DTC3 – Absolute and Gauge Pressure Transmitter

The DTC3® is the latest analog pressure transmitter designed for non-safety nuclear applications and manufactured by Ultra Energy.  The Ultra Model DTC3® Analog Gauge and Absolute Pressure Transmitters provide precision pressure measurements in non-safety nuclear applications requiring reliable performance and functional safety. The DTC3® transmitter contains only analog electronics utilizing a diaphragm isolated direct-coupled strain gauge pressure sensor capsule. The DTC3® transmitter has been designed to replace the Rosemount™ 1151 Analog Pressure which was discontinued in 2011.

  • Features
  • Specifications
  • Documents
  • Accessories
  • True analog design – no microprocessor or firmware/software
  • True gauge GP transmitter
  • Accuracy: ±0.2% Span (includes combined effects of linearity, hysteresis, deadband, settability, and repeatability)
  • Drift: ±0.25% of Upper Range Limit (URL) for 6 months
  • Advanced thin film metal strain gauge sensor technology
  • Low-copper aluminum housing with polyurethane paint
  • Loop powered, 2 wire, 4-20 mA, 10-50mA
  • ¼ inch NPT process connections with optional: welded fittings or process adapters
  • Dustproof & waterproof construction; no humidity effect
  • Can be mounted using the Rosemount™ 1151 Analog Pressure Transmitter mounting bracket
  • ½" conduit entry with screw terminal electrical connections, standard
  • Quick Disconnect Connector (QDC), optional
  • Local test points for field adjustability
  • No special tools are required for installation
Name Description
Reference Accuracy ±0.2% Span (includes combined effects of linearity, hysteresis, deadband, settability, and repeatability)
Drift ±0.25% of URL for 6 months
Temperature Effects ± 0.5% URL + 0.5% of Span Temperature Effect per 100°F (56°C)
Overpressure Effects ±0.25% URL; Over Pressure Limit is 2X
Electromagnetic Compatibility European EMC Directive 2014/30/EU by conforming to applicable EN and IEC Standards: Compliance testing to the EN 61000 Series standards, CE Marking, declaration of conformity.
Product Approvals Complies with UL 61010-1 CSA C22.2 No. 610610-1
Load Effect Within limits set by the line voltage, the output current is independent of load resistance
Power Supply Effects 0.005% of Calibration Span/Volt
Power Supply and Load Limits Operating Region: 4-20 mA: 12-45 VDC 10-50 mA: 30-85 VDC (See Documents Section: "RRNP-DTC3 Power Supply Load Limits")
Span & Zero Continuously adjustable external to the electronics, no interaction.
Zero Elevation, Zero Suppression Elevated zero and zero suppression must be factory set in order to achieve the specified temperature performance.
Direct or Reverse Acting Factory Set
Range-down 6 to 1 (Min. span is 16.7% URL)
Output (4-20 mA Standard): Low Saturation <3.8 mA, High Saturation 21 mA;
Output (10-50 mA Option): Low Saturation <8 mA, High Saturation 52.5 mA
Temperature Limits 0°F to 185°F (-17.8 to 85°C). Storage Limits: -40°F to 212 °F (-40°C to 100°C)
Volumetric Displacement Less than 0.01 cubic inches (0.16 cubic centimeters)
Enclosure Rating NEMA 4X (IP 66)
Response Time 0.2 second sensor response time to 50% with a 100% of span step change
Humidity Limits 0 to 100% relative humidity (NEMA 4X)
Turn-On Time 5 seconds to 99%; 1 minute for rated accuracy
Over Pressure Limit 2 x URL
Diaphragm Sensor 15.5 SST
Drain Vent Valve 316 SST
Process Flange 316 SST
Process Seal EPDM
Electronics Housing O-ring BUNA-N
Fill Fluid Silicone Oil: DC550 Standard, DC200 Optional; No fill fluid on the AP capsule
Sensor Module Housing 316 SST
Flange Bolt Medium Carbon Alloy Steel, SAE J429, Grade 8, Zinc Yellow-Chromate Plated Finish Per ASTM B633
Electronics Housing Low-copper aluminum with polyurethane paint
Mounting Bracket 304 SST
Mounting Bolts 300 Series Stainless Steel, ASTM F593
Process Connections ¼-18 NPT standard; Optional: welded fittings or process adapters; IEC 61518 Compliant
Electrical Connections ½” NPT conduit with screw terminals, standard
Weight (transmitter only) 14.7 lbs (6.7 kg)
Name View / Download
Power Supply and Load Limits
AP/GP Ranges and Limits
Model Matrix
DTC3 Pressure Transmitter Dimensional Outline Drawing
Cable Quick Disconnect Connector Mating Cable