Performing The Measurement - TESTO 327 Instruction Manual

14 Using the product
A A c c t t i i v v a a t t i i n n g g m m e e a a s s u u r r i i n n g g f f u u n n c c t t i i o o n n : :
Press .
1 1
Select M M e e a a s s u u r r e e using /
2 2
Select the required measuring function using
3 3
the O O K K function key.
F F u u n n c c t t i i o o n n s s
1 1 . . F F l l u u e e g g a a s s : flue gas measurement with flue gas probe and central measurement menu for
displaying/printing out all readings obtained from the various measuring functions.
2 2 . . L L e e t t b b y y : timed measurement of differential pressure with differential pressure set
(accessory).
3 3 . . t t i i g g h h t t n n e e s s s s : timed measurement of differential pressure with differential pressure set
(accessory).
4 4 . . D D r r a a u u g g h h t t : flue draught measurement with flue gas probe and differential pressure
measurement with gas pressure set (accessory).
5 5 . . S S m m o o k k e e / / O O i i l l d d : enter smoke number/oil derivative (only available if a liquid fuel has been
activated).
6 6 . . H H C C T T : enter the heat carrier temperature.
7 7 . . D D i i f f f f - - p p r r e e s s s s : measurement of differential pressure with differential pressure set (accessory).
8 8 . . D D i i f f f f - - t t e e m m p p : measurement of differential temperature with differential temperature set
(accessory).
9 9 . . A A m m b b i i e e n n t t C C O O : timed measurement of ambient CO with flue gas probe.
F F l l u u e e g g a a s s function: When the measuring cells are first called up after the
measuring instrument is switched on, they are zeroed (length of time: 30 s).
Exception: the A A m m b b i i e e n n t t C C O O function has already been started.
During the zeroing phase, the fuel can be selected. Any connected probe
must be in the open air during the zeroing phase!

Performing the measurement

M M e e a a s s u u r r i i n n g g : :
The steps described in the chapter Preparing for measurement have
been completed.
L L e e t t b b y y and t t i i g g h h t t n n e e s s s s function: The Diff Press Kit (0554 1203) must be
connected.
W W a a r r n n i i n n g g ! ! Risk of explosion due to dangerous mixture of gases!
Make sure there are no leaks between the sampling point and
the measuring instrument.
Do not smoke or use naked flames during measurement.
D D r r a a u u g g h h t t function: The pressure sensors are zeroed when the D D r r a a u u g g h h t t
function is started (length of time: 5 s). The measuring instrument must
and confirm entry with the O O K K function key.
/ and confirm entry with
not be pressurised during zeroing!
To help position the flue gas probe in the centre of the flow (area of the
highest flue gas temperature), the flue gas temperature measured is
shown graphically.
Do not measure for longer than 5 minutes, as the readings may fall
outside of the tolerances due to a possible drift of the pressure sensor.
S S m m o o k k e e / / O O i i l l d d function: Only available if a liquid fuel has been activated.
D D i i f f f f - - t t e e m m p p . . function: The differential temperature set (0554 1208)
must be connected. The ambient air sensor must be unplugged (located
bottom left of unit) before connecting the T1 sensor. Be aware that the
connector is a firm fit, when disconnecting.
The differential temperature is calculated from T1 - T2.
D D i i f f f f - - p p r r e e s s s s function: The gas pressure set (0554 1203) must be connected.
The pressure sensors are zeroed when the D D i i f f f f . . - - p p r r e e s s s s function is started
(length of time: 5 s). The measuring instrument must not be pressurised
during zeroing!
Do not measure for longer than 5 min, as a drift of the pressure sensor
may result in readings outside the tolerance limits.
A A m m b b i i e e n n t t C C O O : When the measuring cells are first started after the
measuring instrument is switched on, they are zeroed (length of time: 30
s). Exception: The F F l l u u e e g g a a s s function has already been called up.
Any connected probe must be in the open air during the zeroing phase!
The measurement values from the functions D D r r a a u u g g h h t t , , D D i i f f f f . . - - t t e e m m p p . . ,
D D i i f f f f . . - - p p r r e e s s s s and S S m m o o k k e e / / O O i i l l d d are transferred to the the central measurement
menu F F l l u u e e g g a a s s and must therefore be carried out before the flue gas
measurement.
F F l l u u e e g g a a s s function:
Start the measurement with the S S t t a a r r t t function key.
1 1
- The current readings are displayed.
Ensure flue is at normal operating temperature and the readings are steady,
before accepting flue gas measurements.
Stop the measurement with the S S t t o o p p function key.
2 2
L L e e t t b b y y and t t i i g g h h t t n n e e s s s s function:
- The time value is blinking.
Set measuring time (from 1 to 15 minutes) using
1 1
the S S t t a a r r t t function key.
- The message Z Z e e r r o o i i n n g g w w i i t t h h o o u u t t o o p p e e r r a a t t i i n n g g p p r r e e s s s s u u r r e e is displayed.
- After zeroing, the message A A t t t t a a c c h h t t o o t t h h e e s s y y s s t t e e m m a a n n d d s s t t a a r r t t is displayed.
Using the product 15
/ and confirm with