Chapter 2 Install; Mechanical Installation - Emerson Rosemount Oxymitter DR Reference Manual

In-situ oxygen probe for general purpose locations
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Reference Manual
00809-0100-4884
2
Install
WARNING
Failure to follow safety instructions could result in serious injury or death.
Before installing the equipment, read
2.1

Mechanical installation

2.1.1
Select location
The location of the transmitter in the stack or flue is most important for maximum
accuracy in the oxygen analyzing process.
If the probe will be installed into an existing location, proceed to
Procedure
1. Position the transmitter so that the gas it measures is representative of the process.
2. Check the flue or stack holes for air leakage. Make any necessary repairs or install
3. Ensure that the area is clear of internal and external obstructions that will interfere
Table 2-1: Calibration Gas and Reference Air
Calibration gas
ANSI
DIN
Table 2-2: Mounting Flange (Gasket Included)
Flange diameter
Rosemount Oxymitter DR
You will obtain best results by positioning the transmitter near the center of the
duct (40 to 60 percent insertion). Longer ducts may require several transmitter
units since the O
can vary due to stratification. A point too near the wall of the duct
2
or the inside radius of a bend may not provide a representative sample because of
the very low flow conditions. Select the sensing point so the process gas
temperature falls within a range of 32 to 1300 °F (0 to 704 °C).
The ambient temperature of the termination housing must not exceed 200 °F (93
°C).
the transmitter upstream of any leakage.
Ducts and stacks that operate under negative pressure will draw air in through any
holes or torn seals, substantially affecting the oxygen reading.
with probe installation and access to the membrane keypad or LOI. Allow adequate
clearance for removal of the transmitter.
ANSI
190 (7.5)
Safety
instructions.
Reference air
6.34 (¼) tube
6.35 (¼) tube
DIN
210 (8.25)
Install
April 2022
Install
probe.
19

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