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11 Technical aspects
11.4 Consumables
Pump filter
built into the instrument to protect the pump
(to replace it, the sensor cap must be re-
moved with the screwdriver supplied with
the instrument and the sensor removed)
H
2
S filtre inside
the senor head
(EX-TEC OD 4)
Change in SEWERIN service
Test gas cans
various concentrations for monitoring and
adjustment purposes
Note:
Test gas cans are under pressure: do not store
above 50 °C!