Model 440 Pressure Transducer/Transmitter

Absolute pressure
Gauge pressure
High resolution
4-20mA output
High accuracy
Stainless steel

This type of sensor measures the pressure of a compatible fluid or gas. This unit has both gauge pressure and absolute pressure versions.

A gauge pressure transducer measures with respect to atmospheric pressure. An absolute pressure transducer measures with respect to a vacuum.

How it Works - Strain Gauge Pressure Transducer


Gauge pressure

Absolute pressure

D = 38mm
Type * = shorter lead-time Range L
SPT440G00005* 5psi (345mBar) 66mm
SPT440G00015* 15psi (1bar) 66mm
SPT440G00025 25psi (2bar) 66mm
SPT440G00050* 50psi (3bar) 66mm
SPT440G00075 75psi (5bar) 66mm
SPT440G00100* 100psi (7bar) 66mm
SPT440G00150 150psi (10bar) 66mm
SPT440G00200* 200psi (14bar) 66mm
SPT440G00300 300psi (21bar) 66mm
SPT440G00500* 500psi (34bar) 84mm
SPT440G00750 750psi (52bar) 84mm
SPT440G01000* 1000psi (69bar) 84mm
SPT440G01500 1500psi (103bar) 84mm
SPT440G02000 2000psi (138bar) 84mm
SPT440G02500 2500psi (172bar) 76mm
SPT440G03000* 3000psi (207bar) 76mm
SPT440G05000* 5000psi (345bar) 76mm
SPT440G07500 7500psi (517bar) 76mm
SPT440G10000* 10000psi (689bar) 76mm
Type Range L
SPT440A00005 5psi (345mBar) 66mm
SPT440A00015 15psi (1bar) 66mm
SPT440A00025 25psi (2bar) 66mm
SPT440A00050 50psi (3bar) 66mm
SPT440A00075 75psi (5bar) 66mm
SPT440A00100 100psi (7bar) 66mm
SPT440A00150 150psi (10bar) 66mm
SPT440A00200 200psi (14bar) 66mm
SPT440A00300 300psi (21bar) 66mm
SPT440A00500 500psi (34bar) 84mm
SPT440A00750 750psi (52bar) 84mm
SPT440A01000 1000psi (69bar) 84mm
SPT440A01500 1500psi (103bar) 84mm
SPT440A02000 2000psi (138bar) 84mm
SPT440A02500 2500psi (172bar) 76mm
SPT440A03000 3000psi (207bar) 76mm
SPT440A05000 5000psi (345bar) 76mm
SPT440A07500 7500psi (517bar) 76mm
SPT440A10000 10000psi (689bar) 76mm


Excitation/supply (acceptable)9 to 32Vdc Compensated temperature range (minimum) -1C
Output4 to 20mA Compensated temperature range (maximum) 54C
Output load500 Ohms Over-range capacity 50% F.S.
Accuracy±0.25% F.S. Major construction material stainless steel
ResolutionInfinite Port material stainless steel
Temperature coefficient (zero)±0.018% F.S. /C Pressure port thread 1/4-18 NPT female
Temperature coefficient (span)±0.02% rdg /C Electrical termination Connector, mating part = PG9 (or equivalent) (SAD-AA156)
Operating temperature range (minimum)-29C Total weight 368g
Operating temperature range (maximum)85C    

All dimensions and specifications are nominal. 20170119
Due to our policy of on-going development, specifications may change without notice. Any modification may affect some or all of the specifications for our equipment.
UK Head Office
RDP Electronics Ltd
Grove Street, Heath Town
Wolverhampton, West Midlands, WV10 0PY
United Kingdom
Tel: +44 1902 457512
Fax: +44 1902 452000
Registered in England No. 1688591