Key Parameters :
Parameter Category Specification Details
Model Code DR1A-150G-001
Sensor Type Silicon Resonant Sensor
Measuring Range (Span) 0.5 to 150 kPa (Approx. 2.0 to 600 inch H₂O)
Upper Range Limit (URL) 150 kPa
Lower Range Limit (LRL) 0.5 kPa
Turndown Ratio 100:1
Accuracy ±0.055% of URL (For span codes 1-3, where URL=150kPa)
This is the total error band including linearity, hysteresis, and repeatability.
Reference Accuracy ±0.04% of Calibrated Span (Under reference conditions: 25°C ambient, 101.3 kPa atmospheric pressure, 50% relative humidity, and with static line pressure at atmospheric pressure)
Stability ±0.1% of URL per 10 years
Output Signal 4 to 20 mA DC, two-wire system with HART® / BRAIN protocol digital communication overlay.
Power Supply 10.5 to 42 V DC (12 to 30 V DC for HART/BRAIN communication)
Ambient Temperature -40 to 85°C (-40 to 185°F)
LCD Indicator range: -20 to 80°C (-4 to 176°F)
Process Temperature -40 to 120°C (-40 to 248°F)
For a standard filling fluid (Silicone Oil).
Relative Humidity 0 to 100%
Static Pressure Limit 2 MPa (290 psi)
Overpressure Limit 2 MPa (290 psi)
Pressure Influence Zero: ±0.15% of URL per 7 MPa (1000 psi)
Span: ±0.15% of Reading per 7 MPa (1000 psi)
Vibration Influence ±0.1% of URL per 1 g (on frequency 0 to 500 Hz)
Response Time 90 ms (can be adjusted from 0.6 to 64 seconds via software)
Damping Factor 0.10 (Fixed) + Adjustable (0.00 to 64.0 sec)
Electrical Connection 1/2-14 NPT Conduit with terminal compartment
Process Connection 1/4-18 NPT female (Standard)
Material Housing: Aluminum die-cast with epoxy coating (NEMA 4X / IP66)
Flanges & Bolts: 316L SST
O-rings: Viton® (Standard), other options available
Weight Approximately 3.6 kg (7.9 lbs)
Compliance CE, UKCA, SIL 2 (Safety Integrity Level) according to IEC 61508
Communication HART® (Version 5, 6, 7) and BRAIN (Version 1.3) protocols.