TESTO 300 XXL Instruction Manual

testo 300 XXL

Instruction manual

en

3

Contents

Page

Contents..........................................................................................................................3

Preface ............................................................................................................................7

Principal safety information ..............................................................................................8

System description 9

Control unit ..............................................................................................................9

Device operation ....................................................................................................10

Touchscreen (option) ..............................................................................................11

Overview of the measuring system..........................................................................12

Menu overview 14

Control unit with analyser box..........................................................................14

Control unit......................................................................................................15

Commissioning ..............................................................................................................16

Function menu and function bar..............................................................................16

Status display of the LED (analyser box)..................................................................17

Power supply ..........................................................................................................18

Power supply, analyser box/control unit ..........................................................18

Mains operation ......................................................................................18

Rechargeable battery operation ..............................................................18

Power supply, control unit................................................................................18

Mains operation ......................................................................................18

Rechargeable battery operation with battery pack ..................................18

Battery operation ....................................................................................18

Rechargeable battery operation with standard batteries..........................18

Charging batteries ..................................................................................................19

Charging batteries, analyser box/control unit ..................................................19

Charging battery pack, control unit..................................................................19

Example measurement ..................................................................................................20

Correct use of the flue gas probe............................................................................20

Preparing for measurements with the control unit and analyser box........................21

Core current search with the control unit and analyser box ....................................22

Flue gas measurement at burners with control unit and analyser box ....................23

Conducting a CO measurement in gas burners

with the control unit and the analyser box ..............................................................24

Draught measurement with the control unit and analyser box ................................25

In compliance with the conformity certificate, the units fulfil the guidelines of
DIN EN 61010-1 safety regulations for electrical devices, control, regulating

and laboratory equipment of guideline 73/23/EEC.

In compliance with the conformity certificate, the unit fulfils the guidelines of

2004/108/EEC.

Page

Differential pressure measurement with the control unit ..........................................26

Differential pressure measurement with the control unit ..........................................27

CO measurement with the control unit ....................................................................28

Gas leak probe with control unit..............................................................................29

Humidity measurement with the control unit............................................................30

Velocity measurement with the control unit..............................................................31

Volume measurement in a duct ......................................................................32

Mean value ......................................................................................................33

Volume flow measurement ..............................................................................34

Velocity measurement with the pitot tube ........................................................35

CO

2

measurement with the control unit ..................................................................36

Current/voltage measurement with the control unit ................................................37

Printing ..........................................................................................................................38

Printing the measurement results ............................................................................38

Main menu Memory (analyser box and control unit) ......................................................39

Overview ................................................................................................................39

Saving without selecting a location..........................................................................40

Creating a new location ..........................................................................................41

Selecting saved location..........................................................................................42

Using an existing location as format for a new location ..........................................43

Changing existing location ......................................................................................44

Deleting existing location ........................................................................................45

Barcode pen overview ............................................................................................46

Reading a location with the barcode pen ................................................................47

Reading a location from the measurement menu ....................................................47

Reading several locations with barcode pen from the measurement menu ............47

Displaying saved readings ......................................................................................48

Mean calculation ....................................................................................................49

Printing mean calculation result ..............................................................................50

Deleting entire memory............................................................................................51

Printing saved readings of a location ......................................................................52

Free memory? ........................................................................................................53

Main menu Probe for control unit ..................................................................................54

Scaling ....................................................................................................................54

Resetting ................................................................................................................55

Info..........................................................................................................................55

Main menu Input for control unit ....................................................................................56

Parameters..............................................................................................................56

Temperature ....................................................................................................56

Humidity ........................................................................................................57

Pressure ..........................................................................................................58

Density ............................................................................................................59

Contents

4

5

Contents

Page

Pitot tube factor ..............................................................................................60

Cross section ..................................................................................................61

Offset factor ....................................................................................................62

Info ..................................................................................................................62

Alarm limits..............................................................................................................63

Timer ......................................................................................................................63

Main menu Device for control unit ................................................................................64

Changing date/time ................................................................................................64

Setting the date ..............................................................................................64

Setting the time ..............................................................................................66

Auto off ..................................................................................................................66

Printer ....................................................................................................................67

Setting the contrast ........................................................................................67

Entering print text............................................................................................67

Light........................................................................................................................68

Diagnostic ..............................................................................................................68

Units ......................................................................................................................69

Main menu Service for control unit ................................................................................70

Operating values ....................................................................................................70

Resetting factory settings ........................................................................................70

Address ..................................................................................................................70

Device data ............................................................................................................70

Language ................................................................................................................71

Main menu Periphery (with touchscreen only) ................................................................71

Solid fuel measurement option for analyser box ............................................................72

CO measuring ranges in different dilution stages ....................................................73

Main menu Sensors for analyser box and control unit ..................................................73

Recalibration ..........................................................................................................74

NO

2

addition ..........................................................................................................75

Print cal. data..........................................................................................................75

Main menu Input for analyser box and control unit ........................................................76

Spot number index / WTT / oil derivatives ..............................................................76

Fuel ........................................................................................................................77

O

2

rel/CO2max/coefficient ........................................................................................77

Parameters..............................................................................................................79

Pressure ..........................................................................................................79

Pitot tube factor ..............................................................................................80

Cross section ..................................................................................................81

Offset factor ....................................................................................................82

Info ..................................................................................................................83

Dew point AT ..........................................................................................................84

Main menu Device for analyser box and control unit......................................................85

View (display sequence) ..........................................................................................85

Diagnostic ..............................................................................................................86

6

Contents

Page

Main menu Service for analyser box and control unit ....................................................87

Operating values ....................................................................................................87

Switching off CO/NO ..............................................................................................88

Device data ............................................................................................................89

Bus address............................................................................................................89

Maintenance ..................................................................................................................90

Inserting new paper roll in printer ............................................................................90

Changing the battery pack ......................................................................................91

Control unit......................................................................................................91

Analyser box....................................................................................................91

Filter change ..........................................................................................................92

Condensation trap ..................................................................................................92

Flue gas probe ........................................................................................................93

Cleaning the flue gas probe ............................................................................93

Cleaning the flue gas probe with gas path closed............................................93

Changing a defective thermocouple ................................................................93

Changing O

2

, CO and NO measuring cells..............................................................94

Installation of CO/NO2 measuring cell ....................................................................94

Installation of NO measuring cell ............................................................................94

Maintenance of the gas pumps ..............................................................................95

Opening the analyser box ................................................................................95

Cleaning the main gas pump and the purging pump ......................................95

Cleaning the main gas pump with optional gas preparation ............................96

Changing the pump cassette of the condensation pump

with optional gas preparation ..................................................................................97

Upgrades ................................................................................................................98

Calculation information ..................................................................................................99

Error messages ..........................................................................................................100

Technical data..............................................................................................................101

Ordering data ..............................................................................................................106

Notes

7

Preface

Dear Testo customer,

Your decision to buy the testo 300 XXL was an excellent choice.

The testo 300 XXL is designed for flue gas analysis and all measurements in
heating systems.

Thousands of customers buy our high-quality products every year. There are at
least 7 good reasons for this:

1) Our price/performance ratio is good. Reliable quality at a fair price.

2) Substantially extended warranty periods up to 2 years – depending on the model.

3) We provide an optimum solution to your measuring tasks with over 40 years of
professional experience.

4) Our high quality standards are confirmed by the ISO 9001 certificate.

5) Of course, our devices also bear the CE label required by the EU.

6) Calibration certificates for all relevant measurements. Seminars, consulting and
calibration on site.

7) We don’t leave you on your own after your purchase.

Use the device only in the operating and
measuring ranges specified in “Technical data”.

Use the device only under the conditions and for
the purpose for which it was designed. For this,
particularly observe the safety information and the
technical data.

To prevent damage to the instrumentation and
items under test, suitably trained persons should
only use the equipment.

Observe all local Health and Safety regulations
before operating the test equipment.

Do not make measurements on live components.

Observe the warnings on the control unit and
analyser box!

Magnets of the control unit

The magnets of the control unit can damage EC
cards, telephone cards etc.

Operation with mains adapter

Use only the original mains adapter to operate the
device. Replace damaged mains cable only with
an original mains cable of the manufacturer or
agent (i.e. by authorised service).

Check for leaks

The entire measuring system (probe, condensation
trap, filter, hoses and connections) must be
checked for leaks before each measurement, e.g.
by pushing on a collapsed rubber bladder.
Measuring errors can be caused if external air
infiltrates.

Expose the gas outlet

When measuring, ensure that the gas outlets are
exposed to allow the gas to escape unobstructed.
If this is not the case, the measurement results
can be falsified.

Empty the condensation trap

The condensation trap must only be emptied when
the pump is switched off (the measuring cells are
otherwise in danger of damage)!

Disposing of batteries

The end user is legally required to dispose of all
used batteries in accordance with their country’s
regulations.

Disposing of measuring cells

Storing the analyser in rooms containing solvents,
vapours or gases will damage the measurement
cells e.g. cleaning fluids, polishes, paints, cooking
operations. Protect the device from direct sunlight
and store at temperatures <45°C.

Storing the device

Storing the analyser in rooms containing solvents,
vapours or gases will damage the measurement
cells e.g. cleaning fluids, polishes, paints, cooking
operations. Protect the device from direct sunlight
and store at temperatures <45°C.

Charge the battery before use

Before making the first measurement or after
several days of disuse, fully charge the internal
battery (see menu Service 
Operating values). Charge the battery at least
every 4 weeks during longer periods of disuse to
prevent damagingly low discharging.

Changing the configuration

Switch off the device to change the configuration
(e.g. probe change), as the device reads the
probe-specific values when it is switched on.

PC cable connected

When the PC cable is connected, it is impossible
to issue a print command.

Using probes with plug head

Ensure the good contact of probes with plug
heads. Fully tighten the union nut on the probe
handle.

Opening the device

If the device is opened, misused or subjected to
force, the warranty will be voided.

Because the pressure sensor heats up, it is
recommended to wait on the “Warm up” for 15
minutes to achieve the best possible accuracy.

8

Principal safety information

System description

Control unit

9

On/off button

Function keys

Function bar

Touchscreen (option)

on the rear:

Contacts to analyser box

Reading display

Device active display

Touchscreen pen
holder

Printer

Reading window

Display lighting

Mains adapter connection

Pressure connection

Probe connection

Cancel/back

PC connection

Main menu display

Status display

Location

Acknowledgement

Cursor keys

Connection of the spiral BUS

cable to the analyser box

10

System description

Device operation

The analyser measurement box is controlled, read
and programmed using the control unit.

The operation of the testo 300 XXL is designed so
that the key functions are visible at all times on
the display.

The keypad

The function keys allow rapid changes of the
functions of the device and the overall control of
the measurement. The significance of the function
keys is indicated in the function bar. Not all
function keys are used in every menu. Arrows in
the function bar indicate further accessible
functions in the menu. When the right or
left cursor key is pressed, these additional
functions are displayed and can be activated with
the function key.

