•The instruction manual is an integral part of the instrument.
•Keep this documentation to hand so that you can refer to it when necessary.
•Please read this instruction manual through carefully and familiarize yourself
with the product before putting it to use.
•Hand this instruction manual on to any subsequent users of the product.
•Pay particular attention to the safety instructions and warning advice in order
to prevent injury and damage to the product.
Symbols
Display Explanation
1
Action: several steps, the sequence must be followed.
2
Warning notices
Always pay attention to any information marked with the following warning
notices along with warning pictograms. Implement the specified precautionary
measures!
Please observe the Testo information document (enclosed with the product).
Product-specific safety instructions
CAUTION
The condensate may be acidic.
Risk of burns to the hands!
Wear acid-resistant safety gloves, glasses and overalls to empty the
condensate.
•Make sure that the condensate has been fully emptied out of the condensate
trap before the measuring instrument is stored for a long time.
•Before disposing of the product, the condensate trap must be emptied and
the condensate in the crude gas tube disposed of in a suitable container.
•When testing a gas pipe, pay attention to the following:
WARNING
Make sure there are no leaks between the sampling point and the measuring
instrument.
Do not smoke or use naked flames during the measurement.
CAUTION
Acid in the sensors.
May cause chemical burns.
Do not open the sensors.
Eye contact: Rinse the affected eye thoroughly under running water for 10
minutes, keeping the eyelids wide open and protecting the unaffected eye.
Remove contact lenses wherever possible.
CAUTION
Acid in the sensor filters.
May cause irritation to the skin, eyes or respiratory tract.
Do not open the sensor filters.
Eye contact: Rinse the affected eye thoroughly under running water for 10
minutes, keeping the eyelids wide open and protecting the unaffected eye.
Remove contact lenses wherever possible.
Skin contact: Remove the injured person’s contaminated clothing, ensuring
self-protection. Rinse affected skin areas under running water for at least 10
minutes.
Inhalation: Move to fresh air and make sure that breathing is unrestricted.
Ingestion: Rinse mouth out and spit out liquid. If conscious, drink 1 glass of
water (approx. 200 ml). Do not induce vomiting.
4 Authorizations and certification
Please find the current country approvals in the Approval and Certification
document which is enclosed with the product.
5 Specifications
The Next-Gen testo 300 is a measuring instrument which enables the
professional flue gas analysis of combustion systems, such as
•small combustion plants (oil, gas, wood, coal)
•low-temperature and condensing boilers
•gas heaters.
.
Using the instrument, these systems can be adjusted and checked for
compliance with the applicable limit values.
The instrument has been verified as a short-term measuring instrument and
should not be used as a safety (alarm) device. It is intended for indoor use only.
The following tasks can also be carried out using the instrument:
•Regulating the O2, CO and CO2, NO, NOx values in combustion plants to
ensure optimum operation.
•Draft measurement.
•4Pa measurement.
•Measuring and regulating the gas flow pressure in gas heaters.
•Measuring and optimizing the flow and return temperatures of heating
systems.
•Measuring the CO concentration in the ambient air.
•The instrument can be used for measurements on CHP plants in accordance
with the first German Federal Immission Control Ordinance (BImschV).
•In principle, the CO sensor can also be used for measurements on CHP
plants. If you carry out more than 50 measurements on CHP plants per year,
please contact your nearest service center or send the instrument to Service
for checking.
An NOx filter for the CO sens
used filter.
or can be ordered as a spare part to replace a
he Next-Gen test
T
professional flue gas analysis of combustion systems, such as
•small combustion plants (oil, gas, wood, coal)
The solid fuel measurement adapter (0600 9765) is required for
measurements on solid fuel systems. The adapter protects the
measuring instrument from harmful substances (dust, organic
compounds, etc.).
•low-temperature and condensing boilers
•gas heaters.
.
Using the instrument, these systems can be adjusted and checked for
compliance with the applicable limit values.
The instrument has been verified as a short-term measuring instrument and
should not be used as a safety (alarm) device.
The following tasks can also be carried out using the instrument:
•Regulating the O2, CO and CO2, NO, NOx values in combustion plants to
ensure optimum operation.
•Draft measurement.
