ZMJ100PR Density Monitor
ZMJ100PR Density Monitor is used to monitor the density of SF6 gas in the sealed gas tanks, which can locally display the gas density on-site, and send alarm signals when the density reaches the set values. Furthermore, it can transmit the real-time SF6 gas density data remotely, to achieve online remote monitoring function. Ideally suited for the high voltage systems. It can be used in the new substation building and the renovation and upgrading of existing substation.
Drawing of ZMJ100PR Density
Application of ZMJ100PR Density
SF6 Gas Insulated Swithchgear (GIS)
SF6 Insulated Circuit Breaker
SF6 Insulated Pole-Mounted Switch
SF6 Insulated Transformer
SF6 Insulation Current Transformers or Voltage Transformers
SF6 Insulated Bus System
Feature of ZMJ100PR Density
With temperature compensation, ensuring higher measuring accuracy
Mechatronics design, has precision mechanical structure, and has real-time remote transmission function of electronic signals and on-site dispalyand control.
RS485 bus interface, easy to do the system expansion, and to achieve telemetry, remote control functions. Strong EMC capability.
Suited for different indoor and outdoor installation requirements.
AISI 304 hermetically sealed stainless steel case
The connecting parts are made of AISI 316 stainless steel
The field display value and output signal are not affected by the external environment such as altitude.
Up to sets of contacts, can achieve a variety ofas double 4options such alarm and double lock forsafer and more reliable monitoring.
Technical Data of ZMJ100PR Density
| Case diameter: | 100mm |
| Scale range: | -0.1 ~ 0.9MPa(customizable) |
| Accuracy: | ±1.0%FS（+20±1℃），±1.8%FS（-20℃～+60℃）（gas） |
| Degree of protection: | IP65 |
| Ambient conditions: | -20℃~ +60℃ realative humidity ≤95% |
| 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: | Pluggable connector, wire diameter 1... 2.5 mm2(1.5mm2 recommended) |
| Insulation resistance: | >100MΩ (DC500V) |
| Power frequency with stand voltage: | 2kV, 50/60Hz, 1min |
| Contact type: | Magnetic snap-action switch (80% Ag, 20% Ni, 10µm gold plated) |
| Impact rating: | 50g(Oil-filled), 30 g(Non-oil-filled) |
| Contact electrical parameters: | 30W/ 50VA，1A. max. 220VDC/ 380V 50/ 60Hz max. |
| Watch glass: | Laminated safety glass |
| Weight: | ≈1.2kg |
| Pressure element: | Bourdon tube |
Main electrical performance indicators and specifications of the remote transmission part
| Operating voltage: | 10~30VDC |
| Power consumption : | <0.5W |
| Communication mode : | RS485 |
| Communication protocol: | Modbus RTU |
Baud rate: | 9600bps |
Anti-electromagnetic interference
| IEC61000-4-2: | level 4 |
| IEC61000-4-3: | level 3 |
| IEC61000-4-4: | level 4 |
| IEC61000-4-5: | level 3 |
| IEC61000-4-6: | level 3 |
| IEC61000-4-8: | level 5 |
Options of ZMJ100PR Density
Withstand voltage: 2.5kV，50/60 Hz 1min
Oil filled or not
Can detect SF6, Air, N2, SF6+N2 and other gases
Communication: 4-20mA(Two wire)
Wider temperature range: optional -40℃ ~ +60℃ or -60℃ ~ +60℃
Optional measurement accuracy：±1.6%FS（+20±1℃），±2.4%FS（-20℃～+60℃）（gas phase）
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