DewPatrol – PhyMetrix Compressed Air Moisture Analyzer

• Range: -110°C to +20°C dewpoint ( -166°F to +68°F dewpoint )
• Accuracy: ±2°C temperature corrected
• Repeatability: 0.8°C
• Response time: 95% of step change in 3 min.
• Sample flow: >1 LPM

• Range:  -40°C to +70°C
• Accuracy:  ±2°C

• 2 to 300 PSIA ±1%, 316L stainless steel wetted parts, higher pressures can be ordered optionally

• Body: Styrene Acrylonitrile, Max Pressure: 50 psi (3.4 bar) [ this pressure limitation is for the exhaust ]

• Max pressure: 300 psi (20 bar) [ this pressure limitation is for the inlet, and can be utilized only if outlet is unrestricted

Ergonomics

• Easy to carry or use on desktop, lightweight 2 Lbs
• Easy to read graphic LCD display with user controlled backlight brightness (LCD is readable without the backlight)
• Snap dome tactile membrane switches with dynamically assigned legends
• Audible feedback upon button press as well as for warnings and alarms
• Auto scaling graph / histogram on moisture measurement display for stability verification
• Easy to use with verbose built-in context sensitive Help screens
• Battery Saver, with user selectable Auto-power-down times, can also be disabled
• Built-in pressure measurement and pressure corrected moisture readings, simultaneously displayed  with the uncorrected reading for greater ease of understanding
• Verbose Status bar with indications, warnings and audible errors
• User selectable locking with or without a password.
• Built-in battery backed clock calendar

• External AC Universal Power adapter (100-240VAC 50-60Hz) with USB connector
• Rechargeable Li-Ion battery, recharges through the USB connector from the PC or from the supplied universal power adapter
• Sampling system and sensor are isolated from electrical interface and supply grounds
• Measurement resolution of moisture sensor: 1pF resulting in less than 0.01 ̊C
• External power and I/O: USB mini B female connector – IP67 / IP68 with Sealing Cap
• Alarm Relay Option – 3A, 250VAC contacts
• AV alarm >80 dB @ 3′, 3 jumbo Red LEDs 5100 mcd each.

Mechanical

• 1/4″ NPT Female Swivel inlet, allowing connection with standard quick connect
• Aluminum and Viton wetted parts, small surface area sampling chamber for fast response time.
• Enclosure
  • ABS (UL94-HB), with EDPM gasket to meet IP65, NEMA-4X
  • Dimensions- H: 5.71″ (145mm) W: 4.13″ (105mm) D: 2.56″ (65mm)
• Weight Total: 2 Lbs (~1 Kg)
• Pressure: Inlet 300 psi (20 bar) Outlet 50 psi (3.4 bar)

• dewPatrol Analyzer: -20°C to +60°C
• Electronics: -40°C to +85°C
• Moisture Sensor: -20°C to +60°C
• Pressure Sensor: -20°C to +85°C
• LCD operating: -20°C to +70°C storage: -30°C to +80°C
• Enclosure: -40°C to +60°C

• NIST traceable calibrations
• Units of measure: °C & °F dewpoint, ppmV, ppmW, µB H₂O vapor pressure, grams of H₂O / m³,
  Lbs H₂O /10⁶ standard cubic feet in Natural Gas. (All units auto-scaled)
• Digital & Analog I/O:  USB, 4/20mA with HART®
• Data logging – single point, multipoint, time stamping, each sample records: dewpoint, temperature and pressure,  ( memory > 4,000 samples)
• Virtual Analyzer PC software for training and evaluation, allows the user to experience the exact interface on their own PC with voice explanations