•4Pa measurement.
•Measuring and regulating the gas flow pressure in gas heaters.
•Measuring and optimising the flow and return temperatures of heating
systems.
•Measuring the CO concentration in the ambient air.
•The instrument can be used for measurements on CHP plants in accordance
with the first German Federal Immission Control Ordinance (BImschV).
•In principle, the CO sensor can also be used for measurements on CHP
plants. If you carry out more than 50 measurements on CHP plants per year,
please contact your nearest service centre or send the instrument to Service
for checking.
An NO
filter.
filter for the CO sensor can be ordered as a spare part to replace a used
Connect the instrument plug of the Power Supply to the mini USB on
the measuring instrument.
Connect the power supply into a power supply.
The measuring instrument is powered via the power supply.
If the instrument is switched off and a battery is inserted, the charging
process will start automatically. Switching the measuring instrument
on stops the charging of the battery and the measuring instrument is
powered via the power supply.
For longer measurements involving mains operation, Testo
recommends using a combustion air temperature probe with
connection cable. Self-heating of the instrument during power supply
operation may influence the combustion air temperature measurement
using a mini ambient air probe.
7.3 Touchscreen Operation
Familiarize yourself with the touchscreen operating concept before you use the
measuring instrument.
Actions are mostly carried out by:
Description
To open applications, select menu symbols,
press buttons on the display or enter characters
with the keypad, in each case tap these with a
finger.
Swipe to the right or left on the display to show
further views, e.g. to switch from the list view to
the graphic view.
In order to make a section of the display larger
or smaller, touch the display with two fingers
and move them apart or together.
You can move an element by touching it,
holding it and dragging it to the required
position.
Example: Changing the display sequence of the
measurement parameters.
Keypad
Some functions require values (figures, numerical value, unit, characters) to be
entered. The values are entered via a keypad.
on the display (figures, numerical
value, unit, characters).
The testo Bluetooth
Keep out of reach of children.
1
Connecting Smart Probes and testo
Smart App
The Next-Gen testo 300 has the option of establishing a Bluetooth® connection
with wireless probes via the testo Bluetooth® Connector as well as a
connection to the testo Smart App at the same time.
If the Next-Gen testo 300 is used with Smart Probes, they must be at
least 8 inches (20 cm) apart.
Attaching the testo Bluetooth® Connector
(0554 3004)
Once the testo Bluetooth® Connector is plugged in, all the warning
and safety instructions for the Next-Gen testo 300 apply.
WARNING
®
Connector is a small part that can be swallowed.
Connect the testo B
Connector to the
socket on the Next-Gen testo 300.
When connected, a testo Bluetooth® Connector icon appears in
the Next-Gen testo 300 status display.
You can now connect up to 4 Smart Probes to the Next-Gen testo
300 at the same time.
The LED flashes yellow while connecting via Bluetooth® and then
flashes green when the connection is established.
Once the Smart Probe is connected
with the Next-Gen testo 300, this
reading appears on the display. The
product name and the product ID
(last three digits of the serial number)
indicate at a glance which Smart
Probe is providing the reading. The
readings are transmitted to the testo
300 NEXT LEVEL in fixed measuring
cycles of 1 second.
If the Next-Gen testo 300 receives no new measuring value at the
expected receiving time, e.g.:
- the Smart Probe is outside the connection range
- another problem causes an interrupted connection
no more readings are shown on the Next-Gen testo 300 (display: "----")
Carrying out the normal testo 300 FW update is sufficient to update the
testo Bluetooth® Connector. The testo Bluetooth® Connector then
receives the update when the Next-Gen testo 300 is next switched off.
This means that every testo Bluetooth® Connector with an older
version is updated during switch-off. This is indicated by the
continuous red flashing condensate trap.
Remote measurement start/
stop on Next-Gen testo 300
7.7.3.2 Measurement menu – testo 300 Second Screeen
The testo Smart App features several stored measurement programs.
Depending on the measurement task, these enable the user to configure and
carry out the measurement conveniently. To use the Next-Gen testo 300 with
the testo Smart App, only the measurement program testo 300 Second Screen
is used.
