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OUTPUT # PIN PAIR
(LOW, HIGH)
STATUS CONDITION
1 1,2 ZERO CAL TRUE DURING ZERO
CALIBRATION
2 3,4 SPAN CAL TRUE DURING SPAN
CALIBRATION
3 5,6 FLOW ALARM TRUE IF A FLOW
WARNING EXISTS
4 7,8 TEMP ALARM TRUE IF ANY TEMP
WARNING EXISTS
5 9, 10 DIAG MODE TRUE IF IN
DIAGNOSTIC MODE
6 11,12 POWER ON TRUE IF MAIN POWER
IS ON
7 13,14 PRESS ALARM TRUE ON LOW
PRESSURE
8 15,16 HIGH RANGE
SELECTED
TRUE IF THE AUTO-
RANGE FUNCTION HAS
SWITCHED THE
ANALYZER INTO HIGH
RANGE.
9 17,18 SYSTEM OK TRUE IF NO ALARM
CONDITIONS EXIST
10 19,20 RESERVED
11 21,22 SOURCE
WARNING
TRUE IF THE
ANALYZER SOURCE
INTENSITY IS OUT OF
LIMITS.
12 23,24 RESERVED
TABLE 1.1 STATUS OUTPUTS
1.6.4 RS-232
The RS-232 connection is a male, 9-pin D-sub connector at the location shown in Figure
1.2.
1.6.5 Pneumatic system
The Model 300 is equipped with a vacuum pump capable of pulling 800 cc/min across a
critical flow orifice. This allows a smooth, stable flow of sample through the Analyzer.
Sample enters the Analyzer through a 5 micron TFE particulate filter element (37 mm
diameter) mounted immediately behind the front panel. The sample then enters directly
into the sample cell. Please see Figure 1.3 for a flow diagram and Figure 1.4 for
pneumatic connections.
P/N 02163G1 Teledyne API Model 300 CO Analyzer Instruction Manual - Page 11