Purging - Mettler Toledo GPro 500 Guía De Instalación Rápida

Quick Setup Guide TDL GPro 500

Purging

Purging configuration for a standard-purged probe (SP)
1 Purge gas inlet for instrument side. Purge outlet is at 90 degrees facing away and
is not shown in this view. 6 mm tube fitting for DIN, ¼" for ANSI versions.
2 Purge gas inlet for process side. Must have a check valve to be supplied by the
user.
3 Mandatory check valve (to be supplied by the user)
4 Process gas flow
5 Cut-off zone: region that defines the boundaries of the effective path length.
For other configurations, see Instruction Manual (Chapter 3).
1 2
3
Always start purging at maximum flow before starting the process.
Purging must always be switched on in order
to avoid dust deposition onto the optical surfaces.
Do not remove and / or disassemble the purge gas inlet for processes (2).
If disassembled, the PED pressure certificate is void.
Do not connect instrument and process side purging in series, otherwise
when disassembling the sensor heat the probe purging will stop.
The failure of the instrument side purging and process side system must
trigger an alarm. This alarm has to be implemented in the DCS by the user.
5
4
WARNING
WARNING
WARNING
WARNING
WARNING
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