CTI - Model GG-NH3 -Ammonia Gas Detector
Industrial Gas Detector for Ammonia (NH3); designed for harsh industrial environments in the food industry including: food processing, blast freezers, engine rooms, fishing vessels, outdoor locations, and more.
- Designed “food industry tough” for Engine Rooms, Freezers, Docks, Blast Cells, Food-Processing areas, Refrigeration Systems, Breweries, Refineries, and more.
- The GG-NH3 uses both electrochemical and catalytic bead ammonia specific sensor technology, designed to adapt to harsh industrial environments.
- Ammonia Electrochemical Sensor Elements are equipped with SAFECELL® technology which checks the electrical viability of the electrochemical cell every 40 seconds. If it is determined that the cell is failed or missing; the 4-20 mA output will drop to 0.5 mA and fault.
- Circuit board sealed in potting material to protect sensitive sensor components and copper tracing from corrosion.
- Environmentally adaptive, NEMA 3RX heated enclosures safe for outdoors and washdown areas.
- GG-NH3 Transmitters are targets gas, range, and sensor technology specific.
- Built in 3 stage heater for freezing temperatures.
- Includes a 2 year warranty on sensing element and transmitter.
- SGS listed to UL 61010-1, and CSA C22.2 No. 61010-1-12
Enclosure: Polycarbonate: Injection-molded, NEMA 3RX washdown duty, with hunged lid and captive screw
Stainless Steel: 18 GA, NEMA 3RX washdown duty, with hinged lid and captive screw
Dimensions: 7.7″ H x 6.7″ W x 3.8″ D
Wiring Connection: 3-conductor, shielded, stranded, ≥ 20 AWG cable (Belden 8772 or equivalent) up to 1500 ft
Terminal Block Plug (Field Wiring): 26-12 AWG, torque 4.5 lbs-in
Output Signal: 4-20 mA linear output
Input Power: +24 vdc
Detection Method: Diffusion
Sensor Technology: Electrochemical, Catalytic bead
Response Time: T50: < 30 seconds | T90: < 60 seconds
Accuracy: +/- 5%
Zero Drift / month: < 0.1% full scale
Span Drift / month: < 3% full scale
Linearity: +/- 0.5%
Repeatability: +/- 1% full scale
Operating Temperature: -50°F to +122°F
Operating Humidity: 5-100% condensing
Certification: SGS listed to UL 61010-1, and CSA C22.2 No. 61010-1-12
Warranty: 2 years sensing element and transmitter
The intelligently adaptive GG-NH3 goes anywhere.
The GG-NH3 utilizes proven electrochemical sensor technology for fast and accurate leak detection. The standard detection range of the GGNH3 provides real-time continuous monitoring of ammonia concentrations accurately down to 5 ppm, with no false alarms.
Every GG-NH3 sensor comes equipped with an intelligent internal temperature control designed to perform in the harshest areas. The controlled environment provides optimum moisture control for extended cell life. The high quality injection-molded polycarbonate enclosure offers excellent chemical corrosion protection and high impact resistance.
The GG-NH3 provides an industry standard linear 4-20 mA output signal compatible with most gas detection systems and PLCs. The output signal is not affected by drastic temperature variations such as washdowns, defrost cycles, etc. SAFECELL checks the electrical viability of the electrochemical cell and drops signal to 0.5 mA when the cell is failed or missing.
One sensor for any environment (low cost & easy ordering)
The standard GG-NH3 sensor is designed to work anywhere, and at a lower base-model price than most competing models. With only one electrochemical sensor for any application; designing, ordering, and maintaining your ammonia detection system is easy. We typically recommend a 0/100 ppm range for all personnel and product protection areas. Higher ranges (0/250, 0/500, 0/1000) are an option to suit higher alarm setpoint areas such
as engine rooms.
Designed “Food Industry” tough
From blast cells to engine rooms, to chemical washdowns of processing areas, the GG-NH3 is prepared to survive in just about any harsh industrial condition. Every circuit board is sealed forever in potting compound, protecting electronic components and copper tracing from corrosion. A specially vented chemical-resistant polycarbonate enclosure protects the sensor from accidental damage, weather, and even direct hose-hits from clean-up crews. Stainless steel enclosures are available for applications which require them.