CO2 4-20mA Transmitter

In stock (1 item available)
  • Weight
    0.31 kg
  • SKU
    CMS-150

Three wire 4 to 20 mA sensor detects carbon dioxide concentration from 0 to 3000 ppm.

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The PHG transmitter measures CO2 concentration in in-door atmospheres and converts it into standard current or voltage signal. PHG model uses dual nondispersive infrared (NDIR) carbon-dioxide sensor providing improved accuracy and sensitivity as well as low temperature and humidity dependence.

The transmitter can be equipped with local 4-digit LED display and RS232 serial interface. PHG mounting variants include free or duct installation with top or bottom mounted connector.

PHG application area includes indoor air control, ventilation, air-conditioning, mushroom control, etc.

  • Low Cost
  • Dual NDIR sensor built in
  • Good accuracy, sensitivity and selectivity
  • Low humidity and temperature dependency
  • For HVAC and food processing applications
  • Comeco Part No: PHG-B.03.X.F

Please note that the datasheet mentions a range of options, not all of which we stock. We may be able to bring in sensors with different options, but minimum orders and different pricing may apply. Contact us for further details.

  • Power supply: 15 to 32 VDC
  • Supply Voltage Variability:1 Vp-p at 50 Hz
  • Current draw: ≤90 mA
  • Output Signal: 4 to 20 mA
  • Output update: 2 s
  • Measurement Range: 0 to 3000 ppm
  • Measurement Error: ±2 ppm at 10 to 50 °C
  • Temperature Dependence: 10 ppm for 1 °C
  • Maximum Load: 350 Ω at 24 V, 20 mA
  • Warm-up time: ≤90 s at 25 °C
  • Response time (0 to 80%): ≤30 s

Faulty Goods and Warranty

Where such goods have been supplied we undertake to repair or replace them as quickly as possible.Prior to returning faulty items, please contact us with a description of the fault as one of our engineers might be able to assist you by resolving the issue over the phone.
A Warranty form must be filled out and returned with any goods.

Our standard warranty period is 12 months from the date of purchase unless stated otherwise.

Other warranty periods:

Labjack Products: 5 Years
Atop Products: 3 Years
MeanWell Products: 3 Years
Terracom Products: 3 Years

Warranty is subject to us being satisfied that a defect was caused by defective workmanship or materials and was not caused by or was not substantially contributed to by other factors beyond our control including incorrect installation, alterations or modifications of the product not recommended by the manufacturer.

Returns Policy

If you are dissatisfied with our goods you may return them within 14 days of the dispatch date. Contact us for an authorisation and we will refund your purchase less shipping costs and restocking fees. All returned goods MUST be in AS NEW condition including ALL PACKAGING and DOCUMENTATION / MANUALS etc.

Please note:

  • The product returned will attract a 20% restocking fee.
  • The customer must pay the delivery costs.
  • Non standard, custom made or a specially manufactured or imported products are not returnable.
  • Semiconductors, books and software are not refundable

Full Terms and Conditions

By placing an order with Ocean Controls, you agree to be bound by our Terms and Conditions of Trade.

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