Ametek Land 4750-PM, User Manual

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4 - 5 User Guide
Particulate Measurement System 4750-PM
4.4.2 Fitting the Sensor to the Stack
Attach the sensor unit to the stack flange. Ensure that the sensor enclosure
is vertical with the cable glands at the bottom facing downward and that the
air purge is attached to the sensor and switched ON.
NOTES
(i) The sensor is fitted with an Earth stud and grounding strap
(supplied), ensure this is firmly connected to the stack/
duct. Ensure the grounding strap (earth wire) is long enough
to remove and place the sensor on the ground or platform
without disconnecting if required.
(ii) The sensor optics have been designed so that there is no need
to install a beam dump at the far side of the stack. However,
be aware of possible interference, which may be due to the
stack diameter and/or reflectivity of the stack wall. For more
information and assistance contact AMETEK Land.
Stack Connection (Flange)
The stack connection is either a 3 in 150 lb ANSI or DN80 PN10/16 flange.
The port hole in the stack must allow for a standoff with an ID of Ø80–
110 mm (3.2 – 4.3 in).
The sensor flange connection is a combined (dual-size) flange to match the
4 off holes of the 3 in 150 lb ANSI or the 4 off holes of the DN80 PN10/16
flange, i.e. it has eight slotted holes to allow for square or diamond stack
flange orientation/arrangement. The flange should be fitted to the stack wall
as shown in Fig. 4-1.
Fig. 4-1 Stack Port Hole and Standoff dimensions