P290 Pneumatic-to-Current P/I Transducer

Explosion-proof housing allows it to stand up to the most hazardous and demanding applications.

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.

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.

Ordering Information

Part Number	Description
P290M	P/I Module, 2-wire, 4-20
P290DC	Adapter for C type rail
P290DG	Adapter for G type rail
	P/N	Standard Ranges	P/N	Custom Ranges (psig) Specify range
	P11	3-15 psig (0.2-1 BAR)	P50	0-.72 to 0-6.0
	P12	3-27 psig (0.2-1.8 BAR)	P51	0-6.0 to 0-18.0
	P13	6-30 psig (0.4-2 BAR)	P52	0-18.0 to 0-30.0
			P53	0-30.0 to 0.50.0
Options	P/N	Description
	P31	CSA general purpose certification