Basic view
In the Basic View application menu, the current measured values can be read,
recorded and saved. The basic view is particularly suitable for quick and
simple measurements. All Bluetooth® probes (apart from Next-Gen testo 300)
compatible with the testo Smart App are displayed in the basic view.
The PIN only needs to be entered when connecting for the first time.
After that,
recognized by the testo Smart App and the connection is established.
The connection is automatically established.
the configured Next-Gen testo 300 is automatically
www.GlobalTestSupply.com
Page 24
7.7.5
Carrying out the measurement
1 2 3
4
Click on required activity:
7.7.6
1
2
Click on Language.
Open the testo Smart App.
7 First steps
Click on Measure
Click on the testo 300 Second Screen measurement program.
The connection to the Next-Gen testo 300 is automatically
established (this may take a few seconds).
Once the connection has been established between the App and NextGen testo 300, the App will be in Second Screen m
represented by
measurement data from the Next-Gen testo 300 is mirrored on the App.
The measurement can now be controlled from both instruments.
•Start measurement: click on Start.
•Stop measurement: click on Stop.
•Request the measurement report from Next-Gen testo 300: click on
Request PDF from testo 300.
•Save measurement on the Next-Gen testo 300: Click on Save.
No other measuring apps from the Smart App can be used while the
connection is being established.
To establish a connection, the Smart App connection must be
activated on the Next-Gen testo 300.
To establish a connection, the Wi-Fi must be activated on the
smartphone/tablet.
Use the slider to activate or deactivate Update for connected
7.7.7.2
1
2
Click on Tutorial.
7.7.7.3
1
2
Click on Exclusion of liability.
The required language is set.
Help and Information
Under Help and Information, you will find information about the testo Smart App.
The stored tutorial can be called up and implemented. This also where legal
information can be found.
Instrument information
Click on Help and Information.
The Help and Information menu opens.
The current App version, Google Analytics instance ID, refrigerant
version and update are displayed for the connected instrument.
Automatic updates for instruments can be enabled or disabled.
instruments.
Tutorial
Click on Help and Information.
The Help and Information menu opens.
The tutorial shows you the most important steps prior to
commissioning.
Further symbols on the user interface (without numbering)
Retry measurement
One level back
One level back
One level back
Cancel process
Print values
Save report
Save and send report
Generate QR code
8.1.1 List reading display type
The measurement parameters/units and the number and order of the
measurement parameters displayed in the List reading display type can be set,
see Section Edit View.
Only those measurement parameters and units that are enabled in the reading
display appear in the reading display, in the saved measurement protocols and
on the report printouts.
The settings only apply to the measurement type currently enabled.
Overview of the sensors fitted and their
condition.
Error List
Call up error reports
Device information
Information
- qA date
Server information
Information about the available server
E-Mail
Set up e-mail account and the e-mail
- Country version and language
- Wi-Fi
- Date & Time
- Own company address
- Hotspot
- Rechargeable battery management
- Display brightness
- Manage e-mail accounts
- CO/NO sensor protection
- NO2 addition
- O2 reference
- Alarm limits
- Device name
- Serial number
- Instrument identification number
- Last service
- Free memory
- Operating hours
- Operating hours since last service
- Software version
- Firmware version
- Firmware date
- qA version
8 Using the product
account can be called up.
To set up the e-mail account on the
Next-Gen testo 300 the IMAP setting in
your e-mail account with your provider
must be activated. You can find more
information in your e-mail account itself,
e.g. under FAQs or Settings.
All saved measurements are displayed in one of
the following time categories, depending on the
creation date: Today, Yesterday or Older.
The measurements selected to create the report
are identified with .
Sign report.
Back to the main menu: tap
or
If you have saved more than 100 measurements, they can be stored in
the archive folder. A dialogue window appears automatically and you
can choose whether you want to create this archive folder or not.
Saved reports
The measurement reports that have been created are stored under Saved
reports. These can be called up again, sent or deleted.
Call up function: | Saved reports.
The OI File Manager folder is opened and the available reports are
displayed.
When connecting to the testo Smart App for the first time: enter the
4
Back to Main menu: tap .
8.2.5
1
2
Place the black sealing cap on the tip of the flue gas probe.