With the up /down cursor keys, you
can browse between the reading windows (in the
measurement menu) or select a menu item in a
list. When you have reached the last
window/menu item, the device automatically loops
back to the first window or the first menu item.

With the Browse key, you can branch from
the measurement menu to the main menu or from
a submenu to the measurement menu.

The I/O button switches the device on and off.
With the Cancel key, you can terminate

selected procedures or a chosen selection and exit
submenus. When you exit a submenu, you will
always move one menu window backwards until
you reach the main menu.

With the Acknowledge key, the selection or
the execution of the selected function is accepted.
If the key is pressed in the measurement
menu, the menu “Device selection list” appears.
The menu provides information on which device is
in use. 001=Control unit active, 002=Analyser box
active etc. If an analyser box is connected, this is
indicated automatically in the window when the
device is started.

With the Lighting key , the display lighting
can be switched on and off or the automatic timer
can be started.

The display

The display constantly shows all important
information.

In the Reading/Menu display area, 6 readings
per window are indicated in the measurement
menu. Only three readings are indicated in larger
lettering when the zoom function is used (by
function key).

The function bar indicates the significance of the
individual function keys . Their effects can
change according to the menu. The description of
the function keys changes accordingly on the
display.

The function bar can be assigned as desired to
all functions of the function menu. When the key

is pressed together with a function key, the
function menu opens. The entries in the function
menu change according to the connected
components of the measuring system.

The Operation display provides a graphic de-
scription of the current mode of the device, e.g.
whether the pump of the device is running and if
the device is running in mains operation.

The Location box constantly shows whether and
which location hasn’t been selected and is active.
If no location has been selected, “NONAME”
appears on the display.

In the measurement menu, the Reading window
on the right indicates the measured value window
in which you are currently working, e.g. 2/5
indicates that you are working in the second of 5
possible pages.

Errors are indicated on the display as soon as they
occur. The “!” symbol in the status display often
indicates the occurrence of errors.

The touchscreen function (option) allows
direct access to the functions indicated on the
display using a special pen. A brief
touch is sufficient to activate the function.

11

System description

Touchscreen (option)

Touch a position on the display with the special
pen. The main menu appears. Each menu item
can be accessed and activated with the special
pen. The example shows the individual steps to
set the lighting status of the control unit.

Measurement menu

Measurement menu

Main menu

Change “Device” settings

Change “Device” settings

or

Adjustment menu

Adjust “Light”

Adjust “Light”

Set “On/Off”

Set automatic

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12

System description

Overview of the measuring system

Measuring cell heater
protects against
destruction by
condensation

Gas
connection

DP

measurement

Spiral BUS cable

connection

Flue gas probe

connection

Probe

connection

110/230 V

50/60 Hz

Carrying

handle

Control unit

catch

Contact strips to the
control unit

LED status display

Gas path filter

Gas outlet 2

Fresh air inlet filter
Fresh air inlet

Diluting air filter
Gas outlet 1

Condensation tank

13

System description

Overview of the measuring system

0

12.1

1.27

92.4

180.1

22.2

BrSt

l

AT °C

VT °C

h %

002

04/06

Noname

Hold

Max

Min

Zoom

Volume flow
rate
measurement
with funnel

Pressure
measurement

Temperature
measuremen
t

CO safety
measurement

Gas leak
measurement

CO

2/humidity

measurement

Current
measurement
Voltage
measurement

Cable connection control
unit/spiral analyser box cable

Control unit

4 user-defined
function keys

Mains connection/
fast battery charge

Integrated differential
pressure measurement

Integrated printer

Multi-probe
input

RS 232
interface

Display

14

MEMORY

SENSORS

INPUT

DEVICE

SERVICE

MMaaiinn mmeennuu

Op. values
Switch-off
Device data
Bus address

Display sequence

Units

View

Diagnostic

Spot number/HCT

Fuel
O2rel/CO2max
Parameter

Dewpoint/ambient

Smoke number 1
Smoke number 2
Smoke number 3
Heat carrier temp.
Oil derivative
Info

O2 rel.
CO2max.
coeff.

Temperature VL

Humidity VL Dew
point VL

Pres.
Pitot tube factor
Cross-section
Offset factor
Info

Recal.
NO2 addition
Print cal. data

CO

NO

CO

NO

Read out
Mean value
Fuel meas.
Delete memory
Free memory?

System description

Menu overview
Control unit with analyser box

from height

Absolute

Pres.
Metres above
m.s.l.
Diff. pressure

Duration
No. values
Info
Save
Delete

Duration
Dilution
Info
Save
Delete

Yes

No

15

MEMORY

SENSORS

INPUT

DEVICE

SERVICE

PERIPHERY*

MMaaiinn mmeennuu

Op. values
Reset factory
Address
Device data
Lang.

Change date
Auto Off
Printer
Light
Diagnostic
Units

Touchscreen cal.

Set date

°C, °F

m/s, fpm

ppm, %

Off, td°C, g/m3,

g/kg, J/g

m3/h, cfm, m3/m,

m

3

/s, l/s, M3/h

hPa, inW, mbar,

Pa, bar, psi

Parameter
Alarm limits
Timer

Temp.
Humid.
Pres.
Density
Pitot tube factor
Cross-section
Offset factor
Info

CO limit
CO2 limit
dP limit 1
dP limit 2
Acoustic alarm

Duration
No./values
Info
Save
Delete

Circle
Square
Rectangle

Area

from height
absolute

Pressure

Metres above m.s.l.

Diff. pressure

contrast

Print text

On/off

Automatic

Temp.
Humid.
Velocity
Vol.-Flow
Pressure
Gas

yes
no

Probe socket 1

min input
max input
min output
max output
Unit
Decimal place
Info
Save
Delete

Scaling
Reset
Info

Read out
Mean
Delete memory
Free memory?

System description

Menu overview

Control unit

Off

5 Min.

10 Min.

....

*with touchscreen option only

Function menu and function bar

Commissioning

16

The function bar can be assigned as desired to all functions
of the function menu. Pressing the key with a function
key opens the function menu. The entries in the function
menu change according to the connected components of
the measuring system.

F

UNCTION MENU ANALYSER BOX/CONTROL UNIT

Pump starts. Flue gas measurement runs.

Doubles the character size.

Saves readings.

Differential temperature measurement with 2 probe inputs of
the analyser box.

Graphic display of the temperature during core current
search.

Fine draught with 0.001 hPa resolution.

Starts solid fuel measurement.

Prints readings.

Printer paper line feed.

Re-zeros the measuring cell.

Fresh air purging of the measuring cells.

Starts CO undiluted measurement.

F

UNCTION MENU, CONTROL UNIT

Doubles the character size.

Freezes the current readings.

Shows the highest value during a measurement.

Shows the lowest value during a measurement.

Calculates mean value.

Additional display for volume flow rate measurement.

Displays in metres per second.

Zeros external pressure probe.

Zeros CO probe.

Starts solid fuel measurement.

Analyser box is detected without restarting the
device.

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17

Commissioning

Function menu and function bar

LED 1

LED 2

LED 3

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Status display of the LED

Saves readings.

T1 + T2, displays differential temperature.

Differential pressure 0 - 80 mbar

Differential pressure 0 - 1000 mbar

Prints readings.

Printer paper line feed

Direct display of all error messages

F

UNCTION BAR

Cursor up (optional with touchscreen)

Cursor down (optional with touchscreen)

Menu exit (optional with touchscreen)

Confirms input (optional with touchscreen).

Set values come into effect

Change

Prints test page.

Accepts settings and closes window.

Upper/lower case switch

Back + deletes 1 character.

Space

Overview of settings

Sets standard values.

Current value comes into effect

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LED1 (Power):

Mains operation Green/Permanent
Battery operation (batt. full) Green/Flashing
Battery operation (batt. empty) Red/Flashing
Battery recharging, Off mode Off

LED2 (Status):

Measuring Green/Permanent
Fresh air/Zeroing Green/Flashing
Defect Red/Flashing

LED3 (Battery recharging):

Battery recharging (fast charge) Green, flashing
Batt. full, compensation charge Green, permanent

18

Commissioning

Power supply

115/230 V

Mains
adapter

0554.1084

or

or

Plug mains cable into analyser box. The power supply for
the control unit is ensured when

- control unit is connected to the analyser box by the
contact strips

or

- control unit is connected to the analyser box by the spiral
BUS cable

The power supply for the control unit in rechargeable
battery operation is ensured when:

- control unit is connected to the analyser box by the
contact strips

or

- control unit is connected to the analyser box by the spiral
BUS cable

Observe battery capacity.

Ensure correct polarity.

There should always be rechargeable batteries/batteries in

the control unit.

Power supply, analyser box/control unit

Control unit power supply

MAINS OPERATION

Connect mains adapter to the control unit.

MAINS OPERATION

RECHARGEABLE BATTERY OPERATION

RECHARGEABLE BATTERY OPERATION with battery pack

(art. no. 0554.0097)

RECHARGEABLE BATTERY OPERATION WITH STANDARD

BATTERIES

BATTERY OPERATION

19

Battery charging

Commissioning

Charging batteries, analyser box/control unit

Charging battery pack, control unit

The battery packs must be installed in the analyser box and
the control unit for charging.

Plug mains cable into analyser box.

Note

The units must be switched off. Charging is impossible
during operation.

The charging of the battery pack for the control unit is
ensured when:

- control unit is connected to the analyser box by the
contact strips

or

- control unit is connected to the analyser box by the
spiral BUS cable.

Charge level displays:

- Analysis box:
Recharging is in progress: Recharging battery LED
flashes green,
Recharging is complete: Recharging battery LED lights
up green

- Control unit: Shows charge level in display.

The battery pack must be installed in the control unit for
charging.

Standard batteries cannot be charged.

Plug mains adapter into the control unit.

Note

The control unit must be switched off. Charging is
impossible during operation.

Charge level display:

- Charge level is shown in display.

115/230 V

Mains
adapter

0554.1084

The end user is legally required to dispose of all used batteries in

in accordance with their country’s regulations.

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20

Example measurement

Correct use of the flue gas probe

The measurement of the flue gas temperature is made by
the thermocouple at the tip of the flue gas probe. The probe
tube protects the thermocouple, but has openings in to
allow the stream of flue gas to envelop the thermocouple.

The

temperature

measurement is made during the zeroing phase. The flue
gas probe can be adjusted in the flue at this time (Note: the
AT probe must be connected). This makes it possible to
conduct a core current search during the zeroing phase. The
temperature measured by the flue gas probe is interpreted
by the testo 300 XXL as the combustion air temperature
unless a AT probe is connected (Note: the probe must be
removed from the flue). When the zeroing phase has been
completed, this value is saved as the combustion air
temperature value.

All dependent parameters are calculated by this value.

incorrect

Flue gas
stream

Thermocouple

incorrect

correct

correct

The thermocouple must always be exposed to the stream

of flue gas to allow an exact measurement of the flue

gas temperature and thereby a precise determination of
the flue gas losses. It must not be screened by a web of
the probe pipe.

The tip of the thermocouple must not touch the guard. If

necessary, bend the tip of the thermocouple accordingly.

