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Bedienungsanleitung de
Instruction manual en
testo 316-4
Leakage detector for refrigerants
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Safety and environment12
Safety and environment
On this document
i Read this document through carefully, and familiarize yourself with the product before
you put it to use. Keep this documentation close to hand in order to be able to
consult it if required. Pass this documentation on to later users of the product.
i Pay particular attention to information which is marked with the following symbols:
· With the signal word Warning!:
Warns of dangers which can lead to serious injury if the prescribed safety measures are
not taken.
· With the signal word Attention!:
Warns of dangers which can lead to light injuries or material damage if the prescribed
safety measures are not taken.
· Important information
Avoiding personal injury/material damage
i Use the measuring instrument only for the purpose for which it is intended, and within
the parameters stated in the technical data. Do not use force.
i If damage, malfunction or incorrect display occur, have the instument checked. Do
not use faulty instruments.
i Do not carry out measurements with the product on or near live parts.
i Never store the product together with solvents, acids or other corrosive substances.
i Carry out only repair and maintenance work described in the instruction manual.
Observe the prescribed handling steps. Use only original spare parts from Testo.
Protecting the environment
i Dispose of faulty rechargeable batteries/empty batteries at the proper collection
points.
i Send the product back to Testo at the end of its life. We will ensure that it is disposed
of in an environmentally friendly manner.
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13
Specifications
Functions and application
The testo 316-4 is a leakage detection instrument for the fast and reliable detection of
leakages on refrigeration systems and heat pumps. Gas concentrations are indicated
optically and audibly. The instrument can be adapted to your requirements thanks to its
exchangeable measurement head
· 0554 3180: Refrigerant measurement head for R134a, R22, R404a, H2 and further CFC, HCFC, HFC
· 0554 3181: NH
3
-measurement head for ammonia.
(Details see Tips and assistance)
The testo 316-4 is not a piece of protective equipment! Do not use the testo 316-4
as a monitoring instrument for your personal safety!
Technical data
Technical measuring data
· Sensor: Gas-sensitive semi-conductor
· Reaction threshold: <3g/a / <0.1oz/yr
· Reaction time: <1s
Further instrument data
· Operating conditions: -5 to 50°C/20 to 80%RH, with
limited functionality (only audible indication, reduced
accuracy,reduced operating time) can also be used in
the range -20°C to -50°C
· Storage/transp. conditions: -25 to 70°C/ 20 to 80%RH
· Minimum bend radius gooseneck: 40 mm
· Current supply: Rech. battery pack NiMh
· Battery life: 8h
· Charging time: approx. 8h
· Dimensions: 57 x 190 x 42mm
· Weight: 348g
Guidelines, norms and tests
· EC guideline: 89/336/EEC
· based on SAE J1627
Warranty
· Duration: 2 years
· Warranty conditions: see warranty booklet
Specifications
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Product description14
Product description
At a glance
Measurement head with gas sensor,exchangeable.
Flexible probe shaft.
Top:earplug socket, mains unit socket.
Display.
Operating buttons.
Display and operating elements
Display Meaning
Colour of the display illumination
green No gas detected.
red Gas detected.
Symbols
Gas concentration trend display: No gas detected / Gas detected.
Gas concentration trend display: First alarm threshold / Second alarm threshold.
Gas concentration maximum value display : Maximum gas concentration detected
since the last reset of the maximum display or since the last time the instrument
was switched on.
Type of gas to be detected.
Switch-over search mode / localization mode.
Battery capacity: Battery full / battery partly discharged / remaining capacity < 15min.
Audible signal: on / off.
Buttons Function
Instrument: on / off.
Type of gas to be detected: Select.
Audible signal: on / off.
Switch-over search mode / localization mode.
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Product description 15
Audible notification
The audible notification takes place with a signal tone whose interval frequency
increases with increasing gas concentrations. A continuous signal sounds when the
second alarm threshold is passed.
First steps
²
Charging bbattery:
Use only the original mains unit 0554 1093!
The rechargeable battery can only be charged at an ambient temperature
of ±0 to 45°C.
If the rechargeable battery is completely discharged, charging takes approx. 8h.
In order to ensure as long a battery life as possible, the battery shoud always be
completely discharged and recharged.
The instrument can continue to be used during charging.
1 Plug the mains plug into the country-specific adapter and then plug into the mains
socket.
2 Plug the instrument plug into the mains unit socket of the instrument.
- Charging begins: , and light up alternately.
- Charging stops automatically when the rechargeable battery is full: lights up.
