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Frequently Asked Questions & Glossary Teledyne API - Model 200EH/EM Operation Manual
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A: The sample pump should last one to two years and the pump head should be replaced when necessary. Use
the RCEL pressure indicator on the front panel to see if the pump needs replacement. If this value goes
above 10 in-Hg-A, on average, the pump head needs to be rebuild.
Q: Do I need a strip chart recorder or external data logger?
A: No, the M200EH/EM is equipped with a very powerful internal data acquisition system (iDAS). Section 6.7
describes the setup and operation in detail.
Q: Why does my RS-232 serial connection not work?
A: There are many possible reasons: 1) the wrong cable, please use the provided or a generic “straight-through”
cable (do not use a “null-modem” type cable), 2) The DCE/DTE switch on the back of the analyzer is not set
properly; make sure that both green and red lights are on, 3) the baud rate of the analyzer’s COM port does
not match that of the serial port of your computer/data logger. See Section 11.5.11 more trouble-shooting
information.
4.2. GLOSSARY
Acronym – A short form or abbreviation for a longer term. Often artificially made up of the first letters of the
phrase’s words.
APICOM – Name of a remote control program offered by Teledyne-API to its customers
ASSY - Acronym for Assembly.
cm
3 –
metric abbreviation for cubic centimeter. Same as the obsolete abbreviation “cc”.
Chemical formulas used in this document:
CO2 – carbon dioxide
H2O – water vapor
HNO3 – nitric acid
NOX – nitrogen oxides, here defined as the sum of NO and NO2
NO – nitric oxide
NO2 – nitrogen dioxide
NOy – nitrogen oxides, often called odd nitrogen, the sum of NO, NO2 (NOX) plus other compounds
such as HNO3. Definitions vary widely and may include nitrate (NO3-), PAN, N2O and other
compounds.
NH3 – ammonia
O2 - molecular oxygen
O3 - ozone
SO2 – sulfur dioxide
DAS - Acronym for Data Acquisition System, the old acronym of iDAS
DIAG - Acronym for diagnostics, the diagnostic menu or settings of the analyzer
DHCP: acronym for dynamic host configuration protocol. A protocol used by LAN or Internet servers to
automatically set up the interface protocols between themselves and any other addressable device connected to
the network.
04521C (DCN5731)