Testo 327 Operating Manual

Flue gas analyser, country-specific version GB

Instruction manual en

testo 327

Contents2

Contents

Contents ................................................................................................2

Safety and the environment ....................................................................3

EC declaration of conformity ..................................................................7

Product description ................................................................................8

First steps ..............................................................................................9

Using the product ..................................................................................12

Preparing for measurement ....................................................................12

Performing the measurement ..................................................................14

Checking the instrument ........................................................................18

Maintaining the product ........................................................................19

Tips and assistance ..............................................................................25

Accessories and spare parts ................................................................26

Appendix ..............................................................................................27

Safety and the environment 3

Safety and the environment

About this document

 Please read this documentation through carefully and familiarise yourself with

the product before putting it to use. Keep this documentation to hand so
that you can refer to it when necessary. Hand this documentation on to any
subsequent users of the product.

 Pay particular attention to information emphasised by the following symbols:

· With the signal word Warning!:
Warns against hazards which could result in serious physical injury if the
precautionary measures indicated are not taken.

· With the signal word Caution!:
Warns against hazards which could result in minor physical injury or damage
to equipment if the precautionary measures indicated are not taken.

· Additional information.

Avoiding personal injury/damage to equipment

 Do not make measurements with the measuring instrument and its sensors

on or near live components unless the instrument is expressly approved for
current/voltage measurements!

 Never store the measuring instrument together with solvents and do not use

any desiccants.

 Only operate the measuring instrument properly, for its intended purpose

and within the parameters specified in the technical data. Do not use force.

 Only carry out the maintenance and repair work that is described in the

documentation. Follow the prescribed steps exactly. Only use 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.

 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.

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Specifications4

Products with BluetoothÒ (Option)

Changes or modifications, which are not expressly approved by the responsible
official body, can lead to a withdrawal of operating permission.

Interference with data transfer can be caused by instruments which transmit on
the same ISM band, e.g. microwave ovens, DECT telephony, non-secure
software in cellphones when telephoning, transmitting/receiving text messages
etc.

The use of radio connections is not allowed in e.g. aeroplanes and hospitals.
For this reason, the following point must be checked before entering:

Deactivate Bluetooth function

Main menue - Settings - Buetooth - deactivate Bluetooth (Off)

Protecting the environment

 Take faulty rechargeable batteries/spent batteries to the collection points

provided for them.

 Send the product back to Testo at the end of its useful life. We will ensure

that it is disposed of in an environmentally friendly manner.

Specifications

Functions and use

The testo 327 is a hand-held measuring instrument for the professional flue gas
analysis of domestic and light commercial gas and oil boilers and appliances.
This includes condensing boilers and gas heaters. The unit is designed to carry
out tests shown in BS 7967, and has a timed tightness test, let by test and a
timed CO function.

These systems can be adjusted using the testo 327 and checked for
compliance with the applicable limit values.

The testo 327 is available in four versions; the scope of function varies
according to the version:

· testo 327 O

· testo 327 CO: Infrared interface

· testo 327-1 (O2, CO): Infrared interface

· testo 327-2 (O2, CO): Infrared / IRDA interface, memory, automatic sensor

: Infrared interface

2

diagnosis, option: Bluetooth (data interface)

Specifications 5

Warning The testo 327 must not be used in areas at risk of explosion,
for long-term measurements or as a safety (alarm) device!

The testo 327 with the Bluetooth option may only be operated in countries in
which it is type approved (see Technical Data).

