Racal Instruments 9916 Workshop Manual page 33

External Hold
3.11 If, when used with external circuitry, it is required to extend the cycle time,
the external hold, (logic '0', pin 6) must be applied within the gate time or up
to 100 }Is after gate closure. To initiate a new cycle of measurement, the external hold
must go 'high' for not less than 200
ys.
External Reset
3.12 External reset is achieved by the appl ication of logic '0' to pin 7 of the Data
Output connector for a period of not less than 100 ns. On returning to '1' level
the display resets to 'all zeros' and a new measurement cycle commences.
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9916 Vol. 2