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oil pressure gauge Applications: With liquid-filled case for applications with high dynamic pressure pulsations or vibrations For gaseous and liquid aggressive media that are not highly viscous or crystallising, also in aggressive ambience Process industries: chemical/petro-chemical, power stations, mining, on and offshore, environmental technology,machine building and plant construction Nominal size in mm: 63, 100, 160 Accuracy class: YTN63: 1.6 YTN100, 160: 1.0 Scale ranges YTN63: 0 ... 1 to 0 ... 1000 bar YTN100: 0 ... 0.6 to 0 ... 1000 bar YTN160: 0 ... 0.6 to 0 ... 1600 bar or all other equivalent vacuum or combined pressure and vacuum ranges. Pressure limitation YTN63: Steady: 3/4 x full scale value Fluctuating: 2/3 x full scale value Short time: full scale value YTN100, 160: Steady: full scale value Fluctuating: 0.9 x full scale value Short time: 1.3 x full scale value Operating temperature: Ambient: -40 ... +60 °C without liquid filling -20 ... +60 °C gauges with glycerine filling Medium: +200 °C maximum without liquid filling +100 °C maximum with liquid filling Temperature effect: When the temperature of the measuring system deviates from the reference temperature (+20 °C): max. ±0.4 %/10 K of full scale value Ingress protection: IP 65 per Process connection: Stainless steel 316L (YTN 63: 1.4571), lower mount (LM) or lower back mount (LBM) 1) YTN63: G ¼ B (male), 14 mm flats YTN100, 160: G ½ B (male), 22 mm flats Pressure element: Stainless steel 316L, < 100 bar: C-type ≥100 bar: helical type Movement: Stainless steel Dial: Aluminium, white, black lettering,YTN 63 with pointer stop pin Pointer: Aluminium, black Case: Stainless steel, with pressure relief in case top (YTN 63) or in case back (YTN 100 and 160), ranges ≤ 0 ... 16 bar with compensating valve to vent case Window: Laminated safety glass (YTN 63: Polycarbonate) Bezel ring: Cam ring (bayonet type), stainless steel Liquid filling:Glycerine 99.7 % Special versions Gauges for ammonia plants (YTN 100 and 160) With temperature scale for refrigerant R 717 (NH3) in °C, scale ranges: -1 ... 0 ... 15 bar or -1 ... 0 ... 26 bar Options: Other process connection Assembly on diaphragm seals see product review DS Monel pressure system Pressure system stainless steel 1.4571 Surface or panel mounting flange, stainless steel Panel mounting flange, stainless steel, polished Triangular bezel, stainless steel, polished, with clamp Ambient temperature -40 °C: silicon oil filling Switch contacts Pressure gauge with electrical output signal Version per ATEX Ex II 2 GD c. Ordering information: Model / Nominal size / Scale range / Connection size / Connection location / Options.