The pump flow is displayed. If the flow rate is less than 0.02 l/min, the
gas paths are not leaking and the measurement is ended.
3
Remove the sealing cap from the probe tip.
4
8.2.6
8.2.6.1
8.2.4 Second Screen
In the Second Screen menu item, the Smart App connection can be activated or
deactivated. This is also where the connection PIN required for the initial
connection is stored.
To connect the Next-Gen testo 300 to your smartphone or tablet, the Second
Screen connection must be activated.
Call up function: | Second Screen
Tap the Smart App connection selection field to activate (
)/deactivate ().
displayed connection PIN in the testo Smart App, under the testo 300
Second Screen measurement program.
Gas path check
For flawless operation of the measuring instrument, regular tightness testing of
measurement systems (measuring instrument + flue gas probe) is
recommended.
Call up function: | Gas path check
Gas path check starts automatically.
Back to the main menu: tap .
Device settin g s
Country version and language
Set up your measuring instrument country-specifically.
The country version configuration affects the measurement parameters, fuels,
fuel parameters and the bases of and formulas for calculations that are enabled.
Call up function: | Device Settings | Sensor Protect
2
Enter the alarm limit value via the keypad.
3
1
Call up function: | Device Settings | NO2 addition
2
Enter the addition value using the keyboard.
3
Confirm the input with OK.
4
Back to the Device Settings menu: tap .
8.2.6.11
1
Call up function: | Device settings | O2 reference
2
Enter the value via the keypad.
3
8 Using the product
CO/NO sensor protect
Limit values can be set to protect the CO/NO sensors against overload. Sensor
protect is enabled if these are exceeded:
•Fresh air dilution if exceeded (only for instruments with the "Dilution" option)
•Shutdown if exceeded again
When dilution is enabled, the CO and CO undiluted values are
displayed in a blue font. A “*” is shown on the printout after the name of
both values to indicate dilution.
CO input screen: Set Sensor Setting is opened.
Confirm input with .
The limit values must be set to 0 ppm to disable sensor protect.
8.2.6.10 NO2 addition (testo 300 Professional / Industrial)
O2 reference
The O2 reference value of the current fuel can be set.
Set account options, such as synchronization interval
5
Entry of account name (optional) and name which appears with the
sent e-mails.
If the system does not accept the e-mail address and password
Setting up an e-mail account
An e-mail account has to be set up in order to be able to send
reports as e-mails. A Wi-Fi connection must be available to set the
account up.
The inbox of the e-mail account is opened.
combination, but you are certain it is correct, check the following
possible solutions:
•Open e-mail client, e.g. gmail, on a PC and check e-mail reception.
Your provider may have sent you a security e-mail that you need to
acknowledge before the e-mail account can be accepted on the
Next-Gen testo 300.
•Enable IMAP account
To do this, call up your e-mail account on the PC. You will find the
setting for the common e-mail providers, e.g. gmx, under settings POP/IMAP. Account-specific information about the enabling of the
IMAP account is supplied by the relevant provider. Find out about
this from the relevant provider or on the Internet.
•Manual set-up of the e-mail account
1.Call up function: | E-Mail.
2.Enter e-mail address.
3.Select Manual set-up.
4.Select Private account type (IMAP)(recommended).
5.Enter password.
6.Enter/change server, port and security type.
This information is e-mail account specific and is supplied
by your e-mail account provider. Find out about this from
your account provider or on the Internet.
Testo would like to offer you the best possible customer service. Register your
instrument so that, when you call, our employees in Customer Service have all
the information they need available at all times, so that they can quickly provide
you with further assistance.
You will find the information you need for registration on the sticker on the back
of the instrument.
Follow the instructions on the display.
Registration gives you the following advantages:
•1 year's additional warranty for free
•Always being up to date with the latest from Testo
Tutorial
The tutorial provides you with an overview of and an introduction to the
operation and functions of the instrument.
Check the condensate container fill level and if necessary empty
2
Check the particle filter of the flue gas probe for contamination and
9.2
>
9 Performing the measurement
Performing the measurement
Prepare for measurement
container, see Section 10.5 Empty condensate trap.
replace it in good time. If necessary, see Section 10.10 Check/replace
particle filter.
