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MDK Density Switch

These instruments are used to monitor the density of SF6 gas in sealed tanks, and can be widely used in medium voltage switchgear and RMU. They’re suitable for outdoor harsh external conditions. They can provide multiple solutions to support new substations and the intelligent transformation of existing substations.
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SF6 gas insulated RMU

SF6 gas Insulated Switchgear


Gas compensation ensures higher set point accuracy.

Micro switch enables normally open contacts and normally closed contacts freely switch to each other.  

High shock resistance

Normally closed contacts will not set a false alarm due to vibration

Technical Data

Scale range: 0 to 3 bar

Accuracy of set point:±2.0%  (–30 °C to +50 °C )

Degree of protection: IP42

Ambient conditions: -30°C to 60°C, relative humidity ≤95%RH

Leakage rate: ≤1 × 10-9 Pa·m3/s (Helium leakage inspection)

Interface size: G1/4 (customizable)

Installation method: axial

Electrical connection: Plug-in connection
       cable size: 0.2mm to 2.5mm2

Insulation properties:

Insulation resistance: >100 MW (500 V DC)

Withstand voltage: 2kV, 50/60 Hz 1 min

Contact type: Mirco switch

Impact rating: 15g

Contact electrical parameters: 30W/50VA, 1A (maximum)

                       220VDC/380V 50/60Hz (maximum)

Weight: 0.3kg

Pressure element: European bourdon tubes


Measurement Scale

Wide temperature range -60°C to +60°C

Can detect SF6, Air, N2, SF6 + N2 and other gases

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Lanso Instruments INC.
233 W 1st St #210, North Vancouver, Canada
233 W 1st St #210, North Vancouver, Canada