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SF6 Gas density relay Magnetically assisted electrical contact pointer relay SF6
Diameter of watch circle :100
Calibration pressure PE: subject to customer specifications
Accuracy Specifications:
■ ± 1% at +20 °C ambient temperature
■-20... ±2.5 % at +60 °C ambient temperature, the calibration pressure is consistent with the reference isovolume line (Reference Figure KALI-Chemie AG, Hanover, D? ring, Ph.D., 1979)
Scale range:
Range 0.16... 2.5 MPa vacuum and overpressure range (20 °C ambient temperature and gas phase)
Allowable ambient temperature:
Working: -20 +60 °C (-4 +140 °F), gas phase
Storage: -50 +60 °C (-58 +140 °F)
Process connection:
G ? B (according to EN 837), radial direct mounting stainless steel, wrench opposite side width 22 mm
Other connection methods or locations can be provided according to customer requirements.
Pressure element:
Stainless steel, welded
Air tightness: leakage rate ≤ 1? 10-9 kPa ? l / s
Test method: helium mass spectrometry test
Movement: stainless steel, bimetallic sheet (temperature compensation)
Dial: Aluminum
Shell:
Stainless steel, gas filled type
Stainless steel, liquid filling type
Air tightness: leakage rate ≤ 1? 10-6 kPa ? l / s
Table glass:
Laminated safety glass
Transparent crack resistant plastic
Ring of cover:
Bayonet ring, stainless steel, secured by 3 solder joints
Allowable humidity:
≤ 90% r. h. (non-condensing)
Protection level:
IP 65, according to EN 60529 / IEC 529 standard
Weight:
Gas filled type: about 0.8 kg
Liquid filled type: about 1.2 kg
100% high voltage test:
2 kV, 50 Hz, 1s
Switch contact:
Electrical connection
Electrical junction box cable with M20 x 1.5 locking sleeve cross-sectional area 2.5mm2
Number of switch contacts:
1 magnetically assisted electrical contact
2 magnetically assisted electrical contacts
3 magnetically assisted electrical contacts
Switch direction:
Pressure of descent
Pressure of rise
Switch function:
Open at regular intervals
Normally closed
Switching contact (2 more switching points)
Circuit:
Electrical connection (not applicable to conversion contact)
Electrical isolation
Switch accuracy:
Switch point = calibration pressure PE: see accuracy specification
Switching point ≠ calibration pressure PE: Translate to calibration pressure
Switching voltage:
AC 250 V
Switching power
Gas filled type: 30 W / 50 VA, 1 A
Liquid filling type: 20 W / 20 VA, 1 A
Switching point material :80 % Ag / 20 % Ni, gold plated
Calibration standard for gas density relays
SF6 gas relay and density relay
The difference between density relay and pressure gauge
sf6 gas density relay calibration record report
wika sf6 gas density relay
The density relay indicates the pressure value of sf6 gas
Density relay alarm pressure value
Density relay rated pressure
sf6 gas density relay function
What requirements should be met for gas density relays for switchgear
Calibration standard for gas density relays
Gas relay and density relay
The difference between density relay and pressure gauge
sf6 gas density relay calibration record report
wika sf6 gas density relay
The density relay indicates the pressure value of sf6 gas
Density relay alarm pressure value
Density relay rated pressure
sf6 gas density relay function
What requirements should be met for gas density relays for switchgear
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