| Flow Range | 
            Constant flow from 1000 to 5000 ml/min 
            (low flow from 5 to 500 ml/min requires holder) | 
        
        
            Compensation Range 
            (back pressure capability) | 
            5000 ml/min at 20 inches water back pressure 
            4000 ml/min at 30 inches water back pressure 
            3000 ml/min at 40 inches water back pressure 
            2000 ml/min at 50 inches water back pressure 
            1000 ml/min at 50 inches water back pressure | 
        
        
            | Flow Control System | 
            Patented* isothermal, corrects for changes in back pressure, temperature, and atmospheric pressure | 
        
        
            | Power | 
            Removable rechargeable Lithium-ion (Li-Ion) battery, 7.4 V 2.6 Ah, 19.24 Wh or AC using charging cradle | 
        
        
            | Run Time | 
            20 hours at 2000 ml/min† 
            10 hours at 5000 ml/min† 
            Indefinite run from charging cradle | 
        
        
            Charging Time 
            (varies with battery capacity and level of discharge) | 
            Approximately 3 hours | 
        
        
            | Accuracy | 
            Flow control: ± 5% of set-point after calibration to desired flow  
            Atmospheric pressure: ± 0.3 in Hg  
            Temperature: ± 1.0 C | 
        
        
            | Temperature Ranges | 
            Operating: 32 to 104 F (0 to 40 C) 
            Charging: 32 to 113 F (0 to 45 C) 
            Storage: -4 to 113 F (-20 to 45 C) | 
        
        
            | Humidity Ranges | 
            Operating: < 95% RH, non-condensing 
            Storage: < 95% RH, non-condensing | 
        
        
            | Altitude | 
            Corrects flow for changes in temperature (32 to 104 F/ 0 to 40 C) and ambient pressure up to 15,000 feet above and down to 4,500 feet below sea level | 
        
        
            | Display/parameters | 
            
             Color LCD/real-time flow rate, ambient temperature, ambient pressure, accumulated volume, elapsed time 
             | 
        
        
            | User Interface | 
            Resistive touch screen with auto-dim and locking options | 
        
        
            | Sound Level | 
            Average 51.7 dB at 3-ft (1-m) distance using a 37-mm 0.8-µm MCE filter cassette | 
        
        
            | Dimensions | 
            4.1 x 3.7 x 2.8 in (10.4 x 9.4 x 7.1 cm) | 
        
        
            | Weight | 
            19.4 oz (550 gm) | 
        
        
            | Certifications | 
            
            
                - Intrinsic safety: UL class I, Div. 1, Groups A, B, C, and D; Class II, Div 1, Groups E, F, and G; Class III, Div. 1, hazardous locations when used with SKC battery pack model P75718; T-code T3C. Exia; Class I, Zone 0 Gp IIC (SKC Cat. No. 220-5000TC)
 
                - RoHS compliant
 
                - CE Marked
 
             
             | 
        
        
            | Case Material | 
            Polycarbonate with rubberized anti-static overmolding |