Zeroing phases
Measuring the combustion air temperature (AT)
If no external combustion air temperature probe or testo 915i Smart Probe is
connected, the combustion air temperature is measured via the integrated
temperature probe.
Gas zeroing
The gas sensors are automatically zeroed after the instrument is switched on.
Next-Gen testo 300 without probe zeroing option in the flue gas:
The flue gas probe must be in fresh air during the zeroing phase (30
seconds)!
Next-Gen testo 300 with probe zeroing option in the flue gas:
The flue gas probe may already be in the flue gas duct during the
zeroing phase (30 seconds).
Start zeroing of the gas sensors manually: | Zeroing Gas Sensors
Draft/pressure zeroing
The pressure sensors are zeroed when a pressure measuring function is called
up.
Next-Gen testo 300 without probe zeroing option in the flue gas:
The flue gas probe must be in fresh air during the zeroing phase!
The instrument must not be pressurized during zeroing!
Next-Gen testo 300 with probe zeroing option in the flue gas:
The flue gas probe may already be in the flue gas duct during the
zeroing phase. The pressure socket of the instrument must be free
(depressurized, not closed).
In order to maintain the measuring accuracy of the instrument, the
correct fuel must be selected or configured.
Tap (Fuels)
> Select fuel.
To achieve usable measurement results, the test time of a flue gas
measurement should be at least 3 minutes and the measuring
instrument should display stable readings.
If a separate CO Air Free measurement has not yet been carried out,
this value is calculated using the readings from the flue gas probe and
continuously updated.
56
For this type of measurement, the Averaging option is also available.
See Averaging section.
Up to four Smart Probes can be used simultaneously during flue gas
measurement. This enables parallel measurement of the combustion air
temperature, the differential temperature and the differential pressure.
The following Smart Probes can be connected:
testo 915i (0563 4915), testo 510i (0560 1510), testo 115i
Readings are displayed.
If the Draft measurement parameter is enabled in the reading
display, a draft measurement is automatically started in parallel to
the flue gas measurement. In the List measurement data view, the
parallel draft measurement can be stopped/restarted. This draft
measurement is performed separately to a measurement of the
Draft measurement type.
For the draught measurement, the minus connection for differential
pressure measurement must be free (ambient pressure, not closed).
Tap on the draught reading display or next to it.
End measurement: tap .
Automatic display after connection of one or more Smart Probe testo 115i
or testo 915i during flue gas measurement
If several temperature probes are connected in total (external probes and/or
testo 115i or testo 915i), the temperature probes are used for flue gas
measurement according to the following procedure.
The AT probe = external cable probe always has first priority.
For an instrument with no dilution option: The minus connection for
1
2
Tap Differential pressure.
3
4
A differential temperature measurement can also be carried out with
Probes testo 915i (<1 second).
Two external temperature probes must be connected. Alternatively,
1
2
differential pressure measurement must be depressurized at the start of
the measurement (ambient pressure, instrument not connected to
system being checked), since the pressure sensor is zeroed.
Call up function: | Differential pressure
Start measurement. Tap .
Zeroing the pressure sensor.
Reading is displayed.
End measurement: tap .
9.5.7 Differential temperature
For this type of measurement, the Averaging option is also available.
See Averaging section.
The measurement can also be carried out using Smart Probes.
The following Smart Probes can be connected:
testo 915i (0563 4915), testo 115i (0560 2115 03)
just one Smart Probe testo 915i.
The measuring values (T1 and T2) for determining the differential
temperature can be recorded by pressing the button on the Smart
wireless Smart Probes such as the testo 115i or testo 915i can be
used. However, a maximum of just four Smart Probes can be used at
the same time.
Call up function: | Differential temp.
Start measurement: tap .
The measured values and the calculated differential temperature
Automatic display after connection of several Smart Probe testo 115i or
testo 915i during differential temperature measurement
If several temperature probes are connected in total (external probes and/or
testo 115i or testo 915i), the temperature probes are used for differential
temperature measurement according to the following procedure.
