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DDM60R Digital Density Monitor

DDM60R Digital Density Monitor are used to monitor the density of SF6 gas in sealed tanks. It has real-time remote transmission of SF6 gas density change data, realizes online remote monitoring function, and can display the gas density digitally on site. When the density value reaches the set value, the contact output alarm signal. Suitable for medium voltage system monitoring. It can be used in the new substation building and the renovation and upgrading of existing substation.
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  • DDM60R-Remote-Transmission-Density-Monitor-01
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Drawing of DDM60R Digital Density Monitor

drawing of dm60r remote transmission density monitor



Application of DDM60R Digital Density Monitor


  • SF6 Gas Insulated Swithchgear (GIS)

  • SF6 Insulated Circuit Breaker

  • SF6 Insulated Pole-Mounted Switch

  • SF6 Insulated Transformer

  • SF6 Insulation Current Transformer or Voltage Transformer

  • SF6 Insulated Bus System



Feature of DDM60R Digital Density Monitor


  • Local digital display and control

  • The microswitch is used as the signal output device to realize the free switching between normally open and normally closed points 

  • Temperature Compensated.

  • The alarm value can be set on site and can be applied to cabinets with different alarm values

  • Small size, installation interface can be customized, convenient and reliable

  • RS485 bus interface, easy to do the system expansion, and to achieve telemetry, remote control functions. Strong EMC capability


Technical Data of DDM60R Digital Density Monitor


Scale range:-0.1 ~ 0.9MPa
Pressure±0.5%FS
Temperature±1
Pressure at 20℃:±1.0%FS
Ambient conditions: -40℃ ~ +70, relative humidity: ≤95%RH
Degree of protection:IP65
Leakage rate:1 x 10-9Pa·m3/s (Helium leakage inspection)
Process connection:M20 x 1.5 (customizable)
Installation method:Radial or Axial
Electrical connection: Preset cable
Insulation resistance: >100MΩ (DC500V)
Power frequency withstand voltage: 2kV, 50/60Hz, 1min
Contact type:Magnetic holding electronic relay
Impact rating30 g
Maximum switching voltage380VAC/240VDC
Maximum switching current5A
Watch glass:Laminated safety glass
Weight:0.3kg



Main electrical performance indicators and specifications of the remote transmission part


Operating voltage: 10~30VDC

  • Power consumption :<1W(max. 1.5W)

  • Communication mode :RS485

  • Communication protocol: Modbus RTU

  • Baud Rate : 9600bps

  • EMC Class:

IEC61000-4-2: Level 4

IEC61000-4-3: Level 3

IEC61000-4-4: Level 4

IEC61000-4-5: Level 4

IEC61000-4-6: Level 3

IEC61000-4-8: Level 5

IEC61000-4-9: Level 5

IEC61000-4-10: Level 5


Options of DDM60R Digital Density Monitor


  • Measuring Medium: SF6, Air, N2, SF6+N2 and other gases


Brands We Cooperate
abb
siemens
schneider
toshiba
hyosung
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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