JHJDQ series remote transmission gas density relay
The meter has a Modbus digital signal output port, which supports remote monitoring of gas status, meeting the requirements of smart grids and modern power stations
Medium and high voltage equipment for gases, enclosed gas tanks, SF6 insulated combinators (GIS) and SF6 mixed gas insulated combinators, etc
Monitoring gas type
JHJDQ-100 is suitable for monitoring SF6 gas
JHJDQ100-HQ1 is suitable for monitoring SF6/N2 gas mixtures
project | parameter data | ||
Shell diameter | 100mm | ||
Digital sensing unit measurement parameters | pressure | Range: 0MPa~ 1MPa (absolute pressure), error: ± 0.2% F.S. | |
P20 | Range: 0MPa~ 1MPa, error: ± 0.5% F.S. | ||
temperature | Range: -40 ℃~ + 80 ℃, error: ± 0.5 ℃ | ||
Mechanical sensing unit measurement parameters | fundamental error | Class 1.0, @20 ° C 1.6 grade, @-40 ℃~ + 70 ℃ | |
switching difference | 0.2%-3%F.S. | ||
Consistency between on-site display and remote data | Temperature 20 ℃: ± 1.0% F.S. Other temperatures: ± 1.6% F.S. | ||
working environment | operating temperature | -40℃～+70℃, | |
relative humidity | Resistance ≤ 95%RH resistance | ||
elevation | < 3000 meters | ||
Remote transmission part of the main electrical performance indicators | working voltage | DC 24V | |
power consumption | <2W | ||
mode of communication | RS485 | ||
communication protocol | ModBus RTU | ||
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