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166 Low Differential Pressure Transducer

166 Low Differential Pressure Transducer

166 Low Differential Pressure Transducer

Product catalog summary
Overview: The Model 166 Series consists of low range differential pressure transducers and transmitters designed for outdoor environments. They feature a flame retardant plastic enclosure with a metal backing, allowing easy access to zero and sensitivity adjustments.
Specifications: The pressure range for these models spans from 0 to 0.1"WC to 0 to 100"WC, with both unidirectional and bidirectional options. Outputs are available in 0 to 5VDC, 0 to 10VDC, and 4 to 20 mA. The units are temperature compensated with accuracy options of 0.6%, 0.4%, or 0.25% at room temperature.
Design and Materials: The pressure sensor uses a patented variable capacitance design made from stainless steel and glass, ensuring excellent performance, corrosion resistance, and long-term stability.
Performance Data: Accuracy at room temperature ranges from ±0.60%FS to ±0.25%FS. Non-linearity, hysteresis, and non-repeatability are specified, with thermal effects and stability also detailed. The operating temperature range is 0 to 170°F, with a storage range of -65 to 185°F.
Applications: Suitable for HVAC and VAV control, clean room and fume hood control, duct static pressure measurement, draft control, furnace air flow control, and power plant air flow monitoring and control.
Features: The Model 166 Series can withstand up to 15 PSI overpressure on all ranges, offers incorrect wiring protection, and provides true zero output for voltage units. It meets conformance standards and RoHS requirements.
Ordering Information: The document provides detailed ordering codes for various configurations, including pressure range, type, output, accuracy, and pressure fittings.
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Catalog excerpts

166 Low Differential Pressure Transducer-1

alpha" instruments PaUxil No 2Q0S2Q02W46.7 200620004461.6 OttXK Foreign 5 Ponding Pats MODEL 166P1000DA6N A OUTPUT: 4 TO 20mA POWER: Ifi TO 321 RANGE: 0 TO I.OkPa ACCURACY: 0.6% SERIAL NO: 0317003 The Model 166 Series are low range differential pressure transducers and transmitters. It features a flame retardant plastic enclosure with a metal backing. The unique design makes it can be used at outdoor environment and with easy access to zero and sensitivity adjustments. The Model 166 Series are available for full scale pressure range from 0 to 0.1"WC till 0 to 100"WC. Both unidirectional and bidirectional pressure ranges are offered.The output of the Model 166 Pressure Transducer is available in two versions: 0 to 5VDC and 0 to 10VDC, where 0VDC is true zero without offset. The output of Model 166 Pressure Transmitter is 4 to 20 mA. All units are temperature compensated. The accuracy can be 0.6%, 0.4% or 0.25% at room temperature. The patented variable capacitance pressure sensor is constructed by stainless steel and glass, no glue or other organics. That provides excellent performance, corrosion resistance and long-term stability. Additionally, our unique production setup allows us to accommodate special orders for nonstandard pressure ranges (e.g. -0.5"WC to +3.5"WC). Model 166 Specifications Performance Data Accuracy* (at room temp) Non-Linearity (BFSL) Hysteresis Non-Repeatability Thermal Effects: Zero/Span Shift (/°F) Compensated Range Maximum Line Pressure Overpressure Stability Warm-up Shift Position Effect Standard Optional Optional 0 to 170°F (-18 to 77°C) 15PSI(100kPa) 15PSI(100kPa) in Positive or Negative Direction for all Ranges ±0.5% FS/YR ±0.1%FS Applications: ■ HVAC and VAV Control ■ Clean Room and Fume Hood Control ■ Duct Static Pressure Measurement ■ Draft Control ■ Furnace Air Flow Control ■ Power Plant Air Flow Monitor and Control Features • Up to 15 PSI Overpressure on All Ranges • Incorrect Wiring Protection • Unsymmetrical Bidrectional Pressure Ranges • True Zero Output for Voltage Unit • Meets C€ Conformance Standards • Meets RoHS Requirements • Pressure Ranges as Low as 10Pa only! Each unit is calibrated in the vertical position. For best accuracy, adjust zero of the unit if it is mounted in other position. It is not necessary to adjust the sensitivity. * RSS of Non-Linearity, Hysteresis, and Non-Repeatability. Environmental Data and Physical Description Operating Temperature Storage Temperature Electrical Termination Pressure Fittings Output Adjustment Pressure Media Enclosure Weight Installation 0 to 170°F(-18 to 77C) -65 to 185°F(-54 to 85°C) Screw Terminal Block 3/16” O.D. barbed brass for 1/8” I.D. push-on tubing(standard). 8mm O.D. barbed brass(optional). Accessible under the top slip cover. Typically air or similar non-conducting gases ABS, 94V-0 Rated and stainless steel 8.65OZ/245g See Diagram 1 for outline and installation. Visit us Online: www.alphainstruments.com E-mail: [email protected] 978-264

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166 Low Differential Pressure Transducer-2

Electrical Data (Voltage) Circuit 3-Wire (+EXC, -EXC, OUTPUT), Protected against incorrect wiring Output Impedance ^5.0 OHMS * Zero output: factory set at ±25mV(0-5VDC), ±50mV(0-10VDC) Span output: factory set at ±25mV(0-5VDC), ±50mV(0-10VDC) Calibrate with a 50K OHM load. Operable with a load greater than 5K OHM for 0-5VDC output, greater than 10K OHM for 0-10VDC output. Electrical Data (Current) Circuit Output** Bidirectional Output at Zero Excitation External Load 2-Wire(+EXC, -EXC), Protected against incorrect wiring 4-20mA 12mA as standard 16-32VDC(see diagram 2 for maximum loop resistance)...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.