Specifications

5/2/2013 888-2500-001 3-9
WARNING: Disconnect primary power prior to servicing.
Section 3 Operation
DAX-1/DAX-3
3.4 Emergency Operation
In the unlikely event of a DAX transmitter malfunction, the Front Panel indications,
GUI screen, individual board indications, and VT100 protocol should quickly assist the
technician in determining a probable cause.
Depending on the Front Panel indications, early steps in troubleshooting a DAX
transmitter failure can be based on one or more of the following:
3.4.1 No Front Panel LEDs or GUI
1. Reset CB1
2. Check AC Mains
3.4.2 FAULT LED Illuminated
If the Fault LED is illuminated, this is an indication of a currently active fault.
1. If FAULT LED is lit continuously, proceed to following section
2. To clear the Fault Log, see STEP 5 of the following procedure
3.4.2.1 Viewing the Fault Log
NOTE:
Detailed fault descriptions, explanations and troubleshooting tips can be found in
Section 6 starting at "6.4 Fault Log Listing" on page 6-27.
The DAX controller stores 75 fault listings and operates with the first in first out (FIFO)
of data overflow. In other words, the fault log will only contain the last 75 faults. It is
highly unlikely that there would ever be 75 faults to be listed, but it is possible if the
fault log had not been reset for a very long period and/or there was many nuisance fault
trips, that the early faults would be ’pushed out’ by the more recent faults - never
totalling more than 75.
NOTE:
Most recent fault will be displayed as the topmost listing. TIME shown is elapsed
time since the fault occurred. This will be accurate unless there has since been an
AC power failure.
STEP 1 Pressing the INFO button takes you to submenu screen
STEP 2 Select FAULT SUBMENU using the UP or DOWN buttons
STEP 3 Press ENTER to bring up a screen similar to below