TESTO 6446 Instruction Manual page 11

Sensor output 1
• Switch signal as the limit value for volume flow or flow velocity, hysteresis or
window function as N/O or N/C contact.
• Quantity monitoring using the preset counter.
Sensor output 2
• Switch signal as the limit value for volume flow, flow velocity or
temperature, hysteresis or window function as N/O or N/C contact.
• Analogue signal (4-20 mA) for volume flow, flow velocity or temperature.
Relative measuring range (%)
Measuring range
0.33% (0.4%) - 100%
The absolute measuring range depends on the nominal width (see
following table).
Absolute measuring range
The compressed air meter may be used to measure the
volume flow of working compressed air with up to 16 bar
(DN 65 to DN 200) or 14 bar (DN 250) overpressure.
WARNING
Nominal width
DN 65
DN 80
DN 100
DN 125
Recording/
display range
0% to 120%
Measuring range
6.7-2,000 m³/h
9.2-2,750 m³/h
15-4,400 m³/h
23-7,000 m³/h
Recording/
display range
0.11-2,400 m³/h
0.15-3,300 m³/h
0.24-5,280 m³/h
0.39-8,400 m³/h
11