ĐỒNG HỒ ĐO ÁP SUẤT WIKA 612.20

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
+ 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 per IEC/EN 60529
IP54
Process connection
Copper alloy
Lower mount (radial) or lower back mount 1)
NS 63: G ¼ B (male), SW 14
NS 100, 160: G ½ B (male), SW 22
Pressure element
Copper alloy
Sealing
NBR
Movement
Copper alloy
Zero point setting
In front
Dial
Aluminium, white, black lettering
Pointer
Aluminium, black

Case
Stainless steel
Window
Instrument glass
Ring
Bayonet ring, stainless steel
Options
Other process connection
Overload or vacuum safety with
scale ranges < 40 mbar: 3 x full scale value
scale ranges ≥ 40 mbar: 10 x full scale value
NS 100 and 160: Panel or surface mounting flange
NS 100 and 160: Triangular profile ring with clamp
NS 100 and 160: Ingress protection IP65