PX291 - Discontinued

PX291

Voltage or Current Outputs
Low Power Consumption
No Moving Parts to Wear
Position Insensitive
Reliable Long Term Stability
Rugged Flame Retardant Case

Descripción

The PX291 Series of differential pressure transmitters is designed to measure low pressures while using little power. A selection of ranges is available to meet most industrial and laboratory applications. The transmitters are housed in a flame-retardant, glass-reinforced polyphenylene oxide case. Electrical connections are made by means of a 3.8" terminal with #6 screws. There are no moving parts and the transducers are virtually position insensitive. The span and zero settings are made via 20-turn potentiometers, for easy and precise adjustments. The pressure sensing element is a differential capacitive cell for the low pressure ranges from 0.1 to 5 inH2O and a piezoresistive chip for ranges above 5 inH2O. Both sensors ensure reliability and long-term stability.

SPECIFICATIONS
General: Measures differential, gage pressure or vacuum
Excitation: 11 to 32 Vdc reverse polarity protected
Voltage Output Models: 0 to 5 Vdc 3-wire, source or sink 3.5 mA, short circuit protected, current draw = 10 mA
Current Output Models: 4 to 20 mA, output limited to approximately 3.85 mA at low end and 25 mA at high end Maximum Current Loop Resistance: RL = (Vs - 11) x 50
Accuracy: ±1% includes linearity, hysteresis
Calibration: NIST-traceable
Operating Temperature: 0 to 45°C (32 to 115°F)
Temperature Effects:
Zero: ±0.05%/°C
Span: ±0.02%/°C
Operating Humidity Range: 10 to 90% non-condensing
Shock Resistance: 10 g (11 ms)
Vibration Resistance: 5 g to 50 Hz
Overpressure: See order chart for maximum safe momentary overpressure
Media Compatibility: Suitable for air or inert gas
Pressure Connection: 3.16" Dia. tube connections with integral filters at both ports, suitable for 1.8" ID TygonR or polyurethane tubing (3 to 4 mm) or 1.4" OD polyethlene tubing (6 mm)
Electrical Connection: External 3.8" terminal strip with #6 screws
Case Material: Flame-retardant, glass-reinforced polyphenylene oxide
Dimensions: 36 H x 76 W x 131 mm L (1.4H x 3.0W x 5.15"L)
Weight: 190 g (6.72 oz)

OFFSET OPTIONS
If the measured differential pressure is expected to go from positive to negative, a transducer with offset (elevated zero) should be ordered. The standard models in the order chart have no offset (i.e., at zero differential pressure, the output is 0 Vdc or 4 mA). 2 offset options are available: gAh 1.4 Span Offset At zero differential pressure, the output is 1.25 Vdc or 8 mA
Allowable pressure excursion: -33% to 100% of range gBh 1.2 Span Offset At zero differential pressure, the output is 2.5 Vdc or 12 mA
Allowable pressure excursion: -100% to 100% of range
Examples: PX291-001WD5V-A will have a range of 1"

Realizar Pedido(Especifique el número de modelo)

Número de pieza/Desc.

Cant.

Descripción

PX291-001WDI

Consult Sales

Stock:

has a range of 1.00 inH2O at 20 mA and 0 differential pressure at 4 mA,

PX291-001WD5V

Consult Sales

Stock:

has a range of 1.00 inH2O at 5 Vdc and 0 differential pressure at 0 Vdc

† Todos los precios se muestran en EUR
Notas: See Specifications for desription of the elevated zero option.

Referencia del fabricante

Construya su Referencia Abajo

	(1)	(2)	(3)	(4)
PX291-

Descripciones de las opciones:

(1) Range Seleccione:
0.1 para 0-0.1
0.2 para 0-0.2
0.3 para 0-0.3
0.5 para 0-0.5
001 para 0-1
002 para 0-2
003 para 0-3
005 para 0-5
010 para 0-10
020 para 0-20
030 para 0-30
050 para 0-50
100 para 0-100

(2) Units Seleccione:
WD para Range in inH20
D para Range in psid

(3) Output Seleccione:
5V para 0 to 5 Vdc
I para 4 to 20 mA

(4) Offset Options Seleccione:
para Leave Blank For No Offset
-A para 1/4 Span Offset
-B para 1/2 Span Offset

Notas: No todas las combinaciones pueden ser válidas. Verifique en la hoja de especificaciones para números de parte válidos