Appendix B: Inputs/Outputs on the MZA 6010

There are a number of Digital Inputs and Outputs in both the IR/interface enclosure and the pump enclosure on the MZA 6010. These are usually tied to external events or activated by an external PLC to perform various functions. The digital inputs are enabled by completing the electrical connection between each input and the ground terminal.

Digital I/O Board #1 in Main Enclosure
Input 1	Zone 1 COF/PF Inhibit
Input 2	Zone 2 COF/PF Inhibit
Input 3	Zone 3 COF/PF Inhibit
Input 4	Zone 4 COF/PF Inhibit
Output 1	Not used
Output 2	Alarm 2
Output 3	Alarm 1
Output 4	Aux. Cal Gas Enable
Output 5	Sample Gas Enable
Output 6	Autocal Zero Gas Enable
Output 7	Autocal Span Gas Enable
Output 8	Not Used

Digital I/O Board in Zone 1-4 Pump Enclosure
Input 1	Zone 1 Stop Sample
Input 2	Zone 2 Stop Sample
Input 3	Zone 3 Stop Sample
Input 4	Zone 4 Stop Sample
Output 1	Zone 1 Pump On/Off
Output 2	Zone 2 Pump On/Off
Output 3	Zone 3 Pump On/Off
Output 4	Zone 4 Pump On/Off
Output 5	Zone 1 Blocking Solenoid
Output 6	Zone 2 Blocking Solenoid
Output 7	Zone 3 Blocking Solenoid
Output 8	Zone 4 Blocking Solenoid

Digital I/O Board #2 in Main Enclosure
Input 1	Zone 5 COF/PF Inhibit
Input 2	Zone 6 COF/PF Inhibit
Input 3	Zone 7 COF/PF Inhibit
Input 4	Zone 8 COF/PF Inhibit
Output 1	Zone 1 Alarm
Output 2	Zone 2 Alarm
Output 3	Zone 3 Alarm
Output 4	Zone 4 Alarm
Output 5	Zone 5 Alarm
Output 6	Zone 6 Alarm
Output 7	Zone 7 Alarm
Output 8	Zone 8 Alarm

Digital I/O Board in Zone 1-4 Pump Enclosure
Input 1	Zone 5 Stop Sample
Input 2	Zone 6 Stop Sample
Input 3	Zone 7 Stop Sample
Input 4	Zone 8 Stop Sample
Output 1	Zone 5 Pump On/Off
Output 2	Zone 6 Pump On/Off
Output 3	Zone 7 Pump On/Off
Output 4	Zone 8 Pump On/Off
Output 5	Zone 5 Blocking Solenoid
Output 6	Zone 6 Blocking Solenoid
Output 7	Zone 7 Blocking Solenoid
Output 8	Zone 8 Blocking Solenoid

Shaded areas indicate internal functions of the MZA that are not available. They are included here for reference and troubleshooting purposes.

The MZA 6010 also includes four (4) or eight (8) Analog Output Boards, depending on the model. Each board corresponds to the same-numbered zone. The outputs function as follows by default, but can be changed in the Analog Output Setup section on page 31.

Analog Board (#)
Output 1	Zone (#) %CO
Output 2	_{Zone (#) %CO2}
Output 3	_{Zone (#) %CH4}
Output 4	Zone (#) Carbon Potential (%C)