Vaisala MGP261, Installation And Safety Manual

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Using MGP261 in Hazardous Locations
MGP261 has been designed for use in hazardous locations as
specified by the product classification. The personnel installing, using, or
maintaining the probe are responsible for determining the appropriate
protection concept for the specific application the probe is used in, and that
the hazardous area classification of the probe meets the requirements of the
application.
WARNING!
MGP261 is certified for use in hazardous areas as defined by the following classification:
Ex II 1/2 (1) G Ex eb mb [ia] IIB T3 Ga/Gb -40 °C
≤
Tamb
≤
+60 °C
The personnel installing, operating, and maintaining MGP261 must
have the required competencies for working in the hazardous location, as
defined by the applicable standards.
CAUTION!
For information on the standards that apply to using MGP261 based on the classification of the
device, see MGP261 certification documentation and the declarations of conformity related to
MGP261 at
www.vaisala.com/declarationofconformity .
Guidelines for Safe Use in Hazardous Conditions
Process Connection and Partition Wall
1 2
Ga
Gb
Figure 1 MGP261 Probe Ga/Gb Division
1 The part outside of the process (up until to the NPT 1.5" connection thread) complies with
the
Gb Equipment Protection Level (EPL).
2 The part inside the process (starting from the NPT 1.5" thread) complies with the Ga EPL.
The partition wall is made of stainless steel, sapphire glass, and silicone adhesive. The
stress limit temperature range of the silicone adhesive is -40 … +60 °C (-40 ... +140 °F).
While installing or uninstalling the device, there is a risk of
flammable gas release or flame entrance.
WARNING!
6 M212238EN-B