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The DPT Series is based on a piezoresistive, silicon sensing element which senses Differential Pressure and provides an analog output. The hinged cover on the DPT can be easily opened using the integrated locking tab on the side of the enclosure. This allows for easy access to the zero function and field selectable ranges and outputs. The DPT Series also includes an optional, five digit LCD for installation and monitoring support. Field selectable analog outputs include 0-5 and 0-10 VDC, or 4-20 mA which correlate to a specific uni or bi-directional pressure range from 0-0.1 up to 0-40 of water column, depending on your model selection. Each unit must be ordered with the specific pressure range needed to meet desired application requirements. Options include a Pitot Tube or Din Rail Clip.

Applications:

• Building and Duct Static Pressure,
• Flter Monitoring,
• Air Fow Measurement,
• Process Control

Available Model Numbers:

Part Number Input Range Options Description DPTS1 00.1″, 0.2″, 0.5″, 1″, Without Display DPTS2 01″, 2″, 5″, 10″, Without Display DPTS3 010″, 20″, 30″, 40″, Without Display DPTS1A 00.1″, 0.2″, 0.5″, 1″, Without Display, With Pitot Tube and DIN Rail Clip DPTS2A 01″, 2″, 5″, 10″, Without Display, With Pitot Tube and DIN Rail Clip DPTS3A 010″, 20″, 30″, 40″, Without Display, With Pitot Tube and DIN Rail Clip DPTS1D 00.1″, 0.2″, 0.5″, 1″, With Display DPTS2D 01″, 2″, 5″, 10″, With Display DPTS3D 010″, 20″, 30″, 40″, With Display DPTS1DA 00.1″, 0.2″, 0.5″, 1″, With Display, Pitot Tube, and DIN Rail Clip DPTS2DA 01″, 2″, 5″, 10″, With Display, Pitot Tube, and DIN Rail Clip DPTS3DA 010″, 20″, 30″, 40″, With Display, Pitot Tube, and DIN Rail Clip

Specifications:

• Supply Voltage:
• 420 mA Output: 1636 VDC (250 Load max.) / 2236 VDC (500 Load max.)
• 05 VDC / 010 VDC Output: 1636 VDC / 24 VAC (+/ 10%)
• Supply Current:
• 420 mA Output: 24 mA minimum | 05 VDC / 010 VDC Output: 6 mA maximum
• Output Signals:
• Current Output: 420 mA, 2Wire (Standard); (Current limited to 21.4 mA max)
• Voltage Signals: 05 VDC / 010 VDC, 3Wire; Output limited @ 5.25 & 10.5 VDC)
• Response Time (0100% FSO): 8 seconds
• Output Update Rate: 1 second
• Accuracy: +/ 0.5% FSO; +/ 0.25% (Only for Specified Range)
• Zero Function: Pushbutton Zero Function
• Thermal Effects: +/ 0.067% FSO / F (0.12% FSO / C)
• Proof Pressure / Burst Pressure:
• DPTS1: Proof: 270 inWC (67.2 kPa) | Burst: 415 inWC (103.3 kPa) for 1 inWC (249.8 Pa)
• DPTS2: Proof: 350 inWC (87.12 kPa) | Burst: 550 inWC (136.9 kPa) for 10 inWC (2490.8 Pa)
• DPTS3: Proof: 562 inWC (140 kPa) | Burst: 1004.7 inWC (250 kPa) for 40 inWC (9963.6 Pa)
• Operating Temperature Range: 4 to 185 F (20 to 85 C)
• Compensated Temperature Range: 32 to 122 F (0 to 50 C)
• Storage Temperature Range: 22 to 185 F (30 to 85 C)
• Operating Humidity Range: 10 to 95% RH, noncondensing
• Media Types: Dry air or inert nonconductive gases
• Enclosure Material / Flammability Rating: Flame Retardant Polycarbonate; UL945VA
• Wiring Connections: Finger Pushbutton (Spring) Terminal Blocks; accepts 1624 AWG wires
• Conduit Knockouts: Watertight Cordgrip Installed (1/2″ NPT Conduit fittings accepted when Cordgrip removed)
• Pressure Fitting Material: Nickel Plated Brass or Stainless Steel
• Tubing Size Accepted: 1/4″ O.D. x 0.170″ I.D. Poly Tubing

Note: Accuracy includes linearity, hysteresis & repeatability @ 71F (21.5C)
Note: Shift is relative to 71F (21.5

Resources:

• DPT Differential Low Pressure Transmitter Installation Instructions