testo 316-1-EX Gas Leak Detector Instruction Manual

316-1-EX Gas Leak Detector
Instruction Manual

316-1-EX Gas Leak Detector

About this document

• The instruction manual is an integral part of the instrument.
•  Please keep this documentation available for future reference.
• Always use the complete original instruction manual.
• 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.

Safety and disposal

2.1 Security
General safety instructions

• Only operate the product properly, for its intended purpose, and within the parameters specified in the technical data.
• Do not apply any force.
• Do not operate the instrument if there are signs of damage on the housing, mains unit or connected cables.
• Dangers may also arise from objects to be measured or the measuring environment. Always comply with the locally valid safety regulations when carrying out measurements.
• Do not store the product together with solvents.
• Do not use any desiccants.
• Only perform maintenance and repair work on this instrument that is described in this documentation. Follow the prescribed steps exactly when doing the work.
• Use only original spare parts from Testo.
• Only use the original mains unit from Testo.

Batteries

• Improper use of batteries may cause the batteries to be destroyed, or lead to injury due to current surges, fire or escaping chemicals.
• Do not expose the batteries to heavy impacts, water, fire or temperatures in excess of 60 °C.
• In the event of contact with battery acid: rinse affected areas thoroughly with water, and if necessary consult a doctor.
• Only charge the battery using the original Testo mains unit supplied.
• Immediately stop the charging process if this is not completed in the given time.

Warnings
Always pay attention to any information denoted by the following warnings. Implement the precautionary measures specified!
DANGER
Risk of death!
WARNING
Indicates possible serious injury.
CAUTION
Indicates possible minor injury.
CAUTION
Indicates possible damage to equipment.
2.2 Disposal

• Dispose of faulty rechargeable batteries and spent batteries in accordance with the valid legal specifications.
• At the end of its useful life, deliver the product to the separate collection point for electric and electronic devices (observe local regulations) or return the product to Testo for disposal.
• WEEE Reg. No. DE 75334352

Product-specific information

• Do not carry out measurements on live components.
• Do not operate the instrument in environments above 80 %RH (condensing).
• Observe the permissible storage and transport temperatures and the permissible operating temperature (e.g. protect the measuring instrument from direct sunlight)!
• Always carry out a function test before searching for gas leaks.
• If the instrument is misused or subjected to force, all warranty claims will be voided!
• Do not allow the sensor to come into contact with moisture or acids, as it will react cross-sensitively.

Intended use
The testo 316-1-EX is a gas leak detector for the short-term detection of leaks in gas systems in potentially explosive atmospheres of the class
ATEX II 2 G Ex ib IIC T1G according to Directive 2014/34/EU (ATEX).
The following substances can be detected:

• Methane CH4
• Propane C3H8
• Butane C4H10
• Hydrogen H2

The instrument is not suitable for precise measurement of the gas concentration.
ATTENTION
Explosive limits of flammable substances
A flammable substance in the air has a lower explosive limit (LEL) and an upper explosive limit (UEL).
The air/gas mixture is flammable anywhere between these two limits, potentially leading to an explosion (critical range).
Below the LEL, the mixture is too lean for an explosion, and above the
UEL it is too rich (non-critical range).
The explosive limits depend on the substance:

• Methane CH4: LEL 4.4 vol.% / UEL 16.5 vol.%
• Propane C3H8: LEL 1.7 vol.% / UEL 10.9 vol.%
• Butane C4H10: LEL 1.4 vol.% / UEL 9.4 vol.%
• Hydrogen H2: LEL 4.0 vol.% / UEL 77.0 vol.%

ATTENTION
Restrictions on the field of use

• Do not use the instrument as a monitoring instrument for personal safety! The instrument is not protective equipment!
• Do not use the instrument as a gas analyzer! The sensor detects almost all combustible gases alike.

Product description
5.1 Instrument overview

Symbol explanation

| Do not allow children under 6 years of age to play with batteries.
---|---
| Do not throw batteries in the trash.
| Do not charge batteries.
| Do not place batteries near fire.
| Batteries are recyclable.
| Do not charge the rechargeable battery in potentially explosive atmospheres.

