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P290 Pneumatic-to-Current P/I Transducers

P290 Pneumatic-to-Current P/I Transducers

P290 Pneumatic-to-Current P/I Transducers

Product catalog summary
Overview
The document provides detailed information about ControlAir's Dahl P200 and P290 pneumatic-to-current (P/I) transducers. These devices convert pneumatic signals into electrical current outputs with high accuracy and reliability. The P200 is designed for explosion-proof applications, while the P290 is suitable for high-density and panel-mounted applications.

Specifications
  • Inputs: Accepts instrument air at 3-15, 3-27, or 6-30 psig.
  • Outputs: P200 offers 4-20 mA and 10-50 mA outputs; P290M provides 4-20 mA output.
  • Accuracy: ±0.15% of span guaranteed; typical accuracy is ±0.10%.
  • Protection: Includes reverse polarity, transient, and over-current protection.
  • Temperature Range: Operating range from -40°F to 161°F for P200 and -40°F to 167°F for P290.

Features
  • Non-interactive calibration and RFI immunity.
  • High-density DIN rail adapters for P290, allowing easy installation.
  • Explosion-proof and dust ignition-proof certifications for P200.

Principles of Operation
The transducers use a solid-state, piezo-resistive transducer configured as a Wheatstone Bridge. Pressure applied to the transducer causes an imbalance, which is converted into a current output signal.

Approvals and Certifications
The P200 is approved by Factory Mutual and the Canadian Standards Association for various hazardous locations, including explosion-proof and dust ignition-proof environments.

Warranty
ControlAir products are warranted for eighteen months against defects in materials and workmanship, provided they are used according to recommended guidelines.

Ordering Information
Part numbers are composed of the model, input range, and options. Various options are available, including surge protectors and different mounting hardware.
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Catalog excerpts

P290 Pneumatic-to-Current P/I Transducers-1

Pneumatic-to-Current P/I Transducers Reliable, user-oriented performance ControlAir’s Dahl P200 and P290 P/I transducers represent outstanding value in pneumatic to current technology. All solid state circuitry converts standard 3-15, 3-27 or 6-30 psig instrument air into 4-20 or 10-50 mA outputs (4-20 mA only for FM and CSA approval) with uncompromising accuracy and durability. Custom pressure ranges are also available. The P200’s explosion-proof housing allows it to stand up to the most hazardous and demanding applications. The P290 serves the same function except in high-density and panelmounted applications. The P200 is FM approved and CSA certified as NEMA 4 (Enc. 4) for all locations and explosion-proof for Class I, Div. 1, Groups A, B, C, D; dust ignition-proof for Class II, Div. 1, Groups E, F, G; and suitable for Class III, Div. 1 locations. The P290 is available with high density DIN rail adapters, offering space saving flexibility with easy plug-in installation. Features • ±0.10% Accuracy • Non-interactive Calibration • Transient, Over-current and Reverse Polarity Protection • RFI Immune P290M shown with optional Din Rail Adapter and Din Rail

 Open the catalog to page 1
P290 Pneumatic-to-Current P/I Transducers-2

User-friendly, compact and versatile pneumatic-to-electric transducers 3-15 psig (0.2-1.0 bar) 3-27 psig (0.2-1.8 bar) 6-30 psig (0.4-2.0 bar) Maximum Input 3 times full scale without recalibration 4 times full scale without failure P200, 2 wire: 4-20 mA and 10-50 mA with over-current limit P290M, 2 wire: 4-20 mA, with over-current limit. Allowable Loads (24 VDC Power) ± 0.15% of span guaranteed; ±0.10% of span typical. Includes combined effects of linearity, hysteresis and repeatability errors ±0.10% of span max; ±0.03% of span typical Output Ripple Response Time Temperature Stability Span and...

 Open the catalog to page 2
P290 Pneumatic-to-Current P/I Transducers-3

P290 with optional C or G Din Rail Adapter 3.5 (88.90) P290 with optional C type Din Rail .70 Adapter (17.78) P290 with optional G type Din Rail Adapter *Allow 1" (25.40) each end for removal of covers P200 2" Pipe, “U” Bolt Mounting-Option P22 Pneumatic Input + Reference and Zero Bias Supply 2.9375 (74.61) Transducer Excitation Circuit Pneumatic Input Solid State Transducer Precision Amplifier Output Current Source + In-process Current Monitoring Terminals - A precision voltage reference circuit supplies a stable and highly regulated voltage to all other portions of the circuit. An excitation...

 Open the catalog to page 3
P290 Pneumatic-to-Current P/I Transducers-4

Ordering Information Part Number P/I Device, 2-wire, FM explosion-proof, 4-20 mA standard, 10-50 mA optional Adapter for C type rail -optional Adapter for G type rail -optional *10-50 mA not available with P28 or P30 options *For stand alone operation, P290M requires either C or G Din Rail Adapter Standard Ranges Custom Ranges (psig) Specify range Approvals The Dahl P200 has been approved by Factory Mutual and the Canadian Standards Association as NEMA 4 (Enc. 4) for all locations and explosion-proof for Class I, Div. 1, Groups A, B, C, D; dust ignition-proof for Class II, Div. 1, Groups E, F,...

 Open the catalog to page 4

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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.