DC2

DC2

DC2

Product catalog summary
Overview: The DC2 Series potentiometers are designed for use as command signals for Proportion-Air control valves. They utilize a 10-volt reference for excitation and include an op-amp for output buffering, ensuring linearity without external interference. A three-wire cord facilitates power, signal, and common connections.
Key Features:
  • Conditioned for Proportion-Air products.
  • Available in single or 10-turn designs.
  • Optional numeric indicator available.
Functional Description: The series includes various models such as DC2, DC2C, DC2-10T, DC2-10TC, DC2-10TI, and DC2-10TIC, each with specific electrical and mechanical characteristics.
Electrical Specifications:
  • Input Voltage: 15-24 VDC
  • Output Voltage: 0-10VDC (for certain models)
  • Output Current: 10mA Max or 4-20mA sourcing
  • Linearity: ±0.25% or ±1%
  • Power Consumption: 20-30 mA
  • Temperature Range: 32-158 °F (0-70 °C)
  • Cord Length: 10 Feet
Mechanical Specifications:
  • Rotation: 270 degrees ±3 degrees or 3600 degrees +10s -0 degrees
  • Rotation Life: 25,000 or 50,000 cycles
  • Bushing Length: 3/8 (9.52 mm) x 3/8-32 UNEF-2A
  • Weight: Varies by model (e.g., DC2 0.34 lb, DC2-10T 0.32 lb)
Ordering Information: Potentiometers come standard with a 10 ft cord. Contact Proportion-Air, Inc. for orders and inquiries.
Dimensions: Detailed dimensions are provided for different models, with measurements in both inches and millimeters.
Connection and Wiring: The DC Series wiring includes black for power (15-24 VDC), white for signal out, and green for DC common. Specific instructions are provided for wiring 4-20mA output potentiometers to Proportion-Air control valves.
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Catalog excerpts

DC2-1

Conditioned for use with Proportion-Air products Available in single or 10 turn design Available with numeric indicator FUNCTIONAL DESCRIPTION The DC2 Series line of potentiometers are designed for use as a command signal for Proportion-Air control valves. A 10 volt reference is used to provide excitation to the potentiometer. An op-amp measures the output on the wiper of the potentiometer and provides buffering to eliminate external components from affecting the linearity of the potentiometer. A three wire cord is provided and is attached to the pc board to make necessary power signal and common connections. ELECTRICAL Input voltage Output voltage Output current Linearity Power consumption Temperature range Cord length MECHANICAL DC2 & DC2C Rotation Rotation life Bushing length Overall Weight

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DC2-2

* DC2C & DC2-10TC uses the same box but without the indicator DC SERIES WIRING BLACK 10 Turn Pot., Mechanical Thumb Wheel Indicator (0-10Vdc output) ** When wiring a 4-20mA output potentiometer (DC2C, DC2-10TC & DC2-10TIC) to a Proportion-Air control valve, the SIGNAL OUT (WHITE) should be connected to the control valve’s (+) command. The control valve’s (-) command (if present) should be tied to a DC common (ground) 10 Turn Pot., Mechanical Thumb Wheel Indicator (4-20mA output) All potentiometers come standard with 10 ft cord PROPORTION-AIR, INC. BOX 218 MCCORDSVILLE, IN USA 46055 PHONE: (317)335-2602...

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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.