XFR series rotameter technical parameters 
 ◆ Measuring range: water (20 ° C) :1-200000I / h; air (20 ° C, 0.1.13Mpa); 0.03 ~ 4000m3 / h 
 ◆ Range: Standard: 10:1; special type: 20:1; 
 ◆ Accuracy: Standard: 1.5; special type: 1.0; 
 ◆ pressure rating: 
 Standard: DN 15-of DN50 4.0Mpa; DN80-of DN200 1.6Mpa; 
 Special type: DN15-DN50 the 25Mpa DN80-of DN200 16Mpa 
 ◆ pressure loss at: 7Kpa ~ 70Kpa; 
 ◆ medium temperature: Standard: -40 ° C to 100 ° C; high temperature: 100 ℃ ~ 450 ℃; 
 ◆ medium viscosity: 
 DN15: n <5mPa.s (F15.1-F15.3) n <30mPa.s (F15.4-F15.8); 
 DN25: n <30mPa.s; 
 ◆ Ambient temperature: Far EasTone type: 40 ℃ ~ 185 ℃ -30 ℃ ~ 80 ℃ (liquid crystal is not damaged) LCD work properly 
 ◆ connection forms: Standard: DN201 standard flange; special type: any standard flange or thread specified by the user; 
 ◆ cable interface: flameproof 1/2NPT internal thread M20 `1.5" internal thread; 
 ◆ Power Supply: 
 Standard: 24VDC two-wire 4-20mA (12VCD-32VCD; 
 Type of alarm: 24VDC 3-wire 4-20mA (18VCD-28VCD; 
 AC type :85-265VCD 50Hz; 
 Battery type: 3.6V, 7.5AH Lithium battery, can be used continuously for three years; 
 ◆ load characteristics: 
 Two-wire system: Rlmax = 50? (-12) = 600 @ 24V; 
 Alarm type: the maximum load resistance of 200, AC: The maximum load resistance of 200; 
 ◆ Alarm output: upper or lower limit of the instantaneous flow alarm; switch alarm; relay output; 
 ◆ LCD: instantaneous flow value range :0-50000 (with a decimal point) 
 ◆ Protection grade: IP65.