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产品名称： 257N12连续露点分析仪



Specifications

Method of Detection

 Dielectric polymer sensor that changes capacitance with moisture variation

Ranges Available

 -40°F to +104°F (-40°C to +40°C) Dew Point

Resolution

 1°F (1°C) Dew Point

Accuracy & Repeatability

 ±1°F (±1°C) Dew Point

Drift

 Less than 1% of full scale per month

Response Time (T-90)

 Less than 60 seconds after initial purge down

Ambient Temperature Range

 -18 to 49 ºC
0 to 120 ºF

Linearity

 Better than 1°F (1°C) Dew Point

Size & Weight

 16" W x 14" H x 8" D @ 10 lbs (41 x 36 x 20 cm @ 4.5 kg)

Power

 115 VAC, 60 Hz for recharging
220 VAC, 50 Hz available

Output Options

 4-20 mA or 0-1 VDC

Alarms

 High or low dew point alarms with LED (optional)

Hazardous Area Rating Options

 General Purpose, Non-Hazardous


Applications
    For continuous dew point analysis at atmospheric pressure of air, heat treat furnace gases, compressed air lines and other applications with oils or contaminants present.



Features
  • Standard range of -40 to +68°F (-40 to +20°C) dew point. Other ranges and units of measure available on request
  • Rugged design that is easy to operate
  • Use on any non-corrosive gas
  • Long-life dielectric polymer sensor
  • May be calibrated in the field
  • Bright digital readout
  • Built in sample pump, filter, and flow meter
  • NEMA 12 enclosure is standard
  • Sensor easily replaced if contaminated
  • Factory calibrated to NIST traceable standards




Options
  • Recorder outputs of 0-1V or 4-20mA
  • Calibration kit
  • Also available in a NEMA 4 or 19" rack mount cabinets
  • Carbon potential calibration using input from customer supplied Type 'K' thermocouple




Calibration
  • Calibration is easily performed in the field using the optional calibration kit (Part no. NDPCK-02)
  • Alternatively, the analyzer may be returned to Nova for a certified calibration
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