8.1 Connecting Multiple PW3390 (Synchronized Measurements)
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Chapter 8 Connecting External Devices
Up to eight PW3390 can be connected with optional Hioki 9683 Connection Cable (for synchronous measure-
ments).
When so connected, one PW3390 operates as master over the others set as slaves, providing multi-
instrument synchronous measurements.
The maximum delay of synchronization is 5 s/connection and is 5 s+50 ms for synchronization event.
The timing control functions can be applied to synchronous measurements.
See "5.1 Timing Control Functions" (p. 107)
The slave PW3390s are synchronized by the master PW3390 for the following operations.
• Clock and data update timing (slaves match clock and data update timing)
• Timing control, integration start/stop and data reset (the and keys on the master also
control the slaves)
• Events (select from data hold, data saving, or screen capture)
Connecting
External Devices Chapter 8
8.1 Connecting Multiple PW3390
(Synchronized Measurements)
• To avoid damaging the instrument, do not insert or remove connectors while the
power is on.
• Establish a one-point common earth ground point for all instruments in the measure-
ment system. Different grounding points could allow dangerous potential differences
between the GND terminals of the master and slaves. If sync cables are connected
under such conditions, malfunctions or damage could occur.
Display the MEAS screen on both master and slave units, when executing time control,
integration start/stop, data reset, and HOLDing event.
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