Technical data

Display variables [units] Measuring range/resolution Accuracy/response time

Oxygen, via internal electro-chemical sensor (not 327 CO):

O2content [%],
O2air supply [%],
Reference value O2ref [%] 0...21% / 0.1% ±0.2% / t90 <40s

Carbon monoxide, 327-1:

CO content [ppm, mg/m³] 0...4,000ppm / 1ppm ±20ppm (0...400ppm), ±5% of reading (401...1,000ppm),

(H2share <10%) ±10% of reading (1,001...4,000ppm) / t90 <60s

Carbon monoxide, via internal electro-chemical sensor (only 327-2 with option COH2):

CO content [ppm, mg/m³] 0...8,000ppm / 1ppm ±20ppm (0...200ppm), ±5% v. Mw. (201...2,000ppm),

±10% of reading (2001...8,000ppm) / t90 <40s

Ambient Carbon monoxide, via internal electro-chemical sensor:

Ambient CO content
amCO [ppm] 0...2,000ppm / 1ppm ±10ppm (0...100ppm), ±10% of reading (>100ppm) /

t90 <40s

Temperature, via type K thermocouple of flue gas probe (NiCr-Ni):

Flue gas temperature FT,
Flue gas dew point ATP,
Ambient air AT -40...+600°C / 0.1°C, ±0.5°C (-40...100°C), ±0.5% of reading (>100°C),

-40...1,112°F / 0.1°F ±0.9°F (-40...212°F), ±0.5% of reading (>212°F) /
t98 <50s (TE 0.5mm);<100s (TE 1mm)

Temperature, via differential temperature set 0554 1208:

Flue gas socket T1 [°C, °F],
Sensor socket T2 [°C, °F] -40...+600°C / 0.1°C, ±0.5°C (-40...100°C), ±0.5% of reading (>100°C),

-40...1,112°F / 0.1°F ±0.9°F (-40...212°F), ±0.5% of reading (>212°F) /
t98 <50s (TE 0.5mm);<100s (TE 1mm)

Pressure, via internal differential pressure sensor:

Flue draught Drght [mbar,
hPa, inW, in Hg] -40...40hPa / 0.01hPa ±0.02hPa (-0.50...0.60hPa), ±0.03hPa (0.61...3hPa),

±1.5% of reading (>3hPa) /-

Flue draught Drght, with option
of precision draught [Pa] -100...100Pa / 0.1Pa ±3Pa / -

Pressure and tightness test via internal differential pressure sensor, with differential pressure set 0554 1203:

Differential pressureΔp [hPa] -200...200hPa / 0.1hPa ±0.5hPa (0.0...50.0hPa)

(with option precision ±1% of reading (50.1...100.0hPa)
difference pressure: 0.01hPa) ±1.5% of reading (100.1...200.0hPa)

Efficiency, calculated:

Efficiency

2

η

[%],

Efficiency η+3)[%] 0...120% / 0.1% ±0.2% / -

1)

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Specifications 6

Display variables [units] Measuring range/resolution Accuracy/response time

Flue gas loss, calculated

1)

Flue gas loss qA2)[%], 0...99.9% / 0.1% - / ­Flue gas loss qA+3)[%], -20.0...99.9 / 0.1% - / -

Air ratio (not 327 CO)

Air ratio λ[-] 1...20 / 0.01 - / -

Carbon dioxide

CO2content [%] 0...CO

1) Recommended minimum duration of measurement to guarantee correct readings: 3min, 2) Calorific value range not taken into account,

3) Calorific value range taken into account

Calculation formulae for calculated display variables

· See Appendix

Fuels

· Quantity: 5

· Designation/fuel parameters: See Appendix

Ambient conditions

· Operating temperature: -5...45°C/23...113°F

· Storage temperature for measuring instrument:

-20...50°C/-4...122°F,
Li-ion rechargeable battery: 0...35°C/32...95°F

Housing

· Material: ABS/PA/TPU

/ 0.01% - / -

2max

Warranty

· Measuring instrument, flue gas probe: 24 months

· Measuring cells: 24 months

· Thermocouple: 12 months

· Rech. batt.: 12 months

Option Bluetooth (testo 327-2 only)

· Type-designation: BlueNiceCom IV

· Bluetooth Qualified Product Notice:
BNC4_HW2x_SW2xx

· Bluetooth listing identifier: B013784

· Bluetooth listing company: 10274

Range <10m

· Dimensions: 240 x 90 x 58mm

· Weight: Approx. 620g

· Protection class: IP40

Voltage supply

· Current source: Li-ion rechargeable battery

3.7 V/1.4 Ah (0515 0114) / 3.7 V/2.4 Ah (0515 0100),
mains unit 6.3V/1.2A

· Battery life (measuring gas pump on, display light off):
Approx. 4 h (0515 0114) / approx. 10h (0515 0100)

