C vent-captor l Self-contained air flow meter l Simple to install l Sensor for all measurement and control applications l No moving parts l Linear current output 4-20 mA l Four measurement ranges up to 5 m/s, 10 m/s, 20 m/s and 30 m/s (16 ft./s, 32 ft./s, 64 ft./s and 98 ft./s) continually adjustable vent-captor Type 3202.30 & 3205.30 The vent-captor type 3202.30 is an air flow meter for industrial applications. The small, self-contained vent-captor is completely epoxy resin encapsulated and operates with high accuracy and repeatability even in harsh industrial environments.The vent-captor can be integrated into measurement and control systems without additional component parts. The newly developed operating principle for the measurement of air flow, based on the calorimetric principle, provides a wide measurement range from 1 to 30 m/s. To achieve the best signal resolution 4 different units are available. The maintenance-free air flow meter is simple to install with the supplied mounting flange. For applications under pressure conditions vent-captor type 3205.30 with stainless steel casing and integral union nut is available. Sensing Data Medium gaseous Measuring range continually adjustable up to 5 m/s, 20m/s, 30 m/s (16 ft./sec., 32 ft./sec., 64 ft./sec. and 98 ft./sec.) (see graph)* Adjustment characteristic logarithmic to flow speed Accuracy < 3 % Repeatability < 1 % Parameter = Potentiometer-setting a) Type 3202.30/5 b) Type'3202.30/10 Temperature drift < 0,3 % / K Output current related to flow speed c) Type 3202.30/20 at various range potentiometer settings d) Type 3202.30/30 * All data related to air C vent-captor Type 3202.30, 3205.30 Electrical Data Compact Air flow meter Voltage supply 24 V DC ± 30% Power consumption approx. 800 mW - 1.3 W (max. flow speed) Application examples: Output current 4 to 20 mA Resistive Load 0 - 500 Ohm Measurement range adjustment: The measurement range of the air flow meter is adjustable with a small screwdriver turning a potentiometer. A green LED indicates operation within the adjusted measurement range. If flow exceeds the measurement range LED turns off. Connection Diagram: 4-20 mA current output Meter display Mechanical Data Material Sensor probe Housing Ceramic with overglaze Ultradur (PBTP) Medium Temperature -20 °C to +70 °C (-4 °F to +160 °F) Ambient temperature -20 °C to +70 °C (-4 °F to +160 °F) Electrical connection 2 m moulded oilflex cable / 3 x 0,5 mm Protection standard IP 64 (Equivalent to NEMA 4) Weight 130 g Pipe Adaptor for Flange for mounting mounting in pipes in ducts (supplied) Dimensions in mm Digital display (optional) on PC-captor Type 3202.30 with two additional relay outputs, applicable as 2-point controller on request standard Type 3205.30 (stainless steel casing) Technical Data as 3202.30 except: Max. pressure 10 bar (143 PSI) Installation with union nut G1A SW 37 mm, DIN 259, ISO 228 Weight approx. 200 g without nut 2230 Towne Lake Pkwy., Bldg. 900, Suite 200 • Woodstock, GA 30189 I Member of the captor Group Phone: +1(770)592-6630 • Fax: -6640 • E-mail: info@captor.com • www.captor.com Technical data is subject to change 11/2002 - 3202.30-US © Copyright 2002 by captor Management Inc.