concentrated magnetic field. When the energised Hall device is exposed to a magnetic field from the core, it produces a potential difference (voltage) that can be measured and amplified.

It can be seen that the Hall Effect CT is a complex transducer that requires a power supply to operate is circuits and produce an output. The big advantage is that its output is the same wave shape as the input current and operates on direct and alternating currents. This means complex currents produced by complex machines can be measured and processed without using a shunt.

Hall Effect Sensor

Sensor

Various third party probes that APCS sells supplies for use with out signal conditioning products.

 

Environmental Products

Select a group of products that are environment related such as room temperature, LUX and wind speed.

Environmental Products
 

Calibration, DPM, PSU

Calibration, Indicator and PSU

Calibration, Indicator and PSU

Select from a range of calibrators or simulators to assist in fault finding and repair tasks.

Repair / Credit request form and calibration certificates are also detailed in this section.

A range of digital panel meters are available. Input ranges and power supply can be customised in most cases.

APCS manufactured and third party power supply units are available. The specified output can be customised in most cases.

 

  • Accessories
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  • Current Transformer
  • ac Current Transformers
  • Hall Effect Current Transformer
  • Sensor
  • Environmental Products
  • Calibration, DPM, PSU
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APCS is a division of NESS Corporation.

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Analogue Process Control Services, designing and manufacturing Signal Conditioning Modules since 1982.