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Model 269 Low Differential Pressure Transducer
Brand: Setra Systems, IncSetra’s Model 269 transducer is the highest accuracy solution for monitoring differential pressure in critical environments. Its 0.25% accuracy is calibrated using the “End Point Method” which improves linearity when compared to competitive transducers which use the “Best Fit Straight Line Method”.
The 269’s calibration is tamper proof by utilizing a removable process head that eliminated inadvertent adjustments while allowing in-situ calibrations without removing the process tubing.
Calibrations can be performed automatically when performed with Setra’s MicroCal outfitted with an expert system. The 269 offers multiple mounting configurations, including DIN rail, for quicker and easier installation.
Features- End point 0.25% accuracy - Improved linearity
- Secure calibration key for zero/span adjustments
- 2:1 Turndown ratio available
- Fire retardant case (UL 94 V-0 approved)
- Enhanced thermal performance
Specifications
Brand
Accuracy
- ± 0.25 % of Full Scale
- ± 0.50 % of Full Scale
- ± 1 % of Full Scale
Applications
- Differential Pressure Monitoring
- HVac Systems
- Pharmaceutical
Compensated Temperature
- -6.66° to 60° C (20° to 140° F)
Electrical Connectors
- Detachable Screw Terminal Strip
Hysteresis
- ± 0.05 %
- ± 0.10 %
Maximum System Pressure
- psi: 10 (kPa: 68.9, bar: 0.689)
Media
- Air
- Gas (Non-Conducting)
Mounting
- Base Mounting
- DIN Rail
Non-Linearity
- ± 0.10 % of Full Scale BFSL
- ± 0.15 % of Full Scale (Endpoint)
- ± 0.25 % of Full Scale BFSL
- ± 0.35 % of Full Scale (Endpoint)
- ± 0.55 % of Full Scale BFSL
- ± 0.75 % of Full Scale (Endpoint)
Non-Repeatability
- ± 0.05 % of Full Scale
Operating Temperature
- 28° to 71° C (-20° to 160° F)
Output
- 12 mA Bi-Directional at Zero Pressure
- 4-20 mA
Overpressure & Static Pressure Limits
- psi: 0 to 2 (kPa: 0 to 13.79, bar: 0 to 0.137)
Pressure Range
- bar: 0 to 0.025
- Inches WC: 0 to 10
- kPa: 0 to 2.49
- psi: 0 to 0.36
Pressure Type
- Differential
Ratio
- 2:1 - Turndown
Resistance
- External Load: 0 to 800 ohms
Span & Zero Effect
- ± 0.02 % of Full Scale/°F
- 0.01 % of Full Scale/°F
- 16 ± (0.04-0.12 mA)
Stability
- Long Term: 0.5 % of Full Scale Per Year
Storage Temperature
- -40° to 85° C (-40° to 185° F)
Supply Voltage
- 13.5 Vdc (13.5 + 0.02 x Resistance of Receiver Plus Line) - Min.
- 30 Vdc (30 + 0.004 x Resistance of Receiver Plus Line) - Max.