SHAW SADP

Analogue Portable Dewpoint Meter

Description

The world renowned SADP portable dewpoint meter offers an easy to use hygrometer for fast and reliable trace moisture measurement.

The key to the SHAW automatic dewpoint meter is the unique desiccant head and sensor assembly which allows the sensor to
be kept dry between tests. This ensures that the instrument is always available for rapid spot checks of moisture in gases and compressed air.

The SADP portable dewpoint meter is fully self contained and certified intrinsically safe for use in hazardous areas to ATEX and IECEx standards, without the need for any additional accessories such as a Zener barrier or signal isolator. It is also CE and UKCA approved.

The dewpoint meter is supplied, ready for use, with batteries installed, a Certificate of Calibration traceable to National and International Humidity Standards at NPL, two metres of PTFE sampling hose, instruction manual, pressure calculator, screwdriver and a specially designed heavy duty leather case with shoulder strap.

FEATURES

Key Features:

Guaranteed accuracy: ±3 °C to ±4 °C (±5.4 °F to ±7.2 °F) dewpoint
Intrinsically safe to ATEX: Ex II I G Ex ia IIC T6 Ga and IECEx: Ex ia IIC T6 Ga, with CE and UKCA approval, for use in hazardous areas.
Various ranges: overall range -100 °C to +20 °C (-148 °F to +68 °F) dewpoint
Extended range available for 0-10 ppm (TR version only)
Analogue display, indication in °C, °F and ppm(V), LCD display indication in °C and °F
Desiccant dry-down chamber assembly for instantaneous readings
Standard “C” type battery operation
Self-contained, robust and reliable
Fully portable
Simple to operate
Over 150 hours continuous operation
AutoCal (automatic calibration) function
Supplied with a Certificate of Calibration traceable to National and International Humidity Standards at NPL

SPECIFICATION

SPECIFICATIONS

• Sensing Element: Element SHAW Ultra High Capacitance Aluminium Oxide Sensor

• Ranges

Dewpoint = 0.1 °C/0.1 °F resolution
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)
TR-G (TR-GREY):	-80 to 0 °C dewpoint, 0 – 6,000 & 0 – 10 ppm(V)
TR-R (TR-RED):	-80 to -20 °C dewpoint, 0 – 1,000 & 0 – 10 ppm(V)

• Intrinsic Safety Certification
ATEX: Ex II 1 G Ex ia IIC T6 Ga IEC
Ex: Ex ia IIC T6 Ga

• AutoCal: Field calibration/span check facility. Activated and operated via potentiometer on the front of the instrument

• Accuracy: ± 3 °C (± 5.4 °F) dewpoint (Red/Silver) ± 4 °C (± 7.2 °F) dewpoint (all others) NPL traceable -90 °C to +20 °C (-130 °F to +68 °F)

• Response Times
Wet to dry: -20 °C to -60 °C (-4 °F to -76 °F) – less than 120 secs
Dry to wet: -100 °C to -20 °C (-148 °F to -4 °F) – less than 20 secs

• 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 MECHANICAL

• Dimensions and Weight Overall dimensions: 200 mm (w) x 225 mm (d) x 278 mm (h) Height (328 mm with head extended) Weight 4.5 kg

• Operating Pressure Atmospheric to 0.3 barg

• Operating Humidity (External) Maximum – 95% RH non-condensing

• Operating Temperature -20 °C to +50 °C (-4 °F to +122 °F) Storage Temperature-20 °C to +40 °C (-4 °F to +104 °F)

• Sensor Protection 316 sintered stainless steel filter – 50 micron

• Weatherproof Classification IP66/NEMA 4X