Low Differential Pressure Switches, SPDT Relay Output - Discontinued

PSW-141

Low Differential Pressure Switches, SPDT Relay Output

^AUD405.00 PSW-141-AR

PLACE ORDER

Virtually Impervious to changes in Position
Fast Response Time Due to Low Internal Volume
No Moving Parts - Solid State Circuity for Long Life
Compact Size
Low Power Consumption

Description

LIMITED STOCK AVAILABLE. This item is being discontinued.
Please see the PSW-150 Series as a possible substitute.

PSW141 Series low differential pressure switches operate on the capacitive principle and are capable of sensing very low positive or negative pressures. In a capacitive cell, a very lightweight, responsive diaphragm deflects slightly when pressure is applied. This deflection results in a change in capacitance which is then detected and processed by solid state circuitry. Reliability and long life are inherent advantages of this design.

SPECIFICATIONS
Set point is adjusted by a 20-turn potentiometer for fine resolution
Repeatability: ±1% of set point
Deadband: Factory set to 7% of range to prevent relay chatter
Media Compatibility: Suitable for air or inert gases
Overpressure: 8 times range maximum
Port Connections: 4.8 mm ( 3 /16 ) dia. tube; suitable for 3.2 mm ( 1 /8 ") I.D. Tygon tubing
or 6.3 mm ( 1 /4 " O.D.) polyethylene tubing
Power Requirements:
12 Vdc models* = 9.5 to 16 Vdc @ 0.25 W
24 Vdc models* = 19 to 32 Vdc @ 0.25 W
24 Vac models = 19 to 32 Vac @ 1.50 W
120 Vac models = 100 to 140 Vac @ 1.70 W
* Reverse polarity protected
Electrical Connections: 3 /8 " terminal strip with #6 screw
Output: SPDT (form C) relay 1 A, 24 Vdc or 0.5 A, 120 Vac resistive
0.3 A, 24 Vdc or 0.2 A, 120 Vac inductive 300,000 cycles minimum
Isolation: Input to output 500 Vrms min.
Dimensions: 76 W x 131 L x 36 H mm (3.0 x 5.15 x 1.4")
Weight: 230 g (0.5 lb)
Case Material: Flame retardant, glass-reinforced Noryl
Operating Temperature: 0 to 45°C (32 to 113°F)
Temperature Effect on Set Point: ±0.05%/°C
Humidity Range: 20 to 90% RH non-condensing
Shock: 10 g’s (11 ms)
Vibration: 5 g’s to 50 Hz

Examples of pricing for popular models is referenced in the "To Order" box. Use the "Part Number Builder" below to get pricing for all available models.

Place Order(Specify Model Number)

Part Number/ Desc.

Qty

Description

PSW-141-AF

Consult Sales

Availability:

12 Vdc powered pressure switch with 0 to 0.1 in H2O range energizing on falling pressure

PSW-141-AR

Consult Sales

Availability:

12 Vdc powered pressure switch with 0 to 0.1 in H2O range energizing on rising pressure

PSW-141-BR

Consult Sales

Availability:

12 Vdc powered pressure switch with 0 to 0.2 in H2O range energizing on rising pressure

PSW-141-CR

Consult Sales

Availability:

12 Vdc powered pressure switch with 0 to 0.3 in H2O range energizing on rising pressure

PSW-141-DR

Consult Sales

Availability:

12 Vdc powered pressure switch with 0 to 0.5 in H2O range energizing on rising pressure

PSW-141-ER

Consult Sales

Availability:

12 Vdc powered pressure switch with 0 to 1.0 in H2O range energizing on rising pressure

PSW-141-FR

Consult Sales

Availability:

12 Vdc powered pressure switch with 0 to 2.0 in H2O range energizing on rising pressure

PSW-141-GR

Consult Sales

Availability:

12 Vdc powered pressure switch with 0 to 3.0 in H2O range energizing on rising pressure

PSW-141-HR

Consult Sales

Availability:

12 Vdc powered pressure switch with 0 to 5.0 in H2O range energizing on rising pressure

PSW-141-IR

Consult Sales

Availability:

12 Vdc powered pressure switch with 0 to 10.0 in H2O range energizing on rising pressure

† All amounts shown in AUD
Note: (1) for 24 Vdc power specify model PSW142, no add’l charge; for 24 Vac power specify model PSW143; for 120 Vac power specify model PSW144, no add’l charge. (2) For switch energizing on falling pressure, change the suffix “R” to “F”; no add’l charge.

Part Number Builder

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	(1)	(2)	(3)
PSW-14

Option Descriptions:

(1) Power select from:
1 for 12 Vdc power
2 for 24 Vdc power
3 for 24 Vac power
4 for 120 Vac power

(2) Range (Inches of water) select from:
-A for 0 to 0.1
-B for 0 to 0.2
-C for 0 to 0.3
-D for 0 to 0.5
-E for 0 to 1.0
-F for 0 to 2.0
-G for 0 to 3.0
-H for 0 to 5.0
-I for 0 to 10.0

(3) Output Function select from:
R for energize on rising pressure
F for energize on falling pressure

Note: All combinations may not be valid, check spec sheet for valid part numbers.