HDP Series Differential Pressure Transmitter

Differential Pressure Transmitter

Designed for many markets/applications

Dylix’s DP Series differential pressure transmitter is designed for End Users and OEMs where ruggedness, high performance and reliability are required at a competitive price. This product is modular and is configurable to meet our customer’s exact needs.

Manufactured for extended life cycle

Every DP Series is built using advanced manufacturing techniques to ensure symmetry between the HI and LO ports. Symmetry, along with automated welding procedures and extreme environmental burn-in, give Dylix’s differential pressure products excellent performance and reliability over time and at high elevated line pressure.

Entirely welded stainless steel pressure cavities

The DP Series pressure port’s all welded stainless steel O-Ring free design make it ideal for high cyclical applications, capillary filled systems or applications where a guaranteed leak free system is needed.

Dylix’s Customer Service

Includes a NIST traceable calibration certificate.

Standard Features:

  • ±≤ 0.25% FSO Static Accuracy
  • NEMA 4X Packaging

Available Options:

  • 5x proof/max pressure
  • Zero & Span Controls
  • Inconel 718 Wetted Parts

Product Specifications


DP1 2-15 Vdc
DP2 & DP3 8-38 Vdc*
DP1 1-2 mV/V*
DP2 0-5 Vdc*
DP3 4-20 mAdc
Zero Balance ≤+1% FSO
FSO Setting ≤+1% FSO
Resolution Infinite (≤±0.001% FSO usable)
Response Time
DP1 < 30 mS
DP2 & DP3 < 50 mS
Insulation Resistance 1,000 M Ω @ 50 Vdc
Reverse Polarity Protected
Warm-up < 20 mS
Power Supply Effect ≤± .002% FSO per V input
(DP2, DP3)
EMY/RFI Internal Filtering (DP2, DP3)

* Options Available


Pressure Ranges 0-100 through 0-20,000 psid
(Customer may specify any range/eng. unit)
Proof Pressure 3X range (5X optional)
Burst Pressure 5X range (higher optional)
Wetted Parts 316L and 17-4 SS*
Non-wetted Parts 316 SST plus electrical connector
Pressure Port 1/4"-NPT (Female)*
Electrical Connector NEMA 4X cable exit (24” cable)*
Dimensions Per outline below
Weight 13 oz.


Compensated Temp Range -30 to 170º F
Operating Temp Range -40 to 185º F
Storage Temp Range -40 to 250º F


Static Accuracy ≤± 0.25% FSO BSL*
Repeatability ≤± 0.1% FSO
Temperature Effects ≤± 1.5% FSO/100º F over comp range*
(Combined effects of Zero & FSO with reference at 70º F)
Long Term Stability ≤± 0.25% FSO per year

Standard Wiring

Model Output + Power - Power + Signal - Signal
DP1 mV/V dc 4 wire Red/Pin 1/Pin A Black/Pin 2/Pin B Green/Pin 3/Pin C White/Pin 4/Pin D
DP2 0-5 (10) Vdc 3 wire Red/Pin 1/Pin A Black/Pin 2/Pin B Green/Pin 3/Pin C
DP3 4-20 mAdc 2 wire Red/Pin 1/Pin A Black/Pin 2/Pin B

**Dylix Corporation reserves the right to change specifications without prior notification. Please contact the factory for the latest revision.