Example measurement

21

Preparing for measurement

with the control unit and analyser box

Control unit + analyser box + flue gas probe

1 Connect flue gas probe to analyser box.

2 Switch on .

3 Zeroing phase

Any connected CO probe and the gas measuring cells of
the analyser box are zeroed during the zeroing phase.

4 Fuel selection

The menu “Fuel selection” appears during the zeroing
phase.
Select the desired fuel with the keys or and
confirm with .

5. Back to the zeroing phase.

Note

After zeroing phase back to the measurement menu with
the key.

10 sec

Flue gas probe

Analyser box

Initialisation

Zeroing phase

Select the

fuel

Connect the flue gas probe before switching on the control
unit and the analyser box.

Note

The analyser box does not need to be activated in the
device selection menu. It is detected automatically when
the measuring unit starts.

LLooccaattiioonn 33

22

Example measurement

Starting core current search:

1 Connect flue gas probe to analyser box.

2 Place flue gas probe in flue pipe.

3 Activate the function menu with the key and one of

the function keys. Select function key with

and confirm with .

4 Start core current search with .

5 Determine core current temperature.

6 Terminate core current search with .

Note

A core current search is also possible during the zeroing
phase.

Corcur

Corcur

Core current search
with the control unit and analyser box

Measurement menu

Measurement menu

Core current menu

Select core current

10 sec

Initialisation

Device zeroing

Automatic fuel display

Zeroing phase

3 x

1 sec

Function menu

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LLooccaattiioonn 33

LLooccaattiioonn 33

Preparing for measurement

1 Specify new location and select (see page 41):

2 The four function keys of the control unit are freely

configurable with the functions of the function menu.

3 Activate the function menu with the key and one of

the function keys. Select function key with

and confirm with .

4 Start measurement with .

5 Position the flue gas probe in the core current:

Seek flue gas temperature AT max, then fasten the probe
with the cone in this position.

6 When the readings no longer change, stop the pump.

Place flue gas probe in fresh air.
The readings are retained until the pump is next started.

PStart

PStart

Example measurement

Flue gas measurement at burners

with the control unit and the analyser box

23

Back to the measurement menu

If the flue gas probe is positioned vertically or at an angle

of up to 45°, falling drops of condensation can cause a

sudden drop in the temperature.

Remedy: Readjust flue gas probe.

Measurement menu

Location

Measurement menu

Function menu

Measurement menu

Measurement menu

1 sec

Conducting a CO measurement in gas burners (flue gas path test)
with the control unit and analyser box

1 Activate the function menu with with the key and

one of the function keys. Select function key
with and confirm with .

2 Start measurement with .

3 Measure undiluted CO with .

Display of the function key changes to .

4 Finish undiluted CO measurement with .

Undiluted CO is saved.

5 Finish measurement with .

PStop

uCO off

uCO off

uCO on

PStart

uCO on

uCO off

uCO on

24

Example measurement

Measurement menu

Function menu

Measurement menu

CO limit for the rejection of a system (in relation to

undiluted flue gas): > 1000 ppm uCO

Draught measurement

with the control unit and the analyser box

25

Preparing for measurement

Use the flue gas probe for the draught measurement. The
draught measurement can be conducted before or after a
flue gas measurement.

Start measurement

1 Activate the function menu with the key and one of

the function keys. Select function key with

and confirm with .

2 Start measurement with .

3 Place probe in flue.

4 Display of the current reading.

Draught

Draught

Example measurement

A draught measurement is only possible with the pump

switched off. The + pressure inlet of the device must be

open!

Do not change between battery and mains operation
during the draught measurement (voltage fluctuations
influence the result of the measurement)!

If you conduct the draught measurement after a flue gas
measurement, a head of pressure exists in the hose after
the pump has stopped, which must be dispelled. This
occurs within approx. 30 seconds.

Remove any traces of condensation in the flue gas probe
(shake out the probe with the tip towards the floor).

Sensor zeros automatically, probe must be outside

the flue.

Negative sign indicates vacuum,
positive sign indicates pressure in the flue.

Select “Draught”

Measurement menu

Flue gas probe
outside flue

Place probe in flue

Stable reading?

Autom. zeroing

Result

Measurement menu

Function menu

1 sec

DDrrgghhtt

Preparing for measurement

Selection of a suitable measuring range.
Two measuring ranges P1 (-80 to +80 hPa) and P2 (-1000
to +1000 hPa) are available in the function menu:

Start measurement
1 Device selection: control unit

2 Activate the function menu with the key and one of

the function keys. Select the function key (low
range) or (high range) with and
confirm with .

3 Zero sensor with function key .

4 Start measurement with function key , stop

measurement with function key or the measure­ment is terminated automatically when the time has
expired (Input menu - Timer).

5 Display and printing of the current reading.

TStop

TStart

dP1

dP2

dP1

26

Differential pressure measurement
with the control unit

Example measurement

Do not use in the main duct!

Ensure that there are no leaks between the sampling
point and the device (escaping gas and atmospheric
oxygen can create an explosive mixture)!

Do not smoke or use naked flames during the
measurement!

Observe the rated pressure of the connections!

Do not exceed the measuring range!

No gas enters the device because an air cushion forms
between the sensor and the gas inlet. The measuring unit
is therefore not protected against explosions.

Measurement menu

Measurement menu

Measurement menu

Function menu

Select “dP1” and/or

“dP2”

Automatic sensor

zeroing

Start measurement

Stop measurement

Print

1 sec

10 sec

dP1

TT SStt aarrtt

TT SStt oopp

01:00 min

00:27 min

27

Measurement with control unit + temperature probe

For pure temperature measurement, e.g. supply / return
temperature

The testo 300 XXL control unit has a multi-probe input.

1 Activate the function menu with the key and one of

the function keys. Select the function key
with and confirm with .

2 Measure T1: Press function key .

3 Measure T2: Press function key .

4 Display of the measured differential temperature value

Measurement with control unit + analyser box + 2
temperature probes

Device selection: flue gas measuring box

1 Configure function key with (see above)

2 display of the current value of Temp.1 (probe

connection), Temp.2 (flue gas probe connection) and the
differential temperature.

DeltaT

DeltaT

T2

T1

DeltaT

Differential temperature measurement

with the control unit

Display

Temp. 1

Display

Temp. 2

Before switching on the testo 300 XXL, connect the
temperature probe!

Example measurement

T1 T2

Measurement menu

Differential temperature

Measurement menu

Measurement menu

Function menu

Select “Delta T”

1 sec

DDeellttaa TT

TT 11

TT 22

4499..88

1155..44

3344..44

Measurement with: control unit + CO probe

1 - Initialisation - Zeroing of the CO probe (60 sec)

After zeroing, the CO probe is ready for measuring.

2 Open cap.

Note

The direction of flow of the gas to the probe influences
the measuring accuracy! Optimum measurement results
are achieved when the probe is moved gently backwards
and forwards. Frontal flow onto the probe leads to
excessive readings!

3 Close cap after the measurement.

28

CO measurement
with the control unit

Example measurement

Connect probe before switching on the control unit!

Cap must be closed during zeroing (measuring error

otherwise possible).

Open the cap only during the measurement, then replace.

Warning message when adjusted CO value is exceeded

(change limit in Main menu “Input - Alarm limits Æ- CO

limit”).

10 sec

Initialisation

CO probe zeroing

60 sec

Measurement menu

11 0000

Explosive and flammable gases, particularly natural gas and
propane, are detected by the gas leak probe even in low
concentrations in the air. For example, suitable for finding
leaks in gas pipes, vessels and equipment.
1 Connect the probe before switching on the

testo 300 XXL.

2 After the device has been switched on, the warming up

phase of the leak detection probe is automatically started
(approx. 30 sec). Green, yellow and red LED, steady
tone.

3 Ready for use

Green LED flashes steadily, steady tone stops.

4 Conduct leak detection:

• When gas escapes, acoustic signal
(ticking) is audible, becoming faster with increasing
concentration.

• When the 1st switching limit (> 200 ppm) is exceeded,
yellow LED flashes.

• When the 2nd switching limit (> 1%) is exceeded, red
LED flashes, steady tone. No readings of the gas leak
probe are indicated in the display.

The power supply of the gas leak probe is provided by the
control unit.

29

Service tip:
The trigger limit is factory
adjusted to 200 ppm
CH4 gas.

The 1st alarm limit can
be finely adjusted in a
range from 0...1000 ppm
(perform in fresh air only).

Example measurement

Gas leak probe

with control unit

Do not use the gas leak probe and testo 300 XXL in

enclosed rooms or facilities in which gases have

accumulated into an explosive mixture.

The use of other electrical equipment is also prohibited.

It must be ensured that the gas concentration does not
exceed 20% LEL.

Duration of measurement with the gas leak probe with fully

charged battery, maximum 2 hours.

Remove the gas leak probe from the device
immediately after the measurement to prevent heavy
battery discharge.

Never leave the gas leak probe connected when charging
the batteries.

red LED

yellow LED

green LED

Trimmer potentiometer
for fine adjustment of
the 1st alarm limit.

30

Example measurement

Humidity measurement
with the control unit

Measurement with: combination humidity probe, e.g.
Part no. 0636.9740

1 Connect combination humidity probe to the probe input

of the control unit.

2 Switch on the control unit.

3 Current readings of relative humidity, temperature and

dew point are displayed.

Changing units:

- Press key

- In Main menu - Device - Units – Change unit

A detailed description is contained in chapter Main menu,
Device for control unit - Units.

10 sec

Initialisation

Zeroing

Measurement menu

31

Example measurement

Velocity measurement

with the control unit

Special notes on the thermal velocity probe with
direction probe 0635.1041

Fully push down the cap of the probe.

During the measurement, observe the markings of the
probe head and on the telescope. The markings must form
a line.

For velocity measurements with a known
direction of flow, the arrow mark on the probe
head must point in the direction of flow.

For velocity measurements with an unknown
direction of flow, turn the probe 360° around its
axis. Observe the reading. The maximum value
indicates the direction of flow.

Note

Measurement against the direction of the arrow falsifies the
readings by up to 40%.

32

Example measurement

Velocity measurement (hot wire or vane)
with the control unit

Volume flow measurement in a duct with 500 mm
diameter with velocity probe.

1 Connect the velocity probe to the probe input of the

control unit.

2 Switch on control unit.

3 Activate the function menu with the key and one of

the function keys. Select the function key
with and confirm with .

4 Enter duct diameter:

- Press key.

- From Main menu – Input – Parameter – Cross section ­Circle – enter value

5 Accept the value with function key .

6 Return to the measurement menu with .

7 Start measurement with .

VOL

End

Zeroing

10 sec

Initialisation

Measurement menu

Measurement menu

Measurement menu

Measurement menu

VOL

1 sec

20 sec

Select “Vol”

Main menu

Select “Input”

Select “Parameter”

Function menu

Select “Cross section”

Select “Circle”

Value is automatically

saved

Enter value

End

Vol

33

Example measurement

Velocity measurement (hot wire or vane)

with the control unit

Mean value

1 Connect the velocity probe to the probe input of the

control unit.

