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1 INTRODUCTION
To interpret and to display a reading of hydrazine received from the
sensor unit,
To control the calibration sequence,
To provide various outputs to the remote equipment.
Displays are three-digit, seven-segment, light emitting diodes (l.e.d.), which
show the level of hydrazine and operational information as well. The operator
can see when the instrument is in the calibration mode, and when the
calibration has not been successful.
On the left-hand side of the transmitter unit are six access holes. These holes
are sized to accept cable glands for the interconnect cable, alarm signals,
current outputs and an alternating current (a/c.) power cable
9070
2
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