Fluke 1551A Ex User Manual page 14

1551A/1552A Ex
Users Manual
The minimum immersion depth for the Probe is 3.5 inches in a stirred fluid heat source. It
is recommended that you make sure of the minimum immersion depth for the specific
application. See Figure 2.
A
B
6
The maximum immersion depth for the 1551A Ex is 2 inches less than the total
length. Make sure the last 2 inches of Probe, nearest to the internal electronics of the
device, are not put into the heat source.
The maximum immersion depth for the 1552A Ex is 3 inches less than the total
length. Make sure the last 3 inches of the Probe, nearest to the internal electronics of
the device, are not put into the heat source.
1552A Ex: Maximum immersion: 3 inches less than total probe length.
1551A Ex: Maximum immersion: 2 inches less than total probe length.
Figure 2. Immersion Depth
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