Maintenance; Basic Information; Visual Check; Functional Check - Extron electronics ExSens Instruction Manual

6

Maintenance

The following descriptions are generally valid for Gas Detection Systems of the
company ExTox GmbH consisting of the herein described control units and connect-
ed transmitters.

Basic Information

6.1
Maintenance done by specialists is an indispensable measure for checking and
keeping the functionality of gas detection systems. Maintenance comprises inspec-
tion, calibration and adjustment as well as functional test of the complete system.
Most important is the testing of the connected transmitters. Control of the gas de-
tection system and its correct functionality are also checked.
ExTox recommends for all of her supplied transmitters regular calibration and ad-
justment with test gas during functional and system checks. Please see also the
details in the corresponding Technical Data Sheets ( DB). An extension to 12
months might eventually be possible in case of existing experiences on similar ap-
plications. The functionality of the Control Unit has to be tested as well.
Furthermore national valid regulations to define maintenance intervals may exist.
In Germany it is for example necessary in certain applications to keep Be-
triebssicherheitsverordnung (BetrSichV) and the information of the professional as-
sociations T 023 und T 021 (see 4.1). ExTox recommends generally speaking the
application of the measures described in the information of the professional asso-
ciations as well as the maximum calibration intervals even if the application does
not fit into their scope.
Explosion Protection (T 023)
1 Month (Visual Check)
4 Months (Functional Check)
1 Year (System Check)
You as user of the gas detection system bear the responsibility for the correct per-
formance of the maintenance. ExTox as manufacturer can only place all necessary
details to build up your specific maintenance concept at your disposal. We are glad
to support you with this task and to submit a maintenance quotation acc. to your
special requirements.
The result of each maintenance should be documented even if it is not specifically
required.
Hereafter the main contents of the intended checks are described. You will find de-
tails in the above mentioned bulletins.

Visual Check

6.2
You have to check your system on mechanical damages, dust, dirt, state of a sam-
pling system if included. Furthermore indications and status messages have to be
checked.

Functional Check

6.3
The functional check also comprises calibration by means of application of test gas-
es and a suitable system for application of test gas. When calibrating the indication
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ExTox Transmitter ExSens(-I) and Sens(-I)
Maximum Intervals
Toxic Gases/Vapours and Oxygen (T 021)
1 Month (Visual Check)
6 Months (Functional Check)
1 Year (System Check)
Instruction Manual