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FEMA DCM/DNM | Overpressure Switches and Monitors | G1/4 + G1/2, -25 to 70 °C, SIL 2
The FEMA DCM/DNM series covers overpressure switches and pressure monitors for general mechanical engineering, printing machines, pneumatics and hydraulics. Units work over an ambient range of -25 to 70 °C and connect through a G1/4 internal or G1/2 external thread. On DCM types the switching differential is fixed, while DCMV types allow it to be set from outside with a screwdriver.
Key features
- Bellows sensing technology with wide pressure ranges
- Calibrated for falling pressure; the reset point sits higher by the switching differential
- SPDT microswitch rated 5 A inductive / 8 A resistive
- Housing of seawater-resistant die-cast aluminium GD AlSi12
- SIL 2 according to IEC 61508-2
- Specifications
| Series code | DCM-DNM-SERIES |
| Brand | FEMA |
| Series | DCM / DCMV / DNM |
| Pressure Type | Overpressure (relative) |
| Ambient Temperature | -25 to 70 °C |
| Process Connection | G1/4 internal, G1/2 external |
| Switch | SPDT microswitch, 5 A inductive / 8 A resistive |
| Scale Calibration | Falling pressure |
| Housing | Die-cast aluminium GD AlSi12 |
| Safety Rating | SIL 2 (IEC 61508-2) |
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