083730510A DCN8172
Teledyne API T500U CAPS NO
2
Analyzer with NumaView™ Software
75
NO
2
P
ERMEATION
T
UBES
Teledyne API offers an optional internal span gas generator that utilizes an NO
2
permeation
tube as a span gas source. The accuracy of these devices is only about ±5%. Whereas this
may be sufficient for quick, daily calibration checks, we recommend using certified NO
2
gases for accurate calibration.
CAUTION!
Insufficient gas flow allows gas to build up to levels that will
contaminate the instrument or present a safety hazard to
personnel.
In units with a permeation tube installed, either the tube must
be removed and stored in a sealed container (use original
container that tube was shipped in) during periods of non-
operation, or vacuum pump must be connected and powered
on to maintain constant gas flow though the analyzer at all
times.
(See Section 5.6.4 for removal instructions).
D
ATA
R
ECORDING
D
EVICES
A strip chart recorder, data acquisition system or digital data acquisition system should be
used to record data from either the Ethernet, serial or analog outputs.
•
If analog readings are used, the response of the recording system should be checked
against a NIST traceable voltage source or meter.
•
Data recording devices should be capable of bi-polar operation so that negative
readings can be recorded.
For electronic data recording, the analyzers provide an internal data logger, which is
configured through the Setup>Data Logger menu (Section 2.5.1).
NumaView™ Remote is a remote control program, which is also available as a convenient
and powerful tool for data viewing and handling, download, storage, quick check and
plotting.
CALIBRATION PROCEDURES
Check that the pneumatic connections for the specific instrument configuration are as
instructed in Section 2.3.2. Calibration procedures include setting the expected span gas
concentration (see Note below).
Verify/change (if needed) the settings in the Setup>Vars menu as follows:
•
User Units (unit of Measure): PPB
•
Max Concentration Range (highest concentration expected to measure)
•
Range Mode: SNGL
Summary of Contents for T500U
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