²
Using tthe eearplug:
Use only the original earplug 0554 5001!
The instrument loudspeaker is deactivated when the earplug is plugged in!
i Plug the connection plug of the earplug into the earplug socket of the instrument.
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Using the product16
Using the product
²
Switching oon tthe iinstrument:
1 Press .
- All display segments light up (duration: 3 sec), the suction pump starts
(ventilator noise).
- The initialization phase is carried out (heating, adjustment, auto-test). The
remaining duration is displayed.
- After the end of the initialization phase:
OK lights up (duration: 2 sec).
Attention! Danger of burning from the hot measurement head after
prolonged use!
i Before touching the measurement head or packing up the instrument,
switch off and allow to cool.
²
Selecting ggas tto bbe ddetected ((only wwith mmeasurement hhead 00554 3180):
i Press several times, until the arrow lights up under the desired gas type.
For other gas types, please consult the table in the chapter Tips and assistance .
²
Change ooperating mmode:
After switching on, the instrument is automatically in search mode. In this mode the
instrument is optimized for fast leakage detection and the approximate localization of
a possible leak, by high sensitivity to the change in the signal.
If a leak has been found in search mode, and its approximate position has been
established, it can easily be localized in the localization mode, by optimization of the
sensitivity to the leakage quantity.
i Press .
- lights up in display. Localization mode is activated.
i Pr
ess again.
- disappears. Search mode is activated again.
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Using the product 17
²
Carrying oout ggas ddetection:
Attention! Destruction of the sensor by non-desorbant substances (e.g. oils)!
i Do not use the instrument in dirty surroundings.
i Move the measurement head as close as possible, and slowly (3 to 5 cm per
second) over the parts which are to be examined for leaks.
²
Resetting mmaximum vvalue ddisplay:
i Press and simultaneously.
²
Switching iinstrument ooff:
i Press and hold until the display switches off.
Maintaining the product
±
Charging tthe rrechargeable bbattery:
See chapter “First steps”
±
Changing tthe mmeasurement hhead:
Attention! Danger of burning from the hot measurement head after
prolonged use!
i Before touching the measurement head or packing up the instrument,
switch off and allow to cool.
1 Unscrew the measurement head and remove it from the probe shaft.
2 Plug the new sensor head on to the probe shaft and screw tight.
±
Cleaning tthe ssensor:
Tobacco smoke, dirty air, oils, grease and evaporating liquids or gases can lead to
deposits on the surface of the sensor. This can result in reduced sensitivity and
falsified display of concentrations. If necessary clean the sensor.
i Switch on the instrument, wait until the end of the initialization phase and switch
off again. Repeat this procedure several times.
±
Cleaning tthe mmeasurement hhead:
i If dirty, clean the measurement head with a soft dry cloth.
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Maintaining the product18
±
Cleaning tthe hhousing:
i If dirty, clean the housing with a damp cloth (soap solution). Do not use aggressive
cleaning products or solvents!
±
Regular sservicing:
Testo recommends yearly servicing of the gas detector by an authorized service
centre.
Tips and assistance
Questions and answers
Question Possible causes / solutions
“Error 01” · Instrument error: please contact your dealer or Testo customer service.
“Error 02” · Sensor defective (wire breakage): please contact your dealer or Testo customer
service.
“Error 03” · Sensor connection incorrect: check plug connection of measurement head
“Error 04” · Impermissible measurement head: change measurement head.
“Sensor” blinkt · Sensor dirty: clean sensor, see chapter “Maintaining product”.
If we were not able to answer your question, please contact your dealer or Testo
customer service. Contact data can be found in the warranty booklet or on the internet
at: www.testo.com
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Tips and assistance 19
Detectable refrigerants
Refrigerant Reference refrigerant Detectable Refrigerant selection
Refrigerant group (lower reaction threshold specified) refrigerant in instrument
HFC x R22
CFC x R404a
HCFC x R134a
R12 x R22
R22 x R22
R123 x R22
R134a x R134a
R404 x R404a
R407a, b, c,d, e x R134a
R408 x R22
R409 x R22
R410a x R134a
R505 x R22
R507 x R134a
Hydrogen x H
2
Ammonia x NH
3
Accessories and spare parts
Description Part no.
Refrigerant measurement head 0554 3180
NH3measurement head 0554 3181
Earplug 0554 5001
Mains unit 0554 1093
A complete list of all accessories and spare parts can be found in the product
catalogues and brochures or on the internet at: www.testo.com
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