isoPod USB sensor meters

SPS01 Syringe PumpThe eDAQ isoPods are a series of miniature instruments specially designed to work with different sensors and transducers for measurement of physical quantities. Like the e-corder isoPods, the USB isoPods are electrically isolated for applications, where signal noise and crosstalk would otherwise be an issue, eg when using pH or Oxygen electrodes. All eDAQ USB isoPods are powered through the USB bus and can be controlled by a set of ASCII commands through LabView or any other virtual COM-port software, or they can be used with the accompanying Pod-Vu data logging software.

isoPod advantages

  • Provided galvanic isolation to 1500V (250V working)
  • High accuracy and precision: typically 0.1%
  • High noise tolerance: CMR >100dB
  • Changes to isoPod functions, improvements or bug fixes can be downloaded – field upgradable
  • Microprocessor controlled calibration, linearisation and transducer excitation

A word about Isolation: Why Isolation?

Without isolation, different sensors can interact with one another to produce noise or incorrect readings. Similarly common mode voltages can harm the measuring circuit or common mode AC voltages can introduce noise.

Isolation provides:

  • Reduced Crosstalk - not sensitive to other nearby voltages.
  • Accepts common mode voltage – for example you can measure a small voltage difference in a high voltage environment.
  • High common mode AC rejection – mains noise is rejected by an isolated system.

Applications

  • pH, Oxygen, Nitric Oxide electrodes
  • Thermocouples, Thermistors, conductivity detectors
  • Strain gauges, force and pressure transducers
  • Photodiodes

pH & ISE isoPod

Provides an isolated hi input impedance voltage measuring circuit with special facilities for the measurement of pH and ISE.
Specifications
  • Input Impedance: > 1013 ohm
  • Ranges: 200 mV, 3.6 - 10.4 pH
                  2000 mV, 0 – 14 pH
  • Resolution: < 0.1 mV, < 0.001 pH
  • Isolation: > 250 Vrms

dO2 isoPod

Provides an isolated interface to a dissolved Oxygen Electrode. Adjustable poise voltage is available to suit the application. Current in the range 20µA to 20nA is software selectable. Baseline offset is provided to allow more accurate recording small changes in oxygen concentrations.
Specifications
  • Ranges: 20nA to 20µA
  • Zero offset: +/- 20µA
  • Polarisation: -1000 to -500mV, 0mV
  • Isolation: > 250 Vrms

Nitric Oxide isoPod

Provides an isolated interface to NO electrodes. Adjustable poise voltage is available to suit the application. Current in the range 2µA to 2nA Full scale can be measured to meet the requirements of most NO electrodes. Baseline offset is provided to allow more accurate recording of small changes in NO concentrations.
Specifications
  • Ranges: 2nA to 2µA
  • Zero offset: +/- 2µA
  • Polarisation: +500 to 1000mV, 0mV
  • Isolation: > 250 Vrms

Biosensor isoPod

provides an isolated low current to Voltage converter suitable for use with a variety of current sources including 2 electrode amperometric biosensors and photodiodes. Baseline offset is provided to allow accurate recording of small current changes.

Specifications
  • Ranges: 20nA to 20µA
  • Zero offset: +/- 20µA
  • Polarisation: -2 to 2V
  • Isolation: > 250 Vrms

Conductivity isoPod

provides a wide range (2uS to 200mS) conductivity meter provided with varying frequency Square wave excitation.
Specifications
  • Input Socket: BNC
  • Ranges: 2, 20, 200 µS, 2, 20, 200 mS
  • AC waveform: Square pulse, 20 or 200 mV p-p
  • AC frequency: 0.5, 1.0 or 10 kHz
  • Isolation: > 250 Vrms

Thermocouple isoPod

An electrically isolated amplifier that is suitable for connection to most types of thermocouple probe. A raw millivolt mode also allows isolated measurements of small potential differences.

Polynomial signal correction is performed for each thermocouple type ensuring accuracy at least as good as the probe specification.
Specifications
  • Thermocouple types: B, E, J, K, N, R, S, T
  • Input socket: Miniature thermocouple type (copper)
  • ICMR: > 140 dB
  • Isolation: > 250 Vrms

RTD/Thermistor isoPod™

Electrically isolated, compact signal conditioner with a USB/virtual serial port connection for continuous recording of temperature from suitable platinum RTD or NTC thermistor probes

Quad Multi Function isoPod™

Electrically isolated, quad compact signal conditioner compatible with multiple probes.
Using its MF Configuator software, each channel can be independently configured and calibrated for a particular type of sensor:
  • pH, ISE, ORP
  • voltage (mV)
  • dissolved oxygen (dO2)
  • solution conductivity
  • amperometric biosensors
  • temperature (1000 ohm RTD or 30 kohm thermistor)

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  1. dO2 isoPod™ with USB

    dO2 isoPod™ with USB

    €390.75

    Electrically isolated, compact signal conditioner with a USB/virtual serial port connection, for continuous monitoring of polarographic (Clark) dissolved oxygen electrodes. Learn More
  2. Quad Multi Function isoPod™

    Quad Multi Function isoPod™

    €1,417.39

    Four channel isoPod USB electrically isolated sensor meter. Each channel can be configured for a different sensor. Learn More
  3. pH & ISE isoPod™ with USB

    pH & ISE isoPod™ with USB

    €316.87

    Electrically isolated, compact signal conditioner with a USB/virtual serial port connection for continuous monitoring most pH, ion selective and oxidation/reduction potentiometric (ORP) electrodes. Learn More
  4. Nitric Oxide isoPod™ with USB

    Nitric Oxide isoPod™ with USB

    €645.09

    Electrically isolated, compact signal conditioner with a USB/virtual serial port connection for continuous monitoring polarographic (Clark–style) nitric oxide electrodes. Learn More
  5. Biosensor isoPod™ with USB

    Biosensor isoPod™ with USB

    €539.23

    Electrically isolated, compact signal conditioner with a USB/virtual serial port connection for continuous monitoring of low current amperometric sensors. Learn More
  6. Thermocouple isoPod™ with USB

    Thermocouple isoPod™ with USB

    €390.75

    Electrically isolated, compact signal conditioner with a USB/virtual serial port connection for continuous recording of temperature from thermocouple probes Learn More
  7. RTD/Thermistor isoPod™ with USB

    RTD/Thermistor isoPod™ with USB

    €316.87

    Electrically isolated, compact signal conditioner with a USB/virtual serial port connection for continuous recording of temperature from suitable platinum RTD or NTC thermistor probes. Learn More
  8. eDaq EPU357 Conductivity IsoPod

    Conductivity isoPod™ with USB

    €465.35

    Electrically isolated, compact signal conditioner with a USB/virtual serial port connection for continuous recording of solution conductivity or TDS. Learn More
  9. qUAD pH isoPod™ with USB

    qUAD pH isoPod™ with USB

    €920.04

    Four channel, electrically isolated, compact signal conditioner with a USB connection for continuous monitoring most pH, ion selective and oxidation/reduction potentiometric (ORP) electrodes.
    • Use with up to 4 electrodes
    • Electrically isolated
    • USB connection to computer
    • Use with Pod-Vu or LabVIEW software
    Learn More

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