TESTO 335 Instruction Manual

Instruction manual en

testo 335

Flue gas analyser

General notes

Please read this documentation through carefully and familiarise yourself with the opera­tion of the product before putting it to use. Keep this document to hand so that you can
refer to it when necessary.

This document describes the country-specific version GBof the testo 335 measuring
instrument.

Identification

Symbol Meaning Comments

Warning advice: Warning! Read the warning advice carefully and
Serious physical injury could be caused if the specified take the specified precautionary measures!
precautionary measures are not taken.

Warning advice: Caution! Read the warning advice carefully and
Slight physical injury or damage to equipment could take the specified precautionary measures!
occur if the specified precautionary measures are not
taken.

Important note. Please take particular notice.

Tex t Text appears on the instrument's display -

Key Press the key.
Function key with the function “OK”. Press function key.

 xyz Short form for operating steps. See

Short form

,p.3.

OK

General notes

2

Short form

This document uses a short form for describing steps
(e.g. calling up a function).

Example: Calling up the

Flue gas function

Short form: 

Measurements Flue gas 

(1) (2) (3) (4) (5)
Steps required:
1

Open the Main menu: .

2

Select

Measurements menu: , .

3

Confirm selection: .

4

Select

Flue gas menu: , .

5

Confirm selection: .

OK

OK

OKOK

General notes

3

Content

See also

Functional overview

, p. 60.

General notes ........................................................................................2

Content ..................................................................................................4

A. Safety advice..........................................................................................7

B. Intended purpose ..................................................................................8

C. Product description ..............................................................................9

C.1 Measuring instrument ....................................................................9

C.1.1 Overview ....................................................................................9

C.1.2 Keypad ....................................................................................10

C.1.3 Display......................................................................................10

C.1.4 Instrument connections ............................................................11

C.1.5 Interfaces..................................................................................12

C.1.6 Components ............................................................................12

C.1.7 Carrying strap ..........................................................................13

C.2 Modular flue gas probe ................................................................13

D. Commissioning ....................................................................................14

E. Operation ..............................................................................................15

E.1 Mains unit/rechargeable battery....................................................15

E.1.1 Changing the battery ................................................................15

E.1.2 Charging batteries ....................................................................16

E.1.3 Operation with the mains unit....................................................16

E.2 Probes/sensors ............................................................................17

E.2.1 Connecting probes/sensors......................................................17

E.2.2 Replacing the probe module ....................................................18

E.3 Regular care ................................................................................18

E.3.1 Condensate trap ......................................................................18

E.3.2 Checking/replacing the particle filter..........................................19

Content

4

E.4 Basic operating steps ..................................................................20

E.4.1 Switching the measuring instrument on ....................................20

E.4.2 Calling up the function ............................................................20

E.4.3 Entering values ........................................................................21

E.4.4 Printing data ............................................................................22

E.4.5 Saving data ..............................................................................22

E.4.6 Confirming an error message ....................................................22

E.4.7 Switching the measuring instrument off ....................................22

E.5 Memory ........................................................................................23

E.5.1 Folders......................................................................................23

E.5.2 Location....................................................................................24

E.5.3 Protocols ..................................................................................26

E.5.4 Extras Memory..........................................................................26

E.6 Instrument diagnosis ....................................................................27

F. Configuration........................................................................................28

F.1 Instrument settings ......................................................................28

F.1.1 Display edit ..............................................................................28

F.1.2 Printer ......................................................................................29

F.1.3 Start keys edit ..........................................................................30

F.1.4 AutoOff ....................................................................................30

F.1.5 Date / Time ..............................................................................31

F.1.6 Language..................................................................................31

F.2 Sensor settings ............................................................................32

F.3 Fuels ............................................................................................35

G. Measuring ............................................................................................36

G.1 Preparing measurements..............................................................36

G.1.1 Zeroing phases ........................................................................36

G.1.2 Using the modular flue gas probe..............................................37

G.1.3 Configuring the reading display ................................................37

G.2 Measurements..............................................................................38

G.2.1 Flue gas, Flue gas + m/s, Flue gas + ∆p2 ................................38

G.2.2 Program....................................................................................39

G.2.3 Draught ....................................................................................40

G.2.4 Smoke# /HCT ..........................................................................41

G.2.5 Gas flow rate ............................................................................41

G.2.6 Oil flow rate ..............................................................................42

G.2.7 m/s ..........................................................................................42

G.2.8 ∆p2 ..........................................................................................43

G.2.9 Burner control ..........................................................................44

Content

5

H. Transferring data..................................................................................46

H.1 Protocol printer ............................................................................46

H.2 PC / Pocket PC............................................................................46

I. Care and maintenance ........................................................................47

I.1 Cleaning the measuring instrument ..............................................47

I.2 Replacing measuring cells ............................................................47

I.3 Recalibrating measuring cells........................................................48

I.4 Replacing additional filter ..............................................................48

I.5 Cleaning the modular flue gas probe ............................................49

I.6 Replacing probe preliminary filter ..................................................49

I.7 Replacing thermocouple ..............................................................49

J. Questions and answers ......................................................................50

K. Technical data ......................................................................................51

K.1 Standards and tests ....................................................................51

K.2 Measuring ranges and accuracies ................................................51

K.3 Other instrument data ..................................................................53

K.4 Principles of calculation ................................................................54

K.4.1 Fuel parameters ........................................................................54

K.4.2 Calculation formulae..................................................................54

K.5 Recommended rinsing times ........................................................57

L. Accessories/spare parts......................................................................58

Functional overview ............................................................................60

Content

6

A. Safety advice

Avoid electrical hazards:

Never use the measuring instrument and probes to measure on or near live parts!

Protect the measuring instrument:

Never store the measuring instrument/measuring cells together with solvents
(e.g. acetone). Do not use any desiccants.

Product safety/preserving warranty claims:

Operate the measuring instrument only within the parameters specified in the Techni­cal data.

Handle the measuring instrument properly and according to its intended purpose.
Never apply force!
Temperatures given on probes/sensors relate only to the measuring range of the

sensors. Do not expose handles and feed lines to any temperatures in excess of
70 °C unless they are expressly permitted for higher temperatures.

Open the measuring instrument only when this is expressly described in the instruc­tion manual for maintenance purposes.

Carry out only the maintenance and repair work that is described in the instruction
manual. Follow the prescribed steps exactly. For safety reasons, use only original
spare parts from Testo.

Any additional work must only be carried out by authorised personnel. Testo will
otherwise refuse to accept responsibility for the proper functioning of the measuring
instrument after repair and for the validity of certifications.

Ensure correct disposal:

Dispose of defective rechargeable batteries and spent batteries at the collection
points provided for that purpose.

Send the measuring instrument directly to us at the end of its useful life. We will
ensure that it is disposed of in an environmentally friendly manner.

A. Safety advice

7

B. Intended purpose

This chapter describes the areas of application for which the measuring instrument is
intended.

The testo 335 is a handheld measuring instrument used in professional flue gas analysis
for:

· Engineers servicing/monitoring industrial combustion plants (process systems, power
stations)

· Emissions inspectors

· Engine manufacturers and operators

· Service engineers/mechanics of burner/boiler manufacturers in the industrial sector

Typical measuring tasks and particular characteristics of the testo 335 include:

· Measurement on engines of all kinds (CO/NO dilution)

· Measurement on gas turbines (high precision CO and NO plus optional dilution)

· Emissions measurement (integrated flow speed and real moisture content
measurement)

testo 333 should not be used:

· for continuous measurements

· as a safety (alarm) instrument

B. Intended purpose

8

C. Product description

This chapter provides an overview of the individual components of the product.

C.1 Measuring instrument

C.1.1 Overview

 On/Off button
 Interfaces: USB, PS2, infrared

Do not point infrared beam at
people's eyes!

 Condensate trap (on rear)
 Fixing eyelet for carrying strap (left and

right)

 Display
 Magnetic holders (on rear)

Strong magnets
Damage tto oother iinstruments!

Keep well away from
products which could be
damaged through the
effects of magnetism (e.g.
monitors, computers, heart
pacemakers, credit cards).

 Keypad
 Service cover (on rear)
 Gas outlet
 Instrument connections: flue gas probe,

sensor, pressure probe, mains unit

Placeholder:
Pbersicht.tif

C. Product description

C.1 Measuring instrument

9





















C.1.2 Keypad

Key Functions

Switch measuring instrument on/off

Function key (orange, 3x), relevant function is shown on the display

Scroll up, increase value

Scroll down, reduce value

Back, cancel function

Open Main menu: press briefly (changed settigs are stored, measurement values are carried over into the menu
Flue gas); open Measurements menu: press and hold down for 2s (changed settigs are stored, measurement
values are carried over into the menu Flue gas)

Open Inst’ diagnosis menu

Change display light: display light stays on permanently or display light is switched on for 10s every time the key
is pressed.

