Installation In Pipes; Calibration In Open Laboratory Vessels; Fiber Optic Cable Extensions - Mettler Toledo InPro 8000 Serie Bedienungsanleitung

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® 8000 Series

Installation in pipes

The turbidity sensors are to be installed such that the distance from the pipe
walls is at least 10 cm (4"). If this is not feasible in pipes of small diame-
ter, then the sensor can be installed sloped, at an angle of 15...45° or, al-
ternatively, in a knee bend. The pipe must always be completely full of liquid.

Calibration in open laboratory vessels

If the turbidity measuring system is calibrated off-line, it is recommended
to use the METTLER TOLEDO calibration tool, «CaliCap» (order no. 52 800
210), for fitting on the sensor shaft. If «CaliCap» is not used, a minimum
distance of 10 cm (4") to the vessel walls has to be observed as well.
During calibration, the sample should be stirred in order to prevent the
sedimentation of solid particles.

Fiber optic cable extensions

Fiber optic cables are available according to the list in chapter 7.2
«Accessories». The duplex cable extensions are supplied complete with
four fitted SMA plugs and two couplings. The two SMA plugs of the sensor
fixed cable are to be screwed hand-tight onto the couplings. Two SMA plugs
of the extension cable can then also be screwed by hand onto the couplings
in any order. To protect the cable connection from dust and splashwater, it
is recommended to use the METTLER TOLEDO Connection Box IP 65
(Nema 4X) (order no. 52 800 241).
If extension cables are installed subsequently at a later date, the
measuring system has to be newly calibrated (see instruction manual for
the METTLER TOLEDO Transmitters Trb 8300, chapter: «Calibration»).
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