Millenium LEL
GTA Millenium Series Infrared hydrocarbon detector is a single source dual wavelength instrument. The sensing and reference elements are self-compensating for optical integrity and other signal inhibitors. The industry standard 4-20mA analog output provides remote alarm, fault and calibration signals.
KEY FEATURES
- CSA & FM Performance Approved
- Infrared sensing technology
- Virtually maintenance free
- Low cost of ownership, over five years operating life
- Immune to poisoning and etching
- Designed for harsh environments
- Explosion proof
- Compact & lightweight
- Fast response time
- Smart calibration
- Self-compensating optical bench
- No moving parts
- Heated optical chamber
- Low power consumption
- Operates in constant hydrocarbon background
- Operates in anaerobic atmospheres
- Fault indications for all failure states
- Routine calibrations are not required
- 4 to 20 mA output
- 0 to 100% LFL detection range
- Can be coupled with SEC 2000 transmitter for network applications.
- RS-485 communication link available
- Digital Display option available
APPLICATIONS
The GTA Millenium Series hydrocarbon detectors are designed to be used in the same applications where catalytic bead sensors have been applied.
- Refineries
- Gas turbines
- Drilling and production platforms
- Chemical plants
- Fuel loading facilities
- Compressor stations
- Oil well logging
- Wastewater treatment facilities
- LNG/LPG processing and storage facilities
- Transportation facilities
SPECIFICATIONS
| Operating Voltage | 24VDC (18 – 32VDC) |
| Current Draw | 210mA avg, 400mA peak |
| Power Consumption | 5 W Max. |
| Analog Output | 4 – 20 mA (sourced) |
| Range | 0 – 100% LEL |
| Gases | Methane, Propane, and Butane. Other hydrocarbon gases are available |
| Accuracy | ± 3% 0 to 50% LFL ± 5% 51 to 100% LFL |
| Response Time | T50 < 5 seconds T90 < 10 seconds |
| Temperature Rating | - 40C° to + 70°C - 40F° to + 158°F |
| Humidity | 0-99% (non-condensing) |
| Housing Construction | Nickel-plated aluminum and stainless steel. Optional stainless steel model. |
| Approvals | CSA, FM Performance Approved |
| Classification | Class 1, Div. 1, Groups B, C & D |
| Mounting | 3/4" NPT |
| Weight | 2 lbs. (0.9 kg.) |
UNIT STATUS CHART
| Current Output | Status |
| 4-20 mA | Normal measuring |
| 0.0 mA | Unit Fault |
| 0.2 mA | Reference channel fault |
| 0.4 mA | Analytical channel fault |
| 0.8 mA | Unit Warm up |
| 1.0 mA | Optics fault |
| 1.2 mA | Zero drift fault |
| 1.6 mA | Calibration fault |
| 2.0 mA | Unit Spanning |
| 2.2 mA | Unit Zeroing |
| 4.0 mA | Zero gas level |
| 5.6 mA | 10% LEL |
| 8.0 mA | 25% LEL |
| 12 mA | 50% LEL |
| 16 mA | 75% LEL |
| 20 mA | 100% LEL |
| 20.1-23 mA | Over range (> 100 %) |
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