Descrição
A pressure switch is an active electromechanical device that controls the pressure in a system to ensure the safety and proper operation of a machine. Pressure switches work like switches, opening or closing a circuit that powers a device, such as a pump, when a certain pressure is reached.
Electronic pressure switches are devices that generate on/off signals and often also an additional analog output signal proportional to the pressure. They are factory-programmed to the desired switching points or feature a programming interface with integrated display and buttons.
Main features of the EPT4000 pressure switch
- Measuring ranges from 100 mbar to 600 bar
- Gauge pressure and absolute pressure
- Accuracy: 0.5% FSO (Typical)
- Temperature compensation
- Configurable PNP / NPN digital output
- Configurable analog output
- 4-digit display (-999 … 9999)
Applications
- Control, monitoring, and alarm systems in industrial applications
- Control of hydraulic units
- Equipment and piping protection
Technical Specifications of EPT4000 Pressure Switch |
|
Model | EPT4000 |
Accuracy | 0.5% FS at 25oC (Typical) – (Linearity, hysteresis and repeatability) |
Operating Temperature | -20 to +85 oC |
Temperature Compensated Range | -10 to +70 oC |
Vibration | 20 g RMS (20 to 2000Hz) |
Shock resistance | 100 g (per 10ms) |
Operation Cycles | 10×105 |
Lifelong Stability | 0.3% FS (full scale) |
Digital output signals (S1 and S2) | PNP and NPN, normally open (NO) or normally closed (NC) |
Analog output signal | 4 to 20mA |
Output current of S1 and S2 | Up to 500 mA |
Feed | 12 to 30VDC |
Maximum current consumption | Up to 30 mA at 24VDC |
Response Time | < 10 ms |
Voltage Drop | < 1V |
Maximum load | < 500 ohm |
Insulation resistance | 100 MΩ to 100 VDC |
Electromagnetic compatibility test | IEC61000-6-2/IEC61000-6-3 |
Reverse polarity protection | The instrument does not damage in non-operational |
Instrument body | 304 stainless steel |
Diaphragm | 316L stainless steel |
Sealing | NBR or Viton O-ring |
Internal filling | Silicone oil |
Protection | IP66 |
Weight | 300 grams without the handle |
Dimensions
Threaded model | Model with fastening clamp |
Electrical Connections
M12x1 (5-pin) connector |
Signal |
Pin |
+ Feeding | 1 – Brown | |
– Feeding | 3 – Blue | |
S1 digital output | 4 – Black | |
S2 digital output | 2 – White | |
Analog output 4 to 20mA | 5 – Gray
|
PNP connection |
NPN connection |
Operating Ranges
Code |
Nominal pressure (bar) |
Gauge |
Sealed Gauge |
Absolute |
Code |
Nominal pressure (bar) |
Gauge |
Sealed Gauge |
Absolute |
|
01 | 0…0.1 | x | 19 | 0…600 | x | |||||
02 | 0…0.2 | x | 20 | -0.1…+0.1 | x | |||||
03 | 0…0.35 | x | x | 21 | -0.2…+0.2 | x | ||||
04 | 0…0.7 | x | x | 22 | -0.5…+0.5 | x | ||||
05 | 0…1 | x | x | 23 | -1…0 | x | ||||
06 | 0…1.6 | x | x | 24 | 0…-1 | x | ||||
07 | 0…2.5 | x | x | 25 | -1…+1 | x | ||||
08 | 0…4 | x | x | 26 | -1…+1.6 | x | ||||
09 | 0…6 | x | x | 27 | -1…+2.5 | x | ||||
10 | 0…10 | x | x | 28 | -1…+4 | x | ||||
11 | 0…16 | x | x | x | 29 | 1…+6 | x | |||
12 | 0…25 | x | x | x | 30 | -1…+9 | x | |||
13 | 0…40 | x | 31 | -1…+10 | x | |||||
14 | 0…60 | x | 32 | -1…+16 | x | |||||
15 | 0…100 | x | 33 | -1…+25 | x | |||||
16 | 0…160 | x | 34 | 0.8…2 | x | x | ||||
17 | 0…250 | x | ||||||||
18 | 0…400 | x |
Electronic pressure switch EPT4000 code formation
Model |
Track |
Type |
Digital output |
Outputs |
Pressure connection |
Electrical connection |
EPT4000 | Code | – G – Gauge
– A – Absolute |
– P – PNP
– N – NPN |
– S1 – 1 x digital output
– S2 – 2 x digital output – S3 – analog output – S4 – 1 x digital output + 1 analog output – S5 – 2 x digital outputs + 1 analog output |
– 01 G¼ male
– 02 G½ male – 03 – Tri-Clamp 1-½” – 04 – Tri-Clamp 2″ – 05 – G½ Flush – 06 – ½ NPT Flush – 07 – M20x1.5 Flush – 99 – on demand |
– E1 – M12-5 pin connector/cable L=2m
– E2 – M12-5 pin connector/cable L=5m – E3 – M12-5 pin connector/cable L=10m
|
Accuracy |
Label |
– A1 0.25%FS
– A2 0.5%FS (Standard) |
– S – Standard
– N – Neutral – C – Customized label |
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