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ZMJ100PRW Wireless Remote Transmission Density Monitor

These instruments 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 able to transmit the real-time data of SF6 gas density remotely and realize the online remote monitoring. They are suitable for monitoring high-pressure system. The SF6 gas density data can be remotely monitored and transmitted by low-power, high anti-interference wireless communication methods. They can provide multiple solutions to support new substations and the intelligent transformation of existing substations.
ZMJ100PRW Wireless Remote Transmission Density Monitor
  • ZMJ100PRW Wireless Remote Transmission Density Monitor
  • ZMJ100PRW Wireless Remote Transmission Density Monitor 1
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Drawing of ZMJ100PRW Wireless Remote Transmission Density Monitor


ZMJ100PRW Wireless Remote_Transmission Density Monitor


Application of ZMJ100PRW Wireless Remote Transmission 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 ZMJ100PRW Wireless Remote Transmission Density Monitor


  • The temperature compensation device ensures higher accuracy of measurements. 

  • Suitable for indoor or outdoor installations. 

  • AISI 304 hermetic sealed stainless steel case 

  • Gas connexion tubes are made of stainless steel AISI 316. 

  • Wireless communication and convenient for the networking of sites 

  • Strong anti-interference capability and long distance transmission 

  • Using the concentrator as a center, these instruments can achieve autonomous wireless networking and the concentrator outputs all monitoring data through the RS485. 

  • Up to four pairs of contacts can achieve an overpressure alarm, a dual alarm or a double lock and many other options to make monitoring more secure and reliable.


Technical Data of ZMJ100PRW Wireless Remote Transmission Density Monitor


Nominal Size: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:Class2.5
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)
Pressure connection:M20×1.5 (customizable)
Installation method:radial or axial
Electrical connection:Compact pluggable box with M20 x 1.5 cable gland
cable size:1.5mm2 recommended, 2.5mm2 maximum
Insulation properties:
Insulation resistance:>100 MW (500 V DC)
Withstand voltage:2kV, 50/60 Hz 1 min
Contact type:Pointer driven magnetic snap action signal contacts
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:1.2kg
Pressure element:European bourdon tubes
Bending Antenna Type for indoor, Sucker Amtenna Type for outdoor


Main electrical performance indicators and specifications of the remote transmission part


Power supply:DC 24V
Power consumption:< 2W
Communication mode:Wireless
Protocol:ModBus
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 3 (+/- 2kV)
IEC61000-4-6:level 3 (10V)
IEC61000-4-8:level 5 (100A / m)


Options of ZMJ100PRW Wireless Remote Transmission Density Monitor


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

  • Oil-filled

  • Measuring medium: 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