CD23/223 Carrier Demodulator with LED Display
- 3½ or 4½ Digit display
- Dual transducer inputs on CD223
- BCD output option
- Analog DC output
- Operates with variable reluctance or LVDT transducers
The CD23 and CD223 Digital Transducer Indicators are designed for use with variable reluctance and differential transformer transducers. The CD23 accepts input from a single transducer, and the CD223 accepts two switch-selectable inputs, with Zero and Span controls for each input.
The indicators provide 5 Vrms, 5 kHz carrier excitation voltage to the transducer(s) and solid state circuitry to amplify, demodulate and filter the transducer output signals. A 3 1/2 digit front panel display is standard, with a 4 1/2 digit display optionally available.
In addition, a high level dc analog output voltage is provided, based on 1.0 Vdc output per 100 digit display counts, or 10 Vdc full-scale and 1000 counts on the display. To provide maximum flexibility, the standard display is set to read in percent of full-scale (±100.0% for normal full-scale indication), permitting use with transducers of different pressure ranges and units while retaining the resolution of the full 10 Vdc analog output and 1000 digit counts.
A High-low range switch is provided to increase meter sensitivity by 10x over 0 to ±19.99 percent of full-scale range (analog output is unaffected by the Range switch.)
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- Portable, Lightweight Construction
- Internal Battery Operation or Optional AC Converter
- Absolute Gauge and Differential Ranges – 0.08 psi FS to 3200 psi FS
- All Surfaces in Contact with Media are Stainless Steel
- 2 Vdc Analog Output Standard
- Wet-Wet capability
- Full scale range from ±8 psi to ±10,000 psi
- Static line pressures up to 10,000 psi with 3% FS Max. Line Pressure Effect
- Fast dynamic response
- Sensor diaphragms are field replaceable
- High natural frequency
- Economical – Replaceable pressure sensing diaphragm for easy re-rangeability
- Wide Range – Provides pressure measurement from ±2.22” H20 to ±3200 psi in 23 full-scale ranges
- Flexible – Wet – Wet capability accepts liquids and gasses on both sides of the diaphragm
- Fast Response – Small internal pressure cavity volume for fast response to pressure variations
- Rugged – Withstands extreme shock and vibration
- Durable – Heavy-duty stainless construction stands up to abuse
- Lightweight construction, 3/8 DIN enclosure
- Absolute, gage and differential ranges, 0.08 to 3200 psi FS
- All surfaces in contact with pressure media are stainless steel - both ports in differential units
- 5 Vdc analog output standard
- Temperature range 0ºF to 160ºF