1800 Series Differential Pressure Transmitter

Differential Pressure Transmitter

Models: DMP305X-DST-S

Ranges: -6 kPa to +6 kPa thru -500 kPa to +10 MPa

Certifications: ATEX, IECEx, CSA

Warranty: 2 Years

The 1800 Series Differential Pressure Transmitter model DMP305X-DST-S is well suited for intrinsically safe applications or conventional transmitter installations where a compact footprint is impractical.

All DMP305X-DST-S pressure transmitters include external push buttons for device setup and calibration. If ordered with HART® output they can also be programmed with a HART® communicator.

3 and 5-valve manifolds are also available for 1800 Series differential pressure transmitters.

4-20 mA output
Optional HART® communication protocol
Standard ±0.075% accuracy (URL)
Aluminum explosion proof housing
Optional integral LCD display
EMC (EMI/RFI) protection
ATEX / IECEx certified for intrinsically safe and flameproof applications
CSA certified for explosion proof applications


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815DT Smart Differential Pressure Transmitter

815DT Smart Differential Pressure Transmitter
815DT flow transmitter

Models: 815DT
Ranges: 0-138 in H2O (0-5 psid) to 0-500 psid
Certifications: Unit: ATEX, CRN, Dual Seal (Canada), FM (US and Canada)
Warranty: 3 Years

The 815DT smart differential pressure transmitter is a rugged, compact, light weight, loop powered instrument that is ideally suited for hazardous locations and hostile environments where space is limited. The 815DT offers many industry standard outputs to meet applications where low cost, discrete and continuous monitoring is required or preferred. This versatile instrument may be used to reliably measure differential pressure, level or flow.

The 815DT is easily configured using HART®7 Communication Protocol and Modbus RTU Serial Communications and the zero and span set points can be easily set with a magnet.

  • HART®7 communication protocol with 4-20 mA output
  • 1-5 VDC (low-power) mode of operation output
  • Modbus RTU (RS-485) serial communications
  • Configurable normally-open solid state switch output (SPST)
  • ±0.10% (URL) accuracy (continuous output)
  • Local Indicating Display option available
  • Zero balance & URL: ±0.25% URL (Each)
  • 316 stainless steel, explosion proof housing
  • Compact: 2.2 in./55.9 mm face to face dimension
  • Hermetically sealed leads
  • Pressure ranges: 0-138 in H2O (0-5 psid) to 0-500 psid
  • Turndown: 5 to 1
  • Zero and span magnetic targets located on housing
  • EMC (EMI/RFI) protection
  • NEMA 4X, IP66 housing
  • FM and ATEX in U.S., Canada and Europe
  • 3 year warranty
  • Light weight: 1.8 lbs. (0.8 kg)


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The SOR 815DT transmitter monitors flow by measuring the differential pressure across a primary element. As the velocity of the fluid varies, the pressure difference will vary and The SOR 815DT reports that differential pressure to a flow computer to be interpreted. The 815DT is offered in a rugged 316 stainless steel housing suitable for corrosive environments and hazardous locations. With a lower cost and a larger selection of communication protocols, the 815DT is the perfect substitute to value conscious customers.

A Multitude of outputs

  • Integrated solid state switch
  • Traditional 4-20 mA or low power 1-5 VDC output
  • HART 7 and Modbus RTU communications


  • Low cost
  • All features on one device
  • Many pressure ranges
  • Durable, compact, light weight construction

Cost Effective Solution

  • Low cost of ownership
  • Tested before shipping

Certifying Agencies

ATEX (certified by Baseefa, DEMKO, or KEMA)





IECEx (certified by Baseefa or Standards Australia)


PESO (CCOE – India)



Rostechnadzor (RTN)

SIL, TestSafe (SAA – Australia)



Available Listings

Ordinary Locations and Hazardous Locations
SIL Level Switch Certificate
SIL Pressure Switch Certificate

Available Hazardous Locations Protection Methods

Explosion Proof/Flameproof (d)
Intrinsic Safety (ia)
Encapsulation (m)
Special Protection (s)
Combustible Dust (tD)
Energy Limited (nL)

Division 1, Division 2
Class I, Class II, Class III
Groups A-G

ul certification