2 Switch on control unit.

3 Activate the function menu with the key and one of

the function keys. Select the function key with

and confirm with .

4 Enter averaging:

- Press function key .

- Select menu and enter value.

5 Accept value with function key and return to the

measurement menu.

6 Start averaging with .

7 End averaging with .

8. Return to the measurement menu with .

ESC

End

Start

End

Mean

Zeroing

10 sec

Initialisation

Measurement menu

Measurement menu

Measurement menu

1 sec

20 sec

Select “Mean”

Select “Timed/Multi-

point”

Start averaging

Calculating mean

value

Mean calculation

result

Function menu

Enter value

End

End

ESC

Start

22..2255

Mean

34

Example measurement

Velocity measurement (volume velocity measurement with funnel)
with the control unit

Volume flow measurement at an inducing opening

A volume flow rate funnel is required for volume flow rate
measurement at an inducing opening (grid or cap with
annular gap).

The opening of the funnel must completely cover the grid
(max. 200 x 200 mm with 0554.0400 or max. 350 x
350 mm with 0554.0410).

1 Connect velocity probe, preferably 0635.1041, to the

probe input of the control unit.

2 Switch on control unit.

3 Activate the function menu with the key and one of

the function keys. Select function key with

and confirm with .

4 Enter duct diameter:

- Press key

- From Main menu - Input - Parameter - Cross section -
Circle - enter value 8.82 cm.

5 Accept the value with function key

6 Return to the measurement menu with .

7 Start measurement with .

VOL

End

VOL

Zeroing

10 sec

Initialisation

Measurement menu

Measurement menu

Measurement menu

Measurement menu

1 sec

20 sec

Select “Vol”

Main menu

Select “Input”

Select “Parameter”

Function menu

Select “Cross section”

Select “Circle”

Value is automatically

saved

Enter value

End

Vol

35

Example measurement

Velocity measurement (pitot tube)

with the control unit

Velocity measurement with pitot tube

Method 1 (limited):
Connect the pitot tube directly to the pressure inlet of the

control unit. Limitation: Only the pressure value is shown
during the measurement. The values for velocity speed and
volume flow are shown when the measurement is complete.

Method 2:
Use the pitot tube preferably with the pressure probe order

no. 0638.1445 due to the optimum accuracy. Measuring
range up to approx. 40 m/s. An additional channel is also
displayed (hPa, m/s, m

3

/h).

The velocity is calculated automatically by the device from
the pressure difference at the pitot tube.

Note

The pitot tube factor of the standard Testo pitot tubes is

1.00 and need not be changed. Enter the factor 0.67 for
the straight testo pitot tubes. For other pitot tubes, ask the
supplier for the pitot tube factor and store.

1 Connect the pressure probe to the probe input or the

pitot tube to the pressure outlet of the control unit.
2 Switch on control unit.
3 Enter the pitot tube factor:

- Press key

- From Main menu – Input – Parameter – Pitot factor –
Set value

5 Accept the value with function key .
6 Return to the measurement menu with .

End

Select “Parameter”

Main menu

Select “Input”

Select “Pitot factor”

Measurement menu

Value is automatically

saved

Enter value

End

10 sec

5 sec

Initialisation

Zeroing

Measurement menu

36

Example measurement

CO2measurement with the control unit

The probe 0632.1240 measures concentrations of 0...9999
ppm.
1 Connect probe, switch on control unit.

2 Warming up phase of the CO2 sensor

3 Display of a reading

4 Enter absolute pressure:

- Press key.

- From Main menu – Input – Parameter – Pressure –

Absolute pressure – Set value

5 Accept the value with function key .

6 Return to measurement menu with .

7 Display of the current reading.

End

The measured CO2 value depends on the absolute

atmospheric pressure. This effect is compensated by the

device internally. For this, enter the absolute pressure of
the location in the main menu. The displayed CO2 value
is automatically compensated to the entered absolute
pressure.

To avoid the effects of the CO2 content of respired air, hold

the probe as far away from your body as possible.

The measuring principle is based on infrared absorption.

This type of probe has a relatively high power

consumption. For long-term measurements, use the

mains adapter and rechargeable batteries.

If sudden changes occur in the concentration, the probe

will require 30 – 60 sec. to adapt to the environment.

Gently waving the probe reduces the adaptation time.

10 sec

30 sec

Initialisation

Measurement menu

Measurement menu

EE nn dd

Warming up phase

Main menu

Select “Parameter”

Select “Pres.”

Select “Absolute”

Enter value

Select “Input”

Measurement with control unit + CO2 probe

37

Example measurement

Current/voltage measurement

with the control unit

Measurement with control unit + cable 0554.0007

Currents and voltages are measured with the probe

0554.0007.
These signals can be assigned to a different physical unit.

Example: 0...20 mA are to represent 0...100 %RH when
displayed later.

1 Connect current and voltage cable, switch on control

unit.

2 Enter the physical unit:

- Press key.

- From Main menu - Probe - Scaling- Probe socket 1 ­Menu min. input, max. input... Set values

- Min. input - - enter 0 -

- Max. input - - enter 20 -

- Min. output - - enter 0 -

- Max. output - - enter 100 -

- Enter unit

- %RH -

- Enter decimal places - .

3 Scaling info

4 Return to the measurement menu with .

5 Display of the current reading.

Main menu

Select “Probe”

Select “Scaling”

Select “min input”

Set value

Display info

Set further values

(see above)

Select “Probe”

socket 1

Measurement menu

10 sec

Initialisation

Measurement menu

EE nn dd

EE nn dd

OO KK

EE nn dd
EE nn dd

EE nn dd

EE nn dd

38

Printing

Printing the measurement results

Printout of the currently displayed readings:

1 Activate the function menu with the key and

function key.

2 Configure function key with .

3 With key back to the measurement menu.

4 Press function key .

5 Print.

If no location is active, the printout is made with
“NONAME”.

Print

Print

testo 300 XXL
SN: 000321/D

Smith Ltd.
Manchester

Location: furnace 5

15:01:00 08:20:15

Fuel: Natural gas

10.9 % CO2

0.45 % O2

2348 ppm CO

320 ppm NO

15 ppm NO2

1050 °C Flue gas temp.

32.5 °C Comb. temp.

15.2 m/s Velocity

1.2 % Flue gas loss

Batch 25/2

Date/time

Memory identifier

Fuel

Readings

1 sec

Measurement menu

Function menu

Select print

Measurement menu

Print

39

Main menu Memory

Overview

The memory organisation of the testo 300 XXL is designed
such that a so-called “Location” must exist to identify a
saved reading. This location can consist of up to 20
alphanumeric characters.

For example, a location may be:

- the name of the customer

- a customer number or

- the designation of a location.

Several measurements can be saved for each location. This
is possible by pressing the function key

“Mem.”

several

times.

It is also possible to place locations in directories
(see Measurement data processing).

The maximum possible number of measurements depends
on whether each individual measurement is saved with its
own location or all measurements are saved exclusively with
one location.

40

Main menu Memory

Saving without selecting a location

Measurement menu

Function menu

Select “Mem.”

Measurement menu

Save under
“NONAME”

Depending on the selected devices, the readings are

saved in the activated component (control unit or

analyser box).

If no location has been chosen after the device was
switched on, data can still be saved. The location
“NONAME” is used for this. This location is the default
setting.

1 sec

Save currently displayed readings

1 Activate the function menu with the key and

function key.

2 Configure function key with .

3 With key to get back to the measurement menu.

4 Press function key .

5 Save.

If no location is active, the data is saved under “NONAME”.

MMeemm..

MMeemm..

MMeemmoorryy

1. Change to menu “Location” with key and .

2. Press key

in window “Location”.

3. With keys , select “New loc”
and confirm with key .

4. Enter the location.

5. With function key , the location is accepted in the

“Location” menu.

End

Change

41

Main menu Memory

Creating a new location

Measurement menu

Location

“New loc” selected

Name location

Displays new

location

Measurement menu

Create new location

change

OK

Confirm selec­ted character
with “OK” key.

End

42

Main menu Memory

Selecting saved location

1. Change to menu “Location” with key and .

2. Select desired location with keys .

3. Accept with key . Returns to the measuring menu.

4. With the function key

“Mem.”

, the current readings are

saved under the selected location.

This menu item is accessible during the zeroing phase of the
testo 300 XXL.

Measurement menu

Measurement menu

Location

saved location

selected

43

Main menu Memory

Using an existing location as format for a new location

Location selected

Select “copy”

Location

1. Change to menu “Location” with key and .

2. Select the location to serve as the source for the copy.

3. Press .

4. Activate the “copy” function. Press . The cursor is
behind the last character of the location.

5. Press function key “Å” to the desired character. The last
character is deleted each time.

6. With keys , , , , select the desired
character (text input) and accept with key .

7. When the location is complete, press function key

, returning to the location list. The newly created
location is displayed.
Branch to the measurement manu with key .

End

Change

Measurement menu

change

Å

“copy” is activated

Renaming a

location

Location renamed

Displays new

location

Measurement menu

End

Confirm

selected

character

with “OK”

key

44

Main menu Memory

Changing existing location

Location selected

Select “Change”

Location

1. Change to menu “Location” with key and .

2. Select the location to be changed.

3. Press .

4. Activate the “Change” function. Press function key “OK”.

5. Press function key “Å” to the desired character. The last
character is deleted each time.

6. With keys , , , , select the desired
character (text input) and accept with key .

7. When the location is complete, press function key ,

returning to the location list. The renamed location is
displayed. The changed location is deleted.
Branch to the measurement menu with key .

End

Change

Measurement menu

change

Å

“Change” activated

Changes the

location name

Location renamed

Displays new

location

Measurement menu

End

Confirm

selected

letter with

“OK”

key

45

Main menu Memory

Deleting existing location

1. Change to menu “Location” with key and .

2. Select the location to be deleted.

3. Press .

4. Activate “Delete” function. Press function key .

5. Location is deleted.

6. With function key or key back to the mea-

surement menu.

ESC

OK

change

Measurement menu

Select “Delete”

Entry deleted

“Delete” activated

Location selected

Location

Measurement menu

change

Note

s

OOKK

46

Main menu Memory

Barcode pen overview

The barcode pen automates the allocation of measurement
data to a location.

If a barcode label is attached on site, this can be read with
the barcode pen.

The barcode pen is connected to the RS-232 socket on the
bottom of the device and can be connected and
disconnected whilst the device is switched on.

Activate the barcode pen by holding the tip of the pen briefly
against a white surface, e.g. the barcode label. Then move
the pen evenly and quickly in direct contact across the
barcode pattern. A correct reading is indicated by a signal
tone.

The location is automatically accepted in the location list of
the testo 300 XXL and is selectzed as the active location. It
is unnecessary to read or manually enter the customer
number of the customer where you are measuring
beforehand with a PC or by hand into the testo 300 XXL.
When you visit a customer whose customer number is not
saved in the device, you can read the number directly on
site by the barcode into the testo 300 XXL. If the location
read by the barcode pen already exists in the testo 300

XXL, this is activated.

