DESCRIPTION
The model 113.13 is a liquid-filled pressure gauge with plastic case. The liquid filling causes damping of the internal components and constributes to an increased vibration resistance and shock reristance. The pressure gauges are suitable for installation in machines and plants where vibrations and shocks are expected.
These pressure gauges are based on the proven Bourdon tube measuring system. The deflection of the Bourdon tube is transmitted to a movement and indicated.
The plastic case and window are welded together and an O-ring seal seals the process connection at the case. In this way the instrument fulfils the high requirements for IP65 ingress protection. With accuracy class 2.5 and the available nominal sizes 40,50, and 63, this model is suited for a wide range of applications in industru. The mounting bracket, which is available as an option, enables the panel mounting of pressure gauges with back mount process connection. The nominal size 63 mm version with back mount process connection is alternatively offered with a mounting flange on the front of the instrument. This mounting flange is used, when, for example, panel mounting is only possible from the front.
APPLICATION
- For measuring points with high dynamic pressure loads and vibrations
- For gaseous and liquid media that are not highly viscous or cristallising and will not attack copper alloy parts
- Hydraulics
- Compressors
SPECIAL FEATURES
- Vibration and shock-resitant
- Design per EN 837-1
- Scale ranges up to 0…400 bar
SPECIFICATION
Version
EN 837-1
Nominal size in mm
40, 50, 63
Accuracy class
2.5
Scale ranges
0 … 1.6 to 0 … 400 bar
or all other equivalent vacuum or combined pressure and
vacuum ranges
Pressure limitation
Steady: 3/4 x full scale value
Fluctuating: 2/3 x full scale value
Short time: Full scale value
Permissible temperature
Ambient: -20 … +60 °C
Medium: +60 °C maximum
Temperature effect
When the temperature of the measuring system deviates
from the reference temperature (+20 °C): max. ±0.4 %/10 K of the span
Process connection
Copper alloy,
Lower mount (radial) or centre back mount,
NS 40: Centre back mount, G ⅛ B (male), SW 14
NS 50, 63: G ¼ B (male), SW 14
Pressure element
Copper alloy
Movement
Copper alloy
Dial
Plastic, white, black lettering, with pointer stop pin
Pointer
Plastic, black