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1780R-Series Service Manual
1–3
Specifications
This section of the manual contains the specifications for the 1780R-Series.
Tabular information is divided into two categories. First there are the Perfor-
mance Requirements which is assured by Tektronix Inc. Second are the items in
the Supplemental Information column, which due to a number of reasons may be
only typical numbers or could vary slightly from one instrument to the next.
The Performance Verification is provided to verify listed Performance Require-
ments. If a step for a specific requirement is not included in this procedure, it is
because the performance has been built into the instrument and is therefore
assured by either the fact that the instrument is operational or is proven correct
by other performance check steps. In a few instances, the procedure to verify a
specification can be extremely difficult or require extremely expensive equip-
ment to verify, which might also cause them to be omitted from the procedure. In
these cases the factory has a procedure, that can be provided if necessary.
The step numbers, that can be used to verify the Performance Requirements and
some critical Supplemental items, are in a column following the Supplemental
Information.
Performance Qualification
The Performance Requirements listed in the Electrical Specification apply over
an ambient temperature range of 0_ C to +50_ C. The rated accuracies are valid
when the instrument is calibrated at an ambient temperature range of +20_ C to
+30_ C, after a warm-up time of 20 minutes. Test equipment used to verify
Performance Requirements must be calibrated and working within the limits
specified under the Equipment Required list.
Heat Dissipation
Maximum heat dissipation is 120 Watts (410 BTU/ Hour).