GFG CI21 for Ammonia in refrigeration plants

GFG CI21 for Ammonia in refrigeration plants

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The transmitter CI21 has been specially designed for detection of ammonia in refrigeration plants. The detection principle “Charge Carrier Injection” (CI) combines the specificity of electro-chemical sensors with the longevity of chemosorption sensors.

 

Cross-sensitivities to lubricants, cleaning agents or hydrogen with the false alarms that occur as a result, are largely eliminated. The sensor signal remains stable over a wide temperature range. The transmitter can be operated at temperatures from -35°C to +55°C with a high degree of accuracy.  Ammonia leaks are rapidly detected. In less than 8 seconds an alarm is triggered, no matter if very low gas concentrations of a few ppm (1 ppm = 0.0001Vol%) or high concentrations in the % vol range are released. The transmitter CI21 covers a wide detection concentration and temperature range of operation, which other sensors do not provide.

  • Tech Info

    • Gas: Ammonia, NH3
    • Detection ranges: 30 .. 200 ppm 30 .. 1,000 ppm 50 .. 10,000 ppm
    • Gas supply: Diffusion through stainless steel mesh and PTFE membrane
    • Humidity: 1 .. 99 % r. h., non-condensing
    • Pressure: 800 .. 1200 hPa
    • Ambient temperature: -35°C .. +55°C
    • Response time: t90 less than 8 seconds
    • Casing protection: IP54, splash water proof  
    • Output signal: 0.2 .. 1 mA 4 .. 20 mA
    • Voltage supply: 10 .. 32 V
    • Cable: Shielded cable 3 x 0.75 mm2 for up to 500 m, 3 x 1.5 mm2 for more than 500 m, PG11 - cable gland
    • Weight: 370 g Dimensions: 82 x 77 x 57 mm (WxHxD)
    • Expected sensor life: 2 years for normal operation (independent from NH3 concentration)
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  • Delivery

    We aim to Delivery products with you within 4 weeks of receipt of order. However, in exceptional circumstances delivery may be up to 6 weeks due to manufacturer lead times. Please inform us if you require fast delivery as we will do our utmost to expedite your order.

  • Quantity Orders

    Please contact us directly to discuss quantity purchases and additional discounts.  We will subsequently provide you with a formal quote with the applied discount, which will be valid for 30 days 

  • Hire

    Many of the products you have seen are available for hire, so feel free to contact us if you would prefer to hire this instrument.