C.1.3 Display

Depending on the menu that is active, the display shows a variety of elements.

Header (active in all views)

 Warning symbol (only if there is a device error;

device errors are displayed in the

Inst’ diagnosis menu).

 Active folder and location.
 Power supply symbol:

Symbol Characteristic Symbol Characteristic

Mains operation Rech. battery operation, capacity: 26-50%
Rech. battery operation, capacity: 76-100% Rech. battery operation, capacity: 6-25%
Rech. battery operation, capacity: 51-75% Rech. battery operation, capacity: 0-5%

Function select view

 Active menu, activated fuel
 Function selection field:

The selected function has a grey background.
Unavailable functions are written in grey type

 Scroll bar
 Function keys for entering commands

C. Product description
C.1 Measuring instrument

10











Settings view

 Active menu
 Function fields for entering commands
 Scroll bar
 Selection field for adjustable values:

The selected value is shown with a grey
background. Unavailable values are written in grey
type.

 Function keys for entering commands

Measuring view

 Active menu, depending on the selected function:

Additional information (e.g. activated fuel, date and
time)

 Scroll bar
 Display field for readings, parameters
 Function keys for entering commands

C.1.4 Instrument connections

 Sensor socket
 Flue gas socket
 Mains unit socket
 Pressure socket p+ (can only be used with the

option "Pressure/flow speed measurement")

 Pressure socket p- (can only be used with the

option "Pressure/flow speed measurement")

C. Product description

C.1 Measuring instrument

11















 









C.1.5 Interfaces

 USB interface:

connection to PC

 PS2 interface:

Adapter for automatic furnaces

 Infrared interface (IrDA):

connection to Testo-printers/Pocket PC

C.1.6 Components

 Rechargeable battery
 Measuring gas pump
 Measuring cells - slot 2: CO, NO2, SO2
 Measuring cells - slot 1: O2
 Measuring cells - slot 3: NO, SO2
 Additional filter

C. Product description
C.1 Measuring instrument

12













 

C.1.7 Carrying strap

To secure the carrying strap:

1

Remove sealing caps from the sides of the

housing.
Fix ssealing ccaps oon tthe iinside oof tthe sservice ccover:
1 Place the measuring instrument on its front.
2 Pick the service cover up at the markings

(arrows) using your index finger and thumb and

press gently to release the lock.
3 Lift the service cover up and remove.
4 Secure the sealing caps in the two holders on

the inside of the service cover ().
5 Fit the service cover and clip into place.

2

Engage the carrying strap clip in the fixing eyelets
on the side of the device. Note the guide groove.
The strap must point "down" (

).

C.2 Modular flue gas probe

 Removable filter chamber with window and particle

filter

 Probe handle
 Connecting lead
 Connecting plug for measuring instrument
 Probe module release
 Probe module

Placeholder:
Abgassonde.tif

Placeholder:
Halterung_Verschluss-

stopfen.tif
Tragegurt.tif

C. Product description

C.1 Measuring instrument

13

















D. Commissioning

This chapter describes the steps required to commission the product.

Remove the protective film from the display.

The measuring instrument is supplied with a rechargeable battery already fitted.

Charge the rechargeable battery up fully before using the measuring instrument
(see

Charging batteries

, p. 16).

D. Commissioning

14

E. Operation

This chapter describes the steps that have to be executed frequently when using the
product.

Please read this chapter carefully. The following chapters of this document will
assume you are already familiar with the content of this chapter.

E.1 Mains unit/rechargeable battery

If the mains unit is connected, the measuring instrument is automatically powered from
the mains unit. It is not possible to charge the rechargeable battery in the measuring
instrument during operation.

E.1.1 Changing the battery

The measuring instrument must not be connected to a mains socket via the mains
unit. The measuring instrument must be switched off. Change the rechargeable bat­tery within 60 minutes, otherwise instrument settings (e.g. date/time) will be lost.

1

Place the measuring instrument on its front.

2

Remove the service cover: Take hold of it at the
markings (arrows) using the index finger and
thumb, press slightly, fold up and remove.

3

Open the rechargeable battery compartment:
Press the orange key and push in the direction of
the arrow.

4

Remove the rechargeable battery and insert a new
one. Use only Testo 0515 0100 rechargeable bat­teries!

5

Close the rechargeable battery compartment:
Press the orange key and push against the direc­tion of the arrow until the rechargeable battery
engages.

6

Fit the service cover and clip into place.

E. Operation

E.1 Mains unit/rechargeable battery

15

E.1.2 Charging batteries

The rechargeable battery can only be charged at an ambient temperature of ±0...+35°C.
If the rechargeable battery has discharged completely, the charging time at room tem­perature is approx. 5-6 hrs.

Charging in the measuring instrument

The measuring instrument must be switched off.

1

Connect the plug of the mains unit to the mains unit socket on the measuring instru­ment.

2

Connect the mains plug of the mains unit to a mains socket.

- The charging process will start. The charge status will be shown on the display.
The charging process will stop automatically when the rechargeable battery is fully
charged.

Charging in the charger (0554 1087)

Refer to the documentation that comes with the charger.

Battery care

If possible, always discharge the rechargeable battery and recharge it fully.
Do not store the battery for long periods when discharged. (The best storage condi-

tions are at 50-80 % charge level and 10-20 °C ambient temperature; charge fully
before further use).

E.1.3 Operation with the mains unit

1

Connect the plug of the mains unit to the mains unit socket on the measuring instru­ment.

2

Connect the mains plug of the mains unit to a mains socket.

- The measuring instrument is powered via the mains unit.

- If the measuring instrument is switched off and a rechargeable battery is inserted, the
charging process will start automatically. Switching the measuring instrument on has
the effect of stopping rechargeable battery charging and the measuring instrument is
then powered via the mains unit.

E. Operation
E.1 Mains unit/rechargeable battery

16

E.2 Probes/sensors

E.2.1 Connecting probes/sensors

Sensor ssocket:
Sensor detection is carried out at the sensor socket during the activation process:
Always connect the sensors you need to the measuring instrument before switching
it on or switch the device on and then off again after a change of sensor so that the
correct sensor data are read into the measuring instrument.

Flue ggas ssocket:
Probe/sensor detection at the flue gas socket is carried out continuously. It is possi­ble to change the probe/sensor even while the measuring instrument is switched on.

Connecting flue gas probes

Plug the connector onto the flue gas socket and
lock by turning it clockwise gently (bayonet lock).

There must be no more than two extension leads
(0554 1201) between the measuring instrument
and the flue gas probe.

Connecting other sensors

Insert the connector of the sensor into the sensor
socket.

Connecting the pressure tube

Pressure sockets p+ and p- can only be used with
instruments offering the "Pressure/flow speed meas­urement" option.

Connect the pressure tube/tubes to the connect­ing nipple/nipples of the pressure socket(s).

B. Operation

E.2 Probes/sensors

17

E.2.2 Replacing the probe module

1

Press the key on the top of the probe handle and
remove the probe module.

2

Fit a new probe module and engage it in place.

E.3 Regular care

E.3.1 Condensate trap

The fill level of the condensate trap can be read from the markings on the trap. A warn­ing message is displayed if the level in the condensate trap reaches 90% ( , red flash­ing light).

Emptying the condensate trap

The condensate consists of a weak mix of acids. Avoid contact with the skin. Make
sure that the condensate does not run over the housing.

Condensate entering the gas path.
Damage tto tthe mmeasuring ccells aand fflue ggas ppump!

Do not empty the condensate trap while the flue gas pump is in
operation.

1

Hold the measuring instrument so that the
condensate outlet points up.

2

Open the condensate outlet of the condensate
trap: Push out approx. 5 mm to the stop (

).

3

Let the condensate run out into a sink (

).

4

Mop up any remaining drops on the condensate
outlet using a cloth.

5

Close the condensate outlet.

The condensate outlet must be completely closed
(marking), otherwise measuring errors could occur
if external air gets in.

Placeholder:
Kondensatfalle_oeffnen.tif
Kondensatfalle_leeren.tif

E. Operation
E.2 Probes/sensors

18





E.3.2 Checking/replacing the particle filter

Checking the particle filter:

Check the particle filter of the modular flue gas
probe for contamination at regular intervals: Check
visually by looking through the window of the filter
chamber.
Replace the filter if there are signs of contamination

Replacing the particle filter:

The filter chamber may contain condensate

1

Open the filter chamber by turning it gently
anticlockwise.

