Page 43 of 46
WITT-GASETECHNIK GmbH & Co KG
Gas Safety- & Control Equipment
8.3 Inspection and maintenance
The gas analyser operates very reliably and needs only minimum maintenance. To ensure safe
and trouble free operating conditions the following tests and inspections should be performed on a
regular schedule:
Check whether gas supply is sufficient and whether the gas supply pressure is within the limits
specified in the Technical Data. Adjust if necessary.
Check whether the filters in the gas inlets are contaminated or clogged (refer to Section 8.4).
Replace as applicable.
Clean the analyser with a damp cloth. Do never use solvents or a pressure cleaner.
Are suitable calibration gas cylinders available for calibration (demand dependent on the de-
sired measuring gas / carrier gas combination to be measured)?
To maintain the accuracy of the analyser, the instrument should be calibrated at least once a
week.
All piping, tubing, and fittings shall be tested and proved leak tight to prevent the intake of am-
bient air during the measurement. Never use an open flame for leak detection!
If a leak is detected, the defective item shall be immediately removed from service and no em-
ployee may use it until repairs and tests necessary to render the equipment safe and com-
pletely operative have been made. All repair shall be performed by personnel familiar with
proper practices only. When performing repair on the equipment the applicable national safety
and health regulations must be observed (Please refer to the general safety guidelines).
If the leak cannot be rectified, the instrument must be immediately taken out of. Please send
the unit with a short description of the fault to us or a centre authorised by us. The gas analys-
er may only be returned into operation after it has been checked and repaired by us or an au-
thorised service centre.
Please have the instrument checked for internal leak tightness at least once every year. This
inspection may only be performed by us or one or our authorised service centres.
If unexpected malfunctions occur please contact your local service agent, or call WITT-
Gasetechnik to have the analyser checked. The instrument may only be returned into operation af-
ter it has been checked and repaired by us or an authorised service centre.
8.4 Check / replace filter in the gas inlet
To check the filter for clogging / contamination, please proceed as follows:
Take the analyser out of operation.
Disconnect gas supply pipe from gas inlet connector.
Unscrew the inlet connection with integrated filter using a suitable screw wrench.
Clean the filter by blowing out (e.g. using N
2
) against the normal flow direction.
or
Remove and replace the filter by a new one.
Screw in the inlet connection with integrated filter and re-establish the gas supply.
To Next Page
Loading...
Need help?
General
