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ZMJ60V Density Monitor

ZMJ60V Density Monitors are used to monitor the den- sity of SF₆ gas in sealed tanks, and can be widely used in medium voltage switchgear, RMU. It’s suitable for out- door harsh conditions.
It can provide multiple solutions to support new sub- stations and the renovation and upgrading of existing substations.
The electrical maintenance personnel can make SF₆ gas density monitor calibration or gas filling without disas- sembling SF₆ density monitor.

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SF₆ Gas Insulated RMU
SF₆ Gas Insulated Switchgear

Compact design, customized installation interface, convenient and reliable.
Process connection customizable in accordance with customer’s demands.
Up to three sets of switching contacts can be pro- vided according to user’s needs.
Without disassembling SF6 density monitor, SF6 gas density monitor can be calibrated or replaced.
Without disassembling the screws, a person can operate independently, which is convenient
Temperature compensation for higher accuracy.
It can facilitate on-site personnel to measure mi- cro-water and supplement air for switch.
Avoid the sealing surface and sealing joint damage caused by the disassembling.

Technical Parameters
Case diameter	Φ64mm
Case material	Stainless steel
Scale range	0 to 2bar abs.（customizable）
Accuracy	±1.5%FS（+20℃ ±1℃) ±2.5%FS（-20℃~ +60℃) (gas phase)
Ambient conditions	-20° C to 60° C, relative humidity ≤ 95%RH
Degree of protection	IP65
Leakage rate	≤ 1 × 10-9 Pa·m3/s (Helium leakage inspection)
Contact type	Magnetic snap-action contacts (up to 3 sets, NO or NC)
Process connection	M20×1.5 (customizable)
Maintenance connection	M16×1.5 (customized and additional adapter needed to the calibrator or gas tank)
Installation method	Radial or Axial
Insulation properties	Insulation resistance: >100 MΩ (500 V DC) Withstand voltage: 2kV, 50/60 Hz 1 min
Contact electrical parameters	Rated Power: 30VA
Max. operating voltage	380V
Max. current	1A
Weight	≈ 0.6kg
Pressure element	Bourdon tubes

Different measuring ranges
Wide temperature range：-40° C to +60° C
Measuring Medium：SF₆ , Air, N₂, SF₆+N₂ and other gases
Remote transmission function
Optional measurement accuracy：±1.0%FS（+20± 1℃) , ±2.5%FS（-20℃~ +60℃)（gas phase）