Section 3 Before Start Up; Stack Exit Correlation Computation - Emerson OPM4001 Installation And Operation Manual

I N S T R U C T I O N M A N U A L

SECTION 3 BEFORE START UP

You must complete the following before start up is attempted.

Check that all parts have the identical serial numbers.

Measure and record flange -to-flange distance to verify it is the same as final check out sheet.

If you are using a recorder, DAS, etc.,
other sources should be left off until system has been completely checked according to the following instructions.
After system operation has been verified connect and test external connections.

Read the instructions first to familiarize yourself with the instrument before attempting start up.

The air purge and Weather cover system, Transceiver, Retro reflector, Service module must be installed and
power applied.

Control unit must be installed and wired to the service module and customers equipment as applicable.

All wiring and mechanical installations must be complete per drawings provided in this manual. All wiring must be
checked and power applied to both the control unit and the stack maintenance module.

Beam Alignment procedure has been completed.

STACK EXIT CORRELATION COMPUTATION

The stack exit correlation is especially important to verify. If possible all dimensions should be verified by actual measurements.
Measure and record inside stack dimensions at the measuring point and at the stack exit, and compute the Optical Path Length Ratio
(O.P.L.R.). Verify that the calculated and the value of O.P.L.R. found in the About page are within +/- 2%.

Lx = Stack exit inner diameter, Lt = Inner diameter of the effluent path

Example: A stack
R E V 4 . 2
DO NOT CONNECT THEM NOW.
Lx

OPLR
with a 120" stack exit I.D. and a 120" path length
2 * Lt
120
 
OPLR . 0 50
2 * 120
15
Outputs and inputs from