Teledyne 9110EH - Nitrogen Oxides Analyzer - Manual (Page 227)

Model 9110EH Instruction Manual Troubleshooting & Repair
Table 11-6: Analog Output Test Function - Nominal Values
Full scale Output Voltage
100mV 1V 5V 10V
Step % Nominal Output Voltage
1 0 0 mV 0 0 0
2 20 20 mV 0.2 1 2
3 40 40 mV 0.4 2 4
4 60 60 mV 0.6 3 6
5 80 80 mV 0.8 4 8
6 100 100 mV 1.0 5 10
11.5.9.3. Status Outputs
The procedure below can be used to test the Status outputs.
• Connect a cable between the “-“ pin and the “V” pin on the status output connector.
Table 11-7: Status Outputs Check
PIN # Status
1 SYSTEM OK
2 CONC VALID
3 HIGH RANGE
4 ZERO CAL
5 SPAN CAL
6 DIAG MODE
7 SPARE
8 SPARE
• Connect a 1000 Ω resistor between the +5 V and the pin for the status output that is
being tested.
• Connect a voltmeter between the “-“ pin and the pin of the output being tested
(Table 11-7).
• Under the DIAG / SIGNAL I/O menu (Section 11.1.3), scroll through the inputs
and outputs until you get to the output in question. Alternately turn on and off the
output noting the voltage on the voltmeter, it should vary between 0 volts for ON
and 5 volts for OFF.
11.5.9.4. Control Inputs
The control input bits can be tested by the following procedure:
• Connect a jumper from the +5 V pin on the STATUS connector to the +5 V on the
CONTROL IN connector.
M9110EH Rev 0 213