WIKA 612.20 膜盒式压力表 工业型 表圆直径63 100 160 EN837-3
Capsule pressure gauge
Model 612.20, industrial series
Capsule pressure gauge model 612.20
Applications
■ Robust design and ingress protection IP 54
■ For gaseous, dry and non-aggressive media
■ Medical, vacuum, environmental, laboratory technology, for contents measurement and filter monitoring
Special features
■ Zero adjustment in front
■ Case from stainless steel
■ Special connection location on request
■ Low scale ranges from 0 ... 6 mbar
Description
Design
EN 837-3
Nominal size in mm
63, 100, 160
Accuracy class
1.6
Scale ranges
NS 63: 0 ... 25 mbar to 0 ... 600 mbar
NS 100: 0 ... 10 mbar to 0 ... 600 mbar
NS 160: 0 ... 6 mbar to 0 ... 600 mbar
or all other equivalent vacuum or combined pressure and vacuum ranges
Pressure limitation
Steady: Full scale value
Fluctuating: 0.9 x full scale value
Permissible temperature
Ambient: -20 … +60 °C
Medium: +100 °C maximum
+ 80 °C maximum (with NS 100 and 160 back mount)
Temperature effect
When the temperature of the measuring system deviates from the reference temperature (+20 °C): Max. ±0.6 %/10 K of full scale value
Ingress protection
IP 54 per EN 60529 / lEC 529
Standard version
Process connection
Cu-alloy,
Lower mount (LM) or lower back mount (LBM) 1)
NS 63: G ¼ B (male), 14 mm flats
NS 100, 160: G ½ B (male), 22 mm flats
Pressure element
Cu-alloy
Seal
NBR
Movement
Cu-alloy
Zero adjustment
In front
Dial
Aluminium, white, black lettering
Pointer
Aluminium, black
Case
Stainless steel
Window
Instrument glass
Bezel ring
Cam ring (bayonet type), stainless steel
Options
■ Other process connection
■ Overpressure and vacuum safety with
scale ranges > 25 mbar: 10 x full scale value
scale ranges ≤ 25 mbar: 3 x full scale value
■ NS 100 and 160: Panel or surface mounting flange
■ NS 100 and 160: Triangular bezel with clamp
■ NS 100 and 160: Ingress protection IP 65
■ Switch contacts model 831 (data sheet AC 08.01)
Dimensions in mm
Standard version
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