Teledyne 5000B - Near Infrared Photometer - Manual (Page 84)

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4 Operations/Analysis Unit
Teledyne Analytical Instruments
A Business Unit of Teledyne Electronic Technologies
ATTACHMENT 5000B/5020 NIR ANALYZER
Quote "Exceptions" and "LIQUID PHASE Conditions" for this application.
1 Response Time is proportional to sample system design for take-off distance, process pressure, line
size, sequencing and bypass, by-pass analyzer flow design, dead-volumes/tee's, sample cell volume
and instrument electronics.
2 Maximum cell operation pressure to be 175 psig, based upon standard Sapphire window cell design.
Higher pressures available.
3 The sample flow through the analyzer should be regulated to within ± 5% of its recommended absolute
nominal set point flow value (typically 20-60ccm). This will avoid any pressure drops across any
orifices or poor temperature control of the sample.
4 The temperature of the sample from the take-off thorough the sample cell must be non-freezing, non-
crystallizing, non-coating as provided by customer.
5 The sample temperature should not vary at the inlet more than ± 15 O C of the calibration temperature,
nor exceed the design operating specifications typically 5-45 O C. Assume sample below 45 C and
requires no cooling.
6 Any background components later found to be present and not specified in the original application
feasibility may void the instrument performance should they interfere. particulates assumed none.
7 If compounds are found present, such as moisture, acid gases or corrosive solvents, etc., the sample
system materials may be compromised for corrosion resistance integrity. We assume that the sample
will not polymerize, clog or react in any 1/4" sample line, filter or sample cell when transporting through
the sample systems for all inlet ambient or sample pressures and temperatures from takeoff or derived
from sample conditioning. Special materials may be required for stability, corrosion protection, coalesc-
ing, filtering, hazardous protection or due to heating or cooling.
8 We recommend when ambient temperatures exceed outside a 1-50 O C range that the instrument and
sample system be conditioned appropriately for heating/ cooling without condensation, crystallizing,
coating, polymerization, etc.
9 Should the general purpose or explosion proof instrument be supplied on a back-panel or as a bulk-
mount housing, the customer must install to protect the instrument to meet harsh ambient conditions
for dust, water, snow, wind, corrosion, etc.
10 Teledyne is not responsible for applying a general purpose instrument in a hazardous area or where a
flammable or toxic gas or liquid is brought to an analyzer above its lower explosive limit and the area
has been classified as general purpose and safe.
11 The internal calibration features using optical filters are optimized and used when the sample can be
flushed (backflushed usually) out of the sample cell using dry nitrogen or air to a reproducible back-
ground zero. The zero offset and/or span flag is introduced and set-up to simulate the on-line calibration
only after the customer has calibrated the analyzer on the representative process fluid. Thereafter, no
calibration fluids are needed to check analyzer.