2

Remove the filter plate and replace it with a new
one (0554 3385).

3

Fit the filter chamber again and close it by turning it
gently clockwise.

E. Operation

E.3 Regular care

19

E.4 Basic operating steps

E.4.1 Switching the measuring instrument on

.

- The start screen is displayed (for about 5 s).

- Display light is switched on for 10 s.
Option:

To go directly to a measurement while the start screen is being displayed, press
the function key for the desired measurement. See also

Start keys edit

, p. 30.

- The

Measurements menu is opened.

-oor-

- If the power supply was interrupted for a longer period: the

Date/Time menu is

opened.

-oor-

- There is a device error: The

Error diagnosis is displayed.

E.4.2 Calling up the function

Functions which cannot be selected because the required sensor/probe is not con­nected are shown in grey type.

1

Select function: , .

- The selected function is shown with a grey background.

2

Confirm selection: .

- The selected function is opened.

OK

E. Operation
E.4 Basic operating steps

20

E.4.3 Entering values

Some functions require values (numbers, units, characters) to be entered. Depending
on the function that is selected, the values are entered via either a list field or an input
editor.

List field

1

Select the value to be changed (number, unit):

, .

2

Adjust the value: , .

3

Repeat steps 1and 2as required.

4

Confirm the input: .

5

Save the input:

OK Save input .

Input editor

1

Select value (character): , , , .

2

Accept the value: .

Options:

Switch between uppercase/lowercase letters:

A <=> a (not always available).

Delete character:

<=.

To position the cursor in the text: Select the text
input field: , and position the cursor:

,.

To delete character in front of the cursor:

.

3

Repeat steps 1and 2as required.

4

Save the input: OK Save input .

OK

Del

OK

OK

OK

E. Operation

E.4 Basic operating steps

21

E.4.4 Printing data

Data are printed out via the function key . The function is only available if a print­out is possible.
If data are to be transferred to a protocol printer via the infrared interface, the printer that
is to be used must be activated, see

Printer

, p. 29.

E.4.5 Saving data

Data are saved either via the function key or the function field OK Save input. The
functions are only available if saving is possible.

See also

Memory

, p. 23.

E.4.6 Confirming an error message

If an error occurs, an error message is shown in the display.

To confirm an error message: .

Errors which have occurred and have not yet been rectified are shown by a warning
symbol in the header ( ).

Messages for errors which have not yet been rectified can be viewed in the

Error diagno-

sis

menu, see

Instrument diagnosis

, p. 27.

E.4.7 Switching the measuring instrument off

Unsaved readings are lost when the measuring instrument is switched off.

.

- Possibly: The pump starts and the measuring cells are rinsed until the shutoff thresh­olds (O

2

>20%, other parameters <50ppm) are reached. Rinsing lasts no more than

2 minutes.

- The measuring instrument switches off.

OK

Save

Print

E. Operation
E.4 Basic operating steps

22

E.5 Memory

All readings are allocated to the location that is activated at the time and can be saved in
the Flue gas menus. Unsaved readings are lost when the measuring instrument is
switched off.

Folders and locations can be created (max. 100 folders, max. 10 locations per folder),
edited and activated and measurement protocols can be printed.
The special function

Extras memory can be used to display the remaining free memory

space. All protocols can be printed or deleted. The entire memory (folders and locations
incl. protocols) can also be cleared.

Calling up the function:



Memory  .

E.5.1 Folders

Creating a new folder:

Folders are given a unique identification via the folder number. A folder number can only
be allocated once. The folder number cannot be changed afterwards.

1

New Folder  .

2

Select

Folder Number  .

3

Enter values 

OK Save input .

4

Repeat steps 2and 3for the other criteria as required.

5

.

Ordering the folders list:

1

Folders list.

2

Select the order criterion: , , .

Restoring the folders list:

Order the list in the sequence in which the folders were created:

Restore list  .

Editing folders:

Select the folder.
Options:

Delete the folder: .
Edit the folder: .

Edit

Del

OK

Addr’NameFolder

OK

OK

change

OK

OK

E. Operation

E.5 Memory

23

E.5.2 Location

Creating a new location:

A location is always created in a folder.
1

Select the folder 

New location  .

2

Select the

Location name  .

3

Enter values 

OK Save input .

4

Repeat steps 2and 3for the other criteria accordingly.

5

OK Go to measurement or OK To location  .

Ordering the locations list:

1

Select the folder  .

2

Locations list  .

Activating a location:

Select the folder Select location  .

- The location is activated and the

Measurements menu is opened.

Restoring the locations list:

To arrange the list in the order in which the folders were created:
Select the folder 

Restore list  .

Delete a location:

1

Select the folder  .

2

Select the location  .

3

Select Delete site with data  .

Performing location settings:

For devices with the "Pressure/flow speed measurement" option:
For flow speed, air flow and mass flow to be measured correctly, the shape and surface

area of the cross-section must be set.
The parameters

Pitot factor and Offset factor influence the measurement of flow speed, air

flow and mass flow. The pitot factor depends on the type of pitot tube that is used.
The offset factor should be set at 1.00 for all standard applications.

OK

Edit

OK

OKOK

OKOK

OK

OK

OK

OK

Change

OKOK

E. Operation
E.5 Memory

24

For all instruments:
The parameters

Temp./amb. (ambient air temperature), Hum/amb. (ambient air humidity)

and

Dew p./amb. (ambient air dew point) influence calculation of the qA (Flue gas loss)

and DP (Flue gas dew point temperature). The parameters should be set to the factory
settings for all standard applications (Temp./amb.: 20.0 °C, Hum/amb.: 80.0 %, Dew
p./amb.: 16.4 °C). To achieve greater accuracy, the values can be adjusted to the actual
ambient conditions.

If the ambient air temperature sensor is plugged in, the value for Temp./amb. is accept­ed automatically. The parameter

Dew p./amb. can be calculated from the values of

Temp./amb. and Hum/amb. via the function key .

1

Select the folder  .

2

Select the location  .
Options:

To set the shape of the cross-section:

Cross section Select the cross-section  .

To set the surface area of the cross-section:

Cross section Select the cross-section Set the values 

.

To set parameters:
Select the parameter Set the values  .

3

OK To location  .

OK

OKChange

OK

ChangeChange



Change

Edit

OK

calc

E. Operation

E.5 Memory

25

E.5.3 Protocols

Printing/deleting all protocols:

Select the folder Select a location  .

- The saved protocols are displayed. Protocols of measurement programs are marked
with a vertical line and the number of individual measurements (e.g..

|245), for more

than 999 measurements dots are used (

|...). If automatic furnace data are stored with

a measurement protocol the following symbol is displayed next to the protocol name:

. The data are printed with the protocol printout.

Options:

To print all data: Print all  .
To delete all data: Delete all  .

Displaying/printing/deleting a individual protocol:

1

Select the folder Select a location  .

- The saved protocols are displayed. Protocols of measurement programs are marked
with a vertical line and the number of individual measurements (e.g..

|245), for more

than 999 measurements dots are used (

|...). If automatic furnace data are stored with

a measurement protocol the following symbol is displayed next to the protocol name:

. The data are printed with the protocol printout.

2

Select the protocol  .
Options:

To print the data: .
To delete the data: .

E.5.4 Extras Memory

Calling up the function:



Memory  .

- The remaining free memory space is displayed.
Options:

Print all data  .
Delete all data  .
Delete memory  .

OK

OK

OK

Extra

Del

Print

Value

DataOK

OK

OK

DataOK

E. Operation
E.5 Memory

26

E.6 Instrument diagnosis

Important operating values and instrument data are displayed. A gas path check can be
carried out. The status of the measuring cells and any device errors not yet rectified can
be displayed.

Calling up the function:



Inst’ diagnosis.

-oor-
.

Performing a gas path check:

1

Gas path check  .

2

Place the black sealing cap on the tip of the flue gas probe.

- The pump flow is displayed. If the flow rate ≤0.02 l/min, the gas paths are not leak-

ing.

3

End the check: .

Viewing device errors:

Error diagnosis .

- Unrectified errors are displayed.

View next/previous error: , .

Viewing the sensor diagnosis:

1

Sensor check  .

- Possibly: Gas zeroing (30 s).

2

Select the measuring cell: , .

- The status of the measuring cell is displayed.

OK

OK

OK

OK

E. Operation

E.6 Instrument diagnosis

27

F. Configuration

This chapter describes the possible steps for adapting the product to the particular
measurement task or the requirements of the user.