Note

Barcodes can be created and decoded with the evaluation
software.

47

Main menu Memory

Reading a location with the barcode pen (during the zeroing phase)

You can also enter the location after the expiry of the zeroing
phase.

Reading a location from the measurement menu

Reading several locations with the barcode pen from
measurement menu.

Procedure as described above (simply repeat the
procedure). The location last read is active.

10 sec

Initialisation

Device zeroing

Measurement menu

Measurement menu

Measurement menu

48

Main menu Memory

Displaying saved readings

1.Change to menu “Location” with key and .

2.Select location and confirm with key .

3.Press key in the measurement menu.

4.Select “Memory” menu and confirm with key .

5.Activate “Read out” menu with key .

6.Display of the saved readings.

Main menu

Memory menu

Memory menu

Measurement menu

Displays saved

readings

Displays saved

readings

Measurement menu

Location selected

Location

2 x

49

Main menu Memory

Mean calculation

Mean value menu

Mean value menu

Activated

Specify length of time

Main menu

Measurement menu

Start Mean
Calculation

1.Press in the measurement menu.

2.Select “Memory” menu and confirm via .

3.Select mean value menu and press .

4.Enter duration of mean calculation. Confirm reading by

clicking on .

5.Enter number of mean calculations. Confirm reading by

clicking on .

6.Information on input values. Mean calculation can be

started by clicking on .

Note:

Mean calculation stops automatically once the specified
length of time has elapsed.

EE nn dd

EE nn dd

EE nn dd

Enter number

EE nn dd

OO KK

OO KK

Information

Automatic Stop

Mean calculation

SS tt aa rrtt

50

Main memory Memory

Printing mean calculation result

Main menu

Read out menu

Displaying and selecting

saved readings

1. Start mean calculation

2. To measurement menu after automatic stop.

3.Change to “Main menu” menu by clicking on .

4.Activate “Memory” menu.

3.Select “Read out” sub-menu.

4. Confirm by clicking on .

5.Displays saved readings. Select value which is to be
printed and start printing by clicking on

.

6.Return to measurement menu by clicking on .

Start

Mean calculation

Measurement menu

Automatic stop

Display of selected

values

Prints out data

Return to

measurement menu

PP rr ii nntt

PP rr ii nntt

Example of printout

51

Main menu Memory

Deleting entire memory

Main menu

Measurement menu

Measurement menu

Memory menu

Select “Delete

memory”

Select yes

1. Change to menu “Main menu” with key .

2. Activate the “Memory” menu.

3. Select submenu “Delete memory”.

4. Delete memory “Yes/No”

5. Confirm with key .

6. Return to measurement menu via

52

Main menu Memory

Printing saved readings of a location

Measurement menu

Measurement menu

Location selected

Select “Print location”

Print location

Location

cc hhaa nngg ee

Location

1. Change to menu “Location” with key and .

2. Select location and activate function key .

3. Select menu “Print location”.

4. Start printing with key .

5. Then return to the measurement menu with key .

CC hhaa nngg ee

53

Main menu Memory

free memory?

Measurement menu

Measurement menu

Main menu

Select “Memory”

Select “free

memory?”

Displays free

memory

1. Change to the main menu with key .

2. Activate the “Memory” menu with .

3. Select “free memory?”

4. Display free memory with key .

5. Return to the measurement menu with key .

The menu provides information on the available memory
capacity to save readings.

54

Scaling

Select “Probe”

Select “Scaling”

Select “min input”

Set value

Display info

Set further values

(see above)

Select “Probe

socket 1”

Measurement menu

Measurement menu

Currents and voltages are measured with the probe

0554.0007.
These signals can be assigned to a different physical unit.

Example: 0...20 mA are to represent 0...100 %RH when
displayed later.

1 Connect current and voltage cable, switch on control

unit.

2 Enter the physical unit:

- Press key.

- From Main menu - Probe - Scaling- Probe socket 1 ­Menu “min input.”, “max input”... “Set values”

- Min input - - enter 0 -

- Max input - - enter 20 -

- Min output - - enter 0 -

- Max output - - enter 100 -

- Enter unit

- %RH -

- Enter decimal places -

3 Scaling info

4 Return to the measurement menu with .

EE nn dd

EE nn dd

OO KK

EE nn dd

EE nn dd
EE nn dd

EE nn dd

Main menu Probe

for control unit

55

Main menu Probe

for control unit

Info

Information on the entered values for calibration and
scaling.

Resetting

Entered scaling values are reset to the factory settings.

Select “Probe”

Select “Reset”

Probe socket 1

Reset

Measurement menu

Measurement menu

1. Change to the main menu with key .

2. Activate “Probe” menu with .

3. Select “Reset”.

4. Display the probe socket with key . .

5. Press key to reset.

5. Return to the measurement menu with key .

56

Current reading

comes into effect

or

Menu: Set humidity value

Parameters

Note

The temperature, relative humidity and absolute pressure
influence the air density at the measuring point. When these
values have been entered, the density is calculated
automatically. The result is composed as follows:

Temperature

Humidity Density
Metres above sea level
Barometric pressure Absolute pressure
Differential pressure

TEMPERATURE

Enter the temperature as a parameter:

1 Connect probe, switch on control unit.

2 Change to the main menu with key .

3 From Main menu – Input – Parameter – select the

“Temp.” menu.

4 Accept the current reading with key or select

“Input temperature” with the cursor keys.

5 With function key , an automatic branch is made

to the menu “Input humidity” or with key back to the
measurement menu.

Main menu Input

for control unit

Measurement menu

Select “Input”

Select “Parameter”

Select “Temp.”

Enter temperature

EE nn dd

EE nn dd

57

H

UMIDITY

Enter the humidity as a parameter:

1 Connect probe, switch on control unit.

2 Change to the main menu with key .

3 From Main menu – Input – Parameter – select Humidity

menu.

4 Accept the current reading with key or select

“Input humidity” with the cursor keys.

5 With function key , an automatic branch is made

to the menu “Input barometric pressure” or with key ,
back to the measurement menu.

Main menu Input

for control unit

Select “Humid.”

EE nn dd

Current reading

comes into effect

Menu: Set

pressure value

Enter humidity

EE nn dd

Measurement menu

Select “Input”

Activate “Parameter”

or

58

P

RESSURE

Note

The absolute pressure is determined in the measuring
procedure depicted to the side. The absolute pressure
results from

• Altitude pressure (metres above sea level)

This has an annual average at sea level of 1013 mbar. The
higher the location is above sea level, the lower the
pressure.

• Barometric pressure

This has an annual average independent of the altitude
1013 mbar. This pressure can fluctuate from the annual
average by approx. ±20 mbar depending on the weather
(see local barometer display).

• Differential pressure

This is the higher or lower pressure in the duct.

The entry of the absolute pressure (in hPa only; it is
impossible to switch to other units) has an effect on the
pressure-dependent measurement values. These are
automatically compensated by the pressure: for humidity
(g/kg, J/g), CO2 and in all thermal probes!

Enter the pressure as a parameter:

1 Connect probe, switch on control unit.

2 Change to the main menu with key .

3 From Main menu – Input – Parameter – select Absolute

pressure menu.

4 Accept the current reading with key or select

“Input absolute pressure” with the cursor keys.

5 With function key , an automatic branch is made

to the menu “Input density” or with key , back to the
measurement menu.

Main menu Input

for control unit

Select “Pres.”

Enter the absolute

pressure

Select “Absolute”

Menu: Set

density value

EE nn dd

Current reading

comes into effect

or

EE nn dd

Measurement menu

Select “Input”

Activate “Parameter”

59

D

ENSITY

Note

Factory setting: 1293 g/m

3

If this value is not changed, this value is used for the
calculation. The individual values are not taken into account.

The temperature, relative humidity and absolute pressure
influence the air density at the measuring point. These
values can be entered.

When these values have been entered, the density is
calculated automatically.

Enter density as a parameter:

1 Connect probe, switch on control unit.

2 Change to the main menu with key .

3 From Main menu – Input – Parameter – select the

“Density” menu.

4 Accept the current reading with key or select

“Input density” with the cursor keys.

5 With function key , an automatic branch is made

to the menu “Input pitot tube factor” or with key ,
back to the measurement menu.

EE nn dd

Main menu Input

for control unit

Select “Density”

Enter the density

Menu: “Set pitot

tube factor”

Measurement menu

Select “Input”

Activate “Parameter”

Current reading

comes into effect

EE nn dd

or

60

P

ITOT TUBE FACTOR

Note

The pitot tube factor of the standard Testo pitot tubes is

1.00 and need not be changed. Enter the factor 0.67 for the
straight testo pitot tubes. For other pitot tubes, ask the
supplier for the pitot tube factor and store.

Enter the pitot tube factor as a parameter:

1 Connect probe, switch on control unit.

2 Change to the main menu with key .

3 From Main menu – Input – Parameter – select “Pitot

factor” menu.

4 Accept the current reading or select “Set pitot tube

factor” with the cursor keys.

5 With function key , an automatic branch is made

to the menu “Cross section - Circle” or with key ,
back to the measurement menu.

Main menu Input

for control unit

EE nn dd

Measurement menu

Select “Input”

Activate “Parameter”

Select “Pitot factor”

Set the pitot tube

factor

Menu: “Cross

section”

EE nn dd

61

Main menu Input

for control unit

CROSS SECTION

Enter the cross section as a parameter:

1 Connect probe, switch on control unit.

2 Activate the function menu with the key and one of

the function keys. Select the function key with

and confirm with .

3 Enter duct diameter:

- Press key.

- From Main menu – Input – Parameter – Cross section

- Circle – input value (8.82 cm)

- Square – input value

- Rectangle – input value

- Length a – input value

- Length b – input value

- Area – Input value

4 Accept the respective entered value with function key

.

5 Go automatically to the menu “Offset factor” or press

to go back to measurement menu.

6 Start measurement with .

VOL

End

VOL

Measurement menu

Select “Input”

Activate “Parameter”

Select

”Cross section”

Respective set

value comes into

effect

Enter offset factor

or

EE nn dd

Select “Circle”,

“Square”,

“Rectangle”, “Area”

Enter value for

”Circle”, “Square”,

“Rectangle”, “Area”.

62

Main menu Input

for control unit

Measurement menu

Select “Input”

Activate “Parameter”

Select “Offset

factor”

Set the offset factor

Set value comes

into effect

EE nn dd

Measurement menu

Select “Input”

Activate “Parameter”

Select “Info”

Parameter info

Measurement menu

INFO

Overview of all parameters

1 Change to the main menu with key .

2 From Main menu – Input – Parameter – select the “Info”

menu.

3 Return to the measurement menu with key .

OFFSET FACTOR

1 Connect probe, switch on control unit.

2 Change to the main menu with key .

3 From Main menu – Input – Parameter – select “Offset

factor” menu.

4 Accept the current value with key or select “Set

offset factor” with the cursor keys.

5 Go automatically to the menu “Offset factor” or press

to go back to measurement menu.

