LTD Differential Transmitter



  • To measure pressure drops across filters
  • Pumps and compressors, flow measurements of gases and liquids, liquid level measurement of pressurized vessels


  • Designed to measure the differential pressures of liquids and gases between two ports
  • Compact, efficient design available in Low or High psi ranges that facilitates installation in tight spaces
  • Low Range housing is constructed of stainless steel and aluminum
  • High Range housing is made from a 316-grade stainless steel ideally suited for an industrial environment
  • Fast response sensor and signal conditioned electronic circuitry provide quick and accurate readings
  • Unique isolation system responds to pressure changes approximately 20 times faster than conventional transmitters with ranges below 100 psi (Low Range model)
  • CE approval is standard on all models
  • NEMA 4 approval is standard on the Low Range model
  • RoHS compliant
  • 5 year warranty


  Low Range High Range
Electrical Output 4-20 mA, 2 wire 0-5 Vdc or 0-10 Vdc 4-20 mA, 2 wire (other options available)
Electrical Connection Barrier strip terminal block with conduit enclosure and 0.875 dia. conduit opening DIN 43650 with mate
Excitation Voltage 9-30 Vdc 8-38 Vdc
Wetted Parts/Connection 17-4PH SS with FKM O-ring, 1/4”-18 NPTF

316L SS, 1/4” NPTF

300 series SS, 17-4PH SS with FKM O-ring

Housing 304 SS, cast aluminum 316L SS
Proof Pressure Refer to pressure range chart on data sheet Refer to pressure range chart on data sheet (20X full scale optional)
Burst Pressure Refer to pressure range chart on data sheet
Normal Operating Temperature Range 0°F to 175°F (-17°C to 79°C) -40°F to 200°F (-40°C to 93°C)
Compensated Temperature Range 30°F to 150°F (0°C to 65°C) 0°F to 170°F (-18°C to 76°C)
Ambient Temperature Effect on Zero/Span ±2% of full scale/100°F (37.7°C) ≤±1.5% FSO over compensated range
Response Time 30-50 ms <50 ms
Long Term Stability ±0.5% FSO/yr ≤±0.25% FSO/yr
Weight 14.4 oz. (408 g) 13 oz. (368 g)
Accuracy ±0.25% FSO ±0.25% FSO
Enclosure Rating IP65 IP65

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