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Model 400E Ozone Analyzer
Instruction Manual
Operating Instructions
P/N 04316 Rev: B
125
6.9.7.
Testing the COM Ports
The serial communications port can be tested in the COMM menu. This test sends a
string of 256 ASCII ‘w’ characters to via the selected COMM port. While the test is
running the red LED on Rear Panel of the analyzer should flicker.
To initiate the test press:
SETUP X.X
COM1 : TEST PORT
<SET
TEST
EXIT
SETUP X.X
TRANSMITTING TO COM1
<SET
TEST
EXIT
SETUP X.X
CFG DAS
RNGE
PASS CLK
MORE
EXIT
SETUP X.X
COMM
VARS DIAG HALT
EXIT
SAMPLE RANGE = 500.0 PPB O3 =XXX.X
< TST TST > CAL
SETUP
SETUP X.X
COMMUNICATIONS MENU
ID
COM1
COM2
EXIT
Select which
COMM Port is
to be tested
SETUP X.X
COM1 MODE:0
SET>
EDIT
EXIT
EXIT
returns
to the
previous
Menu
SETUP X.X COM1 BAUD RATE:19200
<SET
SET>
EDIT
EXIT
EXIT
returns to
Communications
Menu
Test runs
automatically