Residual Hazards; Rupture Of Pneumatic Or Hydraulic Connections; Leaky Connections; Malfunctions In Overriding Control And Safety Systems - Mettler Toledo InTrac 785 Instructions D'utilisation

InTrac ® 785
InTrac ® 785
52 403 859
2.10

Residual hazards

Attention: Despite all precautionary measures taken, residual hazards still remain.

2.10.1 Rupture of pneumatic or hydraulic connections

Danger! The escape of aggressive medium can present a threat to human life and to the
environment.

2.10.2 Leaky connections

– Connections can become loosened through the effects of vibration.
– The connection between housing and process adaptor is a potential source of leakage.
Attention: The connections between the housing and the process adaptor must be checked
regularly by the customer/operator, and kept in full working condition.
Danger! Leaky connections can allow process medium, cleaning solution or control (compres-
sed) air to escape to the environment, presenting a hazard for persons and the environment.

2.10.3 Malfunctions in overriding control and safety systems

Attention: Problems occurring in the overriding control system can trigger off uncontrolled
insertion and retraction of the housing. This can in turn lead to a complete breakdown or
malfunctioning of the safety devices.

2.10.4 Medium residues

Danger! When retracting the immersion tube from the process, small quantities of process -
medium will remain attached to the electrode/sensor. If this medium is a toxic or environmental-
ly damaging substance, or contains pathogenic germs, then such contamination must be remo-
ved and disposed of in accordance with regulations!
The optional flushing chamber (see accessories page 36) allows the sensor in the housing to
be cleaned before it is removed.

2.10.5 Manually operated housings

Danger! The electrode or sensor may only be removed when the housing is in the
«Maintenance» position.
Danger! In the case of the manually operated InTrac785, the retractable immersion tube can be
pushed out of the process at an increased velocity by the process pressure.
© 07 / 12 Mettler-Toledo AG, CH-8606 Greifensee
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