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SF6 Gas Density Monitor Type A60 with Adjustable Contacts
The gas density monitor is used where a specific density is needed to make a “stand alone” sealed system function according to the performance of the system.
During installation and filling of the system the temperature of the gas and the instrument should be almost equal.
Practical use of the monitor:
Sealed pressurised casings for high voltage switchgear, high power transformers and submerge power and telecommunication cables filled with gas i.e. SF6-gas.
SF6 Gas Density Monitor Type A60 with Adjustable Contacts
SPECIFICATIONS
Modified pressure gauge with Bourdon tube,
Build-in temperature compensation.
Accuracy: ± 1 % at 20 °C
Filling and working pressure as specified by
order.
STANDARD VERSION:
Nominal diameter: 100 mm gauge housing
Wetted parts : Cu-alloy
Contact system: Magnetic snap-action, ajustable.
Max. 3 alarm contacts. Mutual common or optinal separate circuits.
Contact material: Silfram W3O
Contact rating: 30W DC / 50 VA AC
Contact breaking: max 1 Amp.
Electrical connection:Terminal box at the side of housing
Cable gland M 20×1,5
Exterior cable diameter: 7 – 13 mm Traction-relief
Screw terminals acc. 1,5 mm2
Protection class: IP65
Presssure connection: ½” BSP
Bottom or back entry.
Pressure element: C-shape Bourdon tube
Burst pressure: 10 x nominal pressure
Leak tested: Helium, rate< 10-9 l/ sec Movement: Bimetal link Bearings in nickel silver Movements in Cu-alloys Housing: AISI 304 Glass: Polycarbonate Dial: Aluminum, graduation, numerals and colored sectors to specified by order. Filling: Dry or Polybutene’
RANGE
-1 to 25 (60) bar, to be specified by order
± 2,5 % at –20 °C and 60 °C
Bar or Kg/cm2 as per order
ENVIRONMENTAL CONDITIONS:
Operating temperature:
-20 °C to 70°C
Storage temperature:
-30°C to 85 °C
Overall protection class:
IP 65
Calibrated within
-20 °C to 60 °C
QUESTIONS
Standard articles
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Single contact
(1 contact point)
Avaliable contact types:
KN,KM,KE and KI
Contact Function : Break
1
Contact Function : Close
2
Contact Function : Shift
3
Contact Function Separate Circuits : Break
4
Contact Function Separate Circuits : Close
5
Double contact
(2 contact points)
Avaliable contact types:
KN,KM,KE and KI
Shift contact
(2 contact points switch function)
Avaliable contact types:
KN and KM
Double contact
(2 contact pointers seperate Circuits)
Avaliable contact types:
KN and KM
Triple contact
(3 contact pointers)
Avaliable contact types:
KN and KM
Triple contact
(3 contact pointers)
Avaliable contact types:
KN and KM
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