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Over time, various factors such as exposure to contaminants, age, incorrect operation, sensor deterioration, a drift in electronics or exposure to corrosive gases, can contribute to dewpoint instruments losing accuracy and reliability. To maintain accuracy and reliability, we advise an annual service and calibration. For instruments used in critical applications or aggressive environments, more frequent service and calibration intervals are recommended. Our Calibration Laboratory Engineers perform routine servicing, commissioning, fault finding, repairs and installation services in accordance with our accredited quality system. Our calibration range of -90 °C to +20 °C dewpoint is traceable to National and International Humidity Standards at the National Physical Laborarory (NPL). SHAW products are developed to be reliable, easy to install and simple to operate, We are committed to providing the highest quality products and services for accurate and reliable moisture measurement.

Ideal for a wide range of applications when precise measurement, control and continuous monitoring of trace moisture is required. Utilising the SHAW sensor, to maintain signal integrity over distances up to 1,000 metres. Superdew 3 includes a fully controllable, linear, 4-20 mA output, RS485 communications, two programmable alarm relays and a universal power supply. Incorporating the unique AutoCal function, which allows the sensor to be brought back into equilibrium without the need for any special equipment, thereby reducing downtime, minimising calibration costs and obtaining immediate verification of the dew point system and allowing users to maintain optimum measurement accuracy between laborartory calibrations. Superdew 3 also includes RS485 capabilities, enabling the user to set the instrument's address and communication baud rate used when it is communicating with a PC using RS485 point-to-point communications.

A hand held hygrometer suitable for a wide range of industries. Designed for quick, reliable spot check measurements of trace moisture in gases and dry compressed air. Utilising the proven SHAW ultra high capacitance aluminium oxide sensor, desiccant dry down head assembly and AutoCal function. The intuitive menu system allows simple operation of the instrument and can be viewed in 10 different languages, has real time graphing, screen shot features and selectable engineering units. The rechargeable lithium-ion battery provides over 150 hours of continuous operation on a full charge and the instrument is charged via USB or a plug type to suit your geographical location. Incorporating Bluetooth interfaces for connectivity and printing and advanced data logging with download to PC capability, up to 300,000 readings can be captured and displayed via USB. Suitable for use in hazardous environments, the SDHmini-Ex is certified intrinsically safe to ATEX, IECEx and UL standards,

Reliable, accurate and offering superior senstivity, repeatability and speed of response. The SDT-Ex is suitable for continuous measurement of trace moisture in industrial process gases. This 3 wire, 4-20 mA, loop powered dewpoint transmitter utilises the ultra high capacitance SHAW moisture sensing technology and is certified intrinsically safe to ATEX and IECEx standards. Suitable for use in hazardous areas using a signal isolator and ideal for hydrocarbon, petrochemical and hydrogen applications. The SHAW SDT-Ex incorporates the unique AutoCal function designed by SHAW, allowing users to ensure accuracy between laboratory calibrations. Fully self-contained within a robust housing, the stainless steel construction provides weatherproof protection to IP66 (NEMA 4X). The output is configurable in 5 different units and various dewpoint ranges are available covering an overall range from -100 °C to +20 °C (-148 °F to +68 °F) dewpoint with an accuracy of ±2 °C (±3.6 °F) dewpoint.

Utilising the ultra high capacitance SHAW moisture sensing technology. The AcuDew is suitable for continuous measurement of trace moisture in process gases and dry compressed air, offering superior sensitivity, repeatability and speed of response. Various dewpoint ranges are available covering an overall range of -120 °C to +20 °C (-184 °F to +68 °F) dewpoint with an overall system accuracy of ± 2 °C (± 3.4 °F). The output is configurable to display in °C dewpoint, °F dewpoint, ppm(v), ppb(v), g/m3 and lb/MMSCF. Incorporating the unique AutoCal function designed by Shaw Moisture Meters, allowing the user to ensure accuracy between laboratory calibrations by checking the span of the hygrometer and correcting for any deviation. This high performance dewpoint transmitter can cope with extreme environmental conditions, offering protection to IP66 NEMA 4X. Its rugged construction has been tested to withstand 35,000 kilopascal (350 bar) maximum pressure.

Manufactured in the UK, the SDH-PSS is an effective, self-contained sampling system designed for gas or general compressed air sampling, ensuring sample pressure and flow are suitable for trace moisture measurement. Its compact size means it can be taken as close as possible to the sampling point thereby minimising the volume of the sampling arrangement. Simple to setup and install. Fully configurable with options for a filter unit and pressure regulator on a chassis made from high quality stainless steel with stainless steel fittings and pipework. Designed to condition pressurised gas samples up to a maximum of 200 barg (2,900 PSI), Various configurations are available. The hygrometer docks securely in the sample system, which sits in a rugged, anti-static, foam padded carrying case with rubber feet. With no stored energy components, the SDH-PSS is suitable for use in hazardous areas when paired with the SDHmini-Ex, making this an all in one, dewpoint measurement and sampling system.