Lamtec LT3, Quick Reference, Page: 41 / 80

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5 Maintenance
5.1.10 Checking/Calibrating with Test Gas
WARNING!
Danger of burns!
Probe becomes hot during operation.
If the probe is operated when removed, there is a danger of burns on the probe housing.

Never lay the probe on flammable material and heat it up.

Wear protective gloves
Description of the Testing Device
General Information:
The probe signals are pressure-dependent so they must be tested in a pressure-free environ-
ment. The testing device takes this into consideration and guarantees the best results in spe-
cific ranges. In exceptional cases, the pressure of the testing device must be adjusted to the
pressure of the measuring point through an additional device.
Choose a test gas combination so that O
2
or CO
e
e content lies in the usual plant specific
range and within the specified measuring range of the probe. In standard applications in the
combustion technology, O
2
concentration lies at 2-5 vol.% and CO
e
concentration lies be-
tween 100 ... 500 ppm. The following indicated test gas composition guarantees best results.
Description:
The testing device is a device for the task of testing gases on the probes LS2/KS1/KS1D in
standard housing. The probe can be tested or calibrated by means of test gas function.
The testing device can used lying on the table or plugged into the flue gas channel ( Fig. 5-2
Testing device laying on the table and Fig. 5-3 Testing device plugged into flue gas channel .
For gas-tight fixing at the flue gas channel, the probe screw joints (clamping ring/screw cap)
can be attached to the plug in nozzle for flue gas channel.