Installation/Startup And Shutdown; Preparation Of The Equipment; Fitting And Installation Works; Attaching The Flushing Lines - Mettler Toledo InTrac 787 Instructions D'utilisation

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4

Installation/Startup and shutdown

4.1

Preparation of the equipment

The housings are mounted and fixed on the vessel (reactor, tank,
pipe, etc.) a flange connection or a 1" MNPT external (male)
thread.
– The retractable housing should be mounted in a position
which allows sufficient clearance for its correct functioning
(correct measuring position in the medium) and mainte-
nance (checks, installation and removal of the electrodes/
sensors).
– Avoid mounting the retractable housing at exposed posi-
tions. If this is not possible, appropriate measures must be
taken to protect against damage.
4.2

Fitting and installation works

Warning! For all installation work described below, ensure that
the equipement in which the housing is installed is in a non-
hazardous condition (depressurized, empty, rinsed, purged,
etc.).
4.2.1

Attaching the flushing lines

Important information
– When the electrode/sensor is withdrawn, small amounts of
the process medium adhere to the electrode/sensor tip and
can enter the outflow line during the rinsing process. If the
process medium is an environmentally harmful substance
(toxic, corrosive, etc.), it is essential to comply with the local
regulations governing the installation of wastewater services.
– Use only corrosion-resistant and chemically resistant mate-
rials for the rinsing water installation.
Recommendation for proper operation and safe use
Flushing lines must be equipped with valves which may only be
opened when the retractable part of the housing is in the main-
tenance position. After the flushing and maintenance of the sen-
sors, the flushing valves must be closed.
Basic installation
The basic installation is intended for cleaning/flushing of the
electrodes/sensors when the housing is in the "Maintenance"
position. In the optional accessories you will find Serto or
Swagelok fitting to connect your flushing lines. The position of
the Inlet and Outlet has nor influence to the performance.
InTrac 787-01-CH © 02/02 Mettler-Toledo GmbH, CH - 8606 Greifensee
52 402 481
InTrac ® 787
Printed in Switzerland