Measurement Gauges & Fittings #648592

The model 111 pressure gauges are based on the proven Bourdon tube measuring system. On pressurisation, the deflection of the Bourdon tube, proportional to the incident pressure, is transmitted to the movement via a link and indicated.

Design
EN 837-3

Nominal size in mm
100, 160

Accuracy class
1.6

Scale ranges
0 . 16 mbar to 0 . 250 mbar (flange 160 mm)
0 . 400 mbar to 0 . 25 bar (flange 100 mm)
or all other equivalent vacuum or combined pressure and vacuum ranges

Pressure limitation
Steady: Full scale value
Fluctuating: 0.9 x full scale value

Overpressure safety
5 x full scale value, however max. 40 bar

Permissible temperature
Ambient: -20 . +60 C
Medium: +100 C maximum
Storage: -40 +70 C (scale ranges 60 mbar: -20 . +70 C)

Temperature effect
When the temperature of the measuring system deviates from the reference temperature (+20 C):
max. 0.8 %10 K of full scale value

Ingress protection
IP54 per IECEN 60529
(with liquid filling Model 433.50) IP65)

These differential pressure gauges are made of highly corrosion-resistant stainless steel and feature an all-metal, all-welded media chamber to ensure long-term leak tightness (no elastomer sealing elements).

A high overpressure safety is achieved by the all-metal construction and the close-fitting design of the pressure measuring diaphragm.