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ECO422D SD/HD Changeover Unit Instruction Manual
3- 1
Specifications
Introduction
The items listed in the following tables describe the performance of the
ECO422D Changeover Unit. Performance Requirements are generally quantita-
tive and can be tested by a Performance Verification procedure contained in the
service part of this manual.
Supplemental Information is valuable data pertaining to the operation and output
capabilities of this instrument. Only a few items listed in this category may be
tested in the Performance Verification procedure.
Performance Conditions -- The requirements listed in the electrical specification
apply over an ambient temperature range of 0
_
C to +40
_
C. The rated accura-
cies 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.
These instruments are intended to operate from an AC power source that will not
apply more than 264 V
RMS
between the supply conductors or either supply
conductor and ground. A protective ground connection by way of the grounding
conductor is essential for safe operation.
Environmental specifications are listed toward the back of the following tables.
In addition a list of appropriate safety and electromagnetic interference (EMI)
standards also can be found there.