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Replacing or
Re-attaching the
Probe Block
The TDR 150 sensor block is a user
-
replaceable
component (item 6445S). Turn the TDR 150 dis-
play upside down and remove the 4 screws. Open
the bottom and remove the base plate (fig. 1). The
sensor connects to the meter via the jack located
between the two battery holders. After attaching
the cables, re
-
insert the foam plug. When replac-
ing the base plate, take care to feed the sensor
through the slot on the base plate (fig. 2).
Figure 1. Sensor cable plugged into jack
Figure 2. Sensor cable fed through slot
cable
