Teledyne T200, Operation Manual, Page: 49 / 425

Teledyne API
– T200 NO/NO
2
/NO
X
Analyzer Operation Manual Getting Started
47
RS-485 (O
PTION
) C
ONNECTION
As delivered from the factory, COM2 is configured for RS-232 communications. This
port can be reconfigured for operation as a non-isolated, half-duplex RS-485 port. Using
COM2 for RS-485 communication will disable the USB port. To reconfigure this port
for RS-485 communication, please contact the factory.
3.3.2. PNEUMATIC CONNECTIONS
This section provides pneumatic connection information and important information
about the gases required for accurate calibration (Section 3.3.2.1); it also illustrates the
analyzer‟s pneumatic layouts in basic configuration and with options.
Before making the pneumatic connections, carefully note the following cautionary and
additional messages:
CAUTION
– GENERAL SAFETY HAZARD
Do not vent calibration gas or sample gas into enclosed areas.
CAUTION
– GENERAL SAFETY HAZARD
In units with a permeation tube option installed, vacuum pump must be
connected and powered on to maintain constant gas flow though the analyzer at
all times. Insufficient gas flow allows gas to build up to levels that will
contaminate the instrument or present a safety hazard to personnel.
Remove the permeation tube when taking the analyzer out of operation and store
in sealed container (use the original container that the tube was shipped in).
(See Figure 3-6 for location and Section 11.3.6 for instructions on how to remove
the perm tube when the unit is not in operation).
I
MPORTANT
I
MPACT ON
R
EADINGS OR
D
ATA
Sample and calibration gases should only come into contact with PTFE tubing.
06858E DCN7057