◆ Density monitoring system ◆
● Model : P580
● Service intended :
P580 series are designed to monitor the gas density of closed SF6 tank (for switchgear). It is capable of the measuring real time status of SF6 gas density. These series are equipped with the relay contact which has the three configurable independent units to sense and measure the instantaneous pressure rise.
● Display : Analog indicator, operation and alarm ststus LED
● Accuracy :
- ±1.0% at ambient temperature +20°C (Indicator)
- ±2.5% at ambient temperature -20°C / +60°C (Indicator)
- ±0.25% at ambient temperature 0°C ~ +50°C (Current output)
● Scale range : - -0.1 ~ 0.1 MPa to -0.1 ~ 1.2 MPa
● Working temperature :
- Ambient : -20 ~ 65 °C (Gas phase)
- Storage : -50 ~ 60°C maximum
● System configuration : HART communication
● Degree of protection : EN60529/IEC529/IP67
● Pressure connection : Stainless steel (316SS)
● Element : Stainless steel (316SS) , C-type bourdon tube
● Case and cover :
- Stainless steel (304SS)
- Bayonet type
● Window : Safety glass
● Movement :
- Stainless steel (304SS)
- Bimetal link (Temperature compensation)
● Pointer : Black painted aluminium alloy
● Process connection : G½"
● Helium leak rate : Tested to confirm leakage rates of less than 10 mbar L/sec
● Input power and current consumption : 12 ~ 36 V DC input, Max. 60 mA@DC 24 V
● Display : Operating and alarm status LED
● Parameter input : HART configurator
● Output :
- Current output (4 ~ 20 mA, DC)
- One instantaneous pressure rising alarm relay
- Three pressure limit alarm relay
● Relay contact rate :
- Contact resistance : Max. 70MΩ
- Contact rating : 2 A 30 VDC, 0.5 A 125 DC (Res.load)
- Max switching voltage : 220 VDC / 250 VAC
- Max switching power : 60 W / 62.5 VA
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