Description
Capsule pressure gauge WIKA model 632.50
Capsule pressure gauge WIKA model 632.50 is designed for measuring mbar range in industrial process.
Capsule element pressure gauges are used to measure air and dry gases at low pressures. They cover measuring spans from 2.5 mbar to 600 mbar.
The measuring element consists of two metal diaphragms soldered together to form a cylindrical bellows chamber.
This capsule element expands when the pressure inside the element is higher than the external pressure, and it contracts when the internal pressure is lower.
This motion is proportional to the pressure to be measured, and it is coupled to the pointer mechanism.
Design
EN 837-3
Nominal size in mm
63, 100, 160
Accuracy class
class 1.6
Scale ranges
- NS 63: 0 … 40 mbar to 0 … 600 mbar
- NS 100: 0 … 16 mbar to 0 … 600 mbar
- NS 160: 0 … 2.5 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
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 for model 632.50 (without liquid filling)
- IP65 for model 633.50 (with liquid filling)
Process connection
Stainless steel 316L
Lower mount (LM) or lower back mount (LBM) 1)
NS 63: G ¼ B (male), SW 14
NS 100, 160: G ½ B (male), SW 22
Pressure element
Stainless steel 316L
Sealing
FPM/FKM
Movement
Stainless steel
Zero adjustment
At the front
Dial
Aluminium, white, black lettering
Pointer
Aluminium, black
Case
Stainless steel
Window
Laminated safety glass
(with liquid filling: Clear non-splintering plastic)
Ring
Bayonet ring, stainless steel
Filling liquid
Glycerine
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