Familiarity with the contents of the chapter

Operation

(see p. 15) is assumed.

F.1 Instrument settings

F.1.1 Display edit

The parameters/units and the display representation (number of readings displayed per
display page) can be set.

Available parameters and units (may vary from one instrument to another):

Display Parameter Units

∆∆

P2 Differential pressure (200hPa) mbar, hPa, Pa

mmWS, inW
psi, inHG

Gasfl Gas flow rate m3/h, l/ h
GasP Gas burner output kW
OilFl Oil flow rate kg/h
Oil p Oil pressure bar
OilP Oil burner output kW
Pabs Absolute pressure hPa , mbar, Pa,

mmWS, inW
psi, inHG

Pump Pump output l/m

∆∆

P1 Differential pressure (40hPa) mbar, hPa, Pa

mmWS, inW
psi, inHG

Speed Flow speed m/s,fpm
Flow Airflow m3/s, m3/m,

m3/h, m3/d,
m3/y, f3/s,
f3/m, f3/h,
f3/d, f3/y,
l/min

MCO, MNOx, Mass flow kg/h, kg/d, t/d,
MSO2 t/y, lb/h

H2 Hydrogen ppm

Display Parameter Units

FT Flue gas temperature °C, °F
CO2 Carbon dioxide %
qA Flue gas loss %

λλ

Air ratio -

O2 Oxygen %
CO Carbon monoxide ppm, %, g/ GJ

mgm3, mgKW

uCO Carbon monoxide undiluted ppm

ηη

Efficiency %

NO Nitrogen monoxide ppm, %, g/GJ,

mgm3, mgKW

NOx Nitrogen oxide ppm, %, g/GJ,

mgm3, mgKW

AT Ambient temperature °C, °F
Drght Flue draught mbar, hPa,

mmWS, inW,
pa, psi, inHG

SO2 Sulfur dioxide ppm, %, g/GJ

mgm3, mgKW

NO2 Nitrogen dioxide ppm, %, g/ GJ

mgm3, mgKW

Itemp Instrument temperature °C, °F
DP Flue gas dew point °C, °F

temperature

F. Configuration
F.1 Instrument settings

28

Calling up the function:



Inst’ settings Display edit  .

Setting the display representation:

Select

4 values on disp large or 8 values on disp small  .

Changing parameters and units:

1

Select the display position.
Options:

To insert a space: .
To delete a parameter: .

2

 Select parameter Select unit .

Saving settings:

OK Save input .

F.1.2 Printer

The headers (lines 1-3) and the footer for the printout can be set. The printer that is used
can be activated.

Calling up the function:



Inst’ settings Printer  .

Setting the print text:

1

Print text  .

2

Select

Line 1, Line 2, Line 3 or Footnote  .

3

Enter the values 

OK Save input .

4

Repeat steps 2and 3for the other lines in the same way.

5

OK Save input .

Printer selection:

Select Printer Select Printer  .

OKOK

OK

OK

Change

OK

OKOK

OK

OKOKChange

Del

Space

OK

OKOK

F. Configuration

F.1 Instrument settings

29

F.1.3 Start keys edit

The assignment of the function keys depends on the function that is selected. Only the
function keys in the start screen (shown when the measuring instrument is switched on)
can be assigned any function from the

Measurements menu.

The function keys are only active if the required sensors are connected.

Calling up the function:



Inst’ settings Start keys edit  .

Assigning functions to the start keys:

1

Select function  Press the function key that is to be assigned the selected function.

2

Repeat step 1for the other function keys as required.

Saving settings:

OK Save input .

F.1.4 AutoOff

With the AutoOff function active, the instrument switches itself off automatically if no key
is pressed after the set period of time.

Calling up the function:



Inst’ settings AutoOff  .

Switching AutoOff on and off:

Select

Auto Off select On or Off  .

Setting the AutoOff time:

Select

Time Set the value  .

OKChange

OKChange

OKOK

OK

OKOK

F. Configuration
F.1 Instrument settings

30

F.1.5 Date/Time

The date and the time can be set.

Calling up the function:



Inst’ settings Date/Time 

Setting the date/time:

Select

Time or Date Set the values  .

Saving settings:

OK Save input .

F.1.6 Language

The menu language can be set.

Calling up the function:



Geräteeinst.Sprache  .

-oor-



Inst’ settings Language  .

Setting the language:

Select

Deutsch or Englisch  .

-oor-

Select

German or English  .

OK

OK

OKOK

OKOK

OK

OKChange

OKOK

F. Configuration

F.1 Instrument settings

31

F.2 Sensor settings

It is possible to set an NO2 addition and thresholds for activating sensor protection (dilu­tion/disconnect). The actual calibration data and the status of the measuring cells can
be displayed. Recalibration can be carried out.

Calling up the function:



Sensor settings  .

Setting the NO2 addition:

1

NO2 addition.

Option:

Reset N02 addition to default value: .

2

 Set the value  .

Setting sensor protection:

To extend the measuring range and
protect the measuring cells against over­loads, you can set thresholds which, when
exceeded, activate sensor protection.
Thresholds for a variety of parameters can
be set, depending on the measuring cells
that are connected.

For instruments without "Dilution of all sen­sors" option: If a threshold of the measur­ing cell in slot 2 is exceeded, the gas to
sensor 2 is diluted by a factor of five.
There is switch-off if a measuring cell
threshold value is exceeded in slot 3.

For devices with the "Dilute all sensors" option: If a measuring cell threshold value is
exceeded in slot 2, the gas to sensor 2 is diluted by factor five. If a measuring cell
threshold value is exceeded in slot 3, gas to all sensors is diluted by factor two.

With dilution active, the reading resolution and accuracies will change, see Technical
data. Diluted values are represented inversely.

If the threshold is still exceeded despite dilution, the instrument is switched off. To de­activate sensor protection, set the thresholds to 0 ppm.

OKChange

Deflt

OK

F. Configuration
F.2 Sensor settings

32

1

Sensor protection  .

2

Select the parameter.
Option:

Reset selected parameter to default value: .

3

 Set the values  .

4

Repeat steps 2and 3for the other parameters accordingly.
Saving settings:

OK Save input .

Displaying actual calibration data/cell status:

Calibrationdata  .

Options:

To change between the actual calibration data of the individual measuring cells:
, .

To print out the actual calibration data of all measuring cells: .
To display the status of the measuring cell as a graphic: .

- The status of the measuring cell is checked on every recalibration. Any devia­tion from the condition on delivery is indicated as a percentage.
70%-threshhold: “Gas cell reading unstable, replace item recommended.“,
50%-threshhold: “Replacement gas cell.“
The last 25 recalibrations are shown.

To return to the display of the actual calibration data: .

Value

Graphic

Print

OK

OK

OKChange

Deflt

OK

F. Configuration

F.2 Sensor settings

33

Recalibration:

CO, SO2, NO2, NO measuring cells and the O2 reference value can be recalibrated.
Measurement gas dilution in slot 2 can be recalibrated.

If obviously unrealistic readings are displayed, the measuring cells should be checked
and recalibrated as required.

Dangerous gases
Danger oof ppoisoning!

Observe safety regulations/accident prevention regulations when handling
test gases.

Use test gases in well ventilated rooms only.

Recalibration with low gas concentrations can lead to deviations in accuracy in the
upper measuring ranges.
Sensor protection is not deactivated during recalibration. For this reason, test gas
concentration should be lower than the threshold values set for sensor protection.
Recalibrating the measuring cell at slot 2 has an effect on the dilution:Always carry
out a recalibration of measurement parameters before a recalibration of dilution.

The following conditions must be met when recalibrating:

· Use absorption-free tube material

· Switch the measuring instrument on at least 20 min before recalibration (warming-up)

· Use clean air for gas zeroing

· Charge the test gas via calibration adapter (0554 1205, recommended) or the tip of
the probe

· Maximum overpressure of the test gas: 30 hPa (recommended: unpressurised via
bypass)

· Charge the test gas for at least 3 min

Recommended test gas concentrations and compositions are given in Testo's field
guide to test gases.

1

Recalibration  .

- Possibly:Gas zeroing (30 s).

2

Select the parameter Enter the test gas concentration (nominal value).

3

Charge the measuring cell with test gas.

Change

OK

F. Configuration
F.2 Sensor settings

34

4

Start calibration: .
If the parameter of the measuring cell inserted in slot 2 has been selected:

- You will receive a query as to whether dilution should be initialised.
Start recalibration of parameter:  .
Start recalibration of dilution:  .

