Section 2
The Retrofit
Preparation
Step 1: Use Sensor Configuration Editor and a SLTA if you wish to download and save
the current Sensor configuration out of the racks for later reference. For
information on this process contact ETC Technical Services (see page 1).
Step 2: Turn off main power to the rack(s).
Step 3: Remove the eight dimmer modules above the ECEM (if retrofitting an ESR36 or
48 rack, remove the eight modules below the ECEM as well). Note and document
the modules’ order/positioning in the rack for proper insertion and configuration
later.
Step 4: Use a digital voltmeter to VERIFY that power is off by checking voltages for all
combinations between the phase bars, neutral and earth.
Step 5: Remove the ECEM(s) from the rack.