TVOC Brochure - ION Science - #2

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Part number TVOCV1.6 This publication is not intended to form the basis of a contract and specifications can change without notice. TVOC is a fixed photoionisation detector (PID) designed for continuous measurement of total volatile organic compounds (VOCs). New ATEX approvals enable a 3 wire TVOC system to be used in Zone 2 hazardous areas, without safety barriers. ATEX and IECEx approvals allow TVOC to be used in Zone 1 hazardous areas, with safety barriers. The 4-20 mA analogue output enables TVOC to be integrated into a DCS control system to give warning or control of high VOC levels in the working environment. TVOC utilises a diffusive sample technique resulting in less contamination issues compared to pumped systems, reducing lamp cleaning and servicing requirements. Simple to install, service and calibrate, TVOC requires no hot work permit and the PID sensor is accessible and changeable in a matter of seconds. TVOC SystemPlus comes complete with a pumped sample system for applications where a sample needs to be drawn to the unit from as far away as 30 meters. SystemPlus incorporates a TVOC unit together with pump, sample preconditioning with flow cut off switch, optional USB data logger and power supply all contained in a waterproof housing. 181mm (7.1”) 125mm (4.9”) 125mm (4.9”) Applications include: • Manufacturing • Processing • Refineries and petrochemical • Offshore • Chemical • Waste water treatment • Pharmaceutical • Indoor air quality • Pulp and paper • Solvent recovery systems • Industrial painting and coating TECHNICAL SPECIFICATION SENSOR (PID) 10.6 eV lamp with Ion Science patented Fence Electrode technology* HAZARDOUS AREA SAFETY APPROVALS ATEX: II 3 G Ex nA IIC T4 (-20°C Ta 50°C) IECEx: II 2 G Ex ia IIC T4 (-20°C Ta 50°C) INGRESS PROTECTION RATING Designed to - IP65 Dependent on cable glands fitted Sensor - IP53 POWER 5-28 VDC Max 65 mA OUTPUT 4-20 mA (requires a 8-35 VDC power supply) For IS requirements 8-30 VDC power supply RANGE 0-10 ppm, 0-100 ppm, 0-1000 ppm User Selectable SAMPLING Diffusion (can be pumped if required using an adaptor) DISPLAY 7 segment, 4 digit LCD, 4 color LEDs RESPONSE Sensor - T90 25% CALIBRATION Magnetically accessed 100 ppm Isobutylene via calibration kit accessory TEMPERATURE Operating: -20 to 50 oC (-4 - 122 oF) Humidity: 0-95% RH (non- condensing) WEIGHT & DIMENSIONS Instrument: 1.4 kg (3.1 lb) Packed: 1.6 kg (3.5 lb) Dimensions: 181 x 125 x 76 mm (7.1 x 4.9 x 3”) 4-20 mA ALARM LEVELS Selectable 2 mA & 3.5 mA options NB: All specifications are against an isobutylene calibration at 20 °C, 90% RH and up to 100 ppm. * The Fence Electrode technology referred to in this document is produced by Ion Science Ltd, and protected by patents. U.S. Patent No. 7,046,012. EP 1474681, other patents pending. ** TVOC has a variable duty cycle set to 1 minute as standard. The user can adjust this to between 5 seconds and 5 minutes. Accessories TVOC is available with an exclusive range of accessories. Contact Ion Science for more information. Dimensions ION SCIENCE is ISO9001:2008 certified For further information and ordering please call: Tel: +44 (0) 1763 208 503 Email: info@ionscience.com www.ionscience.com ION SCIENCE LIMITED The Way, Fowlmere, Cambs. SG8 7UJ, UK