5

Accept the nominal value as soon as the actual value is stable: .

F.3 Fuels

The fuel can be selected. The fuel-specific coefficients can be set. Ten fuels can be set
for each customer.

Calling up the function:



Fuels  .

Activating fuel:

Select the fuel  .

Setting coefficients:

1

.

Option:

To reset all coefficients to default values:

Default values  .

To change the name of the fuel (only possible with customer-specific fuel):

Name 

 Set the values  .

2

Select the coefficient
Option:

To reset the chosen coefficients to default values: .

3

 Set the values  .

4

OK Save input .

OK

OKChange

Deflt

OKChange

OK

Coeff.

OK

OK

OK

StartYes

StartNo

Start

F. Configuration

F.3 Fuels

35

G. Measuring

This chapter describes the measuring tasks that can be carried out with the product.

Familiarity with the contents of the chapter

Operation

(see p. 15) is assumed.

G.1 Preparing measurements

G.1.1 Zeroing phases

Measuring the ambient air temperature (AT)

If no ambient air temperature sensor is connected, the temperature measured by the
thermocouple of the flue gas probe during the zeroing phase is used as the ambient air
temperature. All dependent parameters are calculated by this value. This method of
measuring ambient air temperature is sufficient for systems dependent on ambient air.
However, the flue gas probe must be near the intake duct of the burner during the zero­ing phase!

If an ambient air temperature sensor is connected, the ambient air temperature is
measured continuously via this sensor.

Gas zeroing

The first time a gas measuring function is called up after the instrument has been
switched on, the measuring cells are zeroed.

The flue gas probe may already be in the flue gas duct during zeroing if a separate AT
sensor is connected.

Draught/pressure zeroing (only with the "Pressure/flow speed measurement"

option)

The pressure sensors are zeroed when a pressure measuring function is called up.

The pressure sockets of the instrument must be free (i.e. unpressurized, not closed)
during zeroing.

G. Measuring
G.1 Preparing measurements

36

G.1.2 Using the modular flue gas probe

Checking the thermocouple

The thermocouple of the flue gas probe must not lie
against the probe cage.

Check before use. Bend the thermocouple back if
necessary.

Aligning the flue gas probe

The flue gas must be able to flow freely past the
thermocouple.

Align the probe by turning it as required.

The tip of the probe must be in the centre of the flue
gas flow.

Align the flue gas probe in the flue gas duct so that
the tip is in the centre of the flow (area of the
highest flue gas temperature).

G.1.3 Configuring the reading display

Only those parameters and units which are activated in the reading display appear in the
reading display, the saved measurement protocols and the protocol printouts.

Before beginning measurements, configure the reading display so that the required
parameters and units are activated, see

Display edit

, p. 28.

G. Measuring

G.1 Preparing measurements

37

RGS

G.2 Measurements

G.2.1 Flue gas, Flue gas + m/s, Flue gas + ∆p2

The Flue gas + m/s and Flue gas +

∆∆

p2 menus are only available on instruments with the

"Pressure/flow speed measurement" option.
The flue gas menus are the central measurement menus in which - in addition to the

readings measured with this function - the readings of all measurements carried out are
displayed (if this is selected in the

Display edit menu). All readings can also be saved in or

printed out from these menus.
The flue gas menus are always available, regardless of which sensors are connected.
Measuring functions of the three flue gas menus:

· The

Flue gas function enables flue gas to be measured.

· The

Flue gas + m/s function enables flue gas to be measured in addition to flow speed

(+ air/mass flow calculation) by means of a Pitot tube (the connection cable for the
Pitot tube thermocouple should not be connected to the instrument probe socket).·
The

Flue gas + ∆∆p2 function enables flue gas to be measured in addition to differential

pressure measurement.

After measurements with high concentrations and longer measurements, the instru­ment should be rinsed with fresh air in order to enable the measuring cells to regener­ate, see Chapter Recommended rinsing times, p. 57.

For flow speed and differential pressure measurement:
Before beginning measurement, configure the location settings (shape and surface
area of cross-section, parameters), see chapter

Location

, p. 24.
Do not measure for longer than 5 min, as the drift of the pressure sensor means that
the readings could be outside the tolerance limits.

Calling up the function:



Measurements Flue gas  .

-oor-



Measurements Flue gas + m/s  .

-oor-



Measurements Flue gas + ∆∆p2  .

- Possibly: gas zeroing (32 s).

OKOK

OKOK

OKOK

G. Measuring
G.2 Measurements

38

For the functions Flue gas + m/s and Flue gas +

∆∆

p2:

Depressurise the pressure sensor and carry out pressure zeroing with .

If nno ffuel hhas yyet bbeen sselected:

Select the fuel  .

Measuring:

1

Start measuring: .

- The readings are displayed.
Option:

Interrupt measurement and rinse measurement cells: ,
Continue measurement: .

2

Stop measuring: .
Options:

To print readings: .
To save readings: .

- The readings from the flue gas measurement, as well as any readings taken over

into the menu

Flue Gas from other measurement functions are stored and/or print-

ed in a measurement protocol (automatic furnace data are not printed).

G.2.2 Program

Five flue gas measuring programs can be set, saved and run.

Calling up the function:



Measurements Program  .

Changing a measuring program:

1

Select the program  .

2

Meas rate   Enter the values  .

3

Repeat step 2for the other criteria accordingly.

4

OK Save input .

OK

OKChange

Change

OKOK

Save

Print

Stop

Gas

Air

Start

OK

V = 0

G. Measuring

G.2 Measurements

39

Running a measuring program:

1

Select the program  .

2

Select

Start without zeroing (only available if gas zeroing has already been carried out)

or

Start with zeroing and start the program with .

- If selected: Gas zeroing (32 s).

- Stabilisation phase (60 s).

- The program will run and then stop after the programmed time.
Option:

To print readings: .
To cancel the program: , start again: .

G.2.3 Draught

The Draught function is only available on instruments with the "Pressure/flow speed
measurement" option and with a flue gas probe connected.

Do not measure for longer than 5 min, as the drift of the pressure sensor means that
the readings could be outside the tolerance limits.

Calling up the function:



Measurements Draught  .

Measuring:

1

Start measuring: .

- Draught zeroing (5 s).

2

Position the flue gas probe in the centre of the flow (area of the highest flue gas
temperature). The display showing the maximum measured flue gas temperature (FT)
helps when positioning the probe.

- The reading is displayed.

3

Stop measuring .

- The reading is recorded.
Option:

To print the reading: .

4

To copy the reading to the

Flue gas menu: .

- The

Measurements menu is opened.

OK

Print

Stop

Start

OKOK

StartStop

Print

OK

Start

G. Measuring
G.2 Measurements

40

G.2.4 Smoke# /HCT

Calling up the function:



Measurements Smoke#/HCT  .

Entering the smoke tester no./smoke #/oil derivative:

The function is only available if the chosen fuel is an oil.
1

Sm. tester no. Enter the tester number  .

2

Smoke # 1 Enter the value  .

3

Repeat step 2for the other smoke # and the oil derivative accordingly.

Entering the heat carrier temperature:

Heat carrier Enter the value  .

Copying values to the Flue gas menu:

The values are not shown on the instrument's display. In the menu

Flue Gas, they can

be stored and/or printed in a measurement protocol together with the readings from
a flue gas measurement, or transferred to a Pocket PC/PC

OK Copy readings  .

- The

Measurements menu is opened.

G.2.5 Gas flow rate

The Gas flow rate function is only available if the activated fuel is a gas.

Calling up the function:



Measurements Gas flow rate  .

Measuring:

1

Enter the measurement period:

Sample time Enter the value (18 or 36 s)

 .

2

Start measuring: . Note the counter status of the gas counter.

- The remaining measurement period is displayed.

- When the measurement period has lapsed, a long beep is emitted. The last 5 s are
indicated by a short beep.

3

Enter the flow rate:

Gasflow  Enter the value  .

- The calculated gas burner output is displayed.

4

Copy the values to the

Flue gas menu: OK Copy readings  .

- The

Measurements menu is opened.

OK

OK

Start

OK

Change

OKOK

OK

OKChange

OKChange

OKChange

OKOK

G. Measuring

G.2 Measurements

41

G.2.6 Oil flow rate

The Oil flow rate function is only available if the activated fuel is an oil.

Calling up the function:



Measurements Oil flow rate  .

Measuring:

1

Enter the flow rate:

Flowrate Enter the value  .

2

Enter the oil pressure:

Oil pressure Enter the value  .

