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ZMJ80XDR Series Density Monitors

These instruments are used to monitor SF6 gas density in sealed tanks. They are applied to indicate gas density and to provide a signal outputs when the density reaches preset threshold values. They are designed to monitor High Voltage systems
ZMJ80XDR Series Density Monitors
  • ZMJ80XDR Series Density Monitors
  • ZMJ80XDR Series Density Monitors
  • ZMJ80XDR Series Density Monitors
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Application of ZMJ80XDR Series Density Monitors

  • 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

Features of ZMJ80XDR Series Density Monitors

  • Using gas compensation, higher set point accuracy

  • Class 1.0  display for full scale

  • Suitable for indoor or outdoor installation

  • Micro switch, can switch freely between normally open and normally closed points

  • Up to four pairs of nodes, multiple options such as double alarms and double locks can be realized, making monitoring more secure and reliable

  • High shock resistance

  • No need to fill oil, no oil leakage hazard

  • Normally closed contacts will not falsely alarm due to vibration

  • RS485 bus interface, facilitating system expansion, realizing telemetering and remote control. High anti-electromagnetic interference capability

Technical Data of ZMJ80XDR Series Density Monitors

Scale range:-0.1 to 0.9MPa (customizable)
Set point Accuracy:–30~+50 ℃,±1.0%FS(±10KPa)(gas phase)
Indication accuracy:+20±1℃,±1.0%FS(±10KPa,0~0.9MPa abs.)
+20±1℃,±1.5%FS(±15KPa,1.0MPa abs.)
Sensor accuracy:calibration point: +20±1℃,±0.8%FS(±8KPa)
–30~+50 °C,±1.0%FS(±10KPa)
Degree of protection:IP65
Ambient conditions:-40°C to 60°C
Leakage rate:< 1 × 10-9 Pa·m3/s , Relative humidity ≤ 95%RH
Pressure connection:M20 × 1.5, (customizable)
Location:Bottom or back
Electrical connection:

Connect the plug when plugging, wire diameter

0.2...2.5 mm2

Insulation properties:Insulation resistance: >100 MW (500 V DC)
Withstand voltage:  2kV, 50/60 Hz 1 min (to case)
Contact type:Micro Switch
Impact rating:50g
Contact ratings:10(1.5)A,250V AC
0.1 (0.05)A,250V DC
Window:Laminated safety glass
Pressure sensitive components:bellows and Bowden tubes

Main electrical performance indicators and specifications of the remote transmission part

Power supply:24V DC
Power consumption:< 2W
Communication mode:RS485
Protocol:ModBus RTU
Baud rate:9600bps

Anti-electromagnetic interference

IEC61000-4-2:level 4 (15kV)
IEC61000-4-3:level 3 (10V / m)
IEC61000-4-4:level 4 (4kV)
IEC61000-4-5:level 4 (+/- 2kV)
IEC61000-4-6:level 3 (10V)
IEC61000-4-8:level 5 (100A / m)
IEC61000-4-9:level 5(1000A/m)
IEC61000-4-10:level 4(30A/m)

Options of ZMJ80XDR Series Density Monitors

  • Different measuring ranges

  • 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