P290 Pneumatic-to-Current P/I Transducers

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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.

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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

Inputs	Instrument Air: 3-15 psig (0.2-1 BAR) 3-27 psig (0.2-1.8 BAR) 6-30 psig (0.4-2 BAR)
Maximum Input	3 times full scale without recalibration 4 times full scale without failure
Outputs	2 wire: 4-20 mA with over-current limit , 10-50 mA optional
Allowable Loads (24 VDC Power)	2-wire: 700 ƒ, standard. Voltage: 5k ƒ minimum
Accuracy	± 0.15% of span guaranteed; ±0.10% of span typical. Includes combined effects of linearity, hysteresis and repeatability errors
Hysteresis	Negligible
Repeatability	±0.10% of span max; ±0.03% of span typical
Resolution	Infinite
Output Ripple	None
Protection	Reverse polarity, transient, over-current
Response Time	10 m Sec to 99% of step change
Temperature Stability	Span and Zero: ±0.007% of span per °F maximum deviation from 77°F calibration
Power Supply Stability	Less than 0.005% of span change in output per volt change at the input terminals
Power Supply	10 VDC min. to 42 VDC max. at input terminals
RFI/EMI Effect	Meets or exceeds SAMA PMC 33.1, 1978, 2-abc: 0.1% of span at 10 volts/meter
Operating Temperature Range	-40°F to 167°F (-40°C to 75°C)
Storage Temperature Range	-60°F to 185°F (-51°C to 85°C)
Calibration Adjustments	Non-interactive, multiturn span and zero potentiometers with approximately ±10% of span adjustment range
Loss-of-air Indication	LED illuminates when input pressure falls below 60% of the live-zero input or, on optional alarm units, LED illuminates during alarm condition
Mounting Position Effect	None
In-process Output Monitoring	Voltage: Voltmeter with greater than 10K ƒ input resistance
Connections	Signal Air: 1/8" NPT female Electrical Wiring: Miniature terminal block accepts solid or stranded wire up to 14 AWG

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P290 Pneumatic-to-Current P/I Transducers

P290 Pneumatic-to-Current P/I Transducers

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