Michell Instruments XZR250, Руководство пользователя

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XZR250 User’s Manual
6
97528
Issue 5, May 2019
INSTALLATION
2.3 Mounting Instructions
The probe should be mounted such that the alignment arrow on the flange is in the
same direction as the sample gas flow. Refer to Figure 5 showing alignment arrow.
Avoid positions where:
• Obstructions or bends create turbulence in the gas flow and/or hinder probe
insertion and removal.
• Excessive vibration induced by other equipment could result in damage or
mechanical failure of the product.
• Excessive contamination or dust flows are likely. A particulate shield to
prevent contamination build-up in the gas sampling tubes may be required.
Select a position that is accessible for maintenance purposes and make allowances for
access to the wiring and piping inlets, which are at the base of the sensor head.
The device must be securely fitted to a suitable surface using the 2" 150lb ANSI mounting
flange incorporated into the probe.
Figure 5 Gas Flow Alignment
The device should be installed in a suitable location, taking into account factors including
those detailed in Section 2.1 General Guidelines.
The probe must be installed in a horizontal or slightly downward angled position.
Do:
• Ensure the sensor head is oriented so that the cable gland is facing
downwards.
• Ensure the sensor head is shielded from radiated heat in excess of 55°C
Do Not:
• Mount with the probe vertically or with the tip higher than the sensor head
(i.e. angled upwards) as this can lead to condensate entering the probe.
• Allow the gas flow straight into the gas sampling tubes: refer to figure 7.