- The calculated oil burner output is displayed.
3

Copy the values to the

Flue gas menu: OK Copy readings  .

- The

Measurements menu is opened.

G.2.7 m/s

The m/s function is only available on instruments with the "Pressure/flow speed
measurement" option.

A Pitot tube must be connected, the connection cable for the Pitot tube thermo­couple must be connected to the instrument probe socket.

For flow speed, air flow and mass flow to be measured correctly, the parameters of
cross-section shape, cross-section surface area, Pitot factor and offset factor must be
set, see

Location

, p. 24.

Do not measure for longer than 5 min, as the drift of the pressure sensor means that
the readings could be outside the tolerance limits.

Calling up the function:



Measurements m/s  .

Measuring:

1

Start measuring: .

- Pressure zeroing (5 s).
2

Position the Pitot tube in the duct. The display showing the measured flow speed
(Speed) helps when positioning the probe.

- The reading is displayed.
3

Stop measuring: .

- The reading is recorded.

Stop

Start

OKOK

OK

OKChange

OKChange

OKOK

G. Measuring
G.2 Measurements

42

Option:

To print the reading: .

4

Accept the reading: .

- The

Measurements menu is opened.

G.2.8 ∆p2

The

∆∆

p2 function is only available on instruments with the "Pressure/flow speed meas-

urement" option.

Do not measure for longer than 5 min, as the drift of the pressure sensor means that
the readings could be outside the tolerance limits.

When measuring the gas flow pressure of gas heaters:

Dangerous mixture of gases
Danger oof eexplosion!

Make sure there are no leaks between the sampling point and the
measuring instrument.

Do not smoke or use naked flames during measurement.

Calling up a function:



Measurements  ∆∆p2  .

Measuring:

1

Start measuring: .

- Pressure zeroing (5 s).

2

Position the Pitot tube in the duct.

3

Stop measuring .

- The reading is recorded.
Option:

To print the reading: .

4

Accept the reading: .

- The

Measurements menu is opened.

OK

Print

Stop

Start

OKOK

OK

Print

G. Measuring

G.2 Measurements

43

G.2.9 Burner control

With the help of the readout adapter for automatic furnaces (0554 1206), status data
and malfunction reports can be read out from compatible automatic furnaces, see also
documentation for readout adapter. The range of data which can be read out is depend­ent on the automatic furnace type.

Calling up the function:

1

Connect readout adapter to the instrument (PS2 interface) and the automatic furnace
(use adapter ring if necessary).

2



Measurements   Burner Control.

Option:

Display type and version of the adapter: .

3

.

- The data are read from the automatic furnace. An update of the data takes place
every 30s at the latest, this is dependent on the automatic furnace.

Reading out current status data:

The current data are displayed when a connection to the automatic furnace exists. The
following data are displayed with the help of symbols:

Component Status ON Status OFF Component Status ON Status OFF

Air controller Flame Symbol

not displayed

Motor Ignition

Valve1 Oil prewarmer

Valve 2

Printing data:

.

Display identification data:

Info  .

Display failure statistic:

Failure statistic  .

OK

OK

Print

OK

Adapt.

OK

G. Measuring
G.2 Measurements

44

Reading out failure store:

Automatic furnaces are equipped with circular buffer memories, i.e. failure reports are
overwritten when the failure store is full.. The last failure occurring is at position 1 in the
failure list.

.

Option:

Scroll through failure list: , .

Taking readings over into the menu Flue Gas:

The readings are not presented in the display, in the menu

Flue Gas they can be stored

with the readings from a flue gas measurement, stored in a measurement protocol or
transferred to a pocket PC/PC.

For taking data over into the menu

Flue Gas the function fields Info and Failure statistic

must not be active (grey background).

.

- The Menu

Measurements is opened.

OK

Failure

G. Measuring

G.2 Measurements

45

H. Transferring data

H.1 Protocol printer

If data are to be transferred to a Testo protocol printer via the infrared interface, the
printer that is to be used must be activated, see

Printer

, p. 29.

Data are printed out via the function key . The function is only available if a print­out is possible.

H.2 PC / Pocket PC

An instrument/PC connecting cable (0409 0178) is required in order to transmit data to
a PC. Data are transferred to a Pocket PC via the infrared interface.

You must also refer to the documentation that comes with the software.

Print

H. Transferring data
H.1 Protocol printer

46

I. Care and maintenance

This chapter describes the steps and action required in order to keep the product func­tioning properly.

See also

Regular care

, p. 18.

I.1 Cleaning the measuring instrument

If the housing of the instrument is dirty, clean it with a damp cloth. Do not use any
aggressive cleaning agents or solvents. Weak household cleaning agents and soap
suds may be used.

I.2 Replacing measuring cells

A slot bridge (0192 1552) must be inserted in slots which do not have a measuring cell.
Used measuring cells must be disposed of as special waste!

Retrofitted measuring cells: The enclosed cell heating unit is not required for testo 335.
The measuring instrument must be switched off.
1

Place the measuring instrument on its front.

2

Remove the service cover: Take hold of it at the markings (arrows) using the index
finger and thumb, press slightly, fold up and remove.

3

Pull tube connections from the faulty measuring cell/bridge.

4

Remove the faulty measuring cell/bridge from the slot.

Do not remove shorting jumpers/auxiliary circuit

boards of the new measuring cells until immediate­ly before installation. Do not leave the measuring cells
without a shorting jumper/auxiliary circuit boards for
longer than 15 min.

CO, CO

low

, NO2, SO2measuring cells:

Remove the shorting jumper.
NO/NO

low

measuring cells:

Remove the auxiliary circuit board.

I. Care and maintenance

I.2 Replacing measuring cells

47

5

Insert a new measuring cell/bridge in the slot.

6

Attach tube connections to the measuring cell/bridge.

7

Attach the service cover and engage it in place.
After replacing an O2 measuring cell, wait 60 min before using the instrument again.

If retrofitting a measuring cell, you must activate the relevant measuring parameter
and unit, see

Display edit

, p. 28.

I.3 Recalibrating measuring cells

See

Sensor settings

, p. 32.

I.4 Replacing additional filter

The additional filter provides added protection should problems occur with the particle
filter in the flue gas probe. The additional filter is very rarely contaminated if the measur­ing instrument is used normally.

Check the additional filter (visually) for contamination from time to time and replace it
if necessary.

1

Place the measuring instrument on its front.

2

Remove the service cover: Take hold of it at the
markings (arrows) using the index finger and
thumb, press slightly, fold up and remove.

3

Release the additional filter from the tube connec­tions.

4

Fit a new filter (0133 0010) on the tube
connections.

5

Fit the service cover and clip into place.

I. Care and maintenance
I.2 Recalibrating measurimg cells

48

I.5 Cleaning the modular flue gas probe

Detach the flue gas probe from the measuring

instrument before cleaning.
1

Release the probe catch by pressing the key on
the probe handle and remove the probe module.

Probe shafts with preliminary filter:
Unscrew the preliminary filter.

2

Blow compressed air through the flue ducts of the

probe module and probe handle (see illustration). Do

not use a brush!

Probe shafts with preliminary filter:
Blow compressed air through the preliminary filter. For thorough cleaning, use an
ultrasonic bath or a cleaner for dentures. Screw the preliminary filter back on to
the probe shaft after cleaning.

3

Fit a new probe module on the handle and engage it in place.

I.6 Replacing probe preliminary filter

The preliminary filter in probe modules fitted with a preliminary filter can be replaced.

Unscrew the preliminary filter from the probe shaft and screw on a new filter.

I.7 Replacing thermocouple

1

Release the probe catch by pressing the key on
the probe handle and remove the probe module.

2

Detach the plug-in head of the thermocouple from
its mounting using a screwdriver and pull the
thermocouple from the probe shaft.

3

Lead a new thermocouple into the probe shaft until
the plug-in head engages.

4

Fit probe module on the handle and engage it in
place.

I. Care and maintenance

I.5 Cleaning the modular flue gas probe

49

J. Questions and answers

This chapter gives answers to frequently asked questions.

Question Possible causes Remedy

Measuring instrument keeps AutoOff function is switched on. Switch AutoOff function off
switching itself off or (see

AutoOff

, p. 30).

instrument will not switch on. Battery spent. Charge rech. battery or connect mains unit

(see

Operation

, p. 15).

Measuring instrument will Battery spent. Charge rech. battery or connect mains unit
not switch on. (see

Operation

, p. 15).

Display of the battery capacity Battery was often not fully discharged / Discharge rechargeable battery fully (until
appears faulty charged. instrument switches off by itself) and then

charge fully.

