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PID - Photo Ionisation Detector

PID - Photo Ionisation Detector
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Figure 1 PID-A Schematic Diagram > Notes:1. Seal between R3.1 and R4.5 (if different to atmosphere) 2. Pin out details: Pin 1: 3.0 - 3.6 V regulated; Pin 2: Signal output; Pin 3: 0 V supply.3. All dimensions > 0.1mm unless otherwise stated. Table 1 PID-A Specification > MINIMUM DETECTION LEVEL (ppb isobutylene) 5100LINEAR RANGE (ppm isobutylene) (1% deviation) 50300OVERRANGE (ppm isobutylene) 1,0006,000SENSITIVITY (linear range) (mV / ppm Isobutylene) > 20> 1WARM-UP TIME MINUTES (A1: to 100ppb, AH: to 20ppb) 155OFFSET VOLTAGE (mV) 60 - 7050 - 51TARGET GASES VOCђs with ionisation potentials < 10.6eV POWER CONSUMPTION 110mW typical (at 3.3V) POWER VOLTAGE 3.0 to 3.6VDC (ideally regulated 0.01V) OUTPUT SIGNAL Offset Voltage to V ONBOARD FILTER To remove liquids and particulates. > max (V > max = V > supply -0.1V) TEMPERATURE RANGE -40ѺC to +40C (Intrinsically safe), -40ںC to +60C (Non IS) TEMPERATURE DEPENDENCE 0ڰC to 40C: 99% of signal at 25аC-20C: 97% of signal at 25аC RESPONSE TIME (t ERROR STATE SIGNAL > 90 ) < 3 seconds, diffusion mode Output less than 35mV RELATIVE HUMIDITY RANGE 0 to 95%rh, non-condensing HUMIDITY RESPONSE Near zero EXPECTED OPERATING LIFE >18 months IS APPROVAL IECEx Ex ia IIC T4; ATEX EEx ia II 1G -40 C < T LAMP REPLACEMENT User replaceable (10.6 eV) > a < +40 ںC ELECTRODE STACK User replaceable PACKAGE TYPE Alphasense CH-A3 or City Technologyٙ 4P WEIGHT < 9g POSITION SENSITIVITY None WARRANTY PERIOD 24 months from date of shipment or 18 months from date ofinstallation, whichever comes first. > TTTTTececececechnical Specifhnical Specifhnical Specifhnical Specifhnical Specificaicaicaicaicationtiontiontiontion NOTE: all sensors are tested at ambient environmental conditions, unless otherwise stated. As applications of use are outside our control, the information provided is givenwithout legal responsibility. Customers should test under their own conditions, to ensure that the sensors are suitable for their own requirements. Alphasense Ltd, Sensor Technology House, 300 Avenue West, Skyline 120, Great Notley. CM77 7AA. UKTelephone: +44 (0) 1376 556 700 Fax: +44 (0) 1376 335 899 E-mail: sensors@alphasense.com Website: www.alphasense.com ( ALPHASENSE LTD ) Doc. Ref. TDS/PIDA/Issue 001 size="-4">

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