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HVAC Style Low Differential Pressure Transmitters
Discontinued Product

PX291

 | PX291

¥36,000 PX291-010WD5V

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

商品説明

The PX291 is no longer available. Please see the PX655 series as a possible substitute or contact our sales department.


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: gAh 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 gBh 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"
このサイトの金額はすべて日本円(税抜)で表示しています
注: See Specifications for desription of the elevated zero option.

部品番号ビルダー

下記から仕様構成を選択し、ご注文ください
以下からオプションを選択:


(1) Range :
0.1 : 0-0.1
0.2 : 0-0.2
0.3 : 0-0.3
0.5 : 0-0.5
001 : 0-1
002 : 0-2
003 : 0-3
005 : 0-5
010 : 0-10

(2) Output :
5V : 0 to 5 Vdc
I : 4 to 20 mA

(3) Offset Options :
: Leave Blank For No Offset
-A : 1/4 Span Offset
-B : 1/2 Span Offset
注: 有効な部品番号については、「商品仕様(PDF)」を参照ください。
ご不明な場合は、カスタマーサービス(0120-040-572 もしくは esales@jp.omega.com)へお問合せください。