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Safety Pattern Version Pressure Gauge Applications: The Safety Pattern Version Pressure Gauge with PBTP CASE increased safety requirements With liquid filled case for applications with high dynamic pressure pulsations or vibrations Suitable for corrosive environments and gaseous or liquid media that will not obstruct the pressure system Process industries: chemical/petro-chemical, power stations, mining, on- and offshore, environmental technology,mechanical engineering and plant construction Design: Per US Standard ASME B 40.1 Nominal size: 4 ½" Movement: Stainless steel Dial: Aluminium, white, black lettering, pointer stop pin at 6 oclock Pointer: Adjustable pointer, aluminium, black window: Clear non-splintering plastic (PMMA), retained by internal threaded bezel Case: PBTP, black, with solid baffle wall Solid front safety pattern case with integral baffle wall and blow-out back, Integral surface mounting flange Bezel ring: Slip-on bezel, steel, black Pressure element: Stainless steel 316L < 100 bar: C-type ≥≥ 100 bar: helical type Liquid filling (for model SYTN): Glycerine 99.7 % Accuracy class: Grade 2A per ASME B 40.1(corresponds to indication accuracy 0.5 %) Operating temperature: Ambient: -40 ... +65 °C without liquid filling -20 ... +65 °C gauges with glycerine filling Medium: +100 °C maximum 1) Working pressure: steady: 3/4 of full scale rang fluctuating: 2/3 of full scale range short time: full scale range 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 Pressure limitation: Steady: full scale value Fluctuating: 0.9 x full scale value Short time: 1.3 x full scale value Protection class: IP 54 per(with liquid filling IP 65) 1) Maximum continuous media temperature of 100 °C is recommended. However, higher temperatures can be maintained safely for short term exposure per table see below. The user should consider temperature error and gauge component degradation when exposing gauge to any medium or ambient temperature above 100 °C. For continuous use in either ambient or medium temperatures above 100 °C, a diaphragm seal or other heat dissipating means is recommended. Consult WIKA for technical inquiries and application assistance. Short term, intermittent maximum medium temperature limits (Optional instrument glass window required) 260 °C - without liquid filling ,130 °C - gauges with glycerine filling Process connection: Process connection Stainless steel 304, lower mount (LM) or lower back mount (LBM) ½ NPT (male), 22 mm flats. Options: Other process connections Assembly on diaphragm seals see product review DS Laminated safety glass or instrument glass window Measuring system Cu-alloy Measuring system Monel Alarm contacts ordering information: Model / Nominal size / Scale range / Connection size / Connection location / Options