Control Air P290 Pneumatic-to-Current P/I Transducers
ControlAir’s Dahl P290 P/I transducer represents outstanding value in pneumatic to current technology. All solid state circuitry converts standard 3-15, 3-27 or 6-30 psig instrument air into 4-20 or 10-50 mA outputs (4-20 mA only for FM and CSA approval) with uncompromising accuracy and durability. Custom pressure ranges are also available. P290 serves in high-density and panel-mounted applications and is available with high density DIN rail adapters, offering space saving flexibility with easy plug-in installation.
ControlAir’s Dahl P290 P/I transducer represents outstanding value in pneumatic to current technology. All solid state circuitry converts standard 3-15, 3-27 or 6-30 psig instrument air into 4-20 or 10-50 mA outputs (4-20 mA only for FM and CSA approval) with uncompromising accuracy and durability. Custom pressure ranges are also available. P290 serves in high-density and panel-mounted applications and is available with high density DIN rail adapters, offering space saving flexibility with easy plug-in installation.
SPECIFICATIONS
| Input |
3-15 psig (0.2-1 bar), 3-27 psig (0.2-1.8 bar), 6-30 psig (0.4-2 bar) |
|---|---|
| Outputs (2 wire) |
10-50 mA, 4-20 mA |
| Input, Maximum |
3 times full scale without calibration 4 times full scale without failure |
| Repeatability |
±0.10% of span max; ±0.03% of span typical |
| Connections - Signal Air |
1/8" NPT female;Electrical Wiring: Miniature terminal block accepts solid or stranded wire up to 14 AWG |
| In-process Output Monitoring |
Current: For accurate reading, ampmeter must have less than 20 Ω input resistance on 4-20 mA output (0.40 VDC drop) |
| Mounting Position Effect |
None |
| Calibration Adjustments |
Multiturn span and zero potentiometers with approximately ±20% of span adjustment range |
| Temperature Range (Storage) |
-60° to 161°F (-51° to 72°C) |
| Ambient Temperature Limits |
-40° to 161°F (-40° to 72°C) |
| RFI/EMI Effect |
Meets or exceeds SAMA PMC 33.1, 1978, 2-abc: 0.1% of span at 10 volts/meter |
| Power Supply |
10 VDC min. to 42 VDC max. at input terminals. Can indefinitely withstand up to 100 VDC without failure |
| Power Supply Stability |
Less than 0.005% of span change in output per volt change at the input terminals |
| Temperature Stability |
Span and Zero: ±0.007% of span per ˚F maximum deviation from 77˚F calibration |
| Response Time to 99% of step change |
10 m Sec |
| Resolution |
Infinite |
| Accuracy |
± 0.15% of span guaranteed; ±0.10% of span typical. |
