Bacharach MZ-RD Installation & Operation Manual

Bacharach MZ-RD Installation & Operation Manual Manual pdf 37 page image

MZ-RD – Multi-Zone Remote DisplayInstruction 3015-5157 31Resetting the MZ-RD – Occasionally it will be necessary to rest the MZ-RD to its factory defaultsettings.1. Press and hold down the UP and DOWN arrow keys on the MZ monitor.2. Cycle AC power OFF, then ON;3. Release the keys after the second beep is heard.4.8.6. Clearing System FaultsIf the fault condition is associated with a gas monitor, the monitor will return to normal operationsoon after the problem is corrected. At that time the YELLOW LED will turn off and any externalalarms connected to the monitor’s alarm relays will also turn off. The MZ-RD will return to normaloperation the next time it polls the affected gas monitor.Once the system malfunction has been corrected it may take some time for the fault condition toclear completely. If the fault is associated with a specific zone, the gas monitor must first cycleback to the affected zone before it returns to normal operation. At that time the YELLOW LED willturn off and any external alarms connected to the monitor’s alarm relays will also turn off. TheMZ-RD will return to normal operation the next time it polls the affected monitor.4.8.7. Viewing Fault LogA data log of the last 20 fault conditions is retained in memory. From the Fault Screen pressENTER to display the fault log.Fault Screen Fault Log ScreenThe Fault Log screen lists potential fault conditions in the left column. It also displays a checkmark indicating which problems were associated with each fault condition, as represented by thevertical cursor bar. As you move the bar horizontally using the LEFT/RIGHT cursor keys, the dateand time the fault condition was detected is displayed in the upper right hand corner of the displaywindow.Anytime the fault status changes, there is an entry in the fault log, both when the fault occurs andwhen it is cleared.