➢ Go to "Type" line then press OK.
➢ Press OK on “Diameter” line.
➢ Select the required dimension with up and down arrows then press OK.
➢ If necessary, modify the diameter with arrows then press OK (if no modification, just press OK).
Set surface unit:
➢ Go to "Surface" then press OK.
➢ Go to "Type" line then press OK.
➢ Press OK on “Unit” line.
➢ Select the unit (mm or in) with arrows then press OK.
Set K factor:
The air flow in a ventilation opening, Qv (m³/h), can be evaluated from a differential pressure measurement on this
ventilation opening, ΔP (Pa). The K factor is a coefficient used to measure the volumetric flow rate on an air vent. This
coefficient is given in the technical features of the air vent.
If the coefficient is not specified in the air vent technical document or directly on the air vent, please request
the manufacturer to know this coefficient.
From the air vent coefficient, named K, it is possible to calculate the volumetric flow rate:
➢ Go to "Surface" then press OK.
➢ Go to "K factor" line then press OK.
➢ Select the K factor with up and down arrows then press OK.
➢ If necessary, modify the value of K factor with arrows then press OK (if no modification, just press OK).
➢ Press Esc to quit "Surface" sub-menu and back to "Configuration" menu.
5.2.3. Set measurement units
➢ Go to "Units" line then press OK.
➢ Go to the required line (airflow, air velocity, pressure or temperature) then press OK.
Available units are:
• Airflow: m
3
/h, L/s, cfm
• Air velocity: m/s, fpm, km/h, mph
• Pressure: Pa, mmH
2
O, mmHg, inWg
• Temperature: °C, °F
➢ Press Esc to quit "Units" sub-menu and back "Configuration" menu.
5.2.4. Set a damping
➢ Go to "Damping" line then press OK.
➢ Select the required coefficient (from 0 to 9) then press OK.
5.2.5. Activate or deactivate the solenoid valve
➢ Go to "Solenoid valve" line then press OK.
➢ Select ON or OFF with up and down arrows then press OK.
5.2.6. Set the thermocouple type
➢ Go to "Thermocouple" line then press OK.
➢ Select thermocouple type: K, J, T or S with up and down arrows then press OK.
Using DBM610 in micromanometer mode 15