EE nn dd

Offset factor calculation:

v = k

y s y

k = Offset factor
s = Pitot tube factor
p = Pressure (Pa)
rho = Density (kg/m

3

)

2p

rho

Parameter info

63

Alarm limits

Note:

The alarm for CO is factory adjusted and activated to 30
ppm and for CO2 to 5000 ppm. The alarm limits for dP are
set to zero and deactivated. The acoustic alarm is switched
on.

If alarm limits are set and activated, a message appears on
the display if these are exceeded during measurements.
If the acoustic alarm is switched on, a signal tone indicates
that values have been exceeded.

Note

dP measurements
When the timer is switched on, the alarm limit automatically
activates.

Enter alarm limits:

1 Switch on the control unit.

2 Change to the main menu with key .

3 From Main menu - Input – Alarm limits:

- CO limit - enter value

- Enter CO2 value

- dP limit 1 - enter value

- dP limit 2 - enter value

- Switch acoustic alarm on or off

4 Enter characters with the cursor keys.

5 Accept the respectively entered value with function key

.

6 Return to the measurement menu with key .

EE nn dd

Timer

In addition to the alarm limit, a timer can be set for the dP
measurement (primary and main test to TRGI). When the
timer is switched on, the alarm limit for dP is automatically
activated.

Main menu Input

for control unit

Activate “Alarm

limits”

Select “Audible alarm”

Set “CO”, “CO2

limit”, “dP limit 1”,

“dP limit 2”

Switch on the

acoustic alarm

Accept the set

value

EE nn dd

OO KK

Accept the setting

Measurement menu

64

Main menu Device

for control unit

Measurement menu

Main menu

Select “Change

date”

Set the date

Current date

Select number

Confirm selection,
automatic branch to
next item

EE nn dd

cc hh aa nngg ee

Measurement menu

2 x

EE nn dd

cc hh aa nngg ee

Changing the date

S

ETTING THE DATE

1 Switch on control unit.

2 Change to the main menu with key .

3 From Main menu – Device – Change date – Set date/time

menu

4 Activate menu “Set date” with key .

5 With the cursor keys select numbers

in the nuumeric block and accept with key .

6 The date box automatically jumps to the next number.

Note

With the function keys or with the
icons left and right of the numeric block, it is possible to
bypass numbers.

7 Terminate input with function key .

Date box

Numeric block

65

S

ETTING THE TIME

1 Switch on control unit.

2 Change to the main menu with key .

3 From Main menu – Device – Change date – Set

Date/time menu.

4 With key , select menu “Change date” and activate

with key .

5 With the cursor keys select numbers

in the numeric block and accept with key .

6 The date box automatically jumps to the next number.

Note

With the function keys or with the icons left
and right of the numeric block, it is possible to bypass
numbers.

7 Terminate input with function key .

Main menu Device

for control unit

EE nn dd

cc hh aa nngg ee

Set the time

Current time

Select number

Time box

Numeric block

Confirm selection,
automatic branch to
next item

EE nn dd

CC hh aa nngg ee

Measurement menu

2 x

Measurement menu

Main menu

Select “Change

date”

66

Main menu Device

for control unit

Measurement menu

Measurement menu

Main menu

Select “Device”

Select “Auto off”

Set time

The entry is

accepted

automatically.

Auto off

The period after which the control unit switches off when not
in use is specified in the menu “Auto off”.

1 Switch on control unit.

2 Change to the main menu with key .

3 From Main menu – Device – Auto off – Set time.

4 This is accepted automatically with key . .

5 Return to the measurement menu with key .

67

Main menu Device

for control unit

Measurement

menu

Measurement menu

Main menu

Select “Device”

Select “Printer”

Select “Contrast”

Set the contrast

Printer

S

ETTING THE CONTRAST

1 Switch on control unit.

2 Change to the main menu with key .

3 From Main menu – Device - Printer - Contrast-

Set contrast

4 This is accepted automatically with key .

5 Return to the measurement menu with key .

TT ee sstt

EE nn dd

EE nn dd

Measurement

menu

Measurement menu

Main menu

Select “Device”

Select “Printer”

Select “Print text”

Select “Line”

Label the line

ENTERING PRINT TEXT

1 Switch on control unit.

2 Change to the main menu with key .

3 From Main menu - Device - Printer – Print text – Select

lines 1 - 3 or footnote – enter text (e.g. company name,
address)

4 The entered line is accepted automatically with key

.

5 Return to the measurement menu with key .

EE nn dd

EE nn dd

Test printout

Light

Note

“On/Off” Pressing key switches the lighting on,

pressing again back off.

“Automatic” Pressing key switches the lighting on,

after approx. 3 min. the lighting is automatically
switched off.

1 Switch on control unit.

2 Change to main menu with key .

3 From Main menu - Device - Light – select “Light type”.

4 The selection is accepted automatically with key

.

5 Return to the measurement menu with key .

68

Diagnostic

Displays all unrectified error messages.

Main menu Device

for control unit

Measurement menu

Main menu

Select “Device”

Select “Light”

Select “On/Off/

automatic”

OO KK

OO KK

Measurement menu

69

Units

Example: Set °C

1 Switch on the control unit.

2 Change to the main menu with key .

3 From Main menu – Device - Units - Temperature -

enter °C.

4 Accept the entered value with function key .

5 Return to the measurement menu with key .

Available units:

Temperature:

°C, °F

Humidity:

Off, td°C, g/m3, G/kg, J/g

Velocity:

m/s, fpm

Volume flow:

m3/h, cfm, m3/m, m3/s, l/s, m3/h

Pressure:

hPa, inW, mbar, Pa, bar, psi

Gas:

ppm, %

Main menu Device

for control unit

Measurement menu

Main menu

Select “Device”

Select “Units”

Select the
parameter

Specify unit

OO KK

OO KK

Measurement menu

70

Operating values

Resetting factory settings

Main menu Service

for control unit

Display operating

values

Display device data

1 Switch on control unit.

2 Change to the main menu with key .

3 From Main menu - Service – select “Op. values”.

4 Return to the measurement menu with key .

Reset to initial settings.

Address

Input via PC software only.

Measurement menu

Main menu

Select “Service”

Select “Op. values”

Measurement menu

Device data

1 Switch on control unit.

2 Change to the main menu with key .

3 From Main menu – Service – select “Device data”.

4 Return to the measurement menu with key .

Control Unit

Control Unit

71

Main menu Service

Main menu Periphery

for control unit

Set “Language”

Measurement menu

Main menu

Select “Service”

Select “Language”

Calibrate the

touchscreen

Measurement menu

Main menu

Select “Periphery”

Activate “Touchscreen”

Measurement menu

Language

1 Switch on control unit.

2 Change to the main menu with key .

3 From the main menu - Service - Lang. - Set language.

4 Return to the measurement menu with key .

(with touchscreen only)

1 Switch on control unit.

2 Change to the main menu with key .

3 From Main menu - Periphery - Touchscreen – Calibrate

touchscreen.

4 Return to the measurement menu with key .

Measurement menu

CCaall..

The use of a probe preliminary filter is obligatory for
measuring solid fuels:
For 335mm probe: 0440 7435
For 700mm probe: 0440 7436

1 Connect analyser box and control unit; switch on control

unit.
2 Go to main menu via .
3 Click on Main menu - Memory - Solid fuel measurement

and confirm with .
4 Specify “Length of time” using the arrow buttons. Confirm

value via and proceed to

“CO range” menu.
5 Set required measuring range and confirm via

button.
6 Information on values entered.
7 Start measurement by clicking on .

Mean calculation stops once the specified length of time has
elapsed.

Note:

If you wish to use the default values (duration: 15min.,
measuring range: CO High), you can also select “Info”
directly in the “Solid fuel measurement” menu and start the
measurement.

SS tt aa rrtt

EE nn dd

72

Solid fuel measurement option

for analyser box

Measurement menu

Main menu

Info

Selecting solid fuel

measurement

Measurement menu

Solid fuel measurement

is activated

Specify length of time

Measurement stops

automatically

Start measurement

Fresh air

Measurement

2 min.

Set CO range

EE nn dd

SS tt aa rrtt

73

Solid fuel measurement option

for analyser box

Notes:

The given measuring ranges are recommendations to
achieve the highest possible accuracy. Higher deviation is to
be expected outside these measuring ranges.

Note: The toxic sensors may be damaged if CO
concentrations are greater than 40 000 ppm. Remove the
toxic sensors during applications of this kind in order to
prevent the sensors from being damaged. Measurements
can be carried out in this range using the O2 sensor.

CO`s lower explosion limit is reached if CO concentrations of
more than 10.8 % (108 000 ppm) come into contact with air.

The lower explosion limit is significantly lower in combusion
processes such as wood combustion due to the nonburned
hydrocarbons and hydrogen.

CO measuring ranges with CO Low or CO High

CO meas. CO concentration Measuring range CO Accuracy

range in sensor (ppm) (ppm)

from........to from........to

Low

1

0 1000 00 1000 See Technical data

High

2

50 1500 1000 30000 ± 7.5 % of read.

1

corresponds to: undiluted

2

corresponds to: 20xdilution

74

Main menu Sensors

for analyser box

Sensors

R

ECALIBRATION

1 Connect analyser box to control unit; switch on control

unit.

2 Change to the main menu with key .

3 From Main menu - Sensors – to menu “Recalibration”

4 With key , select the parameter and activate

with key .

5 With the cursor keys select numbers

in the numeric block and confirm with key .

6 Accept entered value with .

7 The newly entered CO or NO value is displayed.

8 Return to the measurement menu with key .

Measurement menu

Select “Sensors”

Select “Recal.”

Enter parameter

value

Recalibration resultSelect number

Confirm selection

SS tt aa rrtt

SS tt aa rrtt

Measurement menu

Select parameter

75

Main menu Sensors

for analyser box

Measurement

menu

Measurement

menu

NO2 ADDITION

1 Connect analyser box to control unit; switch on control

unit.

2 Change to the main menu with key .

3 From Main menu – Sensors – to menu “NO2 addition”

4 With the cursor keys select numbers

in the numeric block and confirm with key .

5 Accept entered value with .

6 Return to the measurement menu with key .

Measurement menu

Select “Sensors”

Select “NO2

addition”

Enter NO2 addition

Select

number

Confirm

selection

EE nn dd

PRINT CALIBRATION DATA

1 Connect analyser box to control unit; switch on control

unit.

2 Change to the main menu with key .

3 From Main menu – Sensors – to menu “Print cal. data”

4 Start print with key .

5 Return to the measurement menu with key .

Note

Ausdruck abbrechen mit Taste .

EE nn dd

Measurement menu

Select “Sensors”

Select ”Print cal.

data

76

Main menu Input

for analyser box

Spot number / Oil derivative / Heat carrier temperature

Note:

Enter spot number and oil drivatives only for oil fuels and
propane.

1 Connect analyse box to control unit; switch on control

unit.

2 Change to main menu with key .

3 From Main menu - Input – Smoke number/WTT (HCT)

- Smoke number 1 – enter value

- Smoke number 2 – enter value

- Smoke number 3 – enter value

- Heat carrier temp. - enter value

With the cursor keys select numbers

in the numeric block and confirm with key .

