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ZMJ100P Density Monitor

These gas density monitors are used to monitor SF6 gas density in sealed tanks. They are applied to indicate the gas density and to provide a signal outputs when the density reaches the set value. They are designed to monitor High Voltage systems. They can provide multiple solutions to support new substations and the intelligent transformation of existing substations.
Density Monitor
  • Density Monitor
  • Gas Density Monitor
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Drawing of ZMJ100P Gas Density Monitor


ZMJ100P Density Monitor


Application of ZMJ100P Gas Density Monitor


  • SF6 Gas Insulated Switchgear (GIS)

  • SF6 Insulated Circuit Breakers

  • SF6 Insulated Pole-Mounted Switch

  • SF6 Insulated Transformers

  • SF6 Insulated Mutual Inductor

  • SF6 Insulated Busbar Systems


Feature of ZMJ100P Gas Density Monitor


  • The temperature compensation unit ensures greater accuracy of instrumentation pressure measurement. 

  • Suitable for installation indoors or outdoors. 

  • Hermetically sealed case of stainless steel AISI 304 

  • AISI 316 stainless steel gas connexion tubes 

  • The value on site and the output signals are not affected by the external environment (e.g. altitude factor). 

  • The electric contact switch design ensures an accurate and stable gas monitoring system which monitors sf6 density.

  • Up to four gas density switch contacts can achieve overpressure alarm, dual alarm or double lock, and many other solutions to secure and reliable monitoring


Technical Data of ZMJ100P Gas Density Monitor


Case diameter:100mm
Scale range:-0.1 to 0.9MPa (customizable)
Accuracy:(related to the measuring span; SF6 in gas phase)
a) At 20°C:Class 1.0 or 1.5
b) -40°C to +60°C:Class 2.5
Degree of protection:IP65
Ambient conditions:-40°C to +60°C, relative humidity≤95%RH
Leakage rate:≤1 × 10-9 Pa·m3/s (Helium leakage inspection)
Interface size:M20 × 1.5, (customizable)
Installation method:radial or axial
Electrical connection:Plug-in connection M20 × 1.5 sealing head
cable size:1.5mm2 recommended, 2.5mm2 maximum
Insulation properties:
Insulation resistance:>100 MW (DC 500V)
Withstand voltage:2kV, 50/60 Hz 1 min
Contact type:Magnetic snap-action switch
80%Ag, 20%Ni, 10µm Au plated
Impact rating:50g (oil-filled), 30g (non-oil-filled)
Contact electrical parameters:30W/50VA, 1A (maximum)
220VDC/380V 50/60Hz (maximum)
Watch glass:Laminated safety glass
Weight:1.0kg
Pressure element:

European bourdon tubes


Options of ZMJ100P Gas Density Monitor


  • Oil-filled

  • Full Range Indication: Class 1.0

  • Power-frequency withstand voltage: 2.5kV 50/60 Hz 1minli

  • 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
info@lansoinstruments.com
233 W 1st St #210, North Vancouver, Canada
info@lansoinstruments.com