(maximum 1 possible)
No 1
Yes -
Yes 1
No
Yes 2
Probes
(testo 115i and/or
2
temperature probe by
temperature channel
t115i/915i
Cable probe (ext2):
T2 and dT are displayed as
Cable probe (ext2):
Temperature channel T2:
t115i/915i:
Temperature channel T
t115i/915i
Temperature channel T2:
t115i/915i:
Cable probe (ext2):
Temperature channel T2:
t115i/915i:
dT is displayed.
Temperature channel T3:
t115i/915i:
T4 and dT are not
•Cigarette smoke influences the measurement by more than 50 ppm.
An ambient CO probe (0632 1272) must be connected.
1
2
3
- Pipe volume < 100 l: Adjustment time 10 min, test time 10 min.
All values that can be modified have a dotted underlining.
9.5.11 CO ambient
The breath of a smoker influences the measurement by about 5
ppm.
•When using an ambient CO probe, note that:
The direction of flow of the gas has an effect on the accuracy of
measurement. Frontal flow onto the sensor leads to higher
readings. The best measurement results are achieved when the
probe is moved gently backwards and forwards.
•When using the ambient CO probe and the flue gas probe, note
that:
The probe must be in the fresh air (CO-free) during the zeroing
phase.
For this type of measurement, the Mean value calculation option is
also available. See Mean value calculation section.
9 Performing the measurement
Call up function: | CO Ambient
Start measurement: tap .
Reading is displayed.
End measurement: tap .
9.5.12 Pipe Commissioning (EU Regulation)
The pipe commissioning (using air or inert gas such as CO2 or N2) is a
tightness test for pipes, including fittings, but without gas appliances and the
relevant regulating and safety devices. The pipe commissioning is performed
after a load test has been successfully completed on newly laid gas pipes, or
after renovation of existing gas pipes, and is used for the acceptance of these
pipes. It shows up even the smallest leaks in gas pipes.
According to DVGW TRGI 2018 and ÖVGW G10, the stabilization time
and test time depend on the pipe volume.
- Pipe volume > 100 l to < 200 l: Adjustment time 30 min, test time
- Pipe volume > 200 l: Adjustment time 60 min, test time 30 min.
>
Connect the connector plug of the hose pressure connection kit
1
2
3
Pressurize the system.
4
5
The measuring value result can be assessed.
20 min.
(0554 1203) to the pressure test kit (0554 1213). Insert the pressure
adapter into the flue gas socket and lock by slightly turning it clockwise
(bayonet fitting).
Performing the measurement
The pressure socket of the instrument must be free (depressurized, not
closed).
Pressure zeroing has been carried out.
Call up function: | Pipe Comissioning
Set parameters or enter values.
All values that can be modified have a dotted underlining.
68
Once the pressure has built up, a stabilization time specified by DVGWTRGI 2018 should be observed to ensure that any possible pressure
fluctuations are not recorded in the measurement as well. The relevant
standard provides more detailed information.
Start stabilization time: tap . If applicable, follow instructions.
Reading is displayed.
Stabilization time is finished.
End stabilization time early: tap .
Measuring time starts.
The readings are automatically saved and displayed after the
measurement has been completed.
This measurement is performed to test the serviceability of an existing gas pipe
system (in contrast to the load test and pipe commissioning) and is used to check
the actual condition of the pipes. The pipe system may be in operation or disused.
Adhere to DVGW-TRGI 2018, worksheet G624!
Absolute pressure (parameter of the measuring location) must be
entered to obtain correct readings. If this is not known, it is advisable to
use the value 966 hPa (corresponds to 1013 hPa barometric, 400 m
above sea level).
> Insert the connector plug of the hose pressure connection kit (0554
1203) into the flue gas socket and lock it in place by turning it slightly
clockwise (bayonet fitting).
Performing the measurement
The pressure socket of the instrument must be free (depressurized, not
closed).
Pressure zeroing has been carried out.
Call up function: | Pressure Drop
1
Set parameters or enter values.
2
All values that can be modified have a dotted underlining.
Three circle diameters and three pipe lengths can be entered, which
are then used to calculate three partial volumes. The pipe volume is
calculated by adding these three partial volumes.
