产品名称：天然气在线水露点分析仪

Product Features

• EExd Flameproof ATEX and CSA certified
• Complete Zone 1 or 2 installation
• Low wattage AC supply only utility requirement
• Single- or dual-channel measurement
• Calibration traceable to NPL (UK) and NIST (USA)
• Field adjustment maintenance by user adjustment or unique sensor exchange service
• Range -120 to +30°C dew point, 0.001 to 30,000 ppm_V
• Moisture content units in ppm_V, mg/Nm-³, Lb/mmscf
• Integrated electronic pressure measurement
• Modbus RTU and 4-20 mA linear signals
• Process and instrument status volt-free alarm contacts
• Remote global access options
• Touch screen control

  Technical Specification

  MAIN UNIT Measured and Calculated Values Dew point °C & °F Conversions Automatic Pressure Compensated Conversions ppmV for Natural Gas and Ideal Gas Lb/mmscf and mg/Nm-³ for Natural Gas Dew point at a pressure input by the User for Natural Gas and Ideal Gas Calculations for natural gas moisture content based on either ISO 18453 or IGT#8 to customer order preference Keypad/Display Capacitive touch-screen through glass Display: Vacuum Flourescent Data Logging A rolling maximum of 150 data logs is available. Each log records time, date, moisture and pressure values for each channel. 5 minutes minimum and 60 minutes maximum logging intervals can be set by the user Communication & Outputs Four non-isolated 4-20 mA channels; 500 Ω maximum load. Range and value settable by the user Modbus RTU @ 9600 baud-rate. Alarms Two volt free contacts per channel; one process value and one instrument status. Also available via Modbus communications Main Unit Enclosure Internal temperature control for condensation protection and stable analysis conditions Type Flameproof EExd Construction Body and lid cast Copper free Aluminum LM25(EN AC-42000). 15mm thick heat resistant glass window. Cable gland entries ½" NPT (female) Finish Chromate primer, Polyester P9010 powder coated (Black). Meets BS3900 Electrical Connections 2.5mm² two part terminals Hazardous Area Certification ATEX Certification Code: Group II, Category 2 G Code EEx d IIB + H2 T4 Tamb -40 +60°C (-40 +140°F) Ingress Protection IP66 (NEMA 4) Measurement Range -120°C dp to +30°C dp (-184 / +86°F); 1 ppbV to 30,000 ppmV Calibration Range -100°C dp to + 20°C dp (-148 / + 68°F); 10 ppbV to 23,000 ppmV Accuracy Dew point: ±1°C between -59.9 & + 20°C dp (±1.8°F: -75.9 to +68°F dp) Moisture content: ±10% of reading Dew point: ±2°C between -60 & -100°C dp (±3.6°F: -76 to -148°F dp) Moisture content: ±20% of reading Analysis Pressure: ±0.25% FS Measured Resolution 0.1°C: -80 to + 20°C dp (0.2°F: -112 to + 68°F dp) 1°C: -100 to -80°C dp (2°F: -148 to -112°F dp) Displayed Resolution Dew point: 0.1°C (0.2°F) Lb/mmscf: >999.9 = 0.1, <999.9 = 0.02 ppmV & mg/Nm-³: <100 = 0.001; >100 <1000 = 0.01; >1000 = 0.1 MPa & Barg: 0.1 p.s.i.g.: 1.0 Temperature Coefficient Algorithm compensation Operating Pressure Max. 206 Barg , (2987 p.s.i.g.) Sample Gas Connections ¼" NPT (female) Sample Flow Rate 0.0-0.4 m³/h (0-6.66 l/min) Power Supply 90-264 VAC, 47 to 63 Hz, 110 to 300 VDC, 180 W Operating Environment Indoor/Outdoor: -20°C to +60°C (-4 + 140°F) Shaded location: Max 95% RH In/Out Port Connections ¼" NPT (female) Remote Interface Optional, for indoor safe area installation Host Capacity Up to 31 Michell EExd Process Instrumentation Range analyzers in any combination of models via Modbus Display Backlit color 15cm/6" LCD User Interface Integral mouse, on-screen keyboard Functions View and modify analyzer operating settings Record parameters to file and view virtual chart recorder Analyzer diagnostics Ports LAN, USB2 Data Download CSV (comma separated variable) format for easy import to Excel™ Remote Access OPC (OLE for Process Control) over a LAN Imbedded web page/unique IP address for PC access Power Supply 100-280 V, 50/60 Hz