First steps
6.1 Getting to know the product
6.1.1 Switching the instrument on and off
Switching on
Only switch on the instrument in fresh air, since automatic zeroing is carried out when the instrument is switched on. The ambient temperature and ambient humidity during zeroing should correspond to the ambient conditions at the measuring location. If necessary, zero again manually at the measuring location (switch off and on again).
If the unit is not used for a prolonged period of time, the sensor will become contaminated. Particularly if the instrument has not been in operation for a prolonged period of time (> 2 weeks), it should be left switched on for a while before being used. The longer it has not been in operation, the longer this additional warming-up phase should be.
Please note that the instrument switches itself off by default after 10 min of inactivity.
1 Press and hold down (1 sec) the On/Off key.
Warm-up phase (HEAT)
The instrument starts up. With regular use, the warm-up period takes approx. 20 sec and is symbolized by the text “HEAT” and a countdown.
As long as the sensor LED is flashing orange, the instrument is not ready for use.
Following the warm-up period, the measurement view is displayed.
Self-cleaning (CLN)
If the sensor is dirty, the warm-up phase is followed by the sensor cleaning phase. This usually happens when the instrument has not been used for several days. The self-cleaning is symbolized by the text “CLN” and a countdown.
Switching off
CAUTION
Caution! Risk of burns due to hot sensor head after prolonged operation.

• Before touching the sensor head or packing the instrument: switch instrument off and let the sensor head cool down.

1 Press and hold down (1 sec) the On/Off key.
The instrument is switched off.
Auto OFF
After 10 minutes of inactivity (no user input, no gas concentration above the warning threshold), the instrument switches itself off. The switch-off is signalled beforehand by an alarm sound, red flashing of the sensor LED and a 10 sec countdown.
You can prevent the instrument from switching off by pressing any key within 10 seconds.
Enabling/disabling the Auto-OFF function:
1 Press the Sound and UNIT keys simultaneously for 1 sec.
Enabling/disabling is confirmed by “AOFF ON” or “AOFF OFF”.
6.2 Establishing a Bluetooth® connection
The instrument can be connected to the testo Smart App via Bluetooth® connection.
The gas leak detector is switched on.
6.2.1 Establishing a Bluetooth® connection to the testo Smart App
To establish a connection via Bluetooth® , you need a
tablet or smartphone with the Testo Smart App already installed on it.
You can get the App for iOS instruments in the App Store or for Android instruments in the Play Store.
Compatibility:
Requires iOS 12.0 or later/Android 6.0 or later, requires Bluetooth® 4.2.

https://qr.testo.com/ldtw8z

1. Open the testo Smart App.
   The app automatically searches for Bluetooth® devices in the vicinity.

2. In the Bluetooth menu, check whether the required instrument is connected.
   If necessary, switch the instrument to be connected off and on again to restart the connection mode.

Using the product
The gas leak detector can be used in conjunction with the testo Smart App.
7.1 Controls
The instrument is switched on.
The app is installed on the smartphone and connected to the instrument via Bluetooth®.
Settings and controls are primarily carried out on the instrument and are transferred to the app. To a lesser extent, control via app is also possible (selection of gas type).

Additional symbols on the user interface of the app (not numbered)

| One level back
---|---
| Exit view
| Share measurement data/report
| Searching
| Favourite
| Deleting
| Further information
| Display report
| Multiple selection

The Main menu can be accessed via the icon at top left. To exit the main menu, select a menu or right-click on the guided menus. The last screen displayed is shown.

| Measure|
---|---|---
| Customer
| Memory
| Sensors
| Settings
| Help and Information
| Other applications

7.1.1 Implementing settings
Selecting, opening and setting functions

1. Press the relevant key to select the functions.

Secondary assignment (long press)
All keys with a white corner have a secondary assignment, which can be selected by pressing and holding the key (1 sec).
Adjustable functions
Ensure correct settings: all settings are transferred immediately. There is no Cancel function.

On/Off (long press)
| Switches the instrument on or off
Measurement parameter
| Cycle through CH4 (methane), C3H8 (propane), C4H10 (butane) or H2 (hydrogen)
Display illumination / sensor LED (long press)
| OFF (display illumination and sensor LED not active) or ON (display illumination and sensor LED active)
Function| Setting options/comments
---|---
Alarm sound
| ON (acoustic alarm on) or OFF (acoustic alarm off).
The frequency of the alarm sound increases as the concentration increases.
Unit (long press)
| Switch between PPM and %LEL
Measuring mode
| MODE 1 for gas detection MODE 2 for locating leaks
Max. zeroing (long press| Zero maximum reading
Zeroing| Zero current reading, up to 250 ppm can be suppressed. Symbolized by an arrow pointing downwards on the display.

