Portable Dewpoint Meter model SADP

offers an easy to use hygrometer for fast and reliable trace moisture measurement. Designed to operate at atmospheric pressure, the Model SADP features a large, easy to read analogue indicator scaled in °C dewpoint, °F dewpoint and corresponding parts per million (ppm(v)) range. The TR versions of the Shaw SADP offer the 0-10 ppm(v) range expanded over the full scale, which is selected by means of the rotary switch on the front panel. This allows for accurate measurement below 10 ppm(v).

Features:

  • Intrinsically safe to ATEX and IECEx standards
  • Various ranges: overall range -100 °C to +20 °C (-148 °F to +68 °F) dewpoint
  • Extended range for 0 - 10 ppm (TR version only)
  • Analogue display, indication in °C, °F and ppm(v)
  • “AutoCal” calibration featureUSP and compliant
  • Desiccant dry-down chamber for instantaneous readings
  • Standard“C” type battery operation
  • Self-contained, robust and reliable
  • Fully portable
  • Simple to operate
  • Over 150 hours continuous operation
  • Supplied with Calibration Certificate traceable to National & International Humidity Standards

Specifications:

  • Sensing Element: Shaw Ultra High Capacitance Aluminium Oxide Sensor
  • Ranges
    • P (Purple): -100 to 0 °C dewpoint, 0 - 6,000 ppm(v)
    • S (Silver) : -100 to -20 °C dewpoint, 0 - 1,000 ppm(v)
    • G (Grey) : -80 to 0 °C dewpoint, 0 - 6,000 ppm(v)
    • R (Red) : -80 to -20 °C dewpoint, 0 - 1,000 ppm(v)
    • B (Blue) : -80 to +20 °C dewpoint, 0 - 23,000 ppm(v)
  • Intrinsic Safety Certification :
    • ATEX: II 1 G Ex ia IIC T6 Ga
    • IECEx: Ex ia IIC T6 Ga
  • AutoCal: Field calibration/span check facility. Activated and operated via potentiometer on the front of the instrument
  • Factory Calibration: Supplied with Certificate of Calibration traceable to National Physical Laboratory (NPL)
  • Accuracy:
    • ± 3 °C/ ± 4 °C (± 5.4 °F/ ± 7.2 °F) dewpoint
    • NPL traceable -90 °C to +20 °C (-130 °F to +68 °F)
  • Response Times:
    • Wet to dry: -20 °C to -60 °C - less than 120 secs
    • Dry to wet: -100 °C to -20 °C - less than 20 secs
  • Sample Flow Rate:
    • Flow independent but ideally 2 to 5 litres per minute
    • Max: 20 litres/min
  • Warm Up Time: 5 seconds
  • Display: Analogue: 120 mm Taut Band indicating meter showing dewpoint and ppm with amplified range of 0 - 10 ppm on TR versions.
  • Power Supply: 9 V DC – six “C” type batteries (included)
  • Battery Life: In excess of 150 hours continuous operation
  • Resolution: 0.1 °C, 0.2 °F dewpoint or 0.1 ppm(v)
  • Repeatability: Better than ±0.5 °C (±0.9 °F) dewpoint

Accessories:

  • SU3 Sample Plate
  • SU2 Sample Plate
  • Pressure Regulator
  • Flow Meter
  • Service Kit