Teledyne Tablet Accessory T803 Manual De Usuario

Descargar
Página de 304
Teledyne API T803 CO2/O2 Analyzer Operation Manual 
Getting Started 
 
 37 
 
STATUS 
    1     2     3     4     5     6    7    8      D           
+
 
SY
S
T
E
M
  O
K
 
CONC  
VAL
ID
 
CAL 
M
O
DE
 / M
E
A
S
 MOD
E
 
S
P
A
N  
CAL
 /
 ZERO 
MODE
 
CAL M
O
DE
 – RA
NG
E
 2
 
 CO
2
 CAL
 
 
Figure 3-9: 
Status Output Connector 
Table 3-6:  Status Output Signals 
Rear Panel Label  Status Definition  Condition 
SYSTEM 
OK/ALARM 
ON if no faults are present. 
OFF if alarm condition 
CONC 
VALID/CONC 
INVALID 
ON if concentration measurement is valid.   
OFF any time the HOLD OFF feature is active, such as during calibration or when 
any faults exist invalidating the measurement. 
CAL MODE/ 
MEAS MODE 
ON whenever the instrument is in Calibration Mode 
OFF when instrument in Measure Mode  
SPAN/ZERO 
CAL 
ON whenever the instrument’s SPAN point is being calibrated. 
OFF whenever the instrument’s ZERO point is being calibrated. 
RANGE2 CAL 
RANGE1 CAL 
ON if unit is in high range of either the DUAL or AUTO range modes. 
OFF if unit is in default low, single range mode 
CO
2
/O
2
 Sensor CAL
 
ON when CO
sensor is in calibration mode.  
OFF when O
2
 sensor is in calibration mode. 
7 & 8 
SPARE 
EMITTER BUS 
The emitters of the transistors on Pins 1-8 are bussed together. 
DC POWER 
+ 5 VDC, 300 mA source (combined rating with Control Output, if used). 
 
 
Digital Ground 
The ground level from the analyzer’s internal DC power supplies 
3.3.1.6. CONNECTING THE CONTROL INPUTS  
If you wish to use the analyzer to remotely activate the zero and span calibration 
modes, several digital control inputs are provided through a 10-pin connector 
labeled CONTROL IN on the analyzer’s rear panel.   
There are two methods for energizing the control inputs.  The internal +5V 
available from the pin labeled “+” is the most convenient method (Figure 3-10, 
07276B DCN6418