7.2 Carrying out a function test

1. Apply low-concentration gas to the sensor (max. 10 sec).

If the sensor does not respond (no alarm), the instrument is defective and must no longer be used. The instrument must be taken to the service centre for repair.
Due to the selectivity of the sensor, gas equivalents are not suitable for checking the function and especially not for calibrating the sensor.
7.3 Carrying out gas detection
ATTENTION
Destruction of the sensor due to external influences!

• Do not expose the sensor to high concentrations of
  H2S (hydrogen sulphide), SOx (sulphur dioxides), Cl2 chlorine), or HCl (hydrogen chloride).

•  > Prevent alkaline materials or water from coming into contact with the sensor.

•  > Do not expose the sensor to moisture or frost.

Have the instrument serviced annually by the manufacturer.
Testing natural gas lines or hydrogen lines:
Methane (main component of natural gas) or hydrogen are lighter than air, detection should be carried out above the pipe / suspected leak. Testing propane and butane gas lines: Propane and butane are heavier than air, detection should be carried out below the pipe / suspected leak, starting from the bottom and working upwards.
Selecting the gas to be detected

1. Select the gas types via the GAS key or the testo Smart App using the 3-point menu in the top right corner of the output field

After switching on the instrument, the process of cycling through starts with methane (CH4).
Automatic identification of common gas types
The gas is automatically detected and indicated by a flashing gas icon on the display if a gas concentration currently applied to the sensor has characteristics of a different gas type than is currently selected.
For technical reasons, this is subject to uncertainty and is intended as a support for users, and must therefore always be checked by the user.
Selecting the mode

1. Press the MODE key to switch between modes.

MODE 1 is suitable for measuring the general gas concentration in indoor areas.
The gas concentration is indicated by the increasing bar display.
MODE 2 is suitable for locating a leak. In this mode, rising or falling concentration values are output.
At the beginning, two bar segments are displayed in the middle.
At the same time, the sensor LED flashes in a colour corresponding to the concentration value and an audiosignal is emitted at the same frequency. As the concentration increases, a eflection to the right is displayed.
The frequency of the flashing/audio signal increases.
As the concentration decreases, a deflection to the left is displayed. The frequency of the flashing/audio signal decreases.

• If the concentration remains unchanged, the deflection moves back to the centre. The deflection is reset manually using the [–> 0 <–] key

Carrying out the measurement

1. Move the sensor head as close as possible and at low speed (approx. < 2 cm per second) over the components that are to be checked for leaks.
   The surface of the sensor must not be covered.

• Concentration < 100 ppm: The sensor LED and the display illumination light up green. In addition, the bar display increases.
• Concentration > 100 and < 999 ppm: The sensor LED and the display illumination light up yellow. In addition, the bar display increases.
• Concentration > 999 ppm: The unit changes to VOL% and the bar display increases.
• Concentration > 9999 ppm / > 0.99 VOL%: The sensor LED and the display light up red (alarm threshold).

When the lower explosive limit is reached, “>LEL” is displayed. Higher values are not displayed.
To locate the leak, it is advisable, in the case of these larger leaks, to switch to MODE 2 in order to receive feedback via audio and flashing signals.
If the warning threshold (100 ppm) is exceeded, the sensor LED and display illumination light up yellow. If the acoustic alarm is enabled, an additional warning sound is emitted when the warning threshold is exceeded, the frequency of which increases as the concentration increases, and changes to a continuous tone when the second alarm
threshold (10,000 ppm) is exceeded.
Changing units
By default, the display shows ppm (concentration in parts per million). From a concentration of >999 ppm, the display changes to vol% (1000 ppm=0.1 vol%). Higher concentrations in ppm are also displayed in the app. In addition, %LEL (the percentage of the lower explosive limit that has been reached) can be selected.

1. Press the unit key to change the unit.

Carrying out manual zeroing
The zero point can only be set manually if the currently detected gas concentration is below the max. 250 ppm (max. 250 ppm can be suppressed).
For example:

•  150 ppm (≤ 250 ppm): are completely suppressed (display: 0 ppm)
• 1000 ppm (> 250 ppm): 250 ppm are suppressed (display: 750 ppm)

Gas concentrations present at the time of zeroing are suppressed by zeroing. As a result, the displayed reading no longer corresponds to the real gas concentration.
The instrument is in measurement view.
1 Briefly press [–> 0 <–].
The zero point for the current reading is reset or the current suppression is cancelled.
On instruments with a display, the suppression of the reading is symbolized by an arrow pointing downwards on the display.
The maximum reading can be zeroed using [max –> 0 <–].
After the measurement
1 Ventilate the sensor thoroughly after each use. To do this, place the instrument in fresh air for approx. 2 minutes before using it again.