4 Accept the respectively entered value with function key

.

5 When the heat carrier temperature has been entered and

confirmed, an automatic branch is made to the “Oil

derivative” menu.

6 Select “Oil derivative?”, “No / Yes”. Branch to the “Info”

menu with functional key .

7 Return to the measurement menu with key .

Select the menu

Enter
“Smoke number 1”
“Smoke number 2”
“Smoke number 3”

“Heat carrier temp.”

Oil derivative no/yes

Set comes into

effect

EE nn dd

Accept the settings

OO KK

Measurement menu

Select “Input”

Select “Spot (smoke) number/ WTT”

Select number

Confirm selection

EE nn dd

Display info

Measurement menu

77

E

XAMPLE:

Set “Light oil”

1 Connect analyser box to control unit; switch on control

unit.

2 During the zeroing phase, the menu

“Select fuel” is automatically activated.

3 Select “Light oil” with keys .

4 With key return to the zeroing phase or the

measurement menu.

Fuel

O2 reference, CO2max and coefficient

Main menu Input

for analyser box

Measurement menu

Zeroing phase

Zeroing phase

or

“Select Light oil”

3 sec

Available fuels and their factors

* These factory adjusted values can be freely selected.

A2, B fuel-specific factors
F

Br

conversion factor mg/m3in g/GJ

The O2 reference index, CO2 max. and all factors for freely
defined fuels.

The coefficients A2, B are only adjustable for the freely
definable fuels “Fuel 1 and 2”. “Coeff” appears in the menu
when “Fuel 1 or 2” is selected.

Fuel A2 B f CO

2max

*O2ref.* F

Br

Fuel oil, light 0.68 0.007 0.68 15.4* 3* 0.2637
Fuel oil, heavy 0.61 - 0.61 15.9* 3* 0.2616
Natural gas 0.66 0.009 0.66 11.9* 3* 0.2665
Propane 0.63 0.008 0.63 13.7* 3* 0.2613
Anthracite 0,74 - 0.74 20.5* 8* 0.2640
Coal briquettes 0,75 - 0.75 18.9* 8* 0.2748
Wood fuels, coke 0.74 - 0.74 20.3* 13* 0.1885
Brown coal, peat 0.90 - 0.90 19.8* 8* 0.2647
Coking gas 0.60 0.011 0.60 10.3* 3* 0.2461
Urban gas 0.63 0.011 0.63 13.6* 3* 0.2418
Fuel 1 0* 0* 0* 0* 0*
Fuel 2 0* 0* 0* 0* 0*

78

Main menu Input

for analyser box

Select “Light oil”

Select

“O2ref./CO2max”

Select “O2ref.”

Enter “O2ref.” for

Light oil

Enter CO2max for

Light oil

Zeroing phase

3 sec

Measurement menu

EE nn dd

EE nn dd

EXAMPLE

“Light oil” is selected.

1 Connect analyser box to control unit; switch on control

unit.

2 During the zeroing phase, the menu “Select fuel” is

automatically activated.

3 Activate “Light oil” with keys .

4 With key , change to menu “Select fuel”

and with key , select menu “O2ref/CO2max”.

5 With , select “Input O2ref.” and confirm with .

6 With the cursor keys select numbers

in the numeric block.

7 With , accept value and change to menu

“CO2max”.

8 With the cursor keys select numbers

in the numeric block.

9 With and , back to the measurement

menu.

EE nn dd

EE nn dd

79

Main menu Input

for analyser box

Zeroing phase

Select “Input”

3 sec

2 x

Parameters

P

RESSURE

Note

The absolute pressure is determined in the measuring
procedure depicted to the side. The absolute pressure
results from

• Altitude pressure (metres above sea level)

This has an annual average at sea level of 1013 mbar. The
higher the location is above sea level, the lower the
pressure.

• Barometric pressure

This has an annual average independent of the altitude
1013 mbar. This pressure can fluctuate from the annual
average by approx. ±20 mbar depending on the weather
(see local barometer display).

• Differential pressure

This is the higher or lower pressure in the duct.

The entry of the absolute pressure (in hPa only; it is
impossible to switch to other units) has an effect on the
pressure-dependent measurement values. These are
automatically compensated by the pressure: for humidity
(g/kg, J/g), CO2 and in all thermal probes!

Enter the pressure as a parameter:

1 Connect the probe. Connect analyser box to control unit;

switch on control unit.

2 Change to the main menu with key .

3 From Main menu – Input – Parameter – select Abs.

pressure menu.

4 Accept the current reading with key or enter

“Absolute pressure” with the cursor keys.

5 With function key , an automatic branch is made

to the menu “Set pitot tube factor” or with key back
to the measurement menu.

Enter the absolute pressure

Select “Absolute”

or

EE nn dd

Current reading

comes into effect

Set menu: ”Pitot

tube factor”

EE nn dd

Select “Parameter”

Select “Pres.”

80

P

ITOT TUBE FACTOR

Note

The pitot tube factor of the standard Testo pitot tubes
equals 1.00 and need not be changed. Enter the factor 0.67
for the straight testo pitot tubes. For other pitot tubes, ask
the supplier for the pitot tube factor and store.

Enter the pitot tube factor as a parameter:

1 Connect the probe. Connect analyser box to control unit;

switch on control unit.

2 Change to the main menu with key .

3 From Main menu – Input – Parameter – select “Pitot

factor” menu.

4 Accept the current reading with key or select

“Set pitot tube factor” with the cursor keys.

5 With function key , an automatic branch is made

to the menu “Circle - Cross section” or with key ,
back to the measurement menu.

EE nn dd

EE nn dd

Select “Pitot factor”

Enter the pitot tube

factor

Main menu Input

for analyser box

Zeroing phase

Select “Input”

3 sec

2 x

Select “Parameter”

Menu “Set cross-

section”

EE nn dd

81

Main menu Input

for analyser box

Zeroing phase

Select input

3 sec

2 x

Select “Parameter”

CROSS SECTION

Enter the cross section as a parameter:

1 Connect the probe. Connect analyser box to control unit;

switch on control unit.

2 Change to the main menu with key .

3 From Main menu – Input – Parameter – select “Cross

section” menu.

4 Enter duct diameter:

- Press key.

- Circle – input value

- Square – input value

- Rectangle – input value

- Length a – input value

- Length b – input value

- Area – input value

5 With function key , accept the respectively

entered value and automatically branch to menu “Set
offset factor” or back to the measurement menu with
key .

Select “Cross

section”

Accept the respectively

set value and branch to

menu “Set offset factor”

EE nn dd

Select “Circle”,

“Square”,

“Rectangle”, “Area”

Enter value for

“Circle”, “Square”,

“Rectangle”,

“Area”

End

82

Main menu Input

for analyser box

Measurement menu

Select input

Activate “Parameter”

Select “Offset factor”

Set “Offset factor”

Accept the set

value

EE nn dd

OFFSET FACTOR

1 Connect probe, switch on control unit.

2 Change to the main menu with key .

3 From Main menu – Input – Parameter – select “Offset.

factor” menu.

4 Accept the current value with key or select

“Set Offset factor” with the cursor keys.

5 Return to the measurement menu with key .

Offset factor calculation

v = k

y s y

k = Offset factor
s = Pitot tube factor
p = Pressure (Pa)
rho = Density (kg/m

3

)

2p

rho

EE nn dd

83

Main menu Input

for analyser box

Info display

Select “Info”

Measurement menu

INFO

Overview of all parameters.

1 Change to the main menu with key .

2 From Main menu – Input – Parameter – select the “Info”

menu.

3 Return to the measurement menu with key .

Zeroing phase

Main menu

3 sec

2 x

Select “Parameter”

Dew point/ambient air (AT)

1 Connect humidity probe to control unit. Connect analyser

box to control unit; switch on control unit.

2 Change to the main menu with key .

3 From Main menu – Input – Dew point/ambient air – select

the “Temperature/ambient air” menu.

4 With the cursor keys , enter the

temperature reading or accept the current reading with
function key .

5 Function key branches automatically

to menu “Humidity/ambient air”.

6 Enter the numbers as described in item 4.

7 Function key branches automatically

to menu “Dew point/ambient air”.

8 Automatic display of the dew point in the input box.

With function key , the value is accepted.

9 Return to the measurement menu with key .

84

Main menu Input

for analyser box

Zeroing phase

Select Input

3 sec

2 x

Select “Dew point/ambient air”

Activate

“Temperature/ambient air”

Enter AT

temperature

EE nn dd

EE nn dd

EE nn dd

Enter AT humidity

Display AT dew point

Measurement menu

Select number

Confirm selection

EE nn dd

EE nn dd

EE nn dd

85

View

The display sequence of the readings is defined in this
menu. The sequence can be freely selected.

Example:
The first empty display box is occupied by the reading “Flue
gas temperature”.

1 Connect analyser box to control unit; switch on control

unit.

2 Change to the main menu with key .

3 From Main menu – Device – View – Display seq. menu

4 With the function keys , find an empty

reading space.

5 With the cursor keys , assign the

reading space.

6 With , open the window P

ARAMETER, UNIT, INSERT,

D

ELETE and activate menu “Parameter”.

Note

“Insert” menu
Parameters can be inserted at any desired reading space.
The existing values are shifted by one space.

“Delete” menu
Deletes selected parameters.

7 Select AT parameter with keys and confirm with

.

Available parameters:
O

2

CO NO H

2

NOx FT AT dT
T1 T2 qA CO

2

l h uCo Soot
OILD HC.T O

2

rf CO2M
Draught Accu DT F/h
Pump DP Fuel

Main menu Device

for analyser box

Zeroing phase

Main menu

3 sec

2 x

Select “Device”

Activate “View”

Display sequence

8 Automatic branch to menu “Unit”.

Note

If a parameter is selected, a matching unit is automatically
presented. This suggestion can be changed.

9 With key , the parameter is accepted.

10 Return to the parameter menu with function key

.

EE nn dd

86

Main menu Device

for analyser box

Assign empty reading

space

Select “Parameter”

Select “AT”

Select “Unit”

Accept the new

parameter

EE nn dd

Diagnostic

Displays all unrectified error messages.

Find empty reading

space

Measurement menu

87

Main menu Service

for analyser box

Operating values

Display operating

values

1 Connect analyser box to control unit; switch on control

unit.

2 Change to the main menu with key .

3 From Main menu - Service – “Op. values” menu.

4 Return to the measurement menu with key .

Select “Service”

Select “Op. values”

Measurement menu

Zeroing phase

Main menu

3 sec

2 x

Switching off CO/NO/NO

2

1 Connect analyser box to control unit; switch on control

unit.

2 Change to the main menu with key .

3 From Main menu – Service – Switch-off.

4 With key , select menu “CO”, ”NO” or “NO

2

”.

5 With the cursor keys select numbers

in the numeric block and confirm with key .

