ZMJ80XD Density Monitor
ZMJ80XD Density Monitors are used to monitor SF6 gas density in sealed tanks. They are applied to indicate the gas density and to provide signal outputs when the density reaches the set values. They are designed to monitor High Voltage systems. They can provide multiple solutions to support new substations and the renovation and upgrading of existing substations.
Application of ZMJ80XD Density Monitor
SF6 Gas Insulated Switchgear (GIS)
SF6 Insulated Circuit Breakers
SF6 Insulated Pole-Mounted Switch
SF6 Insulated Transformers
SF6 Insulated Current Transformers or Voltage Transformers
SF6 Insulated Busbar Systems
Features of ZMJ80XD Density Monitor
Higher accuracy from reference chamber temperature compensation technology.Class 1.0 display accuracy for full scale range
More accurate gauge indication values and contact switching values throughout the temperature range
Suitable for indoor or outdoor installation
Up to three (3) sets of switch contacts.
High shock resistance, no need to fill oil therefore no oil leakage hazard.
Normally closed contacts will not falsely alarm due to vibration
Technical Data of ZMJ80XD Density Monitor
| Scale range: | 0～1.0MPa abs. (customizable) |
| Set point Accuracy: | ±1.0%FS（-30℃～+60℃）（gas phase） |
| Indication accuracy: | Rated pressure：±1.0%FS（+20±1℃） |
| Degree of protection: | IP65 |
| Ambient conditions: | --30°C～+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: | Connect the plug when plugging, wire diameter0.2~2.5 mm2 |
| Insulation properties: | Insulation resistance: >100 MW (DC 500V) |
| Withstand voltage: | 2kV, 50/60 Hz 1 min |
| Contact type: | Micro switch |
| Impact rating: | 50g |
| Contact electrical parameters: | 10(1.5)A,250V AC 0.1 (0.05)A,250V DC |
| Window Glass: | Laminated safety glass |
| Weight: | ≈1.2kg |
| Pressure sensitive components: | bellows and Bowden tube |
Options of ZMJ80XD Density Monitor
Different measuring ranges
Measuring medium：SF6、Air、N2、SF6+N2 and other gases
Degree of protection：IP67
Operating temperature: Optional：-40℃～+60℃
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