The DCM/DNM series is designed for monitoring overpressure in industrial applications. The devices have a robust construction and can be adjusted externally using a screwdriver. Depending on the version, different materials are used for the pressure-wetted parts.

Technical data

• Pressure connection: Male thread G 1/2 (pressure gauge connection) according to DIN 16 288 and female thread G 1/4 according to ISO 228 Part 1.
• Switching device: Robust housing (200) made of seawater-resistant die-cast aluminium GD Al Si 12.
• Protection class: IP54 with vertical installation position.
• Pressure sensor materials: Cu + brass.
• Installation position: Vertical upwards and horizontal. DCM4016 and DCM4025 vertical upwards.
• Ambient temperature at the switching device: -25 to +70 °C, except DCM4016, DCM4025 and DCM1000: -15 to +60 °C.
• Max. medium temperature: The maximum medium temperature at the pressure sensor must not exceed the permissible ambient temperature at the switching device. Short-term temperatures up to 85 °C are permissible.
• Mounting: Directly on the pressure line (pressure gauge connection) or on a flat surface using 2 screws, 4 mm diameter.
• Switching pressure: Externally adjustable using a screwdriver.
• Switching differential: Not adjustable for DCM types.
• Contact configuration: Single-pole changeover contact.
• Switching capacity: 250 V AC resistive 8 A, 250 V AC inductive 5 A, 250 V DC resistive 0.3 A, 24 V DC 8 A.