Sensocon USA Differential Pressure Transmitter Series DPT30-R8 - Range 0 - 254 mmWC
APPLICATIONS
DPT-R8 series devices are commonly used in HVAC/R systems for: Fan, blower and filter monitoring Pressure and flow monitoring Valve and damper control Pressure monitoring in clean rooms
WARNING
READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING TO INSTALL, OPERATE OR SERVICE THIS DEVICE.
Failure to observe safety information and comply with instructions could result in PERSONAL INJURY, DEATH AND/ OR PROPERTY DAMAGE.
To avoid electrical shock or damage to equipment, disconnect power before installing or servicing and use only wiring with insulation rated for full device operating voltage.
To avoid potential fire and/or explosion do not use in potentially flammable or explosive atmospheres.
Retain these instructions for future reference.
This product, when installed, will be part of an engineered system whose specifications and performance characteristics are not designed or controlled by Sensocon. Review applications and national and local codes to assure that the installation will be functional and safe. Use only experienced, knowledgeable, technicians to install this device.
SPECIFICATIONS
Performance Accuracy (at applied pressure) Ranges < 0.5 inWC = 0.01 inWC Ranges 0.5 inWC = 1.5% inWC Accuracy specifications include: general accuracy, temperature drift, linearity, hysteresis, long term stability, and repetition error
Thermal Effects Temperature compensated across the full spectrum of capability
Overpressure Proof Pressure: 100 inWC Burst Pressure: 120 inWC
Zero Point Calibration Automatic with function or Manual push-button Auto-Zero
Response Time 4.0 0.8 sec, Selectable via Jumper
Technical Specifications Media Compatibility Dry air or non-aggressive gases
Measuring Units (select via Jumper) Pa, kPa, mbar, inWC, mmWC Measuring Element Piezoresistive
Environment: Operating Temperature: 14 122F (-10 50C) Storage Temperature: -4 158F (-20 70C) Humidity: 0 to 95 % rH, non condensing
Physical Case Dimensions: 3.54 x 3.74 x 1.4 (90.0 x 95.0 x 36.0 mm) Weight: 5.3 oz (150 g) Mounting: 2 each 0.1875 (4.3 mm) screw holes, one slotted Materials: Case: ABS (UL 94 V-0 Approved) Lid: PC (UL 94 V-1 Approved) Protection standard: IP54 / NEMA3
Display (optional) 3 1/2 Digit LCD Backlit Display 2-Line Display (12 character/line) Size: 1.81 W x 0.57 H (46.0 x 14.5 mm)
Electrical connections: 4 screw terminal block Wire: 12-24AWG (0.2 1.5 mm2
Cable Entry Strain Relief: M16 Knockout : 0.625 (16mm)
Pressure Fittings 3/16 (5.2mm) barbed brass + High pressure Low pressure
Electrical Voltage Circuit: 3-wire ([V Out], 24V, GND) Input: 24VAC or VDC, 10% Output: 0-10V or 0-5V, selectable via Jumper Power Consumption: <1.0W Resistance Minimum: 1k
Current Circuit: 3-wire (mA Out, 24V, GND) Input: 24VAC or VDC, 10% Output: 4
Built with a robust ABS plastic housing and Buna-N seals, the DPT30-R8 withstands industrial environments with its IP54 ingress protection. The units powder-coated finish and wall-mount design ensure a long service life and simplified installation, making it suitable for diverse applications.
The DPT30-R8 provides reliable and accurate pressure measurements within a scale range of 0254 mmWC, maintaining an accuracy of 1% full span. Its output signal (4-20 mA) ensures seamless communication with control and monitoring systems for HVAC, cleanroom, or industrial process applications.
Installation is straightforward thanks to the barbed fittings for 6 mm ID tubing, screw terminal electrical connections, and included mounting hardware. Zero and span adjustments are accessible via a convenient front keypad, streamlining calibration and maintenance routines.
FAQs of Sensocon USA Differential Pressure Transmitter Series DPT30-R8 - Range 0 - 254 mmWC:
Q: How is the DPT30-R8 differential pressure transmitter installed?
A: The DPT30-R8 is designed for wall-mounting and comes with mounting screws. Simply use the provided hardware to secure the transmitter in place, connect the barbed fittings to 6 mm ID tubing, and wire power and signal through the screw terminals.
Q: What types of media can the DPT30-R8 measure pressure for?
A: This transmitter is suitable for measuring the differential pressure of air and non-corrosive gases only. It should not be used with corrosive or liquid media, as its sensor and Buna-N seals are designed for gas-phase applications.
Q: When should zero or span adjustments be performed?
A: Zero and span adjustments should be carried out during initial installation, after maintenance, or if you notice drift in the measured output. The adjustments are accessible via the front keypad, simplifying recalibration without tools.
Q: Where can the DPT30-R8 be used?
A: With its IP54 protection rating and robust construction, the DPT30-R8 is suitable for industrial sites, HVAC systems, cleanrooms, or any environment that requires accurate differential air pressure monitoring within -10C to +50C.
Q: What is the benefit of the 4-20 mA output signal?
A: The 4-20 mA current loop output ensures reliable long-distance signal transmission with high noise immunity, making integration into industrial automation and monitoring systems straightforward and effective.
Q: How is electrical connection made to this transmitter?
A: The DPT30-R8 uses screw terminals for electrical connections. Connect the transmitter to a 12-30 VDC power supply and the output signal wiring according to the provided instruction manual to ensure correct operation.