Casella CEL Vortex personal sampling pumps - Manual (Page 13)

6. TECHNICAL SPECIFICATIONS
6.1 Common Specifications
Flow Range: 0.5 to 3.5 litres/min.
Flow Control Accuracy: ±5% for selected flow.
Max Pressure Drop: 40 cm H 2 O at 2 litres/min,
15cm H 2 O at 3.5 litres/min.
Nominal Battery Voltage: 4.8 volt.
Nominal Battery Capacity: 1.2 Ah.
Run Time: In excess of 8 hours.
Operating Temperature: 0 to +40 o C.
Dimensions: 120 mm x 74 mm x 50 mm.
Weight: 500 g.
6.2 Common Additional Features
¤ Low battery shut down.
¤ Compact size to cause no significant handicap for the wearer.
¤ Low battery indication Visual and audible.
¤ Automatic flow fault shut down (due to excessive pressure drops or
blockages).
¤ Digital flow adjustment.
6.3 Timer 2 Additional Features
¤ Six digit elapsed time timer with 1 minute resolution.
Specifications
Page 13 of 16
VORTEX Standard 2 & VORTEX Timer 2
PERSONAL SAMPLING PUMPS Handbook