· Battery charge time: Approx. 5-6 h

Display

· Type: Illuminated LCD

· Updating of readings: 1/s

Directives, standards and tests

Option Bluetooth® Certification

EU countries

Belgium (BE), Bulgaria (BG), Denmark (DK),
Germany (DE), Estonia (EE), Finland (FI),France (FR),
Greece (GR), Ireland (IE), Italy (IT), Latvia (LV),
Lithuania (LT), Luxembourg (LU), Malta (MT),
Netherlands (NL), Austria (AT), Poland (PL),
Portugal (PT), Romania (RO), Sweden (SE),
Slovakia (SK), Slovenia (SI), Spain (ES), Czech
Republic (CZ), Hungary (HU), United Kingdom (GB) and
Republic of Cyprus (CY).

Other EFTA Countries

Iceland, Liechtentein, Norway and Switzerland

Non-european countries

Japan, Columbia, Turkey

· EC Directive: 2004/108/EEC

· Tests: EN 50379, Part 2 (O2, °C, hPa),

Part 3 (CO), testo 327-2 with option
COH2 additionally: EN 50379, Part 2
(CO)
CO accuracy: independantly tested to
BS7967

EC conformity declaration 7

EC declaration of conformity

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Product description8

Product description

At a glance: Measuring instrument

 Head: IR interface (327-2: IRDA) for

connection to Testo protocol printers,
ON/OFF switch ( ),

condensate outlet.

Caution! Risk of injury from
infrared beam!

 Do not point infrared beam at people's

eyes!

 Display.

Display symbols

: Battery capacity( : full, : empty)
: Print function: sends data

 Control keys

Key functions

: Function keys (3x): shows relevant function on

the display.

: Up/down keys: changes display view.
: Light key: switches display light on/off.
: Menu key.
: Cancel key.

 Sensor socket for TC temperature probe, flue gas socket for flue gas probe,

gas outlet, mains socket

 Sides: window of condensate trap with fill level display
 Rear: service compartment (battery, measuring cells)
 Rear: magnets for fixing measuring instrument to metallic surfaces.

Warning! Strong magnets can cause damage!

 Keep well away from products which could be damaged through the effects of

magnetism (e.g. pacemakers, monitors, computers, credit cards).

 Rear: eyelet for attaching a carrying strap (accessory).

First steps 9

At a glance: Flue gas probe

 Removable filter chamber with window



and particle filter

 Probe handle
 Connecting cable
 Connector for measuring instrument







First steps

Charging rechargeable battery

Charge the rechargeable battery fully before using the measuring instrument.
The rechargeable battery can only be charged at an ambient temperature of

0...+35 °C. If the rechargeable battery pack has discharged completely, the
charging time at room temperature is approx. 5-6 hrs.

Charging tthe rrechargeable bbattery iin tthe mmeasuring iinstrument:



 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.

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Charging tthe rrechargeable bbattery iin ccharger 00554 11087 ((accessory):



Refer to the documentation that comes with the charger.

First steps10

Operation with the mains unit

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.

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 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.

Switching on/off

Switching tthe iinstrument oon:



 Press .

- Initialisation phase:

· All display segments are lit (length of time: 3 s).

· Serial number, firmware version, instrument designation, date, time and country-

specific version of instrument are displayed (length of time: 5 s).

- The Measure flue gas option is displayed.

Switching tthe iinstrument ooff:



 Press .

- sometimes: The pump starts and the measuring cells are rinsed until the
switch-off thresholds (O

>20 %, other parameters 50 ppm) are reached.

2

Rinsing lasts no more than 2 minutes.

Performing instrument settings

Performing ssettings:



1 Press .
2 Select Settings using / and confirm entry with the OK function key.