CO2 Carbon dioxide
qAnet Flue gas loss without consideration of the calorific value range
Effn Efficiency without consideration of the heat value range
qAgr. Flue gas loss with consideration of the calorific value range
Effg Efficiency with consideration of the calorific value range
Draft Flue draft ΔPDifferential pressure
CO Carbon monoxide
uCO Undiluted carbon monoxide
NO Nitrogen monoxide
NOx Nitrogen oxides λFuel-air ratio
AmbCO Ambient carbon monoxide
O2ref Oxygen reference ΔTDifferential temperature
Dew Pt Flue gas dewpoint temperature
Smoke 1
Smoke 2
Smoke 3
Smokenum
Only those measurement parameters and units that are enabled in the
reading display appear in the reading display, in the saved
measurement protocols and on the report printouts.
The settings only apply to the measurement type currently enabled.
Determine the measuring rate (1 sec - 120 sec). The required value can
4
5
Determine the measuring time (30 sec - 90 min). The required value
6
7
9Performing the measurement
Zeroing Gas Sensors
Zeroing of the gas sensors can be started manually.
| Zeroing Gas Sensors
The gas sensors are zeroed.
Next-Gen testo 300 without probe zeroing option in the flue gas:
The flue gas probe must be in fresh air during the zeroing phase (30
seconds)!
Next-Gen testo 300 with probe zeroing option in the flue gas:
The flue gas probe may already be in the flue gas duct during the
zeroing phase (30 seconds).
Mean value calculation
The mean value calculation option is only available in the country
versions x, y, z...
The mean value calculation option can only be set for the
following measurement types: Flue gas, Draft, Differential
pressure, Differential temperature and CO Ambient.
Call up function: | Options | Mean value calculation | On
The list for mean value calculation is opened.
The start button changes to .
be entered directly in the field on the first two lines of the display.
The printer is switched on and within wireless range.
1
2
Tap Print values.
9.7.2
including
- Own company data
- Format and print
- Customer data
- Comments and pictures
- Select measurements
- Signature
- via QR Code
The current readings are printed via a Bluetooth® printer (accessories: Testo
printer 0554 0621).
Carry out print text settings
Print text settings can be carried out and the reading printout can be
supplemented with individual creator information (header: company address;
footer: name of technician), see Section 8.2.5.4 Own company address.
Print current readings
Print data
tap .
Protocols menu is opened.
The protocol is created and sent to the printer.
The protocol is printed.
Bluetooth® is always activated on the Next-Gen testo 300.
Save
The measurement data from the last measurement carried out of each
measurement type is saved on the measuring instrument.
A sensor is able to recover. It is therefore possible for the sensor status
10.3.2
10.4
>
If the housing of the measuring instrument is dirty, clean it with a damp
Maintenance
Fr d
Service
Testo recommends an annual check of the Next-Gen testo 300; this
can be carried out by a Testo-authorized service center. Please
Fr d
contact for more information.
Calibration
The measuring instrument is supplied with a calibration protocol as
standard. To maintain the specified accuracy of measurement results,
Testo recommends an annual check of the Next-Gen testo 300 by a
Testo-authorized service center.
Please contact for more information.
Check instrument status
Sensor diagnosis
The status of the sensors can be displayed.
To replace expended sensors, see Section "Replace sensors".
Call up function: | Sensor Diagnosis
Sensor diagnosis is displayed.
display to change from not OK to OK.
Error list
Instrument errors that have not yet been rectified can be displayed.
Call up function: | Erro r list
Error list is displayed if there are errors present.
Clean the measuring instr um ent
cloth.
Use distilled water or a weak solvent to clean the flue gas analyzer.
Measuring instrument is open, see Section Open measuring
instrument.
1
Unlock retaining bracket and open
2
Remove faulty sensor from the slot.
3
Insert new sensor in the slot.
4
Close the retaining bracket with an audible "click".
5
Close the measuring instrument.
10 Maintenance
Replace O2 sensor
out.
Make sure that the socket on the
sensor circuit board is correctly
connected to the contact plug.
After replacing an O2 sensor, wait for an acclimatization time of 15 min
to elapse before using the instrument.
When replacing an O2 sensor and when there is an interruption of the
power supply for more than 10 hours, we recommend an
acclimatization time of 1 hour for compliance with measuring accuracy.