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FLD 4000 Ammonia Gas Detector by Photonic Innovations

Photonic Innovations FLD 4000 Ammonia Gas Leak Detector in Australia at Aegis Sales & ServiceThe FLD 4000 by ammonia gas leak detector by Photonic Innovations offers the following features:

  • No repeat calibration or sensor replacement required
  • Low detection limit: 10ppm
  • Fast response time: less than 1 second
  • High accuracy and reliability: +2.5% (min. 1ppm)
  • Real time ppm display quantifies leak
  • Integrates with SCADA
  • Ergonomic design
  • IP54 rating
  • 2 year warranty

 

 

    contact us  for more information about the FLD 4000 from Photonic Innovations

Benefits

No False Alarms

Our laser sensors are programmed to lock onto a unique absorption feature of the target gas, in this case ammonia. This renders an extremely high detection fidelity. This technology allows it to avoid the false alarms common in chemical sensors that occur due to cross gas reactivity and sensor depletion.

Virtually No Maintenance Required

Our laser sensors are not depleted upon exposure to ammonia and other toxic gases. This means that frequent maintenance/calibration is no longer a requirement. With no filaments or chemical components, there is no need to calibrate the device and no need to replace sensors. 

Specifications

Target Gas Ammonia NH3
Lower Detection Limit 10 ppm
Accuracy +2.5% (min. 1ppm)
Resolution 1 ppm
Response Time <1 sec
T90 <20sec
Material Power Coated Steel
Cable entry 3 x M20 (one blanking plug included for unused entry)
Dimensions Length 324mm  Width 134mm  Height 134mm
Weight 6.5 kg
Display type LCD Dot Matrix display; concentration and messages
Electrical Supply 7-40 VDC 2.5 watts max
4-20mA Output, 2 wire connector External supply +Vmin - 40V
Relays 2 x 2 A @250VAC, NO and NC
Communication RS485 Protocol
4-20mA Output 0mA open circuit
2mA fault
4mA zero gas level
20mA full range range gas level
22mA over-range gas level
Voltage Output 0-5V, 10bit; on request
Alarms Can be set with standalone flashing lights and alarm
Can be integrated into Central Monitoring Systems
IP Rating IP54
Operating Temperature Typically +5°C to +40°C (For Engine Rooms)
Operating Humidity 0 to 95% (non condensing)
Operating Pressure 90 to 110 kPa
Storage Conditions 20°C to +40°C, < 80% humidity
Electrical Compliance Electrical Safety
AS/NZS CISPR 11: 2011
EN 55011: 2010
IEC/ CISPR 11 Ed 5.1: 2010
FLD 4000 IS NOT AN EX RATED PRODUCT.
Complies with Refrigeration System Safety Guidelines AS/NZS 5149.3
Warranty 2 years warranty (subject to terms of service)

+Vmin depends on external loop impedance at 22mA. eg Vmin = 12v5 @ 250 Ω loop impedence

FAQs

1. How can I be sure that the equipment won’t move out of calibration?
The laser diodes are positioned on the ammonia absorption line via a temperature controlling circuit and the lasers internal injection current. Both these parameters are factory set and tightly controlled via feedback loops. Any kind of drift will result in an error signal/notification from the device. The equipment is factory calibrated to gas concentrations and as long as the laser is positioned on the target gas absorption line, you can be sure that the device will not give incorrect gas readings.

2. Will dust, moisture and other particulates interfere with the laser and trigger a false alarm?
No, the system is calibrated to recognise a distinct absorption pattern that can only be generated by the target molecule. Note, that if dust, moisture or other particulates reach a critical level the system will trigger a
fault (see error codes) which will notify the user that a fault in the system has occurred.

3. Can the units detect lower explosive limits (LEL)?
Currently the equipment is specifically built to detect minute levels of ammonia to ascertain toxicity levels only. We will have an ex rated product witin months.

4. What happens if another gas has a very similar absorption feature as ammonia?
The lasers that we use are very specific to a single ammonia absorption line. The absorption lines are picked after extensive surveying and experimentation and the product virtually has no cross sensitivity to other gases.

5. What happens on a power failure? Does each unit need to be reset to the specific absorption feature? How is this done?
The system is programmed to fix the parameters on the laser to localise the ammonia absorption frequency line. When power is switched back on the unit will simply go back to the right absorption feature. The only time you will touch the device is while installing it :) (connect power and 4-20mA loop).

We do recommend that your authorised person conduct a functional test on the machine once power has been restored. 

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