Dimensions/Front panel/Terminals
Front Panel Rotary Switches
SKF Copperhead Transmitter Unit CMPT CTU4-10
Instruction Manual
SENSOR OK lamp
Green Accelerometer and temperature sensor and CTU are
operating correctly
Green (flashing) CTU is settling output because of change in rotary switch
setting
Red Fault with sensors or vibration exceeds set RANGE *
Red (flashing) Vibration or temperature input signal exceeds full Scale
Red/Green (flashing) Unit failure (return to SKF for repair)
* The SENSOR OK lamp will be red if the temperature sensor is not connected. A 100 W or a 120 W resistor
is required between CTU terminals 2 and 3 to avoid the red SENSOR OK lamp.
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