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Miniature Pressure and Vacuum Switches
TRODEKS Engineering | Thermocouples, Pressure Transducers, Flow Meters, PID Controllers
PSW-500
PLACE ORDER 
  • External Pressure Scale and Pointer for Easy Setpoint Adjustments
  • 5 Amp Model Switches With High Proof Pressures
  • 1 Amp Gold-Plated Switches for TTL and Dry Contact Closures
  • Wetted Parts: Stainless Steel, Sealing Compound and or O-ring
  • Control Optional Audible Alarms or Relay Modules
 Specs
 Manuals (contact with email : [email protected])
 Print
Description

Description


Capable of sensing very low positive or negative pressures, reliability and long life are inherent advantages of this design. Extremely easy set point adjustment: 1) Loosen the lock ring, 2) Turn interface either left or right until pointer is at the desire pressure or vacuum on range label, 3) Retighten the lock ring, and 4) Verify the adjustment by applying pressure or vacuum. See Switch Accessories at trodeks.com forAudible Alarms and Relay Modules.

PRESSURE
MODELS		ADJUSTABLE RANGE (psig)DEADBAND
(psig)		REPEATABILITY
(psi)		MAX SYSTEM
PRESSURE (psi)		SWITCH
DECREASINGINCREASING
PSW-5210.8 to 28.51.6 to 300.8 to 1.3±0.6301 A
PSW-5222.0 to 38.33.0 to 401.0 to 1.7±1.0501 A
PSW-5233.0 to 96.54.5 to 1001.5 to 3.5±2.01001 A
PSW-5247.5 to 242.59.7 to 2502.2 to 9.0±5.02501 A
PSW-52515 to 45820 to 5005.0 to 21±105001 A
PSW-5310.8 to 16.31.2 to 200.6 to 3.7±0.83,0005 A
PSW-5322.0 to 42.52.0 to 500.8 to 7.5±2.03,0005 A
PSW-5334.0 to 914.0 to 1001.1 to 9.0±4.05,0005 A
PSW-53410 to 22210 to 2502.2 to 28±105,0005 A
PSW-53520 to 43220 to 5003.5 to 68±205,0005 A
PSW-53650 to 700100 to 80020 to 100±405,0005 A
VACUUM
MODELS		ADJUSTABLE RANGE (inHg)DEADBAND
(inHg)		REPEATABILITY
(inHg)		MAX SYSTEM
PRESSURE (inHg/psi)		SWITCH
DECREASINGINCREASING
PSW-5411.6 to 27.02.7 to 28.21.3 to 2.7±1.229.9/01 A
PSW-5424.0 to 24.85.1 to 28.21.5 to 3.2±2.029.9/01 A
PSW-5436.0 to 21.58.4 to 28.22.0 to 7.3±4.029.9/01 A
PSW-5511.2 to 22.51.6 to 28.21.1 to 5.7±1.629.9/30005 A
PSW-5521.2 to 21.88.0 to 28.28.0 to 6.4±8.029.9/50005 A
Exceeding Max System Pressure may cause a shift in the setpoint.

PSW-560 (1-AMP) AND PSW-570 (5-AMP) SERIES PERFORMANCE TABLE
MODELNOMINAL
SETPOINT
(PSI)		DEAD
BAND
1 AMP/5AMP		REPEATABILITY
(±PSI)
PSW-561
PSW-571		500
1000
1500
2000
2500		70/120
80/130
90/145
100/160
110/180		25
50
75
100
125
PSW-562
PSW-572		600
1000
1500
2000
2500
3000
3500
4000
5000		113/186
145/220
190/262
235/305
280/345
325/385
364/430
410/470
410/470		45
60
85
100
125
150
175
200
250
PSW-563
PSW-573		700
1000
1500
2000
3000
4000
5000
6000		177/455
210/620
247/730
300/820
315/980
340/1000
355/1110
375/1280		65
75
85
100
150
200
250
300


1 AMP
MODEL		5 AMP
MODEL		ADJUSTABLE RANGE (psig)MAX. SYSTEM
PRESSURE (psig)		PROOF
PRESSURE (psig)
DECREASINGINCREASING
PSW-561PSW-571500 to 2390500 to 250030004500
PSW-562PSW-572600 to 4500600 to 500050007500
PSW-563PSW-573700 to 5500700 to 600060009000
Exceeding Max System Pressure values may cause a shift in the setpoint.

SWITCH RATING
MAX. RATINGAC/DCVOLTS
RESISTIVE		AMPSAMPS
INDUCTIVE CONTACTS
1 AMP SPDT115/281/11/0.5Gold**
5 AMP SPDT250/285/55/3Silver
**Use gold contacts for dry and TTL circuitry, ex. 5 Vdc @ 50 mA or less.

SPECIFICATIONS
Approvals: UL (1 Amp switches PSW-520 and PSW-540 Series only)
Process Temp: -55 to 105°C (-65 to 221°F) (2% setpoint shift can occur below -25°C [-13°F] or above 50°C [122°F])
Cycling: Not to exceed 20 cycles/min.
Warranty: 3 year/1 million cycles
Sensor: Piston (PSW-520 and PSW-540 diaphragm)
Proof Pressure: 150% max. system pressure (PSW-530 and PSW-550 proof pressure is the max. system pressure)
Wetted Parts:
   PSW-520 and PSW-540 Series: 17-7 pH SS, 303 SS and loctite sealing compound #271
   PSW-530 and PSW-550 Series: 303 SS, 316 SS, Buna-N O-ring, loctite #271
   PSW-560 and PSW-570 Series: 17-7 PH SS, 303SS, Buna-N O-ring, and loctite #271
Enclosure:
   Body: 303 SS
   Internal Switch Housing and Lock Ring: zinc alloy with chromate finish
   Cap: black valox
Dimensions:
   PSW-520 and PSW-540: 66 L x 28 dia. mm (2.6 L x 1.06" dia.)
   PSW-560 and PSW-570: 71 L x 28 mm dia. (2.8 L x 1.10" dia.)
Pressure Port: 1/8 -27 NPT
Electrical Connection: 20 AWG, three polyvinyl insulated, unjacketed, 300 mm (12") pigtail leads
Wiring Code: Black is common, white is N.O., red is NC (Vacuum models: red is NO, white is NC)
Weight: 113 g (4 oz); PSW-520 and PSW-540 series, 85 g (3 oz)

Caution: Pressure switches are manufactured to the highest quality specifications. However, due to their economical construction, they should be used only for applications where, in the event of product failure, the risk of damage to equipment or personnel is minimal
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