Maintaining the product

8.1 Charging the rechargeable battery
DANGER
Do not charge the rechargeable battery in potentially explosive atmospheres!
Only charge the battery using the original Testo mains unit supplied.
The instrument indicates that the battery needs to be charged via a flashingbattery symbol.

1. Connect the instrument to the mains via the mains unit. To do this, insert the plug of the mains unit into the charging socket on the underside of the instrument.

When the mains unit is plugged in during operation, the instrument switches off due to ATEX regulations.
The instrument can become very warm during charging and should not be held in your hand.
8.2 Cleaning the instrument

1. If the housing of the instrument is dirty, clean it with a damp cloth.

Do not use any aggressive cleaning agents or solvents! Mild household cleaning agents and soap suds may be used.
Storage & transportation
To prevent contamination of the sensor, please do not store or transport the instrument in an environment where any tobacco smoke, foul air, oils, greases, silicones, evaporating liquids or gases are present. Any sensor that is contaminated as a result of storage or transportation must be cleaned before use, see Cleaning the sensor.
Regular inspection
Testo recommends having the gas leak detector inspected by an authorized service centre every year.
8.3 Cleaning the sensor
Tobacco smoke, dirty air, oils, greases, silicones and evaporating liquids or gases can leave deposits on the sensor surface. Possible consequences are reduced sensitivity, distorted displays of gas concentration or display of a background concentration. Clean the sensor if necessary

1.  Switch on the instrument, allow it to initialize and then switch it off. Repeat this procedure several times.
2. If it is dirty, clean the sensor head with a soft, dry cloth.

Switching on regularly
If the instrument is used infrequently, deposits may build up on the sensor. Switching the instrument on prevents these deposits from building up on the sensor. Testo recommends switching the instrument on regularly to avoid deposits building up on the sensor.
Changing the sensor head
The instrument has a permanently installed sensor head that can only be replaced by Testo Customer Service.

Technical data for testo 316-1-EX

Propane (C3H8): 50 ppm to 1.9 vol.% Hydrogen (H2): 50 ppm to 4.0 vol.% Butane (C4H1o): 50 ppm to 1.5 vol.%
Resolution| 1 ppm 0.1 vol.% 1 %LEL
Response time| Response time < 2 sec
Leak alarm| 3-colour LED on sensor head 3-colour display backlighting Acoustic APP
Operating temperature| -5 to +50 °C
Operating humidity| 0 to 80 %RH
Operating altitude| 5 2000 m
Storage temperature| -20 to +50 °C
Charging temperature| -5 to +45 °C
Battery type| 6V rechargeable battery pack 5x NiMH AA USB charger (mains unit from Testo) with connection via USB 2 Micro-B
Max. power rating| 5W(%5 VDC;Urn= 7.5V
Battery life| >10 h
Pollution degree| PD2
IP class| IP40
Dimensions| 150 x 66.5 x 37.5 mm (L x W x H) Length with gooseneck arm 545 mm
Weight| 425 g
EX-protection| ATEX II 2 G Ex ib IIC T1 Gbc

Tips and assistance
10.1 Questions and answers

zero point has stabilized.
Instrument does not switch to measuring
mode (remains in warmup phase)| Battery voltage too low| Charge the instrument.

10.2 Error codes

The error code is shown on the display.
10.2.1 Hard Reset

1. If you encounter any problems with the firmware, press and hold the ON/OFF key for a long time (4 sec.) to perform a reset.

10.3 Accessories and spare parts

Support
You can find up-to-date information on products, downloads and links to contact addresses for support queries on the Testo website at: www.testo.com.
If you have any questions please contact your local dealer or the Testo Customer Service. You can find contact details on the back of this document or online at www.testo.com/service-contact.

Testo SE & Co. KGaA
Celsiusstr. 1
79822 Titisee-Neustadt
Germany
Phone: +49 (0)7653 681-0
Email: info@testo.de
www.testo.com

References

• testo.com/service-contact
• Redirect Notice

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