HYDROCAL 1001+ Installation and operation manual Page 5/76
2.2. Safety precautions
The following security precautions must be strictly observed during the installation. Otherwise no war-
ranty claims will be accepted.
Never remove the protection cap from the connection thread until you are
ready to mount the unit on the transformer valve.
The protection cap protects the connection unit against dust and from other
impurities. Additionally it protects the connection thread.
Note: Use the protection cap also after dismounting the unit.
Never close the aeration hole for oxygenation. It is situated on the bottom
side of the protection cover.
Never use or stock chemicals with hydrocarbon contents near the meas-
uring sensor.
Never clean the HYDROCAL unit with solvents, because its gases will strongly
impair the measurement accuracy and the sensitivity of the sensors.
Never apply a negative pressure to the connection unit.
Negative pressure can damage the membrane.
Never touch the membrane with fingers or other objects.
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