Failure report: Gas output closed. Ensure that gas output is free

Pump flow rate to high

If we could not answer your question, please contact your dealer or Testo Customer
Service. Contact details can be found on the guarantee card or on the Internet under

www.testo.com

.

J. Questions and answers

50

K. Technical data

K.1 Standards and tests

· As declared in the certificate of conformity, this product complies with Directive
89/336/EEC.

· This product is TÜV approved to EN50379 part 2, exception: SO2 and NO2 parame­ters are not tested, recalibration is not blocke d.

K.2 Measuring ranges and accuracies

Parameter Measuring range Accuracy Resolution t90

1

O2 0...25Vol.% ±0.2Vol.% 0.01Vol.% < 20s
CO, H2-comp. 0...10000ppm ±10ppm or 1ppm <40s

±10% of reading

2

at 0...200ppm
±20ppm or
±5% of reading

2

at 201...2000ppm

±10% of reading at 2001...10000ppm

COlow 0...500ppm ±2ppm at 0.0...39.9ppm 0.1ppm <40s

±5% of reading at 40.0...500ppm

NO2 0...500ppm ±10ppm at 0.0...200.0ppm 0.1ppm < 40s

±5% of reading at 200.1...500.0ppm

SO2 0...5000ppm ±10ppm at 0...200ppm 1ppm < 40s

±5% of reading at 201...2000ppm
±10% of reading at 2001...5000ppm

NOlow 0...300ppm ±2ppm at 0.0...39.9ppm 0.1ppm < 30s

±5% of reading at 40.0...300.0ppm

NO 0...3000ppm ± 5ppm at 0...100ppm 1ppm < 30s

±5% of reading at 101...2000ppm
±10% of reading at 2001...3000ppm

Draught, ∆p1 -40...40hPa +1.5% v. Mw. at -40.00...-3.00hPa 0.01hPa -

+ 0.03hPa at -2.99...2.99hPa
+ 1.5% v. Mw. at 3.00...40.00hPa

∆p2 -200...200hPa ±1.5% of reading at -200.0...-50.0hPa 0.1hPa -

±0.5hPa at -49.9...49.9hPa
±1.5% of reading at 50.0...200.0hPa

K. Technical data

K.1 Standards and tests

51

Parameter Measuring range Accuracy Resolution t90

1

Pabs 600...1150hPa ±10hPa 1hPa ­Temperature (NiCrNi) -40...1200°C ±0.5°C at 0.0...100.0°C 0.1°C at -40.0...999.9°C depends

±0.5% of readingin rest of range 1°C at 1000°C...1200°C on probe

Temperature (PtRhPt)-40...1600°C ± 1°C at 0.0...200.0°C 1°C depends

±0.5% of readingin rest of range on probe
Efficiency 0...120% - 0.1% ­Flue gas loss -20.0...99.9% - 0.1% -

1

Response time 90%, recommended minimum measurement duration to guarantee correct readings: 3min

2

Whichever is the greater

With activated dilution sensor 2

Parameter Measuring range Accuracy Resolution t90

1

CO 0...50000ppm +10% of reading (additional error) 1ppm
COlow 0...2500ppm +10% of reading (additional error) 0.1ppm
NO2 0...2500ppm +10% of reading (additional error) 0.1ppm
SO2 0...25000ppm +10% of reading (additional error) 1ppm

With activated dilution of all sensors (optional)

Parameter Measuring range Accuracy Resolution t90

1

O2 0...25Vol.% ±1Vol.% of reading additional error (0...4,99Vol.%) 0.01Vol.% <20s

±0,5V ol.% of reading additional error(5...25Vol.%)
CO, H2-komp. 0...20000ppm +10% of reading (additional error) 1ppm
COlow 0...1000ppm +10% of reading (additional error) 0.1ppm
NO2 0...1000ppm +10% of reading (additional error) 0.1ppm
SO2 0...10000ppm +10% of reading (additional error) 1ppm
NOlow 0...600ppm +10% of reading (additional error) 0.1ppm
NO 0...6000ppm +10% of reading (additional error) 1ppm

1

Response time 90%, recommended minimum measurement duration to guarantee correct readings: 3min

K. Technical data
K.2 Measuring ranges and accuracies

52

K.3 Other instrument data

Characteristic Values

Operating temperature -5...50 °C
Storage/transport temperature -20...50 °C
Power supply Battery block: 3.7V/ 2.4 Ah

Mains unit: 6.3 V/1.2 A
Dimensions (L x W x H) 270 x 90 x 65mm
Weight 600 g (excluding battery)
Memory max. 100 folders, max. 10 locations per folder
Display Monochrome, 4 grey levels, 160 x 240 pixels
Battery storage temperature: ±0...35 °C
Battery life >6 h (pump on, display light off, 20 °C ambient temperature)
Battery charge time approx. 5-6 h
Guarantee (according to Measuring instrument: 24 months

Testo guarantee conditions) Measuring cells: 12 months, O2 measuring cell: 18 months

Flue gas probe: 24 months

Thermocouple: 12 months

Battery: 12 months

K. Technical data

K.3 Other instrument data

53

K.4 Principles of calculation

K.4.1 Fuel parameters

Fuel A2

1

B

1

CO2max

2

O2-Bezug2V

AGtrMin

1

V

LMin

1

Natural gas 0.660 0.009 11.9 Vol.% 3 Vol.% 8.36 9.12
Light oil 0.680 0.007 15.4 Vol.% 3 Vol.% 10.53 11.26
Heavy oil 0.806 0.000 15.9 Vol.% 3 Vol.% 10.09 10.73
Propane 0.630 0.008 13.7 Vol.% 3 Vol.% 23.80 25.95
Wood 0.765 0.000 20.3 Vol.% 13 Vol.% 7.64 7.66
Pellets 0.765 0.000 20.3 Vol.% 13 Vol.% 7.64 7.66
Briquettes 0.833 0.000 18.9 Vol.% 8 Vol.% 5.08 5.20
Brown coal 0.955 0.000 19.8 Vol.% 8 Vol.% 4.01 4.09
Anthracite 0.758 0.000 20.5 Vol.% 8 Vol.% 7.81 7.82
Coke oven gas 0.600 0.011 10.3 Vol.% 3 Vol.% 3.86 4.28
Town gas 0.630 0.011 13.6 Vol.% 3 Vol.% 3.61 3.90
Diesel 0.686 0.007 15.5 Vol.% 3 Vol.% 10.45 11.17
Petrol 0.659 0.007 15.0 Vol.% 3 Vol.% 10.10 10.8
Test gas 0.0000 0.000 0.00 Vol.% 0 Vol.% 0.00 0.00

1

Fuel-specific factor

2

Factory setting

K.4.2 Calculation formulae

CCaarrbboonn ddiiooxxiiddee::

CO2= C0

2max

: Fuel-specific

carbon dioxide value

O

2

ref: O2 reference value

O

2

: Measured oxygen

content as %

FFlluuee ggaass lloossss::

qA =

(

(FT-AT) x ( + B )

)

- K

k

FT: Flue gas temperature
AT: Ambient air temperature
A2/B: Fuel-specific

parameters

O

2ref

: O2 reference value

O

2

: Measured oxygen

content as %

K

k

: Calculated value taking

into account the recovered
condensation heat
when the dew point is
undershot (for fuel value
systems).

A2

O

2ref

- O

2

CO

2max

x (O

2ref

- O2)

O

2ref

K. Technical data
K.4 Principles of calculation

54

EEffffiicciieennccyy:: ηη

= 100 - qA

qA

: Calculated flue gas loss

AAiirr rraattiioo:: λλ

= 1+ x V

AGtrMin

: Dry flue gas volume with

stoichiometric
combustion

V

LMin

: Air requirement for stoichio-

metric combustion of
the fuel

O

2ref

: O2 reference value

O

2

: Measured oxygen

content as %

NNiittrrooggeenn ooxxiiddeess::

No NO2 measuring cell connected:

NO

: Measured nitrogen

NO

x

= NO + (NO

2Add.

x NO) monoxide value

NO2 Measuring cell connected: NO

2Add.

