Introduction glass rotameter LZB glass corrosion type flowmeter is mainly used for corrosive liquids, gas detection medium traffic, such as strong acids (except hydrofluoric acid), alkalis, oxidizing agents, strong oxidizing acids, organic solvents and other corrosive gas or liquid flow medium is detected. Common type: mainly suitable for measuring decay-type non-corrosive media: mainly used in the measurement of corrosive media. All stainless steel type: mainly used in sanitary and weak corrosive media measurement, resistant to the corrosive gas environment. Stainless steel corrosion-resistant type: mainly used in corrosive media measurement, resistant to the corrosive gas environment. Glass rotameter technical parameters Measuring range water (20 ℃) ??5 ~ 200000 l / h of air (0.1013MPa 20 ℃) ??0.03 ~ 4000 m / h turndown ratio of 10: 1 (a special type of 20: 1) accuracy class 1.5 (special Type 1.0) Working pressure DN15 ~ DN50 PN4.0MPa (a special type of 25MPa) DN 80 ~ DN100 PN1.6MPa (a special type of 16MPa) pressure rating jacket: 1.6MPa standard medium temperature -80 ℃ ~ + 220 ℃ high temperature 300 ℃ PTFE lining type ≤85 ℃ ambient temperature of 40 ℃ ~ + 120 ℃ (electric remote type ≤65 ℃) medium viscosity DN15: ≤5mPa.s (H15.1 ~ H15.3) ≤30mPa.s (H15.4 ~ H15 .9) DN25: ≤250mPa.s DN50 ~ DN150: ≤300mPa.s LCD display instantaneous flow value range: 0 to 50000 totalizer display Value range: 0 to 99999999 standard output signal: 4 ~ 20mA wire pulse signal: Minimum 50ms interval alarm: alarm relay contact capacity 1A @ 30VDC, 0.5A @ 125VAC or 0.25A@250VAC Power Standard: 24VDC (10.8VDC ~ 36VDC) AC type: 220VAC (85 ~ 265VAC) Battery type: 3.6@5.2 AH lithium Connection Standard: DIN2501 threaded connection type: DIN11851 or user-specified electrical interface M20 × 1.5, PG11,1 / 2 "NPT standard overall height: 250mm (vertical installation)