Gas measuring system for monitoring the ammonia (NH3)-concentration in animal barns
Application
- Measuring system for monitoring the ammonia (NH3)-concentration in animal barns
- Integrated measurement: temperature, humidity, pressure
- Maintenance friendly
- Installation inside the barn
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Options:
· Measurement of Carbon Dioxide (CO2)· Switching between two measuring points
Features
- Measuring Procedure: Discontinuous measurement including automatic flushing / filter system for long-term stable measurements.
- Measuring Cycle: Time between two measurements: 1 and 12 hours (adjustable); constant output of measured values during measuring pauses
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Transmitter (Standard):
· NH3-Stable with measuring range 0…200 ppm NH3
· Lifetime > 1 year (DLG-Test report 6768 recommends change of sensor element every six months) - Flushing-/Filter-System: Filter simply exchangeable and lifetime of over one year
- Integrated Measurement: Temperature (T), relative humidity (r. H.), absolute pressure (p)
- Transmitter (Option): CO₂-5000-IR4 with measuring range 0…5000 ppm CO₂
- Measuring Points: 1 (Standard) and/or 2 including switching between measuring points (as Option)
- Operation Temperature: -10 °C bis +40 °C
- Storage Temperature: -25 °C to +60 °C (system not in operation)
Control Unit
- Control Unit: ExTox ET-CS (integrated, installed on DIN-rail)
- Number of transmitters: 2 (prepared for NH3 and CO₂ transmitters)
- Integrated Sensors: T, r. H., p
- Indication: Illuminated graphic display for indication of measured values, messages and alarms
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LED indication:
· Alarm (2 x 2 x red)
· Channel operation (2 x green) and fault (2 x yellow) - Remote indication of measured values (as an option)
User Interface:
- Menu guided system via display and six keys
- Password protected
- Zero point and sensitivity adjustment at ET-CS
- Maintenance mode
Alarms/Messages:
-
2 freely adjustable alarm levels per transmitter
· Over-scale
· Under-scale - Latching of each alarm configurable
- Flow-rate monitoring of measured gas (integrated)
Relays, potential free:
- 4 change-over contacts 230 V / 4 A (total switching current: max. 10 A), freely configurable with alarms and fault messages
- Switching selectable: normally open or normally closed
- Horn reset adjustable (can be quit in spite of upcoming message)
Inputs:
- 2 Analogue inputs 4…20 mA (usable for NH3, CO2– or any other 4…20 mA-Transmitter)
- 2 Digital inputs, 24 V DC, potential free
Outputs:
- 2 Analogue outputs 0-10 V or as an option 4…20 mA
- Interface RS232 or RS485/RS422 (configurable)
- Interface RS232 or Ethernet/LAN (as an option)
Options:
- Data logger incl. SD-Card (integrated)
- Remote display (external)
Mechanical Data
- Dimension: 600 mm x 600 mm x 200 mm (W x H x D)
- Housing: Wall mounted housing with door, viewing window, mounting plate, PU-foamed-in door sealing, cam-lock, IP66
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Material of Housing:
· Fibreglass-reinforced unsaturated polyester
· Viewing window: Glazed acrylic, 3.0 mm - Weight: appr. 20 kg
- Installation: Wall mounted / Hanging installation
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Sampling of measured gas:
· Directly from the air inside the barn
· As an option: via PTFE-hose (Ø inner/outer: 4/6 mm, hose length sampling point -> system: max. 20 m)
Electrical Data
- Power Supply: 230 V AC
- Power Consumption: appr. 200 W
-
Connections:
· Clamps: power supply 230 V (L, N, PE)
· ExTox ET-CS: in- and outputs (plugable)
· Cable glands 5 pieces M16 x 1.5
Options / Spares
- Art.-Nr. 211288 Transmitter Sens NH3-Stable
- Art.-Nr. 211272 Transmitter Sens CO2-5000-IR4
- Art.-Nr. 307000 Control Unit ET-CS
- Art.-Nr. 940439 Extension: Temperature/relative humidity/absolute pressure
- Art.-Nr. 920080 Extension: Analogue output 4…20 mA (not potentially isolated)
- Art.-Nr. 825025 Extension: Ethernet module
- Art.-Nr. 825026 Extension: Data logger module incl. SD-Card (940439, 920080, 825025, 825026 will be integrated in ET-CS)
- Art.-Nr. 825019 Remote Indication 4-channels
- Art.-Nr. 940398 Filter NH3-Stable
- Art.-Nr. 862003 PTFE-Hose 4x6
- Art.-Nr. 940348 Gas pump
All control units of the ET-Series could be used in combination with all ExTox Transmitters ExSens(-I) and Sens(-I)
Our control units in combination with the ExTox Transmitters comply with the requirements of EN 60079-29-1, EN 45544-1 to EN 45544-3 and EN 50104 for Gas Detection Systems. Furthermore are those in conformity to the European Directives 2014/34/EU (ATEX), 2014/30/EU (EMV), 2014/35/EU (LVD).
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