: Nitrogen dioxide

NO

x

= NO + NO

2

addition factor

CCaarrbboonn mmoonnooxxiiddee
uunnddiilluutteedd::

uCO = CO x

λλ

CO

: Measured carbon

monoxide value

λ: Calculated air ratio

FFlluuee ggaass ddeeww ppooiinntt::

ATP = F

H20

: Flue gas-specific

water vapour content as
vol.%

P

Abs

: Absolute pressure in

mbar/hPa

FFllooww ssppeeeedd::

v= P

abs

: Absolute pressure

∆P: Differential pressure
FT: Flue gas temperature
α: Pitot tube factor

AAiirr ffllooww::

V = v x a v: Flow speed

a: Cross-section area

x

αα

575 x ∆∆P x (FT + 273.15)

P

abs

)x 234.175
)- 17.08085

F

H20

x P

Abs

610.78

F

H20

x P

Abs

610.78

ln (
ln (

CO

2

CO

2

O2-

O

2ref

- O2+

V

AGtrMin

V

LMin

K. Technical data

K.4 Principles of calculation

55

Mass flow:

MMaassss ffllooww CCOO::

MCO = CO [kg/h] [ppm] x F

Gas

x 1.25 [kg/m3] x Z

MMaassss ffllooww NNOO

x

::

MNOx= NOx[kg/h] [ppm] x F

Gas

x 2.05 [kg/m3] x Z

MMaassss ffllooww SSOO

2

::

MSO2= SO2[kg/h] [ppm] x F

Gas

x 2.86 [kg/m3] x Z Fgas: Fuel-specific

humidity value
T: Dew point
Z: Calculation term

(see below)

Calculation term Z: Z =

xx VV

[m

3

/s]

xx 1100

-66

[1/ppm] x 3600

Conversion from ppm to mg/m3:

CCaarrbboonn mmoonnooxxiiddee::

CO [mg/m3] = x CO [ppm] x 1.25

NNiittrrooggeenn ooxxiiddee::

NOx [mg/m

3

] = x NOx[ppm] x 2.05

SSuullffuurr ddiiooxxiiddee::

SO2 [mg/m

3

] = x SO2[ppm] x 2.86 O

2ref

:O2 Reference value

O

2

: Measured oxygen

content as %
O

2Bez

: Fuel-specific

oxygen reference index as %

O

2ref

- O

2Bez

O

2ref

- O

2

O

2ref

- O

2Bez

O

2ref

- O

2

O

2ref

- O

2Bez

O

2ref

- O

2

273.15 x Pabs [mbar]

273.15 +T [°C] x 1013

K. Technical data
K.4 Principles of calculation

56

K.5 Recommended rinsing times

Recommended rinsing times in measurements with high concentrations and longer
measurements:

Rinse instrument: Expose probe to fresh air and start flue gas analysis

Parameter Concentration [ppm] Measurement duration [min] Recommended rinsing time [min]

CO 50 60 5

100 30 5
200 20 10
500 10 10
1000 10 15
2000 10 20
4000 5 30
8000 5 60

COlow 10 60 5

20 30 5
50 20 10
100 10 10
200 10 15
500 10 20

NO 50 60 5

100 45 5
200 30 5
500 20 10
1000 10 10
2000 10 20
3000 5 30

NOlow 10 60 5

20 45 5
50 30 5
100 20 10
200 10 10
300 10 20

NO2 10 60 5

20 45 5
50 30 5
100 20 10
200 10 10
500 10 20

SO2 50 60 5

100 30 5
200 20 10
500 15 10
1000 10 10
2000 10 20
5000 5 40

K. Technical data

K.5 Recommended rinsing times

57

L. Accessories/spare parts

Designation Article no.

Modular flue gas probes

Modular flue gas probe 300mm, 500°C, thermocouple 0.8mm 0600 9766
Modular flue gas probe 700mm, 500°C, thermocouple 0.8mm 0600 9767
Modular flue gas probe 300mm, 1000°C, thermocouple 0.8mm 0600 8764
Modular flue gas probe 700mm, 1000°C, thermocouple 0.8mm 0600 8765
Modular flue gas probe with preliminary filter 300mm, 1000°C, thermocouple 0.8mm 0600 8766
Modular flue gas probe with preliminary filter 700mm, 1000°C, thermocouple 0.8mm 0600 8767

Probe modules/accessories for modular flue gas probes

Module probe shaft 300mm, 500°C, thermocouple 0.8mm 0554 9766
Module probe shaft 700mm, 500°C, thermocouple 0.8mm 0554 9767
Module probe shaft 300mm, 1000°C, thermocouple 0.8mm 0554 8764
Module probe shaft 700mm, 1000°C, thermocouple 0.8mm 0554 8765
Module probe shaft with preliminary filter 300mm, 1000°C, thermocouple 0.8mm 0554 8766
Module probe shaft with preliminary filter 700mm, 1000°C, thermocouple 0.8mm 0554 8767
Extension lead for modular flue gas probe, 2.80m 0554 1202
Particle filter, 10 pcs 0554 3385
Replacement preliminary filter for modular flue gas probe with preliminary filter (2 pcs.) 0554 3372

Other probes/sensors

Pitot tube, 350mm 0635 2041
Pitot tube, 700mm 0635 2042
Ambient air temperature (AT) sensor, 60 mm 0600 9797

Retrofit measuring cells

NOlow retrofitting kit 0554 3928
NO retrofitting kit 0554 3935
COlow retrofitting kit 0554 3925
CO retrofitting kit 0554 3933
NO2 retrofitting kit 0554 3926
SO2 retrofitting kit 0554 3927

Replacement measuring cells

O2 measuring cell 0390 0049
CO measuring cell 0390 0088
NOlow measuring cell 0390 0077
NO measuring cell 0390 0093
NO2 measuring cell 0390 0075
SO2 measuring cell 0390 0081

L. Accessories/spare parts

58

Designation Article no.

Other accessories

Desktop printer 0554 0547
Mains unit 0554 1086
Charger with replacement battery 0554 1087
Replacement battery 0515 0100
Instrument/PC connecting cable 0449 0047
testo EasyEmission PC configuration software 0554 3334
Additional filter 0133 0010
Calibration adapter 0554 1205
Aluminium system case 0516 3350

L. Accessories/spare parts

59

Functional overview

The table gives an overview of the most important functions configured on the individual
instruments. Detailed information about the individual functions can be found on the
pages indicated.

Task Call/function see page

 Measurements 

Flue gas measurement Flue gas  38
Flue gas measurement with parallel flow measurement Flue gas + m/s 

(+ air/mass flow calculation) 38
Flue gas measurement with parallel differential Flue gas + ∆∆p2 

pressure measurement 38
Change/save/run measuring program Program  39
Draught measurement Draught  40
Enter smoke #/heat carrier temperature Smoke # / HCT  41
Determine gas flow rate Gas flow rate  41
Determine oil flow rate Oil flow rate  42
Flow speed and pressure measurement m/s  42
Pressure measurement

∆∆

p2  43

Read automatic furnace Burner control  44

 Memory 

Create new folder New folder  23
Sort folder list by Folder, Name or Addr’ Folders list  or or 23
Sort locations list by order of creation Restore list  23
Create new location Folder   New location  23
Sort locations list by location name Folder   Locations list  23
Sort locations list by order of creation Folder   Restore list  23
Activate location Folder   Select location  23
Perform location settings Folder   Select location  23
Display measurement data of one location Folder   Select location  23
Print all measurement data of a location Folder   Select location  

Print all  23

Delete all measurement data of a location Folder   Select location  

Delete all  23

Display readings of a selected measurement protocol Folder   Select location  

Select protocol  23

Print a single measurement protocol Folder  Select location  

Select protocol  23

Print

DataOK

Value

DataOK

OK

DataOK

OK

DataOK

DataOK

ChangeOK

OKOK

OKOK

LocatOK

OKOK

OK

Addr’NameFolder

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

Functional overview

60

Task Call/function see page

 Memory

Print all protocols in the memory Print all data  23
Delete all protocols in the memory Delete all data  23
Clear whole memory (protocols and locations) Delete memory  23

 Inst’ settings 

Set reading display  Display edit  28
Select printer, set print text  Printer  28

Set function key assignment, start screen  Start keys edit  28
Set date/time  Date/Time  28
Set language  Language  28
Set automatic instrument disconnect  AutoOff  28

 Sensor settings 

Display calibration data Calibration data  32
Set NO2 addition NO2 addition  32
Set O2 reference O2 reference  32
Set sensor protection Sensor protection  32
Perform recalibration Recalibration  32

 Fuels 

Activate fuel Select fuel  35
Change fuel coefficients Select fuel  35

-or -  Inst’ diagnosis 

Perform gas path check Gas path check  27
View instrument errors Error diagnosis 27
View sensor diagnosis Sensor diagnosis  27

OK

OK

OK

OK

Coeff.

OK

OK

OK

OK

Change

Change

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

OK

Extra

Functional overview

61

Notes

62

Notes

63

0971.3350/02/T/wh/01.08.2005