6 Accept entered value with .

7 Return to the measurement menu with key .

88

Main menu Service

for analyser box

Select number

Confirm selection

EE nn dd

EE nn dd

Zeroing phase

Main menu

3 sec

2 x

Select “Service”

Select “Switch-off”

Activate “CO”, “NO”

or ”NO

2”

Enter CO, NO or

NO

2 value

Measurement menu

89

Main menu Service

for analyser box

Select number

Measurement menu

EE nn dd

Confirm selection

Device data

Display device data

Enter bus address

1 Connect analyser box to control unit; switch on control

unit.

2 Change to the main menu with key .

3 From Main menu - Service – Device data menu

4 Return to the measurement menu with key .

Select “Service”

Select

“Device data”

Measurement menu

Zeroing phase

Main menu

3 sec

2 x

Select “Service”

Select “Bus address”

Zeroing phase

Main menu

3 sec

2 x

Bus address

1 Connect analyser box to control unit; switch on control

unit.

2 Change to the main menu with key .

3 From Main menu - Service – Bus Address – Change Bus

Address

4 With the cursor keys , select a

number on the numeric block and confirm with key .
Possible numeric combinations: 01 - 99.

5 Accept entered value with . Automatic

branch to the main menu.

The control unit and analyser box are factory adjusted to
different bus address numbers.

If these are equivalent, the bus address number of the
control unit or the analyser box must be changed to prevent
connection problems.

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90

Maintenance

Inserting new paper roll in printer

Function menu

Select paper feed (LF

Pr).

Measurement menu

LL FF PPrr

1 sec

Measurement menu

Paper roll feed

1 Activate the function menu with the key and one of

the function keys. Select the function key
with and confirm with .

2 Open printer cover and remove plastic roller.

3 Insert a suitable paper roll. Observe paper guide: the

coated side of the thermal paper must point towards the
printer head after threading in.

4 Press function key . The paper is drawn in.

5 Close cover.

LF Pr

LF Pr

91

Maintenance

Changing the battery pack

Analyser box

Rear

1 Disconnect mains unit

2 Disengage catch.

3 Remove battery pack and pull plug from socket after

disengaging.

4 Insert new battery pack (ensure that the plug engages).

5 Put on and close cover.

Control unit

Rear

1 Pull off mains adapter.

2 Disengage catch.

3 Remove battery pack and pull plug from socket.

4 Insert new battery pack (adhere to marking on plug when

inserting)

5 Put on and close cover.

92

Maintenance

Filter change

1. If the filter is visibly contaminated, it must be replaced
under all circumstances.

2. Replace the filter if the pump performance drops
(audibly).

In most cases, it is sufficient to replace the flue gas filter.

- To replace a filter, remove the filter cover by twisting to the

left.

- Take out the used filter and insert the new filter.

- Screw on the filter cover.

- The cross strut of the filter housing must be aligned with

the markings on the box housing.

Spare filters with Part no. 0554.3381 available.

Condensation trap

To be observed

- Only empty the condensation trap when the pump is
switched off.

- Do not damage the sealing rings when assembling the
condensation trap.

- Pull out the condensation trap horizontally to empty the
condensation.

- Open the drain plug.

Filter, flue gas

Filter, fresh
air inlet

Filter, diluting air

Condensation
tank

Drain plug

Filter housing

Cross strut

Remove
condensation
tank

93

Maintenance

Flue gas probe

Cleaning the flue gas probe

If the flue gas is heavily laden with dust, it is possible that
sections of the gas path preceding the hose filter will
become contaminated or blocked.

Cleaning the flue gas probe with gas path closed

Pull off the probe shaft, place and move about in hot water.
Then blow out with air or clean with a round brush (e.g.
brass).

Changing a defective thermocouple

Pull the bend protection spring of the rear outlet from the
guide by twisting to the left and remove the left hose. Pull
out the thermocouple by the cable.

Remove the bend protection spring and remove the cable
from the slotted hose.

When inserting a new thermocouple, do not crush the
thermocouple cable; push in fully using a small screwdriver.

Remove the thermocouple only if defective.

O2, CO, NO2 and NO measuring cell replacement

- Switch off the device and isolate from the mains.

- Open the large cover on the rear of the measuring box.

- Remove measuring cell heater.

- Pull the hose connections from the used cell.

- Remove the measuring cell from the device.

- Insert and connect a new measuring cell.

Caution!

Remove the auxiliary circuit board before installing

the NO cell.

Caution!

The O2 measuring cell requires a compensation

period of approx. 60 min. after replacement in the

testo 300 XXL. Only then can accurate measure-

ments be made. The device must not be switched on

while doing this.

Installation of an NO measuring cell

Installation of CO / NO2 measuring cell

NO measur-

ing cell

Measuring

cell

Auxiliary

circuit board

Short-circuit bridge

ÏÏ

ÏÏ

Caution!

Remove the short-circuit bridge when

installing a new measuring cell.

Measuring cells

Measuring cell heater

94

Maintenance

95

Disconnect the mains plug prior to maintenance.

Maintenance

Maintenance of the gas pumps

Opening the analyser box

1. Switch off the device and pull the mains plug..

2. Remove the condensation trap.

3. Unlock the three filter housings.

4. Loosen the 8 Philips screws in the lower part of the
device housing.

5. Turn the device back over and remove the upper part of
the device housing.

Cleaning the main gas pump and the purging pump

1. Remove Philips screw from the plastic pump bracket.

2. Push the plastic bracket gently aside.

3. Pull out the pump carefully.

4. Take the pump tool from the holder in the handle.

5. Push the pump tool into the guides of the pump head.

6. Remove the pump tool from the pump head.

7. Remove the diaphragm holder from the pump head

and remove the diaphragm.

8. Clean the pump diaphragm, pump cup and pump head

with spirit or water.

9. Insert the diaphragm in the diaphragm holder and place

in the pump head.

10. Place pump head on the pump.

11. Remove pump tool.

12. Insert pump in the installation block.

13. Replace the pump in the gas measuring block and

fasten the pump with Philips screws to the plastic
pump bracket.

14. Put on the upper part of the housing. Ensure that no

cables are trapped.

15. Turn the device over and tighten the 8 Philips screws.

16. Install the filter housing and condensation trap.

Screws Screws

Main gas pump

Purging pump

Pump

tool

Pump
(Part. no.

0239.0014)

Pump cup

Pump head

Pump tool

Pump tool
(art. no.

0192.0468)

Diaphragms
(Part. no.

0193.0072)

Diaphragm
holder

96

Maintenance

Maintenance of the gas pumps

Cleaining the main gas pump with the gas preparation
option

1. Remove Philips screw from the plastic pump bracket.

2. Push the plastic bracket gently aside.

3. Pull the gas pump upwards out of the gas measuring
block.

4. Loosen the 4 fastening screws in the pump head of the
main gas pump.

5. Pull off the pump head.

6. Remove the two circlips from the depressions of the
pump head (front and rear).

7. Remove and clean the pump diaphragms (water or
spirit).

8. If necessary, blow through the inlet and outlet pipes
with compressed air.

9. Reattach the diaphragms with the circlips.

10. Attach the pump head to the main gas pump and
fasten with the screws.

11. Replace the pump in the gas measuring block and
fasten the pump with Philips screws to the plastic
pump bracket.

12. Put on the upper part of the housing. Ensure that no
cables are trapped.

13. Turn the device over and tighten the 8 Philips screws.

14. Install the filter housing and condensation trap.

Main gas pump

Purging pump

Main gas
pump

Fastening
screws

Pump head

97

Maintenance

Changing the pump cassette of the condensation pump with optional gas

preparation

1. Empty the condensation trap.

2. Remove the cover.

3. Unlock and pull off the pump cassette.

4. Remove the bend protection spring and push onto the
hose of the inlet of the new pump cassette.

5. Push on hoses.

Note

Ensure that the hoses are not trapped or constrained.

6. Push the replacement cassette onto the motor shaft
until it engages.

7. Attach cover.

unlock

Inlet

Outlet

98

Maintenance

Upgrades

1. Switch off the device.

2. Open the measuring cell cover.

Upgrade modules are connected at one of the empty

slots. The measuring modules NO and HC must only

be inserted at the slots marked “NO” and “Type A/HC”

– observe switch settings. Connect the measuring

modules NO

2, SO2, H2S at any desired slot marked

“Type A” (see label in the measuring cell cover).

3. Remove the hose connector and plastic adapter of an

empty slot.

4. Push on the extension module.

5. Connect the hose connector to the gas hose nipple of

the extension module.

6. Install the cell heater on the extension module.

7. Close the measuring cell cover.

8. Switch on the device with the control unit or using the

control software.

9. Insert the added parameter to the display sequence.

Heater measurement cell

Hose
connector

Plastic
adapter

99a

German calculation information

The following equations were used to calculate the following values:

CO

2max x (21% - O2%) CO2max : fuel-specific maximum

CO

2 value: CO2 = CO2 value

21% 21 % : oxygen content of the air in %

O

2 % : measured oxygen content

in %

A2 FT : flue gas temperature

Flue gas loss: qA = (FT-AT) + B - K

K

AT : ambient (combustion) temp.

(21 - O

2) A2/B : fuel-specific factors

21 : oxygen content of the air
O

2 : measured oxygen content

K

K

: is a factor which qA produces

as a negative value when the
temperature is not reached.
Required for measurement of fuel
value systems.

If the fuel-specific factors A2 and B are equal to zero, the Siegert equation is used, applying the factor f.

(FT - AT) FT : flue gas temperature

qA = f x AT : ambient (combustion) temp.

CO

2 CO2 : calculated CO2 value

f : fuel-specific factor

Technical
combustion
efficiency: Eta = 100 - qA If qA is negative, Eta becomes greater than

100%.

Excess air CO

2max CO2max : fuel-specific

index λ: λ = maximum CO

2

value

CO

2 CO2 : calculated CO

2

value

f : fuel-specific factor

NOx: NOx = NO + NO

add x NO NOadd : NO2 addition factor

Please refer to page 77

UK calculation information

Conversion of ppm to mg/m3referred to the O2reference value
(freely selectable according to fuel)

CO (mg/m

3

) CO = x CO (ppm) x 1.25

0

2 set

: Oxygen content in the air

O

2

: Measured oxygen content

NO

x

(mg/m3) NOx= x NO (ppm) x 1 + x 2.05

0

2 set

: Oxygen content in the air

O

2

: Measured oxygen content

Conversion of ppm to g/GJ

CO (g/GJ) CO= x CO (ppm) x FBr x 1.25

NO

x

(g/GJ) NOx=x NO

x

(ppm) x FBr x 2.05

Conversion of (ppm) to mg / kWh

CO (mg/kWh) CO= x CO (ppm) x FBr x 3.6 x 1.25

NO

x

(mg/kWh) NOx=x NO

x

(ppm) x FBr x 3.6 x 2.05

FBr See “Fuel selection”

0

2 set

- O2ref

(0

2 set-O2

)

0

2 set

- O2ref

(0

2 set-O2

)

NO-add

100

Fitted only
with NO:

0

2 set

0

2 set-02 meas.

0

2 set

0

2 set-02 meas.

0

2 set

0

2 set-02 meas.

0

2 set

0

2 set-02 meas.

99b