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SDHmini-Ex Hand Held Dewpoint Meter

Brand: Shaw Moisture Meters

Model SDHmini-Ex hand held hygrometer sets new industry standards for portable dewpoint measurement equipment. Intrinsically safe and portable, this hygrometer offers quick and reliable spot check measurements of dewpoint and trace moisture content for industrial applications. Robust and lightweight, incorporating an intuitive menu structure and advanced digital features, enabling the user to perform moisture measurements in the toughest of environments, quicker and easier than ever before.

Certified intrinsically safe to ATEX, IECEx and UL standards for use in hazardous areas. the SDHmini-Ex is the perfect hand held hygrometer for accurate and reliable measurements of dew point in compressed air and process gas, suitable for use in a wide range of industries, including power generation, semi conductor manufacture and pharmaceuticals.

The robust housing contains the SHAW moisture sensor, desiccant dry-down chamber assembly and gas sample ports. Also incorporating advanced  signal conditioning circuitry, memory management and a full colour graphics LCD display. An onboard rechargeable lithium-ion battery provides over 150 hours of continuous operation on a full charge and the hygrometer is charged via USB or plug type to suit your geographical location. The intuitive menu system is simple to operate and can be viewed in the following ten language options: English, German, French, Spanish, Portuguese, Russian, Italian, Chinese, Japanese and Korean.

This dewpoint hygrometer includes real time data logging with download to PC capability and up to 300,000 readings can be captured and displayed via USB. Incorporating Bluetooth interfaces for PC communication and printing with a compatible Bluetooth printer also available. Its powerful microelectronics, selectable engineering units, intuitive menu structure and incorporation of the SHAW AutoCal function, allows the operator to achieve a meaningful reading in 5 – 10 minutes.
Features
  • Certified intrinsically safe to ATEX, IECEx and UL standards for use in hazardous areas
  • AutoCal function (Automatic Calibration)
  • Desiccant dry down assembly for high speed measurements
  • User selectable engineering units – °C, °F, ppm(v), ppm(w), g/m³ and lb/MMSCF
  • Accuracy of ±2 °C (±3.6 °F)
  • Full colour graphics LCD display with secondary display
  • Various measurement ranges available from -100 °C to +20 °C (-148 °F to +68 °F) dewpoint
  • 10 language options
  • Rechargeable battery – over 150 hours of continuous operation on full charge
  • Advanced data logging and download to PC
  • USB charging and connection to PC interface
  • Bluetooth connection and printing
  • Robust and durable enclosure, designed for use in the toughest environments
  • Truly portable and lightweight: less than 1.75 kg (3.8 lbs)
  • Certificate of Calibration traceable to National & International Humidity Standards

Specifications

Sensing Element

  • SHAW Ultra High Capacitance Aluminium Oxide Sensor

Ranges

  • Dewpoint = 0.1° C/0.1° F resolution

Approvals

  • CE and UKCA

AutoCal

  • Field calibration/electronic span check facility. Performed by user following simple menu driven instructions

Accuracy

  • ± 2° C (± 3.6° F) dewpoint, NPL traceable -90° C to +20° C (-130° F to +68° F)

Sensor Calibration

  • Supplied with Certificate of Calibration traceable to National and International Humidity Standards at NPL

Repeatability

  • Better than ± 0.3° C dewpoint

Pressure Correction

  • Integral calculator to display pressure dewpoints. Gauge pressure can be entered in kPa, kg/cm2 , bar or psi

Temperature Coefficient

  • Temperature compensated for operating range.

Sample Flow Rate

  • Flow independent but ideally 2-5 litres per minute. Max.: 10 litres per minute

Response Times

  • Wet to dry: -10° C to -60° C (+14° F to -76° F) - less than 120 seconds
  • Dry to wet: -100° C to -20° C (-148° F to -4° F) - less than 20 seconds

Calibration Warranty

  • 12 months from date of dispatch

Dimensions and Weight

  • Overall dimensions: 97 mm (w) x 147 mm (d) x 211 mm (h (259 mm with head extended)) (313/16 x 525/32 x 85/16 (1013/64) inches) 1.75 kg (3.8 lbs)

Operating Pressure

  • Maximum 0.3 bar (4 psi)

Operating Humidity (External)

  • Maximum - 95 % RH non-condensing

Operating Temperature

  • -20° C to +50° C (-4° F to +122° F)

Storage Temperature

  • -30° C to +70° C (-22° F to +158° F)

Sensor Protection

  • 316 sintered stainless steel filter - 50 micron

Weatherproof Classification

  • IP66 NEMA 4X

Mechanical Warranty

  • 24 months in case of faulty workmanship and defective parts

Electromagnetic Compatibility (EMC)

  • EMC Directive 2014/30/EU BS EN 61326-1

Display

  • Full colour graphics LCD, 320 x 240 (24 bits) resolution

Power Supply

  • Rechargeable Li-ion battery. Battery charger included.

Battery Life

  • In excess of 150 hours of use between charges

Time to Full Charge

  • 12 hours

Resolution

  • 0.1° C, 0.1° F dewpoint or 0.1 ppm(V)

Data Logging

  • 300,000 readings. Date and time stamped data, stored in chosen units of measurement, for download to PC.

Data Location

  • 20 separate Location IDs can be entered (alphanumerical) by user for data collection at preprogrammed locations.

Sampling Rates

  • User selectable (in intervals of five seconds) from once every five seconds to once a day

Data Display

  • Numerical and graphical

Real Time Recording

  • Device can be programmed to monitor, record and graphically present data in real time directly to PC.
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