Improve safety and reduce maintenance costs
An electronic pressure switch offers a multitude of advantages in comparison to a mechanical pressure switch. These advantages include greater accuracy, freedom from contact wear out, excellent long-term stability, simpler operation and a high number of switching cycles, and many more.
Advanced electronic pressure switches
Danfoss’ electronic pressure switch MEP 2000 series offers advanced control to improve safety, extend equipment lifecycles and reduce maintenance costs.
The electronic pressure switch is available in two versions. The single switch output version has customised hysteresis and time constant. It also features protection against short circuits, incorrect wiring and overloading. The dual output version includes both switch and analogue outputs. For both versions the switch is defined by the customer and pre-programmed in our factory.
Both versions can be supplied with a pulse-snubber to protect the sensor in applications exposed to cavitation, liquid hammer and pressure peaks.
MEP 2200 and MEP 2250 versions:
For use in Mobile Hydraulic applications Dual output
Output 1: Switch output
- Hysteresis 1% FS
- Time constant 1 mS Output 2: Analogue output
- Ratiometric or absolute voltage output
MEP 2600 and MEP 2650 versions:
For use in Mobile Hydraulic, Industrial Hydraulic and Air Compressor applications
Single output
Output 1: Switch output
- Hysteresis 1 – 8% FS
- Time constant 8 – 512 mS
- Immunity towards VFD
The series are available in 2 versions:
- MEP 2200 and MEP 2600 – without integrated pulse-snubber
- MEP 2250 and MEP 2650 – with integrated pulse-snubber
The integrated pulse-snubber offers a high degree of protection against cavitations and liquid hammer. The well thought out design results in excellent vibration stability and an exceptional robustness.
The high degree of EMI protection equips the electronic pressure switch to meet most requirements.
Features
- Designed for use in severe OEM applications
- Excellent long term stability with zero drift
- No leakages due to fully welded design
- Wetted parts made of stainless steel
- For medium and ambient temperatures up to 125 °C
- Dual output versions with switch function and an analogue output signal: 0 – 5 V, 1 – 5 V, 1 – 6 V, 0 – 10 V, 10 – 90% ratiometric voltage as additional output
- Switch versions with customized hysteresis and time constant
- A wide range of pressure and electrical connections
- EMC protection up to 100 V/m
- Thermal overload protected
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Approvals
- UL 508 recognized
Specifications
Technical Data
Performance (EN 60770)
| MEP 2200 and MEP 2250 | MEP 2600 and MEP 2650 | |
| Dual output (Switch and Analogue output) | Switch output (Switch – output) | |
| Switch Hysteresis | ~ 1% FS | 1 – 8% FS |
| Switch Time delay | 1 mS | 8 – 512 mS |
| Accuracy (incl. non-linearity, hysteresis and repeatability) | 2% FS | 2% FS (1 – 5% Hysteresis) |
| 3% FS (6 – 8% Hysteresis) | ||
| Thermal accuracy | < ± 0.15% FS / 10K | < ± 0.15% FS / 10K |
Overload and burst pressure – without pulse-snubber
| Nominal pressure [bar] | 10 | 16 | 25 | 40 | 60 | 100 | 160 | 250 | 400 | 500 | 600 | 1000* | 1600* | 2200* |
| Overload pressure | 30 | 48 | 80 | 80 | 140 | 200 | 320 | 500 | 800 | 1400 | 1400 | 2000 | 2500 | 3000 |
| Burst pressure | 400 | 640 | 800 | 800 | 1400 | 2000 | 1600 | 2500 | 4000 | >4000 | >4000 | >4000 | >4000 | >4000 |
Overload and burst pressure – with integrated pulse-snubber
| Nominal pressure [bar] | 10 | 16 | 25 | 40 | 60 | 100 | 160 | 250 | 400 | 500 | 600 |
| Overload pressure | 30 | 48 | 120 | 120 | 210 | 300 | 480 | 750 | 1200 | 2100 | 2100 |
| Burst pressure | 400 | 640 | 800 | 800 | 1400 | 2000 | 1600 | 2500 | 4000 | > 4000 | > 4000 |
Electrical Specifications
| MEP 2200 and MEP 2250 | MEP 2600 and MEP 2650 | |
| Type | Dual output (Switch and Analogue – output) | Switch output (Switch – output) |
| Max. load 1) | 500 mA | 500 mA |
| Electrical connector types | See page 8 | See page 8 |
| Max. inrush load | 1.06 AM | 600 mA |
| Supply voltage | 8 – 32 V | |
| Over/reverse voltage | ± 36 V | ± 33 V |
Secondary output reference for MEP 2200 and 2250
| Nom. output signal (Short-circuit protected) | NPN and PNP | NPN | |
| 0 – 5, 1 – 5, 1 – 6 V | 0 – 10 V | 10 – 90% | |
| ratiometric | |||
| Supply voltage [UB], polarity protected | 8 – 32 V | 12 – 32 V | – |
| Supply – current consumption | 4.5 mA | 4.5 mA | 4.5 mA |
| Output inpedance | ≤ 90Ω | ≤ 90Ω | ≤ 90Ω |
| Load [RL] (connected to 0 V) | RL ≥ 10kΩ | RL ≥ 10kΩ | RL ≥ 5kΩ |
| Load [RL] (connected to + V) | Not possible | Not possible | RL ≥ 5kΩ |
Environmental conditions
| Media temperature range | – 40 – 125 °C | |
| Ambient temperature range | -40 – 125 °C | |
| Compensated temperature range | – 40 – 125 °C | |
| Transport temperature range | -55 – 150 °C | |
| EMC – Emission | EN 61326-2-3: 2013 | |
| EMC Directive | 2014/30/EU | |
| EMC – Immunity RF field | 100 V/m, 26 Mhz – 1 Ghz | EN 61326-2-3 Cable < 30 m |
| 3 V/m, 1.4 GHz – 2.7 GHz | ||
| Electrical performance comply with | ISO 7637 pulse 1 – 4 V (MEP 26XX) | |
| ISO 7637-2 / ISO 16750 (MEP 22XX) (pulse 5b <45 V) | ||
| Vibration stability | 20 g, 10 – 2000 Hz, sinus | EN 60068-2-6 |
| Shock resistance | 100 g | EN 60068-2-27 |
| Enclosure (depending on electrical connection) | see page 8 | |
Mechanical conditions
| Materials | Wetted parts | 17 – 4 PH |
| Enclosure | AISI 304 or plastic | |
| Pressure connection | 17 – 4 PH | |
| Electrical connection | see page 8 |
Download Datasheet : Danfoss MEP Electronic Pressure Switches
Reference : danfoss.com