HYDAC ELECTRONIC HFS 2500, Руководство по эксплуатации, Страница: 30 / 40

Flow switch HFS 2500 with ATEX approval Page 10
Status 2020/05/19 HYDAC ELECTRONIC GMBH Mat. No.: 669884
7 Technical Details
Input data
Switching ranges [l/min] 5% accuracy 10% accuracy
Size 2 Size 3
0.2 .. 4.0 8 .. 90 0.02 .. 0.2 10 .. 30
0.6 .. 5.0 5 .. 110 0.2 .. 0.6 15 .. 45
0.5 .. 8.0 10 .. 150 0.4 .. 1.8 20 .. 60
1 .. 14 35 .. 220 0.8 .. 3.2 30 .. 90
1 .. 28 35 .. 250 2 .. 7 60 .. 150
2 .. 40 3 .. 13
4 .. 55 4 .. 20
1 .. 70 8 .. 30
Operating pressure
Brass version
Stainless steel version
200 bar
300 bar
300 bar
350 bar
250 bar
300 bar
Pressure drop [bar] 0.02 .. 0.8 0.02 .. 0.3 0.02 .. 0.4
Mechanical connection See dimensions
Wetted components
Brass version
Stainless steel version
Stainless steel 1.4571; NBR
1)
; Ms nickel-plated; Ms; hard ferrite
Stainless steel 1.4571; FKM
1)
; hard ferrite
Output data
Switching outputs 1 or 2 reed contacts
Change-over or normally open type
2)
Accuracy ≤ ± 5 % FS or ≤ ± 10 % FS
Repeatability 2 % FS max.
Switching capacity
Change-over contact (SEM-A): max. 250 V / 1 A / 30 W
Pre-fuse 1 A (outside hazardous area)
Normally open contact (SEM-E): max. 250 V / 2 A / 60 W
Pre-fuse 2 A (outside hazardous area)
Ambient conditions
Operating temperature range T6 / T80 °C: -20 .. +75 °C
T5 / T100 °C: -20 .. +90 °C
Fluid temperature range
T6 / T80 °C: -20 .. +75 °C
T5 / T100 °C: -20 .. +90 °C
Max. surface temperature T6 / T80 °C: +75 °C
T5 / T100 °C: +90 °C
- marked Directive 2014 / 35 / EU
Directive 2014 / 30 / EU
Directive 2014 / 34 / EU
EN 60079-0:2018 / EN 60079-18:2015 + A1:2017 /
EN 60079-31:2014
Protection class to DIN 40050 IP 67
Other data
Housing material Brass (nickel-plated) or stainless steel 1.4571
Electrical connection Flying leads (2 m cable length)
Notes.:
FS ( F ull S cale) = relative to the entire measurement range
1)
Other seal materials on request
2)
The contact opens / switches when the flow falls below the switching point.