G.2.8 ∆P2 - TESTO 335 Instruction Manual

Option:
To print the reading:
4 Accept the reading:
- The
Measurements
G.2.8 ∆p2
The ∆ ∆ p2 function is only available on instruments with the "Pressure/flow speed meas-
urement" option.
Do not measure for longer than 5 min, as the drift of the pressure sensor means that
the readings could be outside the tolerance limits.
When measuring the gas flow pressure of gas heaters:
Dangerous mixture of gases
Danger o o f e e xplosion!
Make sure there are no leaks between the sampling point and the
measuring instrument.
Do not smoke or use naked flames during measurement.
Calling up a function:
Measurements
Measuring:
1 Start measuring:
- Pressure zeroing (5 s).
2 Position the Pitot tube in the duct.
3 Stop measuring
- The reading is recorded.
Option:
To print the reading:
4 Accept the reading:
- The
Measurements
.
Print
.
OK
menu is opened.
∆ ∆ p2
OK
.
Start
.
Stop
.
Print
.
OK
menu is opened.
.
OK
G. Measuring
G.2 Measurements
43