| Hazardous Area Certification | II 2 G EExd IIB + H2 T4 Tamb =60°C Certificate number TRL04ATEX11060X CSA (US) certified to Class 1, Div 1, Groups B, C & D, T4. Certificate number 1722693. |
| Hydrocarbon Dew-Point Measurement |
| Measuring technique | DARK SPOT™ fixed sample analysis. Direct photo-detection of hydrocarbon condensate at hydrocarbon dew-point temperature. |
| Sensor cooling | Automatic via 3-stage Peltier effect electronic cooler under adoptive control |
| Maximum range | Up to Δ 55°C measurement depression from Main Unit operating temperature |
| Accuracy | ±0.5°C hydrocarbon dew point (single and multiple condensible component analysis) |
| Sample flow | 0.03 m3/hr (0.5 l/min) - alarm standard |
| Measurement frequency | 6 cycles/hour (recommended)
12 cycles/hour (maximum) |
| Water Dew-Point Measurement (optional) |
| Measuring Technique | Michell Ceramic Moisture Sensor |
| Range | Calibrated from -100 to +20°C dew point |
| Accuracy | ±1°C from -59 to +20°C dew point
±2°C from -100 to -60°C dew point |
| Sample flow | 0.06 to 0.3 m3/hr (1 to 5 ln/min) - alarm standard |
| Pressure Measurement |
| Units | MPa, Barg, psig |
| Range | HCdp: 0 to 100 Barg
Wdp: 0 to 200 barg |
| Accuracy | ±0.25 % FS |
| Hydrocarbon Dew-Point Analyser |
| Resolution | Hydrocarbon and water dew point: 0.1°C
Pressure: 0.1 MPa and Barg, 1 psig |
| Sample gas supply | Natural gas up to 100 Barg, pressure regulated in sampling system. |
| Enclosure | EExd cast enclosure with removable glass window viewing port. Internally heated for condensation protection. |
| Sample gas connections | 1/4" NPT female ports for both hydrocarbon and water dew-point channels. Sampling system: 6 mm OD Std / ¼" OD optional |
| Operating environment | Indoors/Outdoors -20 to 50°C. Max 95 % rh. |
| Power supply | 90 - 264 Vac 50/60 Hz, 200 W Main Unit;
300W c/w indoor sampling system;
400W c/w outdoor sampling system |
| Weight | Main Unit 22.5 Kg
42 kg (approx) c/w Sampling System (indoor)
57 kg (approx) c/w Sampling system (outdoor) |
| Integrated display/keyboard | Touch screen with vacuum fl uorescent display |
| Outputs | Modbus RTU, RS485 @ 9600 baud rate. Two 4-20 mA linear (non-isolated) outputs, user configurable for any combination of dew point or pressure parameters. |
| Alarms | Process and analyser status via software register and display annotation. Integrated low flow alarms for each sample flow. Analyser status fault flag 23mA on mA output 1. |
| Remote Interface | Optional for indoor safe area installation |
| Host capacity | Up to 31 Michell EExd Process Instrumentation Range analysers in any combination of models via Modbus |
| Display | Backlit color 15 cm/6" LCD |
| User interface | Integral mouse, on-screen keyboard |
| Function | View and modify analyser operating settings. Record parameters to file and view virtual chart recorder Analyser diagnostics. |
| Ports | LAN, USB2, Modbus Retransmission |
| Data download | CSV (comma separated variable) format for easy import to ExcelTM |
| Remote access | OPC (OLE for Process Control) over a LAN Imbedded web page/unique IP address for PC access. Remote data reading via modbus RTU. |
| Power supply | 100-280 V, 50/60 Hz |
| Plant control integration | ActiveX components to be used by software programmers for integration of Modbus protocol into a general plant software system. |
