Sales Drawings


Contact us

Click here to contact us »



Barksdale's SW2000 Electronic Pressure Switch offers the accuracy of an electronic pressure switch in an economical package. The SW2000 is available in two different configurations: as a dual pressure switch or as a single switch with integrated 4-20 mA analog output. Setpoints and deadband are easily adjusted by using the keypad and user-friendly menu. Analog transducer outputs are scalable from 25% to 100% of the full adjustable range. A 10-bit microprocessor provides built-in self diagnostics and allows for switch time delays and pressure cycling up to 100 times per second. For applications requiring precision pressure monitoring and control at an affordable price, a SW2000 Electronic Pressure Switch is the ideal solution.



  • Pressure control with internal stainless steel diaphragm
  • High accuracy (0.5%) with fully adjustable deadband
  • 2 solid state PNP contacts or 1 solid state PNP contact plus analog output
  • Digital display readout
  • Fully configurable via keypad
  • Suitable for rapid cycling (100 times per second)
  • Rotatable 320° housing (7/16-20 process connection only)
  • cULus approved

Technical specifications

General Specifications*

Linearity Error: ±0.5% f. s. at 77°F (25°C)
Repeatability: ±0.1% f. s.
Sensor Element: Piezoresistive silicone measuring sensor
Wetted Parts:

304 stainless steel
Viton® (FKM fl uorelastomer)
Aluminum die-cast
Measuring Ranges (psi): 150 750 1500 3000 6000 9000
Proof Pressure (psi): 220 1100 2175 4400 9000 11,600
Process Connection(male): 1/4-18 NPT, 7/16-20 37° JIC, G1/4, 7/16-20
Electrical Connection: Plug M 12 x 1; 4-pin
Power Supply: 15 to 32 VDC reverse polarity protected
Power Consumption: approx. 50 mA (without load)
Scanning Rate:

10 bit (1,024 steps per measure span)
200/s (for peak value memory)
Analog Output:
Current Output:

Load Influence:
Scanning Rate:
Voltage Output:
Adjustment Range

4-20 mA
max. Rl = (Ub-12 V) / 20 mA
Rl = 600 ohm at 24 VDC
0.3% / 100 ohm
5 ms
0 to 10 VDC (optional)
max. 10 mA, short circuit-proof
25% to 100% f. s.
Transistor Switching Output(s) PNP:
Switching Function:
Adjustment Range and Hysteresis:
Switching Frequency:
Contact Rating:
Status Display(s):

Normally open / normally closed, standard-/window-mode
0% to 125% f. s.
max. 100 Hz
Switching current 400 mA, short-circuit-proof
0.0 to 9.9 s adjustable
Green LED(s)
Digital Display:
Display Range:
Display Rate:
3-digit 7-segment LED display, height 10 mm, (0.39 inches), red
-1 to 999
Error Display: Orange LED (alarm)
Local Operating Interface: 3 push buttons
Temperature Range:

-13°F to 212°F (-25°C to +100°C)
14°F to 158°F (-10°C to +70°C)
-22°F to 176°F (-30°C to +80°C)
Temperature Influence: ±0.2% f.s. /10K
Compensation Range: 14°F to 158°F (-10°C to +70°C)
Enclosure Rating: Type 4, for indoor use only, (NEMA 4 / IP65)
Dimensions (Housing): 1-7/16" X 5-1/8" (36 mm x 130 mm) (without electrical plug)
Additional Features: Microprocessor, self-monitoring with error code display; all parameters are confi gured by keypad.
Keypad lock, rugged construction, vibration- and shockproof, long term stability.
Weight: Approx. 0.4 lb (200 g)
Approvals: c/ULus: file No. E42816
* See product confi gurator for additional options.

Connection Chart

Plug M 12 X 1 4 pin Model with 2 Switching Outputs Model with 1 Switching Output and 1 Analog Output
Pin 1 +UB(15-32 V DC) +UB (15-32 V DC)
Pin 2 SP2 (0.4 A) Analog
Pin 3 O V O V
Pin 4 SP1 (0.4 A) SP1 (0.4 A)


Process Connections "A" B"
1/4-18 NPT .67"[17 MM]
G 1/4 .55"[14 MM]
7/16 37° JIC (STRAIGHT) .63"[16 MM]
7/16 SAE-4-20 UNF .365" [9 mm]